5719 lines
280 KiB
Plaintext
5719 lines
280 KiB
Plaintext
SENDMAIL RELEASE NOTES
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@(#)RELEASE_NOTES 8.8.8.4 (Berkeley) 10/24/97
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This listing shows the version of the sendmail binary, the version
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of the sendmail configuration files, the date of release, and a
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summary of the changes in that release.
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8.8.8/8.8.8 97/10/24
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If the check_relay ruleset failed, the relay= field was logged
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incorrectly. Problem noted by Kari Hurtta of the Finnish
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Meteorological Institute.
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If /usr/tmp/dead.letter already existed, sendmail could not
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add additional bounces to it. Problem noted by Thomas J.
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Arseneault of SRI International.
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If an SMTP mailer used a non-standard port number for the outgoing
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connection, it would be displayed incorrectly in verbose mode.
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Problem noted by John Kennedy of Cal State University, Chico.
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Log the ETRN parameter specified by the client before altering them
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to internal form. Suggested by Bob Kupiec of GES-Verio.
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EXPN and VRFY SMTP commands on malformed addresses were logging as
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User unknown with bogus delay= values. Change them to log
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the same as compliant addresses. Problem noted by Kari E.
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Hurtta of the Finnish Meteorological Institute.
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Ignore the debug resolver option unless using sendmail debug trace
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option for resolver. Problem noted by Greg Nichols of Wind
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River Systems.
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If SingleThreadDelivery was enabled and the remote server returned a
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protocol error on the DATA command, the connection would be
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closed but the persistent host status file would not be
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unlocked so other sendmail processes could not deliver to
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that host. Problem noted by Peter Wemm of DIALix.
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If queueing up a message due to an expensive mailer, don't increment
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the number of delivery attempts or set the last delivery
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attempt time so the message will be delivered on the next
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queue run regardless of MinQueueAge. Problem noted by
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Brian J. Coan of the Institute for Global Communications.
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Authentication warnings of "Processed from queue _directory_" and
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"Processed by _username_ with -C _filename_" would be logged
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with the incorrect timestamp. Problem noted by Kari E. Hurtta
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of the Finnish Meteorological Institute.
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Use a better heuristic for detecting GDBM.
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Log null connections on dropped connections. Problem noted by
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Jon Lewis of Florida Digital Turnpike.
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If class dbm maps are rebuilt, sendmail will now detect this and
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reopen the map. Previously, they could give stale
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results during a single message processing (but would
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recover when the next message was received). Fix from
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Joe Pruett of Q7 Enterprises.
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Do not log failures such as "User unknown" on -bv or SMTP VRFY
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requests. Problem noted by Kari E. Hurtta of the
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Finnish Meteorological Institute.
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Do not send a bounce message back to the sender regarding bad
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recipients if the SMTP connection is dropped before the
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message is accepted. Problem noted by Kari E. Hurtta of the
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Finnish Meteorological Institute.
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Use "localhost" instead of "[UNIX: localhost]" when connecting to
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sendmail via a UNIX pipe. This will allow rulesets using
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$&{client_name} to process without sending the string through
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dequote. Problem noted by Alan Barrett of Internet Africa.
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A combination of deferred delivery mode, a double bounce situation,
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and the inability to save a bounce message to
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/var/tmp/dead.letter would cause sendmail to send a bounce
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to postmaster but not remove the offending envelope from the
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queue causing it to create a new bounce message each time the
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queue was run. Problem noted by Brad Doctor of Net Daemons
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Associates.
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Remove newlines from hostname information returned via DNS. There are
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no known security implications of newlines in hostnames as
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sendmail filters newlines in all vital areas; however, this
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could cause confusing error messages.
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Starting with sendmail 8.8.6, mail sent with the '-t' option would be
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rejected if any of the specified addresses were bad. This
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behavior was modified to only reject the bad addresses and not
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the entire message. Problem noted by Jozsef Hollosi of
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SuperNet, Inc.
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Use Timeout.fileopen when delivering mail to a file. Suggested by
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Bryan Costales of InfoBeat, Inc.
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Display the proper Final-Recipient on DSN messages for non-SMTP
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mailers. Problem noted by Kari E. Hurtta of the
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Finnish Meteorological Institute.
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An error in calculating the available space in the list of addresses
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for logging deliveries could cause an address to be silently
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dropped.
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Include the initial user environment if sendmail is restarted via
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a HUP signal. This will give room for the process title.
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Problem noted by Jon Lewis of Florida Digital Turnpike.
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Mail could be delivered without a body if the machine does not
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support flock locking and runs out of processes during
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delivery. Fix from Chuck Lever of the University of Michigan.
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Drop recipient address from 251 and 551 SMTP responses per RFC 821.
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Problem noted by Kari E. Hurtta of the Finnish Meteorological
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Institute.
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Make sure non-rebuildable database maps are opened before the
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rebuildable maps (i.e. alias files) in case the database maps
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are needed for verifying the left hand side of the aliases.
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Problem noted by Lloyd Parkes of Victoria University.
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Make sure sender RFC822 source route addresses are alias expanded for
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bounce messages. Problem noted by Juergen Georgi of
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RUS University of Stuttgart.
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Minor lint fixes.
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Return a temporary error instead of a permanent error if an LDAP map
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search returns an error. This will allow sequenced maps which
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use other LDAP servers to be checked. Fix from Booker Bense
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of Stanford University.
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When automatically converting from quoted printable to 8bit text do
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not pad bare linefeeds with a space. Problem noted by Theo
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Nolte of the University of Technology Aachen, Germany.
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Portability:
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Non-standard C compilers may have had a problem compiling
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conf.c due to a standard C external declaration of
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setproctitle(). Problem noted by Ted Roberts of
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Electronic Data Systems.
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AUX: has a broken O_EXCL implementation. Reported by Jim
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Jagielski of jaguNET Access Services.
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BSD/OS: didn't compile if HASSETUSERCONTEXT was defined.
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Digital UNIX: Digital UNIX (and possibly others) moves
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loader environment variables into the loader memory
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area. If one of these environment variables (such as
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LD_LIBRARY_PATH) was the last environment variable,
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an invalid memory address would be used by the process
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title routine causing memory corruption. Problem
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noted by Sam Hartman of Mesa Internet Systems.
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GNU libc: uses an enum for _PC_CHOWN_RESTRICTED which caused
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chownsafe() to always return 0 even if the OS does
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not permit file giveaways. Problem noted by
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Yasutaka Sumi of The University of Tokyo.
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IRIX6: Syslog buffer size set to 512 bytes. Reported by
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Gerald Rinske of Siemens Business Services VAS.
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Linux: Pad process title with NULLs. Problem noted by
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Jon Lewis of Florida Digital Turnpike.
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SCO OpenServer 5.0: SIOCGIFCONF ioctl call returns an
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incorrect value for the number of interfaces.
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Problem noted by Chris Loelke of JetStream Internet
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Services.
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SINIX: Update for Makefile and syslog buffer size from Gerald
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Rinske of Siemens Business Services VAS.
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Solaris: Make sure HASGETUSERSHELL setting for SunOS is not
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used on a Solaris machine. Problem noted by
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Stephen Ma of Jtec Pty Limited.
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CONFIG: SINIX: Update from Gerald Rinske of Siemens Business
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Services VAS.
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MAKEMAP: Use a better heuristic for detecting GDBM.
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CONTRIB: expn.pl: Updated version from the author, David Muir Sharnoff.
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OP.ME: Document the F=i mailer flag. Problem noted by Per Hedeland of
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Ericsson.
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8.8.7/8.8.7 97/08/03
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If using Berkeley DB on systems without O_EXLOCK (open a file with
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an exclusive lock already set -- i.e., almost all systems
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except 4.4-BSD derived systems), the initial attempt at
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rebuilding aliases file if the database didn't already
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exist would fail. Patch from Raymund Will of LST Software
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GmbH.
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Bogus incoming SMTP commands would reset the SMTP conversation.
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Problem noted by Fredrik J<>nsson of the Royal Institute
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of Technology, Stockholm.
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Since TCP Wrappers includes setenv(), unsetenv(), and putenv(),
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some environments could give "multiple definitions" for these
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routines during compilation. If using TCP Wrappers, assume
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that these routines are included as though they were in the
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C library. Patch from Robert La Ferla.
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When a NEWDB database map was rebuilt at the same time it was being
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used by a queue run, the maps could be left locked for the
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duration of the queue run, causing other processes to hang.
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Problem noted by Kendall Libby of Shore.NET.
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In some cases, NoRecipientAction=add-bcc was being ignored, so the
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mail was passed on without any recipient header. This could
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cause problems downstream. Problem noted by Xander Jansen
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of SURFnet ExpertiseCentrum.
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Give error when GDBM is used with sendmail. GDBM's locking and
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linking of the .dir and .pag files interferes with sendmail's
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locking and security checks. Problems noted by Fyodor
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Yarochkin of the Kyrgyz Republic FreeNet.
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Don't fsync qf files if SuperSafe option is not set.
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Avoid extra calls to gethostbyname for addresses for which a
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gethostbyaddr found no value. Also, ignore any returns
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from gethostbyaddr that look like a dotted quad.
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If PTR lookup fails when looking up an SMTP peer, don't tag it as
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"may be forged", since at the network level we pretty much
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have to assume that the information is good.
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In some cases, errors during an SMTP session could leave files
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open or locked.
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Better handling of missing file descriptors (0, 1, 2) on startup.
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Better handling of non-setuid binaries -- avoids certain obnoxious
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errors during testing.
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Errors in file locking of NEWDB maps had the incorrect file name
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printed in the error message.
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If the AllowBogusHELO option were set and an EHLO with a bad or
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missing parameter were issued, the EHLO behaved like a HELO.
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Load limiting never kicked in for incoming SMTP transactions if the
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DeliverMode=background and any recipient was an alias or
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had a .forward file. From Nik Conwell of Boston University.
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On some non-Posix systems, the decision of whether chown(2) permits
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file giveaway was undefined. From Tetsu Ushijima of the
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Tokyo Institute of Technology.
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Fix race condition that could cause the body of a message to be
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lost (so only the header was delivered). This only occurs
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on systems that do not use flock(2), and only when a queue
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runner runs during a critical section in another message
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delivery. Based on a patch from Steve Schweinhart of
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Results Computing.
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If a qf file was found in a mail queue directory that had a problem
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(wrong ownership, bad format, etc.) and the file name was
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exactly MAXQFNAME bytes long, then instead of being tried
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once, it would be tried on every queue run. Problem noted
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by Bryan Costales of Mercury Mail.
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If the system supports an st_gen field in the status structure,
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include it when reporting that a file has changed after open.
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This adds a new compile flag, HAS_ST_GEN (0/1 option).
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This out to be checked as well as reported, since it is
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theoretically possible for an attacker to remove a file after
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it is opened and replace it with another file that has the
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same i-number, but some filesystems (notably AFS) return
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garbage in this field, and hence always look like the file
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has changed. As a practical matter this is not a security
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problem, since the files can be neither hard nor soft links,
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and on no filesystem (that I am aware of) is it possible to
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have two files on the same filesystem with the same i-number
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simultaneously.
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Delete the root Makefile from the distribution -- it is only for
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use internally, and does not work at customer sites.
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Fix botch that caused the second MAIL FROM: command in a single
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transaction to clear the entire transaction. Problem
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noted by John Kennedy of Cal State University, Chico.
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Work properly on machines that have _PATH_VARTMP defined without
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a trailing slash. (And a pox on vendors that decide to
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ignore the established conventions!) Problem noted by
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Gregory Neil Shapiro of WPI.
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Internal changes to make it easier to add another protocol family
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(intended for IPv6). Patches are from John Kennedy of
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CSU Chico.
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In certain cases, 7->8 bit MIME decoding of Base64 text could leave
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an extra space at the beginning of some lines. Problem
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noted by Charles Karney of Princeton University; fix based
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on a patch from Christophe Wolfhugel.
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Portability:
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Allow _PATH_VENDOR_CF to be set in Makefile for consistency
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with the _Sendmail_ book, 2nd edition. Note that
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the book is actually wrong: _PATH_SENDMAILCF should
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be used instead.
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AIX 3.x: Include <sys/select.h>. Patch from Gene Rackow
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of Argonne National Laboratory.
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OpenBSD from from Paul DuBois of the University of Wisconsin.
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RISC/os 4.0 from Paul DuBois of the University of Wisconsin.
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SunOS: Include <memory.h> to fix warning from util.c. From
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James Aldridge of EUnet Ltd.
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Solaris: Change STDIR (location of status file) to /etc/mail
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in Makefiles.
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Linux, Dynix, UNICOS: Remove -DNDBM and -lgdbm from
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Makefiles. Use NEWDB on Linux instead.
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NCR MP-RAS 3.x with STREAMware TCP/IP: SIOCGIFNUM ioctl
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exists but behaves differently than other OSes.
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Add SIOCGIFNUM_IS_BROKEN compile flag to get
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around the problem. Problem noted by Tom Moore of
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NCR Corp.
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HP-UX 9.x: fix compile warnings for old select API. Problem
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noted by Tom Smith of Digital Equipment Corp.
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UnixWare 2.x: compile warnings on offsetof macro. Problem
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noted by Tom Good of the Community Access Information
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Resource Network
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SCO 4.2: compile problems caused by a change in the type of
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the "length" parameters passed to accept, getpeername,
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getsockname, and getsockopt. Adds new compile flags
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SOCKADDR_SIZE_T and SOCKOPT_SIZE_T. Problem reported
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by Tom Good of St. Vincent's North Richmond Community
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Mental Health Center Residential Services.
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AIX 4: Use size_t for SOCKADDR_SIZE_T and SOCKOPT_SIZE_T.
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Suggested by Brett Hogden of Rochester Gas & Electric
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Corp.
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Linux: avoid compile problem for versions of <setjmp.h> that
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#define both setjmp and longjmp. Problem pointed out
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by J.R. Oldroyd of TerraNet.
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CONFIG: SCO UnixWare 2.1: Support for OSTYPE(sco-uw-2.1)
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from Christopher Durham of SCO.
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CONFIG: NEXTSTEP: define confCW_FILE to
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/etc/sendmail/sendmail.cw to match the usual
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configuration. Patch from Dennis Glatting of
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PlainTalk.
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CONFIG: MAILER(fax) called a program that hasn't existed for a long
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time. Convert to use the HylaFAX 4.0 conventions. Suggested
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by Harry Styron.
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CONFIG: Improve sample anti-spam rulesets in cf/cf/knecht.mc. These
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are the rulesets in use on sendmail.org.
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MAKEMAP: give error on GDBM files.
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MAIL.LOCAL: Make error messages a bit more explicit, for example,
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telling more details on what actually changed when "file
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changed after open".
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CONTRIB: etrn.pl: Ignore comments in Fw files. Support multiple Fw
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files.
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CONTRIB: passwd-to-alias.pl: Handle 8 bit characters and '-'.
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NEW FILES:
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src/Makefiles/Makefile.OpenBSD
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src/Makefiles/Makefile.RISCos.4_0
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test/t_exclopen.c
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cf/ostype/sco-uw-2.1.m4
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DELETED FILES:
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Makefile
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8.8.6/8.8.6 97/06/14
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*************************************************************
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* The extensive assistance of Gregory Neil Shapiro of WPI *
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* in preparing this release is gratefully appreciated. *
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* Sun Microsystems has also provided resources toward *
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* continued sendmail development. *
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*************************************************************
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SECURITY: A few systems allow an open with the O_EXCL|O_CREAT open
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mode bits set to create a file that is a symbolic link that
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points nowhere. This makes it possible to create a root
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owned file in an arbitrary directory by inserting the symlink
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into a writable directory after the initial lstat(2) check
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determined that the file did not exist. The only verified
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example of a system having these odd semantics for O_EXCL
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and symbolic links was HP-UX prior to version 9.07. Most
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systems do not have the problem, since a exclusive create
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of a file disallows symbolic links. Systems that have been
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verified to NOT have the problem include AIX 3.x, *BSD,
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DEC OSF/1, HP-UX 9.07 and higher, Linux, SunOS, Solaris,
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and Ultrix. This is a potential exposure on systems that
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have this bug and which do not have a MAILER-DAEMON alias
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pointing at a legitimate account, since this will cause old
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mail to be dropped in /var/tmp/dead.letter.
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SECURITY: Problems can occur on poorly managed systems, specifically,
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if maps or alias files are in world writable directories.
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If your system has alias maps in writable directories, it
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is potentially possible for an attacker to replace the .db
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(or .dir and .pag) files by symbolic links pointing at
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another database; this can be used either to expose
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information (e.g., by pointing an alias file at /etc/spwd.db
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and probing for accounts), or as a denial-of-service attack
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(by trashing the password database). The fix disallows
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symbolic links entirely when rebuilding alias files or on
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maps that are in writable directories, and always warns on
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writable directories; 8.9 will probably consider writable
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directories to be fatal errors. This does not represent an
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exposure on systems that have alias files in unwritable
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system directories.
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SECURITY: disallow .forward or :include: files that are links (hard
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or soft) if the parent directory (or any directory in the
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path) is writable by anyone other than the owner. This is
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similar to the previous case for user files. This change
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should not affect most systems, but is necessary to prevent
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an attacker who can write the directory from pointing such
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files at other files that are readable only by the owner.
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SECURITY: Tighten safechown rules: many systems will say that they
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have a safe (restricted to root) chown even on files that
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are mounted from another system that allows owners to give
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away files. The new rules are very strict, trusting file
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ownership only in those few cases where the system has
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been verified to be at least as paranoid as necessary.
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However, it is possible to relax the rules to partially
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trust the ownership if the directory path is not world or
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group writable. This might allow someone who has a legitimate
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:include: file (referenced directly from /etc/aliases) to
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become another non-root user if the :include: file is in a
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non-writable directory on an NFS-mounted filesystem where
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the local system says that giveaway is denied but it is
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actually permitted. I believe this to be a very small set
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of cases. If in doubt, do not point :include: aliases at
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NFS-mounted filesystems.
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SECURITY: When setting a numeric group id using the RunAsUser option
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(e.g., "O RunAsUser=10:20", the group id would not be set.
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Implicit group ids (e.g., "O RunAsUser=mailnull") or alpha
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group ids (e.g., "O RunAsUser=mailuser:mailgrp") worked fine.
|
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The user id was still set properly. Problem noted by Uli
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Pralle of the Technical University of Berlin.
|
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Save the initial gid set for use when checking for if the
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PrivacyOptions=restrictmailq option is set. Problem reported
|
||
by Wolfgang Ley of DFN-CERT.
|
||
Make 55x reply codes to the SMTP DATA-"." be non-sticky (i.e., a
|
||
failure on one message won't affect future messages to the
|
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same host).
|
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IP source route printing had an "off by one" error that would
|
||
affect any options that came after the route option. Patch
|
||
from Theo de Raadt.
|
||
The "Message is too large" error didn't successfully bounce the error
|
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back to the sender. Problem reported by Stephen More of
|
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PSI; patch from Gregory Neil Shapiro of WPI.
|
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Change SMTP status code 553 to map into Extended code 5.1.0 (instead
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of 5.1.3); it apparently gets used in multiple ways.
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Suggested by John Myers of Portola Communications.
|
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Fix possible extra null byte generated during collection if errors
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occur at the beginning of the stream. Patch contributed by
|
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Andrey A. Chernov and Gregory Neil Shapiro.
|
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Code changes to avoid possible reentrant call of malloc/free within
|
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a signal handler. Problem noted by John Beck of Sun
|
||
Microsystems.
|
||
Move map initialization to be earlier so that check_relay ruleset
|
||
will have the latest version of the map data. Problem noted
|
||
by Paul Forgey of Metainfo; patch from Gregory Neil Shapiro.
|
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If there are fatal errors during the collection phase (e.g., message
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too large) don't send the bogus message.
|
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Avoid "cannot open xfAAA00000" messages when sending to aliases that
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||
have errors and have owner- aliases. Problem noted by Michael
|
||
Barber of MTU; fix from Gregory Neil Shapiro of WPI.
|
||
Avoid null pointer dereference on illegal Boundary= parameters in
|
||
multipart/mixed Content-Type: header. Problem noted by
|
||
Richard Muirden of RMIT University.
|
||
Always print error messages during newaliases (-bi) even if the
|
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ErrorMode is not set to "print". Fix from Gregory Neil
|
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Shapiro.
|
||
Test mode could core dump if you did a /map lookup in an optional map
|
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that could not be opened. Based on a fix from John Beck of
|
||
Sun Microsystems.
|
||
If DNS is misconfigured so that the last MX record tried points to
|
||
a host that does not have an A record, but other MX records
|
||
pointed to something reasonable, don't bounce the message
|
||
with a "host unknown" error. Note that this should really
|
||
be fixed in the zone file for the domain. Problem noted by
|
||
Joe Rhett of Navigist, Inc.
|
||
If a map fails (e.g., DNS times out) on all recipient addresses, mark
|
||
the message as having been tried; otherwise the next queue
|
||
run will not realize that this is a second attempt and will
|
||
retry immediately. Problem noted by Bryan Costales of
|
||
Mercury Mail.
|
||
If the clock is set backwards, and a MinQueueAge is set, no jobs
|
||
will be run until the later setting of the clock is reached.
|
||
"Problem" (I use the term loosely) noted by Eric Hagberg of
|
||
Morgan Stanley.
|
||
If the load average rises above the cutoff threshold (above which
|
||
sendmail will not process the queue at all) during a queue
|
||
run, abort the queue run immediately. Problem noted by
|
||
Bryan Costales of Mercury Mail.
|
||
The variable queue processing algorithm (based on the message size,
|
||
number of recipients, message precedence, and job age) was
|
||
non-functional -- either the entire queue was processed or
|
||
none of the queue was processed. The updated algorithm
|
||
does no queue run if a single recipient zero size job will
|
||
not be run.
|
||
If there is a fatal ("panic") message that will cause sendmail to
|
||
die immediately, never hold the error message for future
|
||
printing.
|
||
Force ErrorMode=print in -bt mode so that all errors are printed
|
||
regardless of the setting of the ErrorMode option in the
|
||
configuration file. Patch from Gregory Neil Shapiro.
|
||
New compile flag HASSTRERROR says that this OS has the strerror(3)
|
||
routine available in one of the libraries. Use it in conf.h.
|
||
The -m (match only) flag now works on host class maps.
|
||
If class hash or btree maps are rebuilt, sendmail will now detect
|
||
this and reopen the map. Previously, they could give
|
||
erroneous results during a single message processing
|
||
(but would recover when the next message was received).
|
||
Don't delete zero length queue files when doing queue runs until the
|
||
files are at least ten minutes old. This avoids a potential
|
||
race condition: the creator creates the qf file, getting back
|
||
a file descriptor. The queue runner locks it and deletes it
|
||
because it is zero length. The creator then writes the
|
||
descriptor that is now for a disconnected file, and the
|
||
job goes away. Based on a suggestion by Bryan Costales.
|
||
When determining the "validated" host name ($_ macro), do a forward
|
||
(A) DNS lookup on the result of the PTR lookup and compare
|
||
results. If they differ or if the PTR lookup fails, tag the
|
||
address as "may be forged".
|
||
Log null connections (i.e., hosts that connect but do not do any
|
||
substantive activity on the connection before disconnecting;
|
||
"substantive" is defined to be MAIL, EXPN, VRFY, or ETRN.
|
||
Always permit "writes" to /dev/null regardless of the link count.
|
||
This is safe because /dev/null is special cased, and no open
|
||
or write is ever actually attempted. Patch from Villy Kruse
|
||
of TwinCom.
|
||
If a message cannot be sent because of a 552 (exceeded storage
|
||
allocation) response to the MAIL FROM:<>, and a SIZE= parameter
|
||
was given, don't return the body in the bounce, since there
|
||
is a very good chance that the message will double-bounce.
|
||
Fix possible line truncation if a quoted-printable had an =00 escape
|
||
in the body. Problem noted by Charles Karney of the Princeton
|
||
Plasma Physics Laboratory.
|
||
Notify flags (e.g., -NSUCCESS) were lost on user+detail addresses.
|
||
Problem noted by Kari Hurtta of the Finnish Meteorological
|
||
Institute.
|
||
The MaxDaemonChildren option wasn't applying to queue runs as
|
||
documented. Note that this increases the potential denial
|
||
of service problems with this option: an attacker can
|
||
connect many times, and thereby lock out queue runs as well
|
||
as incoming connections. If you use this option, you should
|
||
run the "sendmail -bd" and "sendmail -q30m" jobs separately
|
||
to avoid this attack. Failure to limit noted by Matthew
|
||
Dillon of BEST Internet Communications.
|
||
Always give a message in newaliases if alias files cannot be
|
||
opened instead of failing silently. Suggested by Gregory
|
||
Neil Shapiro. This change makes the code match the O'Reilly
|
||
book (2nd edition).
|
||
Some older versions of the resolver could return with h_errno == -1
|
||
if no name server could be reached, causing mail to bounce
|
||
instead of queueing. Treat this like TRY_AGAIN. Fix from
|
||
John Beck of SunSoft.
|
||
If a :include: file is owned by a user that does not have an entry
|
||
in the passwd file, sendmail could dereference a null pointer.
|
||
Problem noted by Satish Mynam of Sun Microsystems.
|
||
Take precautions to make sure that the SMTP protocol cannot get out
|
||
of sync if (for example) an alias file cannot be opened.
|
||
Fix a possible race condition that can cause a SIGALRM to come in
|
||
immediately after a SIGHUP, causing the new sendmail to die.
|
||
Avoid possible hang on SVr3 systems when doing child reaping. Patch
|
||
from Villy Kruse of TwinCom.
|
||
Ignore improperly formatted SMTP reply codes. Previously these were
|
||
partially processed, which could cause confusing error
|
||
returns.
|
||
Fix possible bogus pointer dereference when doing ldapx map lookups
|
||
on some architectures.
|
||
Portability:
|
||
A/UX: from Jim Jagielski of NASA/GSFC.
|
||
glibc: SOCK_STREAM was changed from a #define to an enum,
|
||
thus breaking #ifdef SOCK_STREAM. Only option seems
|
||
to be to assume SOCK_STREAM if __GNU_LIBRARY__ is
|
||
defined. Problem reported by A Sun of the University
|
||
of Washington.
|
||
Solaris: use SIOCGIFNUM to get the number of interfaces on
|
||
the system rather than guessing at compile time.
|
||
Patch contributed by John Beck of Sun Microsystems.
|
||
Intel Paragon: from Wendy Lin of Purdue University.
|
||
GNU Hurd: from Miles Bader of the GNU project.
|
||
RISC/os 4.50 from Harlan Stenn of PFCS Corporation.
|
||
ISC Unix: wait never returns if SIGCLD signals are blocked.
|
||
Unfortunately releasing them opens a race condition,
|
||
but there appears to be no fix for this. Patch from
|
||
Gregory Neil Shapiro.
|
||
BIND 8.1 for IPv6 compatibility from John Kennedy.
|
||
Solaris: a bug in strcasecmp caused characters with the
|
||
high order bit set to apparently randomly match
|
||
letters -- for example, $| (0233) matches "i" and "I".
|
||
Problem noted by John Gregson of the University of
|
||
Cambridge.
|
||
IRIX 6.x: make Makefile.IRIX.6.2 apply to all 6.x. From
|
||
Kari Hurtta.
|
||
IRIX 6.x: Create Makefiles for systems that claim to be
|
||
IRIX64 but are 6.2 or higher (so use the regular
|
||
IRIX Makefile).
|
||
IRIX 6.x: Fix load average computation on 64 bit kernels.
|
||
Problem noted by Eric Hagberg of Morgan Stanley.
|
||
CONFIG: Some canonification was still done for UUCP-like addresses
|
||
even if FEATURE(nocanonify) was set. Problem pointed out by
|
||
Brian Candler.
|
||
CONFIG: In some cases UUCP mailers wouldn't properly recognize all
|
||
local names as local. Problem noted by Jeff Polk of BSDI;
|
||
fix provided by Gregory Neil Shapiro.
|
||
CONFIG: The "local:user" syntax entries in mailertables and other
|
||
"mailer:user" syntax locations returned an incorrect value
|
||
for the $h macro. Problem noted by Gregory Neil Shapiro.
|
||
CONFIG: Retain "+detail" information when forwarding mail to a
|
||
MAIL_HUB, LUSER_RELAY, or LOCAL_RELAY. Patch from Philip
|
||
Guenther of Gustavus Adolphus College.
|
||
CONFIG: Make sure user+detail works for FEATURE(virtusertable);
|
||
rules are the same as for aliasing. Based on a patch from
|
||
Gregory Neil Shapiro.
|
||
CONFIG: Break up parsing rules into several pieces; this should
|
||
have no functional change in this release, but makes it
|
||
possible to have better anti-spam rulesets in the future.
|
||
CONFIG: Disallow double dots in host names to avoid having the
|
||
HostStatusDirectory store status under the wrong name.
|
||
In some cases this can be used as a denial-of-service attack.
|
||
Problem noted by Ron Jarrell of Virginia Tech, patch from
|
||
Gregory Neil Shapiro.
|
||
CONFIG: Don't use F=m (multiple recipients per invocation) for
|
||
MAILER(procmail), but do pass F=Pn9 (include Return-Path:,
|
||
don't include From_, and convert to 8-bit). Suggestions
|
||
from Kimmo Suominen and Roderick Schertler.
|
||
CONFIG: Domains under $=M (specified with MASQUERADE_DOMAIN) where
|
||
being masqueraded as though FEATURE(masquerade_entire_domain)
|
||
was specified, even when it wasn't.
|
||
MAIL.LOCAL: Solaris 2.6 has snprintf. From John Beck of SunSoft.
|
||
MAIL.LOCAL: SECURITY: check to make sure that an attacker doesn't
|
||
"slip in" a symbolic link between the lstat(2) call and the
|
||
exclusive open. This is only a problem on System V derived
|
||
systems that allow an exclusive create on files that are
|
||
symbolic links pointing nowhere.
|
||
MAIL.LOCAL: If the final mailbox close() failed, the user id was
|
||
not reset back to root, which on some systems would cause
|
||
later mailboxes to fail. Also, any partial message would
|
||
not be truncated, which could result in repeated deliveries.
|
||
Problem noted by Bruce Evans via Peter Wemm (FreeBSD
|
||
developers).
|
||
MAKEMAP: Handle cases where O_EXLOCK is #defined to be 0. A similar
|
||
change to the sendmail map code was made in 8.8.3. Problem
|
||
noted by Gregory Neil Shapiro.
|
||
MAKEMAP: Give warnings on file problems such as map files that are
|
||
symbolic links; although makemap is not setuid root, it is
|
||
often run as root and hence has the potential for the same
|
||
sorts of problems as alias rebuilds.
|
||
MAKEMAP: Change compilation so that it will link properly on
|
||
NEXTSTEP.
|
||
CONTRIB: etrn.pl: search for Cw as well as Fw lines in sendmail.cf.
|
||
Accept an optional list of arguments following the server
|
||
name for the ETRN arguments to use (instead of $=w). Other
|
||
miscellaneous bug fixes. From Christian von Roques via
|
||
John Beck of Sun Microsystems.
|
||
CONTRIB: Add passwd-to-alias.pl, contributed by Kari Hurtta. This
|
||
Perl script converts GECOS information in the /etc/passwd
|
||
file into aliases, allowing for faster access to full name
|
||
lookups; it is also clever about adding aliases (to root)
|
||
for system accounts.
|
||
NEW FILES:
|
||
src/safefile.c
|
||
cf/ostype/gnuhurd.m4
|
||
cf/ostype/irix6.m4
|
||
contrib/passwd-to-alias.pl
|
||
src/Makefiles/Makefile.IRIX64.6.1
|
||
src/Makefiles/Makefile.IRIX64.6.x
|
||
RENAMED FILES:
|
||
src/Makefiles/Makefile.IRIX.6.2 => Makefile.IRIX.6.x
|
||
src/Makefiles/Makefile.IRIX64 => Makefile.IRIX64.6.0
|
||
|
||
8.8.5/8.8.5 97/01/21
|
||
SECURITY: Clear out group list during startup. Without this, sendmail
|
||
will continue to run with the group permissions of the caller,
|
||
even if RunAsUser is specified.
|
||
SECURITY: Make purgestat (-bH) be root-only. This is not in response
|
||
to any known attack, but it's best to be conservative.
|
||
Suggested by Peter Wemm of DIALix.
|
||
SECURITY: Fix buffer overrun problem in MIME code that has possible
|
||
security implications. Patch from Alex Garthwaite of the
|
||
University of Pennsylvania.
|
||
Use of a -f flag with a phrase attached (e.g., "-f 'Full Name <addr>'")
|
||
would truncate the address after "Full". Although the -f
|
||
syntax is incorrect (since it is in the envelope, it
|
||
shouldn't have comments and full names), the failure mode
|
||
was unnecessarily awful.
|
||
Fix a possible null pointer dereference when converting 8-bit data
|
||
to a 7-bit format. Problem noted by Jim Hutchins of
|
||
Sandia National Labs and David James of British Telecom.
|
||
Clear out stale state that affected F=9 on SMTP mailers in queue
|
||
runs. Although this really shouldn't be used (F=9 is for
|
||
final delivery only, and using it on an SMTP mailer makes
|
||
it possible for a message to be converted from 8->7->8->7
|
||
bits several times), it shouldn't have failed with a syserr.
|
||
Problem noted by Eric Hagberg of Morgan Stanley.
|
||
_Really_ fix the multiple :maildrop code in the user database
|
||
module. Patch from Roy Mongiovi of Georgia Tech.
|
||
Let F lines in the configuration file actually read root-only
|
||
files if the configuration file is safe. Based on a
|
||
patch from Keith Reynolds of SCO.
|
||
ETRN followed by QUIT would hold the connection open until the queue
|
||
run completed. Problem noted by Truck Lewis of TDK
|
||
Semiconductor Corp.
|
||
It turns out that despite the documentation, the TCP wrappers library
|
||
does _not_ log rejected connections. Do the logging ourselves.
|
||
Problem noted by Fletcher Mattox of the University of Texas
|
||
at Austin.
|
||
If sendmail finds a qf file in its queue directory that is an unknown
|
||
version (e.g., when backing out to an old version), the
|
||
error is reported on every queue run. Change it to only
|
||
give the error once (and rename the qf => Qf). Patch from
|
||
William A. Gianopoulos of Raytheon Company.
|
||
Start a new session when doing background delivery; currently it
|
||
ignored signals but didn't start a new signal, that caused
|
||
some problems if a background process tried to send mail
|
||
under certain circumstances. Problem noted by Eric Hagberg
|
||
of Morgan Stanley; fix from Kari Hurtta.
|
||
Simplify test for skipping a queue run to just check if the current
|
||
load average is >= the queueing load average. Previously
|
||
the check factored in some other parameters that caused it
|
||
to essentially never skip the queue run. Patch from Bryan
|
||
Costales.
|
||
If the SMTP server is running in "nullserver" mode (that is, it is
|
||
rejecting all commands), start sleeping after MAXBADCOMMAND
|
||
(25) commands; this helps prevent a bad guy from putting
|
||
you into a tight loop as a denial-of-service attack. Based
|
||
on an e-mail conversation with Brad Knowles of AOL.
|
||
Slow down when too many "light weight" commands have been issued;
|
||
this helps prevent a class of denial-of-service attacks.
|
||
The current values and defaults are:
|
||
MAXNOOPCOMMANDS 20 NOOP, VERB, ONEX, XUSR
|
||
MAXHELOCOMMANDS 3 HELO, EHLO
|
||
MAXVRFYCOMMANDS 6 VRFY, EXPN
|
||
MAXETRNCOMMANDS 8 ETRN
|
||
These will probably be configurable in a future release.
|
||
On systems that have uid_t typedefed to be an unsigned short, programs
|
||
that had the F=S flag and no U= equate would be invoked with
|
||
the real uid set to 65535 rather than being left unchanged.
|
||
In some cases, NOTIFY=NEVER was not being honored. Problem noted
|
||
by Steve Hubert of the University of Washington, Seattle.
|
||
Mail that was Quoted-Printable encoded and had a soft line break on
|
||
the last line (i.e., an incomplete continuation) had the last
|
||
line dropped. Since this appears to be illegal it isn't
|
||
clear what to do with it, but flushing the last line seems
|
||
to be a better "fail soft" approach. Based on a patch from
|
||
Eric Hagberg.
|
||
If AllowBogusHELO and PrivacyOptions=needmailhelo are both set, a
|
||
bogus HELO command still causes the "Polite people say HELO
|
||
first" error message. Problem pointed out by Chris Thomas
|
||
of UCLA; patch from John Beck of SunSoft.
|
||
Handle "sendmail -bp -qSfoobar" properly if restrictqrun is set
|
||
in PrivacyFlags. The -q shouldn't turn this command off.
|
||
Problem noted by Murray Kucherawy of Pacific Bell Internet;
|
||
based on a patch from Gregory Neil Shapiro of WPI.
|
||
Don't consider SMTP reply codes 452 or 552 (exceeded storage allocation)
|
||
in a DATA transaction to be sticky; these can occur because
|
||
a message is too large, and smaller messages should still go
|
||
through. Problem noted by Matt Dillon of Best Internet
|
||
Communications.
|
||
In some cases bounces were saved in /var/tmp/dead.letter even if they
|
||
had been successfully delivered to the envelope sender.
|
||
Problem noted Eric Hagberg of Morgan Stanley; solution from
|
||
Gregory Neil Shapiro of WPI.
|
||
Give better diagnostics on long alias lines. Based on code contributed
|
||
by Patrick Gosling of the University of Cambridge.
|
||
Increase the number of virtual interfaces that will be probed for
|
||
alternate names. Problem noted by Amy Rich of Shore.Net.
|
||
PORTABILITY:
|
||
UXP/DS V20L10 for Fujitsu DS/90: Makefile patches from
|
||
Toshiaki Nomura of Fujitsu Limited.
|
||
SunOS with LDAP support: compile problems with struct timeval.
|
||
Patch from Nick Cuccia of TCSI Corporation.
|
||
SCO: from Keith Reynolds of SCO.
|
||
Solaris: kstat load average computation wasn't being used.
|
||
Fixes from Michael Ju. Tokarev of Telecom Service, JSC
|
||
(Moscow).
|
||
OpenBSD: from Jason Downs of teeny.org.
|
||
Altos System V: from Tim Rice.
|
||
Solaris 2.5: from Alan Perry of SunSoft.
|
||
Solaris 2.6: from John Beck of SunSoft.
|
||
Harris Nighthawk PowerUX (mh6000 box): from Bob Miorelli
|
||
of Pratt & Whitney <miorelli@pweh.com>.
|
||
CONFIG: It seems that I hadn't gotten the Received: line syntax
|
||
_just_right_ yet. Tweak it again. I'll omit the names
|
||
of the "contributors" (quantity two) in this one case.
|
||
As of now, NO MORE DISCUSSION about the syntax of the
|
||
Received: line.
|
||
CONFIG: Although FEATURE(nullclient) uses EXPOSED_USER (class $=E),
|
||
it never inserts that class into the output file. Fix it
|
||
so it will honor EXPOSED_USER but will _not_ include root
|
||
automatically in this class. Problem noted by Ronan KERYELL
|
||
of Centre de Recherche en Informatique de l'<27>cole Nationale
|
||
Sup<75>rieure des Mines de Paris (CRI-ENSMP).
|
||
CONFIG: Clean up handling of "local:" syntax in relay specifications
|
||
such as LUSER_RELAY. This change permits the following
|
||
syntaxes: ``local:'' will send to the same user on the
|
||
local machine (e.g., in a mailertable entry for "host",
|
||
``local:'' will cause an address addressed to user@host to
|
||
go to user on the local machone). ``local:user'' will send
|
||
to the named user on the local machine. ``local:user@host''
|
||
is equivalent to ``local:user'' (the host is ignored). In
|
||
all cases, the original user@host is passed in $@ (i.e., the
|
||
detail information). Inspired by a report from Michael Fuhr.
|
||
CONFIG: Strip quotes from the first word of an "error:" host
|
||
indication. This lets you set (for example) the LUSER_RELAY
|
||
to be ``error:\"5.1.1\" Your Message Here''. Note the use
|
||
of the \" so that the resulting string is properly quoted.
|
||
Problem noted by Gregory Neil Shapiro of WPI.
|
||
OP.ME: documentation was inconsistent about whether sendmail did a
|
||
NOOP or a RSET to probe the connection (it does a RSET).
|
||
Inconsistency noted by Deeran Peethamparam.
|
||
OP.ME: insert additional blank pages so it will print properly on
|
||
a duplex printer. From Matthew Black of Cal State University,
|
||
Long Beach.
|
||
|
||
8.8.4/8.8.4 96/12/02
|
||
SECURITY: under some circumstances, an attacker could get additional
|
||
permissions by hard linking to files that were group
|
||
writable by the attacker. The solution is to disallow any
|
||
files that have hard links -- this will affect .forward,
|
||
:include:, and output files. Problem noted by Terry
|
||
Kyriacopoulos of Interlog Internet Services. As a
|
||
workaround, set UnsafeGroupWrites -- always a good idea.
|
||
SECURITY: the TryNullMXList (w) option should not be safe -- if it
|
||
is, it is possible to do a denial-of-service attack on
|
||
MX hosts that rely on the use of the null MX list. There
|
||
is no danger if you have this option turned off (the default).
|
||
Problem noted by Dan Bernstein. Also, make the DontInitGroups
|
||
unsafe. I know of no specific attack against this, although
|
||
a denial-of-service attack is probably possible, but in theory
|
||
you should not be able to safely tweak anything that affects
|
||
the permissions that are used when mail is delivered.
|
||
Purgestat could go into an infinite loop if one of the host status
|
||
directories somehow became empty. Problem noted by Roy
|
||
Mongiovi of Georgia Tech.
|
||
Processes got "lost" when counting children due to a race condition.
|
||
This caused "proc_list_probe: lost pid" messages to be logged.
|
||
Problem noted by several people.
|
||
On systems with System V SIGCLD child signal semantics (notably AIX
|
||
and HP-UX), mail transactions would print the message "451
|
||
SMTP-MAIL: lost child: No child processes". Problem noted
|
||
by several people.
|
||
Miscellaneous compiler warnings on picky compilers (or when setting
|
||
gcc to high warning levels). From Tom Moore of NCR Corp.
|
||
SMTP protocol errors, and most errors on MAIL FROM: lines should
|
||
not be persistent between runs, since they are based on the
|
||
message rather than the host. Problem noted by Matt Dillon
|
||
of Best Internet Communications.
|
||
The F=7 flag was ignored on SMTP mailers. Problem noted by Tom Moore
|
||
of NCR (a.k.a., AT&T Global Information Solutions).
|
||
Avoid the possibility of having a child daemon run to completion
|
||
(including closing the SMTP socket) before the parent has
|
||
had a chance to close the socket; this can cause the parent
|
||
to hang for a long time waiting for the socket to drain.
|
||
Patch from Don Lewis of TDK Semiconductor.
|
||
If the fork() failed in a queue run, the queue runners would not be
|
||
rescheduled (so queue runs would stop). Patch from Don Lewis.
|
||
Some error conditions in ETRN could cause output without an SMTP
|
||
status code. Problem noted by Don Lewis.
|
||
Multiple :maildrop addresses in the user database didn't work properly.
|
||
Patch from Roy Mongiovi of Georgia Tech.
|
||
Add ".db" automatically onto any user database spec that does not
|
||
already have it; this is for consistency with makemap, the
|
||
K line, and the documentation. Inconsistency pointed out
|
||
by Roy Mongiovi.
|
||
Allow sendmail to be properly called in nohup mode. Patch from
|
||
Kyle Jones of UUNET.
|
||
Change ETRN to ignore but still update host status files; previously
|
||
it would ignore them and not save the updated status, which
|
||
caused stale information to be maintained. Based on a patch
|
||
from Christopher Davis of Kapor Enterprises Inc. Also, have
|
||
ETRN ignore the MinQueueAge option.
|
||
Patch long term host status to recover more gracefully from an empty
|
||
host status file condition. Patch from NAKAMURA Motonori
|
||
of Kyoto University.
|
||
Several patches to signal handling code to fix potential race
|
||
conditions from Don Lewis.
|
||
Make it possible to compile with -DDAEMON=0 (previously it had some
|
||
compile errors). This turns DAEMON, QUEUE, and SMTP into
|
||
0/1 compilation flags. Note that DAEMON is an obsolete
|
||
compile flag; use NETINET instead. Solution based on a
|
||
patch from Bryan Costales.
|
||
PORTABILITY FIXES:
|
||
AIX4: getpwnam() and getpwuid() do a sequential scan of the
|
||
/etc/security/passwd file when called as root. This
|
||
is very slow on some systems. To speed it up, use the
|
||
(undocumented) _getpw{nam,uid}_shadow() routines.
|
||
Patch from Chris Thomas of UCLA/OAC Systems Group.
|
||
SCO 5.x: include -lprot in the Makefile. Patch from Bill
|
||
Glicker of Burrelle's Information Service.
|
||
NEWS-OS 4.x: need a definition for MODE_T to compile. Patch
|
||
from Makoto MATSUSHITA of Osaka University.
|
||
SunOS 4.0.3: compile problems. Patches from Andrew Cole of
|
||
Leeds University and SASABE Tetsuro of the University
|
||
of Tokyo.
|
||
DG/UX 5.4.4.11 from Brian J. Murrell of InterLinx Support
|
||
Services, Inc.
|
||
Domain/OS from Don (Truck) Lewis of TDK Semiconductor Corp.
|
||
I believe this to have only been a problem if you
|
||
compiled with -DUSE_VENDOR_CF_PATH -- another reason
|
||
to stick with /etc/sendmail.cf as your One True Path.
|
||
Digital UNIX (OSF/1 on Alpha) load average computation from
|
||
Martin Laubach of the Technischen Universit<69>t Wien.
|
||
CONFIG: change default Received: line to be multiple lines rather
|
||
than one long one. By popular demand.
|
||
MAIL.LOCAL: warnings weren't being logged on some systems. Patch
|
||
from Jerome Berkman of U.C. Berkeley.
|
||
MAKEMAP: be sure to zero hinfo to avoid cruft that can cause runs
|
||
to take a very long time. Problem noted by Yoshiro YONEYA
|
||
of NTT Software Corporation.
|
||
CONTRIB: add etrn.pl, contributed by John Beck.
|
||
NEW FILES:
|
||
contrib/etrn.pl
|
||
|
||
8.8.3/8.8.3 96/11/17
|
||
SECURITY: it was possible to get a root shell by lying to sendmail
|
||
about argv[0] and then sending it a signal. Problem noted
|
||
by Leshka Zakharoff <leshka@leshka.chuvashia.su> on the
|
||
best-of-security list.
|
||
Log sendmail binary version number in "Warning: .cf version level
|
||
(%d) exceeds program functionality (%d) message" -- this
|
||
should make it clearer to people that they are running
|
||
the wrong binary.
|
||
Fix a problem that occurs when you open an SMTP connection and then
|
||
do one or more ETRN commands followed by a MAIL command; at
|
||
the end of the DATA phase sendmail would incorrectly report
|
||
"451 SMTP-MAIL: lost child: No child processes". Problem
|
||
noted by Eric Bishop of Virginia Tech.
|
||
When doing text-based host canonification (typically /etc/hosts
|
||
lookup), a null host name would match any /etc/hosts entry
|
||
with space at the end of the line. Problem noted by Steve
|
||
Hubert of the University of Washington, Seattle.
|
||
7 to 8 bit BASE64 MIME conversions could duplicate bits of text.
|
||
Problem reported by Tom Smith of Digital Equipment Corp.
|
||
Increase the size of the DNS answer buffer -- the standard UDP packet
|
||
size PACKETSZ (512) is not sufficient for some nameserver
|
||
answers containing very many resource records. The resolver
|
||
may also switch to TCP and retry if it detects UDP packet
|
||
overflow. Also, allow for the fact that the resolver
|
||
routines res_query and res_search return the size of the
|
||
*un*truncated answer in case the supplied answer buffer it
|
||
not big enough to accommodate the entire answer. Patch from
|
||
Eric Wassenaar.
|
||
Improvements to MaxDaemonChildren code. If you think you have too
|
||
many children, probe the ones you have to verify that they
|
||
are still around. Suggested by Jared Mauch of CICnet, Inc.
|
||
Also, do this probe before growing the vector of children
|
||
pids; this previously caused the vector to grow indefinitely
|
||
due to a race condition. Problem reported by Kyle Jones of
|
||
UUNET.
|
||
On some architectures, <db.h> (from the Berkeley DB library) defines
|
||
O_EXLOCK to zero; this fools the map compilation code into
|
||
thinking that it can avoid race conditions by locking on open.
|
||
Change it to check for O_EXLOCK non-zero. Problem noted by
|
||
Leif Erlingsson of Data Lege.
|
||
Always call res_init() on startup (if compiled in, of course) to
|
||
allow the sendmail.cf file to tweak resolver flags; without
|
||
it, flag tweaks in ResolverOptions are ignored. Patch from
|
||
Andrew Sun of Merrill Lynch.
|
||
Improvements to host status printing code. Suggested by Steve Hubert
|
||
of the University of Washington, Seattle.
|
||
Change MinQueueAge option processing to do the check for the job age
|
||
when reading the queue file, rather than at the end; this
|
||
avoids parsing the addresses, which can do DNS lookups.
|
||
Problem noted by John Beck of InReference, Inc.
|
||
When MIME was being 7->8 bit decoded, "From " lines weren't being
|
||
properly escaped. Problem noted by Peter Nilsson of the
|
||
University of Linkoping.
|
||
In some cases, sendmail would retain root permissions during queue
|
||
runs even if RunAsUser was set. Problem noted by Mark
|
||
Thomas of Mark G. Thomas Consulting.
|
||
If the F=l flag was set on an SMTP mailer to indicate that it is
|
||
actually local delivery, and NOTIFY=SUCCESS is specified in
|
||
the envelope, and the receiving SMTP server speaks DSN, then
|
||
the DSN would be both generated locally and propogated to the
|
||
other end.
|
||
The U= mailer field didn't correctly extract the group id if the
|
||
user id was numeric. Problem noted by Kenneth Herron of
|
||
MCI Telecommunications Communications.
|
||
If a message exceeded the fixed maximum size on input, the body of
|
||
the message was included in the bounce. Note that this did
|
||
not occur if it exceeded the maximum _output_ size. Problem
|
||
reported by Kyle Jones of UUNET.
|
||
PORTABILITY FIXES:
|
||
AIX4: 4.1 does't have a working setreuid(2); change the
|
||
AIX4 defines to use seteuid(2) instead, which
|
||
works on 4.1 as well as 4.2. Problem noted by
|
||
H<>kan Lindholm of interAF, Sweden.
|
||
AIX4: use tzname[] vector to determine time zone name.
|
||
Patch from NAKAMURA Motonori of Kyoto University.
|
||
MkLinux: add Makefile.Linux.ppc and OSTYPE(mklinux) support.
|
||
Contributed by Paul DuBois <dubois@primate.wisc.edu>.
|
||
Solaris: kstat(3k) support for retrieving the load average.
|
||
This adds the LA_KSTAT definition for LA_TYPE.
|
||
The outline of the implementation was contributed
|
||
by Michael Tokarev of Telecom Service, JSC, Moscow.
|
||
HP-UX 10.0 gripes about the (perfectly legal!) forward
|
||
declaration of struct rusage at the top of conf.h;
|
||
change it to only be included if you are using gcc,
|
||
which is apparently the only compiler that requires
|
||
it in the first place. Problem noted by Jeff
|
||
Earickson of Colby College.
|
||
IRIX: don't default to using gcc. IRIX is a civilized
|
||
operating system that comes with a decent compiler
|
||
by default. Problem noted by Barry Bouwsma and
|
||
Kari Hurtta.
|
||
CONFIG: specify F=9 as default in FEATURE(local_procmail) for
|
||
consistency with other local mailers. Inconsistency
|
||
pointed out by Teddy Hogeborn <teddy@fukt.hk-r.se>.
|
||
CONFIG: if the "limited best mx" feature is used (to reduce DNS
|
||
overhead) as part of the bestmx_is_local feature, the
|
||
domain part was dropped from the name. Patch from Steve
|
||
Hubert of the University of Washington, Seattle.
|
||
CONFIG: catch addresses of the form "user@.dom.ain"; these could
|
||
end up being translated to the null host name, which would
|
||
return any entry in /etc/hosts that had a space at the end
|
||
of the line. Problem noted by Steve Hubert of the
|
||
University of Washington, Seattle.
|
||
CONFIG: add OSTYPE(aix4). From Michael Sofka of Rensselaer
|
||
Polytechnic Institute.
|
||
MAKEMAP: tweak hash and btree parameters for better performance.
|
||
Patch from Matt Dillon of Best Internet Communications.
|
||
NEW FILES:
|
||
src/Makefiles/Makefile.Linux.ppc
|
||
cf/ostype/aix4.m4
|
||
cf/ostype/mklinux.m4
|
||
|
||
8.8.2/8.8.2 96/10/18
|
||
SECURITY: fix a botch in the 7-bit MIME patch; the previous patch
|
||
changed the code but didn't fix the problem.
|
||
PORTABILITY FIXES:
|
||
Solaris: Don't use the system getusershell(3); it can
|
||
apparently corrupt the heap in some circumstances.
|
||
Problem found by Ken Pizzini of Spry, Inc.
|
||
OP.ME: document several mailer flags that were accidently omitted
|
||
from this document. These flags were F=d, F=j, F=R, and F=9.
|
||
CONFIG: no changes.
|
||
|
||
8.8.1/8.8.1 96/10/17
|
||
SECURITY: unset all environment variables that the resolver will
|
||
examine during queue runs and daemon mode. Problem noted
|
||
by Dan Bernstein of the University of Illinois at Chicago.
|
||
SECURITY: in some cases an illegal 7-bit MIME-encoded text/plain
|
||
message could overflow a buffer if it was converted back
|
||
to 8 bits. This caused core dumps and has the potential
|
||
for a remote attack. Problem first noted by Gregory Shapiro
|
||
of WPI.
|
||
Avoid duplicate deliveries of error messages on systems that don't
|
||
have flock(2) support. Patch from Motonori Nakamura of
|
||
Kyoto University.
|
||
Ignore null FallBackMX (V) options. If this option is null (as
|
||
opposed to undefined) it can cause "null signature" syserrs
|
||
on illegal host names.
|
||
If a Base64 encoded text/plain message has no trailing newline in
|
||
the encoded text, conversion back to 8 bits will drop the
|
||
final line. Problem noted by Pierre David.
|
||
If running with a RunAsUser, sendmail would give bogus "cannot
|
||
setuid" (or seteuid, or setreuid) messages on some systems.
|
||
Problem pointed out by Jordan Mendelson of Web Services, Inc.
|
||
Always print error messages in -bv mode -- previously, -bv would
|
||
be absolutely silent on errors if the error mode was sent
|
||
to (say) mail-back. Problem noted by Kyle Jones of UUNET.
|
||
If -qI/R/S is set (or the ETRN command is used), ignore all long
|
||
term host status. This is necessary because it is common
|
||
to do this when you know a host has just come back up.
|
||
Disallow duplicate HELO/EHLO commands as required by RFC 1651 section
|
||
4.2. Excessive permissiveness noted by Lee Flight of the
|
||
University of Leicester.
|
||
If a service (such as NIS) is specified as the last entry in the
|
||
service switch, but that service is not compiled in, sendmail
|
||
would return a temporary failure when an entry was not found
|
||
in the map. This caused the message to be queued instead of
|
||
bouncing immediately. Problem noted by Harry Edmon of the
|
||
University of Washington.
|
||
PORTABILITY FIXES:
|
||
Solaris 2.3 had compilation problems in conf.c. Several
|
||
people pointed this out.
|
||
NetBSD from Charles Hannum of MIT.
|
||
AIX4 improvements based on info from Steve Bauer of South
|
||
Dakota School of Mines & Technology.
|
||
CONFIG: ``error:code message'' syntax was broken in virtusertable.
|
||
Patch from Gil Kloepfer Jr.
|
||
CONFIG: if FEATURE(nocanonify) was specified, hosts in $=M (set
|
||
using MASQUERADE_DOMAIN) were not masqueraded unless they
|
||
were also in $=w. Problem noted by Zoltan Basti of
|
||
Softec.
|
||
MAIL.LOCAL: patches to compile and link cleanly on AIX. Based
|
||
on a patch from Eric Hagberg of Morgan Stanley.
|
||
MAIL.LOCAL: patches to compile on NEXTSTEP. From Patrick Nolan
|
||
of Stanford via Robert La Ferla.
|
||
|
||
8.8.0/8.8.0 96/09/26
|
||
Under some circumstances, Bcc: headers would not be properly
|
||
deleted. Pointed out by Jonathan Kamens of OpenVision.
|
||
Log a warning if the sendmail daemon is invoked without a full
|
||
pathname, which prevents "kill -1" from working. I was
|
||
urged to put this in by Andrey A. Chernov of DEMOS (Russia).
|
||
Fix small buffer overflow. Since the data in this buffer was not
|
||
read externally, there was no security problem (and in fact
|
||
probably wouldn't really overflow on most compilers). Pointed
|
||
out by KIZU takashi of Osaka University.
|
||
Fix problem causing domain literals such as [1.2.3.4] to be ignored
|
||
if a FallbackMXHost was specified in the configuration file
|
||
-- all mail would be sent to the fallback even if the original
|
||
host was accessible. Pointed out by Munenari Hirayama of
|
||
NSC (Japan).
|
||
A message that didn't terminate with a newline would (sometimes) not
|
||
have the trailing "." added properly in the SMTP dialogue,
|
||
causing SMTP to hang. Patch from Per Hedeland of Ericsson.
|
||
The DaemonPortOptions suboption to bind to a particular address was
|
||
incorrect and nonfunctional due to a misunderstanding of the
|
||
semantics of binding on a passive socket. Patch from
|
||
NIIBE Yutaka of Mitsubishi Research Institute.
|
||
Increase the number of MX hosts for a single name to 100 to better
|
||
handle the truly huge service providers such as AOL, which
|
||
has 13 at the moment (and climbing). In order to avoid
|
||
trashing memory, the buffer for all names has only been
|
||
slightly increased in size, to 12.8K from 10.2K -- this means
|
||
that if a single name had 100 MX records, the average size
|
||
of those records could not exceed 128 bytes. Requested by
|
||
Brad Knowles of America On Line.
|
||
Restore use of IDENT returns where the OSTYPE field equals "OTHER".
|
||
Urged by Dan Bernstein of U.C. Berkeley.
|
||
Print q_statdate and q_specificity in address structure debugging
|
||
printout.
|
||
Expand MCI structure flag bits for debugging output.
|
||
Support IPv6-style domain literals, which can have colons between
|
||
square braces.
|
||
Log open file descriptors for the "cannot dup" messages in deliver();
|
||
this is an attempt to track down a bug that one person seems
|
||
to be having (it may be a Solaris bug!).
|
||
DSN NOTIFY parameters were not properly propogated across queue runs;
|
||
this caused the NOTIFY info to sometimes be lost. Problem
|
||
pointed out by Claus Assmann of the
|
||
Christian-Albrechts-University of Kiel.
|
||
The statistics gathered in the sendmail.st file were too high; in
|
||
some cases failures (e.g., user unknown or temporary failure)
|
||
would count as a delivery as far as the statistics were
|
||
concerned. Problem noted by Tom Moore of AT&T GIS.
|
||
Systems that don't have flock() would not send split envelopes in
|
||
the initial run. Problem pointed out by Leonard Zubkoff of
|
||
Dandelion Digital.
|
||
Move buffer overflow checking -- these primarily involve distrusting
|
||
results that may come from NIS and DNS.
|
||
4.4-BSD-derived systems, including FreeBSD, NetBSD, and BSD/OS didn't
|
||
include <paths.h> and hence had the wrong pathnames for a few
|
||
things like /var/tmp. Reported by Matthew Green.
|
||
Conditions were reversed for the Priority: header, resulting in all
|
||
values being interpreted as non-urgent except for non-urgent,
|
||
which was interpreted as normal. Patch from Bryan Costales.
|
||
The -o (optional) flag was being ignored on hash and btree maps
|
||
since 8.7.2. Fix from Bryan Costales.
|
||
Content-Types listed in class "q" will always be encoded as
|
||
Quoted-Printable (or more accurately, will never be encoded
|
||
as base64). The class can have primary types (e.g., "text")
|
||
or full types (e.g., "text/plain"). Based on a suggestion by
|
||
Marius Olafsson of the University of Iceland.
|
||
Define ${envid} to be the original envelope id (from the ESMTP DSN
|
||
dialogue) so it can be passed to programs in mailers.
|
||
Define ${bodytype} to be the body type (from the -B flag or the
|
||
BODY= ESMTP parameter) so it can be passed to programs in
|
||
mailers.
|
||
Cause the VRFY command to return 252 instead of 250 unless the F=q
|
||
flag is set in the mailer descriptor. Suggested by John
|
||
Myers of CMU.
|
||
Implement ESMTP ETRN command to flush the queue for a specific host.
|
||
The command takes a host name; data for that host is
|
||
immediately (and asynchronously) flushed. Because this shares
|
||
the -qR implementation, other hosts may be attempted, but
|
||
there should be no security implications. Implementation
|
||
from John Beck of InReference, Inc. See RFC 1985 for details.
|
||
Add three new command line flags to pass in DSN parameters: -V envid
|
||
(equivalent to ENVID=envid on the MAIL command), -R ret
|
||
(equivalent to RET=ret on the MAIL command), and -Nnotify
|
||
(equivalent to NOTIFY=notify on the RCPT command). Note
|
||
that the -N flag applies to all recipients; there is no way
|
||
to specify per-address notifications on the command line,
|
||
nor is there an equivalent for the ORCPT= per-address
|
||
parameter.
|
||
Restore LogLevel option to be safe (it can only be increased);
|
||
apparently I went into paranoid mode between 8.6 and 8.7
|
||
and made it unsafe. Pointed out by Dabe Murphy of the
|
||
University of Maryland.
|
||
New logging on log level 15: all SMTP traffic. Patches from
|
||
Andrew Gross of San Diego Supercomputer Center.
|
||
NetInfo property value searching code wasn't stopping when it found
|
||
a match. This was causing the wrong values to be found (and
|
||
had a memory leak). Found by Bastian Schleuter of TU-Berlin.
|
||
Add new F=0 (zero) mailer flag to turn off MX lookups. It was pointed
|
||
out by Bill Wisner of Electronics for Imaging that you can't
|
||
use the bracket address form for the MAIL_HUB macro, since
|
||
that causes the brackets to remain in the envelope recipient
|
||
address used for delivery. The simple fix (stripping off the
|
||
brackets in the config file) breaks the use of IP literal
|
||
addresses. This flag will solve that problem.
|
||
Add MustQuoteChars option. This is a list of characters that must
|
||
be quoted if they are found in the phrase part of an address
|
||
(that is, the full name part). The characters @,;:\()[] are
|
||
always in this list and cannot be removed. The default is
|
||
this list plus . and ' to match RFC 822.
|
||
Add AllowBogusHELO option; if set, sendmail will allow HELO commands
|
||
that do not include a host name for back compatibility with
|
||
some stupid SMTP clients. Setting this violates RFC 1123
|
||
section 5.2.5.
|
||
Add MaxDaemonChildren option; if this is set, sendmail will start
|
||
rejecting connections if it has more than this many
|
||
outstanding children accepting mail. Note that you may
|
||
see more processes than this because of outgoing mail; this
|
||
is for incoming connections only.
|
||
Add ConnectionRateThrottle option. If set to a positive value, the
|
||
number of incoming SMTP connections that will be permitted
|
||
in a single second is limited to this number. Connections are
|
||
not refused during this time, just deferred. The intent is to
|
||
flatten out demand so that load average limiting can kick in.
|
||
It is less radical than MaxDaemonChildren, which will stop
|
||
accepting connections even if all the connections are idle
|
||
(e.g., due to connection caching).
|
||
Add Timeout.hoststatus option. This interval (defaulting to 30m)
|
||
specifies how long cached information about the state of a
|
||
host will be kept before they are considered stale and the
|
||
host is retried. If you are using persistent host status
|
||
(i.e., the HostStatusDirectory option is set) this will apply
|
||
between runs; otherwise, it applies only within a single queue
|
||
run and hence is useful only for hosts that have large queues
|
||
that take a very long time to run.
|
||
Add SingleLineFromHeader option. If set, From: headers are coerced
|
||
into being a single line even if they had newlines in them
|
||
when read. This is to get around a botch in Lotus Notes.
|
||
Text class maps were totally broken -- if you ever retrieved the last
|
||
item in a table it would be truncated. Problem noted by
|
||
Gregory Neil Shapiro of WPI.
|
||
Extend the lines printed by the mailq command (== the -bp flag) when
|
||
-v is given to 120 characters; this allows more information
|
||
to be displayed. Suggested by Gregory Neil Shapiro of WPI.
|
||
Allow macro definitions (`D' lines) with unquoted commas; previously
|
||
this was treated as end-of-input. Problem noted by Bryan
|
||
Costales.
|
||
The RET= envelope parameter (used for DSNs) wasn't properly written
|
||
to the queue file. Fix from John Hughes of Atlantic
|
||
Technologies, Inc.
|
||
Close /var/tmp/dead.letter after a successful write -- otherwise
|
||
if this happens in a queue run it can cause nasty delays.
|
||
Problem noted by Mark Horton of AT&T.
|
||
If userdb entries pointed to userdb entries, and there were multiple
|
||
values for a given key, the database cursor would get
|
||
trashed by the recursive call. Problem noted by Roy Mongiovi
|
||
of Georgia Tech. Fixed by reading all the values and creating
|
||
a comma-separated list; thus, the -v output will be somewhat
|
||
different for this case.
|
||
Fix buffer allocation problem with Hesiod-based userdb maps when
|
||
HES_GETMAILHOST is defined. Based on a patch by Betty Lee
|
||
of Stanford University.
|
||
When envelopes were split due to aliases with owner- aliases, and
|
||
there was some error on one of the lists, more than one of
|
||
the owners would get the message. Problem pointed out by
|
||
Roy Mongiovi of Georgia Tech.
|
||
Detect excessive recursion in macro expansions, e.g., $X defined
|
||
in terms of $Y which is defined in terms of $X. Problem
|
||
noted by Bryan Costales; patch from Eric Wassenaar.
|
||
When using F=U to get "ugly UUCP" From_ lines, a buffer could in
|
||
some cases get trashed causing bogus From_ lines. Fix from
|
||
Kyle Jones of UUNET.
|
||
When doing load average initialization, if the nlist call for avenrun
|
||
failed, the second and subsequent lookups wouldn't notice
|
||
that fact causing bogus load averages to be returned. Noted
|
||
by Casper Dik of Sun Holland.
|
||
Fix problem with incompatibility with some versions of inet_aton that
|
||
have changed the return value to unsigned, so a check for an
|
||
error return of -1 doesn't work. Use INADDR_NONE instead.
|
||
This could cause mail to addresses such as [foo.com] to bounce
|
||
or get dropped. Problem noted by Christophe Wolfhugel of the
|
||
Pasteur Institute.
|
||
DSNs were inconsistent if a failure occured during the DATA phase
|
||
rather than the RCPT phase: the Action: would be correct, but
|
||
the detailed status information would be wrong. Problem noted
|
||
by Bob Snyder of General Electric Company.
|
||
Add -U command line flag and the XUSR ESMTP extension, both indicating
|
||
that this is the initial MUA->MTA submission. The flag current
|
||
does nothing, but in future releases (when MUAs start using
|
||
these flags) it will probably turn on things like DNS
|
||
canonification.
|
||
Default end-of-line string (E= specification on mailer [M] lines)
|
||
to \r\n on SMTP mailers. Default remains \n on non-SMTP
|
||
mailers.
|
||
Change the internal definition for the *file* and *include* mailers
|
||
to have $u in the argument vectors so that they aren't
|
||
misinterpreted as SMTP mailers and thus use \r\n line
|
||
termination. This will affect anyone who has redefined
|
||
either of these in their configuration file.
|
||
Don't assume that IDENT servers close the connection after a query;
|
||
responses can be newline terminated. From Terry Kennedy of
|
||
St. Peter's College.
|
||
Avoid core dumps on erroneous configuration files that have
|
||
$#mailer with nothing following. From Bryan Costales.
|
||
Avoid null pointer dereference with high debug values in unlockqueue.
|
||
Fix from Randy Martin of Clemson University.
|
||
Fix possible buffer overrun when expanding very large macros. Fix
|
||
from Kyle Jones of UUNET.
|
||
After 25 EXPN or VRFY commands, start pausing for a second before
|
||
processing each one. This avoids a certain form of denial
|
||
of service attack. Potential attack pointed out by Bryan
|
||
Costales.
|
||
Allow new named (not numbered!) config file rules to do validity
|
||
checking on SMTP arguments: check_mail for MAIL commands and
|
||
check_rcpt for RCPT commands. These rulesets can do anything
|
||
they want; their result is ignored unless they resolve to the
|
||
$#error mailer, in which case the indicated message is printed
|
||
and the command is rejected. Similarly, the check_compat
|
||
ruleset is called before delivery with "from_addr $| to_addr"
|
||
(the $| is a meta-symbol used to separate the two addresses);
|
||
it can give a "this sender can't send to this recipient"
|
||
notification. Note that this patch allows $| to stand alone
|
||
in rulesets.
|
||
Define new macros ${client_name}, ${client_addr}, and ${client_port}
|
||
that have the name, IP address, and port number (respectively)
|
||
of the SMTP client (that is, the entity at the other end of
|
||
the connection. These can be used in (e.g.) check_rcpt to
|
||
verify that someone isn't trying to relay mail through your
|
||
host inappropriately. Be sure to use the deferred evaluation
|
||
form, for example $&{client_name}, to avoid having these bound
|
||
when sendmail reads the configuration file.
|
||
Add new config file rule check_relay to check the incoming connection
|
||
information. Like check_compat, it is passed the host name
|
||
and host address separated by $| and can reject connections
|
||
on that basis.
|
||
Allow IDA-style recursive function calls. Code contributed by Mark
|
||
Lovell and Paul Vixie.
|
||
Eliminate the "No ! in UUCP From address!" message" -- instead, create
|
||
a virtual UUCP address using either a domain address or the $k
|
||
macro. Based on code contributed by Mark Lovell and Paul
|
||
Vixie.
|
||
Add Stanford LDAP map. Requires special libraries that are not
|
||
included with sendmail. Contributed by Booker C. Bense
|
||
<bbense@networking.stanford.edu>; contact him for support.
|
||
See also the src/READ_ME file.
|
||
Allow -dANSI to turn on ANSI escape sequences in debug output; this
|
||
puts metasymbols (e.g., $+) in reverse video. Really useful
|
||
only for debugging deep bits of code where it is important to
|
||
distinguish between the single-character metasymbol $+ and the
|
||
two characters $, +.
|
||
Changed ruleset 89 (executed in dumpstate()) to a named ruleset,
|
||
debug_dumpstate.
|
||
Add new UnsafeGroupWrites option; if set, .forward and :include:
|
||
files that are group writable are considered "unsafe" -- that
|
||
is, programs and files referenced from such files are not
|
||
valid recipients.
|
||
Delete bogosity test for FallBackMX host; this prevented it to be a
|
||
name that was not in DNS or was a domain-literal. Problem
|
||
noted by Tom May.
|
||
Change the introduction to error messages to more clearly delineate
|
||
permanent from temporary failures; if both existed in a
|
||
single message it could be confusing. Suggested by John
|
||
Beck of InReference, Inc.
|
||
The IngoreDot (i) option didn't work for lines that were terminated
|
||
with CRLF. Problem noted by Ted Stockwell of Secure
|
||
Computing Corporation.
|
||
Add a heuristic to improve the handling of unbalanced `<' signs in
|
||
message headers. Problem reported by Matt Dillon of Best
|
||
Internet Communications.
|
||
Check for bogus characters in the 0200-0237 range; since these are
|
||
used internally, very strange errors can occur if those
|
||
characters appear in headers. Problem noted by Anders Gertz
|
||
of Lysator.
|
||
Implement 7 -> 8 bit MIME conversions. This only takes place if the
|
||
recipient mailer has the F=9 flag set, and only works on
|
||
text/plain body types. Code contributed by Marius Olafsson
|
||
of the University of Iceland.
|
||
Special case "postmaster" name so that it is always treated as lower
|
||
case in alias files regardless of configuration settings;
|
||
this prevents some potential problems where "Postmaster" or
|
||
"POSTMASTER" might not match "postmaster". In most cases
|
||
this change is a no-op.
|
||
The -o map flag was ignored for text maps. Problem noted by Bryan
|
||
Costales.
|
||
The -a map flag was ignored for dequote maps. Problem noted by
|
||
Bryan Costales.
|
||
Fix core dump when a lookup of a class "prog" map returns no
|
||
response. Patch from Bryan Costales.
|
||
Log instances where sendmail is deferring or rejecting connections
|
||
on LogLevel 14. Suggested by Kyle Jones of UUNET.
|
||
Include port number in process title for network daemons. Suggested
|
||
by Kyle Jones of UUNET.
|
||
Send ``double bounces'' (errors that occur when sending an error
|
||
message) to the address indicated in the DoubleBounceAddress
|
||
option (default: postmaster). Previously they were always
|
||
sent to postmaster. Suggested by Kyle Jones of UUNET.
|
||
Add new mode, -bD, that acts like -bd in all respects except that
|
||
it runs in foreground. This is useful for using with a
|
||
wrapper that "watches" system services. Suggested by Kyle
|
||
Jones of UUNET.
|
||
Fix botch in spacing around (parenthesized) comments in addresses
|
||
when the comment comes before the address. Patch from
|
||
Motonori Nakamura of Kyoto University.
|
||
Use the prefix "Postmaster notify" on the Subject: lines of messages
|
||
that are being bounced to postmaster, rather than "Returned
|
||
mail". This permits the person who is postmaster more
|
||
easily determine what messages are to their role as
|
||
postmaster versus bounces to mail they actually sent. Based
|
||
on a suggestion by Motonori Nakamura.
|
||
Add new value "time" for QueueSortOrder option; this causes the queue
|
||
to be sorted strictly by the time of submission. Note that
|
||
this can cause very bad behaviour over slow lines (because
|
||
large jobs will tend to delay small jobs) and on nodes with
|
||
heavy traffic (because old things in the queue for hosts that
|
||
are down delay processing of new jobs). Also, this does not
|
||
guarantee that jobs will be delivered in submission order
|
||
unless you also set DeliveryMode=queue. In general, it should
|
||
probably only be used on the command line, and only in
|
||
conjunction with -qRhost.domain. In fact, there are very few
|
||
cases where it should be used at all. Based on an
|
||
implementation by Motonori Nakamura.
|
||
If a map lookup in ruleset 5 returns tempfail, queue the message in
|
||
the same manner as other rulesets. Previously a temporary
|
||
failure in ruleset 5 was ignored. Patch from Booker Bense
|
||
of Stanford University.
|
||
Don't proceed to the next MX host if an SMTP MAIL command returns a
|
||
5yz (permanent failure) code. The next MX host will still be
|
||
tried if the connection cannot be opened in the first place
|
||
or if the MAIL command returns a 4yz (temporary failure) code.
|
||
(It's hard to know what to do here, since neither RFC 974 nor
|
||
RFC 1123 specify when to proceed to the next MX host.)
|
||
Suggested by Jonathan Kamens of OpenVision, Inc.
|
||
Add new "-t" flag for map definitions (the "K" line in the .cf file).
|
||
This causes map lookups that get a temporary failure (e.g.,
|
||
name server failure) to _not_ defer the delivery of the
|
||
message. This should only be used if your configuration file
|
||
is prepared to do something sensible in this case. Based on
|
||
an idea by Gregory Shapiro of WPI.
|
||
Fix problem finding network interface addresses. Patch from
|
||
Motonori Nakamura.
|
||
Don't reject qf entries that are not owned by your effective uid if
|
||
you are not running setuid; this makes management of certain
|
||
kinds of firewall setups difficult. Patch suggested by
|
||
Eamonn Coleman of Qualcomm.
|
||
Add persistent host status. This keeps the information normally
|
||
maintained within a single queue run in disk files that are
|
||
shared between sendmail instances. The HostStatusDirectory
|
||
is the directory in which the information is maintained. If
|
||
not set, persistent host status is turned off. If not a full
|
||
pathname, it is relative to the queue directory. A common
|
||
value is ".hoststat".
|
||
There are also two new operation modes:
|
||
* -bh prints the status of hosts that have had recent
|
||
connections.
|
||
* -bH purges the host statuses. No attempt is made to save
|
||
recent status information.
|
||
This feature was originally written by Paul Vixie of Vixie
|
||
Enterprises for KJS and adapted for V8 by Mark Lovell of
|
||
Bigrock Consulting. Paul's funding of Mark and Mark's patience
|
||
with my insistence that things fit cleanly into the V8
|
||
framework is gratefully appreciated.
|
||
New SingleThreadDelivery option (requires HostStatusDirectory to
|
||
operate). Avoids letting two sendmails on the local machine
|
||
open connections to the same remote host at the same time.
|
||
This reduces load on the other machine, but can cause mail to
|
||
be delayed (for example, if one sendmail is delivering a huge
|
||
message, other sendmails won't be able to send even small
|
||
messages). Also, it requires another file descriptor (for the
|
||
lock file) per connection, so you may have to reduce
|
||
ConnectionCacheSize to avoid running out of per-process
|
||
file descriptors. Based on the persistent host status code
|
||
contributed by Paul Vixie and Mark Lovell.
|
||
Allow sending to non-simple files (e.g., /dev/null) even if the
|
||
SafeFileEnvironment option is set. Problem noted by Bryan
|
||
Costales.
|
||
The -qR flag mistakenly matched flags in the "R" line of the queue
|
||
file. Problem noted by Bryan Costales.
|
||
If a job was aborted using the interrupt signal (e.g., control-C from
|
||
the keyboard), on some occasions an empty df file would be
|
||
left around; these would collect in the queue directory.
|
||
Problem noted by Bryan Costales.
|
||
Change the makesendmail script to enhance the search for Makefiles
|
||
based on release number. For example, on SunOS 5.5.1, it will
|
||
search for Makefile.SunOS.5.5.1, Makefile.SunOS.5.5, and then
|
||
Makefile.SunOS.5.x (in addition to the other rules, e.g.,
|
||
adding $arch). Problem noted by Jason Mastaler of Atlanta
|
||
Webmasters.
|
||
When creating maps using "newaliases", always map the keys to lower
|
||
case when creating the map unless the -f flag is specified on
|
||
the map itself. Previously this was done based on the F=u
|
||
flag in the local mailer, which meant you could create aliases
|
||
that you could never access. Problem noted by Bob Wu of DEC.
|
||
When a job was read from the queue, the bits causing notification on
|
||
failure or delay were always set. This caused those
|
||
notifications to be sent even if NOTIFY=NEVER had been
|
||
specified. Problem noted by Steve Hubert of the University
|
||
of Washington, Seattle.
|
||
Add new configurable routine validate_connection (in conf.c). This
|
||
lets you decide if you are willing to accept traffic from
|
||
this host. If it returns FALSE, all SMTP commands will return
|
||
"550 Access denied". -DTCPWRAPPERS will include support for
|
||
TCP wrappers; you will need to add -lwrap to the link line.
|
||
(See src/READ_ME for details.)
|
||
Don't include the "THIS IS A WARNING MESSAGE ONLY" banner on postmaster
|
||
bounces. Some people seemed to think that this could be
|
||
confusing (even though it is true). Suggested by Motonori
|
||
Nakamura.
|
||
Add new RunAsUser option; this causes sendmail to do a setuid to that
|
||
user early in processing to avoid potential security problems.
|
||
However, this means that all .forward and :include: files must
|
||
be readable by that user, and all files to be written must be
|
||
writable by that user and all programs will be executed by that
|
||
user. It is also incompatible with the SafeFileEnvironment
|
||
option. In other words, it may not actually add much to
|
||
security. However, it should be useful on firewalls and other
|
||
places where users don't have accounts and the aliases file is
|
||
well constrained.
|
||
Add Timeout.iconnect. This is like Timeout.connect except it is used
|
||
only on the first attempt to delivery to an address. It could
|
||
be set to be lower than Timeout.connect on the principle that
|
||
the mail should go through quickly to responsive hosts; less
|
||
responsive hosts get to wait for the next queue run.
|
||
Fix a problem on Solaris that occassionally causes programs
|
||
(such as vacation) to hang with their standard input connected
|
||
to a UDP port. It also created some signal handling problems.
|
||
The problems turned out to be an interaction between vfork(2)
|
||
and some of the libraries, particularly NIS/NIS+. I am
|
||
indebted to Tor Egge <tegge@idt.ntnu.no> for this fix.
|
||
Change user class map to do the same matching that actual delivery
|
||
will do instead of just a /etc/passwd lookup. This adds
|
||
fuzzy matching to the user map. Patch from Dan Oscarsson.
|
||
The Timeout.* options are not safe -- they can be used to create a
|
||
denial-of-service attack. Problem noted by Christophe
|
||
Wolfhugel.
|
||
Don't send PostMasterCopy messages in the event of a "delayed"
|
||
notification. Suggested by Barry Bouwsma.
|
||
Don't advertise "VERB" ESMTP extension if the "noexpn" privacy
|
||
option is set, since this disables VERB mode. Suggested
|
||
by John Hawkinson of MIT.
|
||
Complain if the QueueDirectory (Q) option is not set. Problem noted
|
||
by Motonori Nakamura of Kyoto University.
|
||
Only queue messages on transient .forward open failures if there
|
||
were no successful opens. The previous behaviour caused it
|
||
to queue even if a "fall back" .forward was found. Problem
|
||
noted by Ann-Kian Yeo of the Dept. of Information Systems
|
||
and Computer Science (DISCS), NUS, Singapore.
|
||
Don't do 8->7 bit conversions when bouncing a MIME message that
|
||
is bouncing because of a MIME error during 8->7 bit conversion;
|
||
the encapsulated message will bounce again, causing a loop.
|
||
Problem noted by Steve Hubert of the University of Washington.
|
||
Create xf (transcript) files using the TempFileMode option value
|
||
instead of 0644. Suggested by Ann-Kian Yeo of the
|
||
National University of Singapore.
|
||
Print errors if setgid/setuid/etc. fail during delivery. This helps
|
||
detect cases where DefaultUid is set to something that the
|
||
system can't cope with.
|
||
PORTABILITY FIXES:
|
||
Support for AIX/RS 2.2.1 from Mark Whetzel of Western
|
||
Atlas International.
|
||
Patches for Intel Paragon OSF/1 1.3 from Leo Bicknell
|
||
<bicknell@ufp.org>.
|
||
On DEC OSF/1 3.2 and earlier, the MatchGECOS code would only
|
||
work on the first recipient of a message due to a
|
||
bug in the getpwent family. If this is something you
|
||
use, you can define DEC_OSF_BROKEN_GETPWENT=1 for a
|
||
workaround. From Maximum Entropy of Sanford C.
|
||
Bernstein and Associates.
|
||
FreeBSD 1.1.5.1 uname -r returns a string containing
|
||
parentheses, which breaks makesendmail. Reported
|
||
by Piero Serini <piero@strider.ibenet.it>.
|
||
Sequent DYNIX/ptx 4.0.2 patches from Jack Woolley of
|
||
Systems and Computer Technology Corporation.
|
||
Solaris 2.x: omit the UUCP grade parameter (-g flag) because
|
||
it is system-dependent. Problem noted by J.J. Bailey
|
||
of Bailey Computer Consulting.
|
||
Pyramid NILE running DC/OSx support from Earle F. Ake of
|
||
Hassler Communication Systems Technology, Inc.
|
||
HP-UX 10.x compile glitches, reported by Anne Brink of the
|
||
U.S. Army and James Byrne of Harte & Lyne Limited.
|
||
NetBSD from Matthew Green of the NetBSD crew.
|
||
SCO 5.x from Keith Reynolds of SCO.
|
||
IRIX 6.2 from Robert Tarrall of the University of
|
||
Colorado and Kari Hurtta of the Finnish Meteorological
|
||
Institute.
|
||
UXP/DS (Fujitsu/ICL DS/90 series) support from Diego R.
|
||
Lopez, CICA (Seville).
|
||
NCR SVR4 MP-RAS 3.x support from Tom Moore of NCR.
|
||
PTX 3.2.0 from Kenneth Stailey of the US Department of Labor
|
||
Employment Standards Administration.
|
||
Altos System V (5.3.1) from Tim Rice of Multitalents.
|
||
Concurrent Systems Corporation Maxion from Donald R. Laster
|
||
Jr.
|
||
NetInfo maps (improved debugging and multi-valued aliases)
|
||
from Adrian Steinmann of Steinmann Consulting.
|
||
ConvexOS 11.5 (including SecureWare C2 and the Share Scheduler)
|
||
from Eric Schnoebelen of Convex.
|
||
Linux 2.0 mail.local patches from Horst von Brand.
|
||
NEXTSTEP 3.x compilation from Robert La Ferla.
|
||
NEXTSTEP 3.x code changes from Allan J. Nathanson of NeXT.
|
||
Solaris 2.5 configuration fixes for mail.local by Jim Davis
|
||
of the University of Arizona.
|
||
Solaris 2.5 has a working setreuid. Noted by David Linn of
|
||
Vanderbilt University.
|
||
Solaris changes for praliases, makemap, mailstats, and smrsh.
|
||
Previously you had to add -DSOLARIS in Makefile.dist;
|
||
this auto-detects. Based on a patch from Randall
|
||
Winchester of the University of Maryland.
|
||
CONFIG: add generic-nextstep3.3.mc file. Contributed by
|
||
Robert La Ferla of Hot Software.
|
||
CONFIG: allow mailertables to resolve to ``error:code message''
|
||
(where "code" is an exit status) on domains (previously
|
||
worked only on hosts). Patch from Cor Bosman of Xs4all
|
||
Foundation.
|
||
CONFIG: hooks for IPv6-style domain literals.
|
||
CONFIG: predefine ALIAS_FILE and change the prototype file so that
|
||
if it is undefined the AliasFile option is never set; this
|
||
should be transparent for most everyone. Suggested by John
|
||
Myers of CMU.
|
||
CONFIG: add FEATURE(limited_masquerade). Without this feature, any
|
||
domain listed in $=w is masqueraded. With it, only those
|
||
domains listed in a MASQUERADE_DOMAIN macro are masqueraded.
|
||
CONFIG: add FEATURE(masquerade_entire_domain). This causes
|
||
masquerading specified by MASQUERADE_DOMAIN to apply to all
|
||
hosts under those domains as well as the domain headers
|
||
themselves. For example, if a configuration had
|
||
MASQUERADE_DOMAIN(foo.com), then without this feature only
|
||
foo.com would be masqueraded; with it, *.foo.com would be
|
||
masqueraded as well. Based on an implementation by Richard
|
||
(Pug) Bainter of U. Texas.
|
||
CONFIG: add FEATURE(genericstable) to do a more general rewriting of
|
||
outgoing addresses. Defaults to ``hash -o /etc/genericstable''.
|
||
Keys are user names; values are outgoing mail addresses. Yes,
|
||
this does overlap with the user database, and figuring out
|
||
just when to use which one may be tricky. Based on code
|
||
contributed by Richard (Pug) Bainter of U. Texas with updates
|
||
from Per Hedeland of Ericsson.
|
||
CONFIG: add FEATURE(virtusertable) to do generalized rewriting of
|
||
incoming addresses. Defaults to ``hash -o /etc/virtusertable''.
|
||
Keys are either fully qualified addresses or just the host
|
||
part (with the @ sign). For example, a table containing:
|
||
info@foo.com foo-info
|
||
info@bar.com bar-info
|
||
@baz.org jane@elsewhere.net
|
||
would send all mail destined for info@foo.com to foo-info
|
||
(which is presumably an alias), mail addressed to info@bar.com
|
||
to bar-info, and anything addressed to anyone at baz.org will
|
||
be sent to jane@elsewhere.net. The names foo.com, bar.com,
|
||
and baz.org must all be in $=w. Based on discussions with
|
||
a great many people.
|
||
CONFIG: add nullclient configurations to define SMTP_MAILER_FLAGS.
|
||
Suggested by Richard Bainter.
|
||
CONFIG: add FAX_MAILER_ARGS to tweak the arguments passed to the
|
||
"fax" mailer.
|
||
CONFIG: allow mailertable entries to resolve to local:user; this
|
||
passes the original user@host in to procmail-style local
|
||
mailers as the "detail" information to allow them to do
|
||
additional clever processing. From Joe Pruett of
|
||
Teleport Corporation. Delivery to the original user can
|
||
be done by specifying "local:" (with nothing after the colon).
|
||
CONFIG: allow any context that takes "mailer:domain" to also take
|
||
"mailer:user@domain" to force mailing to the given user;
|
||
"local:user" can also be used to do local delivery. This
|
||
applies on *_RELAY and in the mailertable entries. Based
|
||
on a suggestion by Ribert Kiessling of Easynet.
|
||
CONFIG: Allow FEATURE(bestmx_is_local) to take an argument that
|
||
limits the possible domains; this reduces the number of DNS
|
||
lookups required to support this feature. For example,
|
||
FEATURE(bestmx_is_local, my.site.com) limits the lookups
|
||
to domains under my.site.com. Code contributed by Anthony
|
||
Thyssen <anthony@cit.gu.edu.au>.
|
||
CONFIG: LOCAL_RULESETS introduces any locally defined rulesets,
|
||
such as the check_rcpt ruleset. Suggested by Gregory Shapiro
|
||
of WPI.
|
||
CONFIG: MAILER_DEFINITIONS introduces any mailer definitions, in the
|
||
event you have to define local mailers. Suggested by
|
||
Gregory Shapiro of WPI.
|
||
CONFIG: fix cases where a three- (or more-) stage route-addr could
|
||
be misinterpreted as a list:...; syntax. Based on a patch by
|
||
Vlado Potisk <Vlado_Potisk@tempest.sk>.
|
||
CONFIG: Fix masquerading of UUCP addresses when the UUCP relay is
|
||
remotely connected. The address host!user was being
|
||
converted to host!user@thishost instead of host!user@uurelay.
|
||
Problem noted by William Gianopoulos of Raytheon Company.
|
||
CONFIG: add confTO_ICONNECT to set Timeout.iconnect.
|
||
CONFIG: change FEATURE(redirect) message from "User not local" to
|
||
"User has moved"; the former wording was confusing if the
|
||
new address is still on the local host. Based on a suggestion
|
||
by Andreas Luik.
|
||
CONFIG: add support in FEATURE(nullclient) for $=E (exposed users).
|
||
However, the class is not pre-initialized to contain root.
|
||
Suggested by Gregory Neil Shapiro.
|
||
CONTRIB: Remove XLA code at the request of the author, Christophe
|
||
Wolfhugel.
|
||
CONTRIB: Add re-mqueue.pl, contributed by Paul Pomes of Qualcomm.
|
||
MAIL.LOCAL: make it possible to compile mail.local on Solaris. Note
|
||
well: this produces a slightly different mailbox format (no
|
||
Content-Length: headers), file ownerships and modes are
|
||
different (not owned by group mail; mode 600 instead of 660),
|
||
and the local mailer flags will have to be tweaked (make them
|
||
match bsd4.4) in order to use this mailer. Patches from Paul
|
||
Hammann of the Missouri Research and Education Network.
|
||
MAIL.LOCAL: in some cases it could return EX_OK even though there
|
||
was a delivery error, such as if the ownership on the file
|
||
was wrong or the mode changed between the initial stat and
|
||
the open. Problem reported by William Colburn of the New
|
||
Mexico Institute of Mining and Technology.
|
||
MAILSTATS: handle zero length files more reliably. Patch from Bryan
|
||
Costales.
|
||
MAILSTATS: add man page contributed by Keith Bostic of BSDI.
|
||
MAKEMAP: The -d flag (to allow duplicate keys) to a btree map wasn't
|
||
honored. Fix from Michael Scott Shappe.
|
||
PRALIASES: add man page contributed by Keith Bostic of BSDI.
|
||
NEW FILES:
|
||
src/Makefiles/Makefile.AIX.2
|
||
src/Makefiles/Makefile.IRIX.6.2
|
||
src/Makefiles/Makefile.maxion
|
||
src/Makefiles/Makefile.NCR.MP-RAS.3.x
|
||
src/Makefiles/Makefile.SCO.5.x
|
||
src/Makefiles/Makefile.UXPDSV20
|
||
mailstats/mailstats.8
|
||
praliases/praliases.8
|
||
cf/cf/generic-nextstep3.3.mc
|
||
cf/feature/genericstable.m4
|
||
cf/feature/limited_masquerade.m4
|
||
cf/feature/masquerade_entire_domain.m4
|
||
cf/feature/virtusertable.m4
|
||
cf/ostype/aix2.m4
|
||
cf/ostype/altos.m4
|
||
cf/ostype/maxion.m4
|
||
cf/ostype/solaris2.ml.m4
|
||
cf/ostype/uxpds.m4
|
||
contrib/re-mqueue.pl
|
||
DELETED FILES:
|
||
src/Makefiles/Makefile.Solaris
|
||
contrib/xla/README
|
||
contrib/xla/xla.c
|
||
RENAMED FILES:
|
||
src/Makefiles/Makefile.NCR3000 => Makefile.NCR.MP-RAS.2.x
|
||
src/Makefiles/Makefile.SCO.3.2v4.2 => Makefile.SCO.4.2
|
||
src/Makefiles/Makefile.UXPDS => Makefile.UXPDSV10
|
||
src/Makefiles/Makefile.NeXT => Makefile.NeXT.2.x
|
||
src/Makefiles/Makefile.NEXTSTEP => Makefile.NeXT.3.x
|
||
|
||
8.7.6/8.7.3 96/09/17
|
||
SECURITY: It is possible to force getpwuid to fail when writing the
|
||
queue file, causing sendmail to fall back to running programs
|
||
as the default user. This is not exploitable from off-site.
|
||
Workarounds include using a unique user for the DefaultUser
|
||
(old u & g options) and using smrsh as the local shell.
|
||
SECURITY: fix some buffer overruns; in at least one case this allows
|
||
a local user to get root. This is not known to be exploitable
|
||
from off-site. The workaround is to disable chfn(1) commands.
|
||
|
||
8.7.5/8.7.3 96/03/04
|
||
Fix glitch in 8.7.4 when putting certain internal lines; this can
|
||
in some case cause connections to hang or messages to have
|
||
extra spaces in odd places. Patch from Eric Wassenaar;
|
||
reports from Eric Hall of Chiron Corporation, Stephen
|
||
Hansen of Stanford University, Dean Gaudet of HotWired,
|
||
and others.
|
||
|
||
8.7.4/8.7.3 96/02/18
|
||
SECURITY: In some cases it was still possible for an attacker to
|
||
insert newlines into a queue file, thus allowing access to
|
||
any user (except root).
|
||
CONFIG: no changes -- it is not a bug that the configuration
|
||
version number is unchanged.
|
||
|
||
8.7.3/8.7.3 95/12/03
|
||
Fix botch in name server timeout in RCPT code; this problem caused
|
||
two responses in SMTP, which breaks things horribly. Fix
|
||
from Gregory Neil Shapiro of WPI.
|
||
Verify that L= value on M lines cannot be negative, which could cause
|
||
negative array subscripting. Not a security problem since
|
||
this has to be in the config file, but it could have caused
|
||
core dumps. Pointed out by Bryan Costales.
|
||
Fix -d21 debug output for long macro names. Pointed out by Bryan
|
||
Costales.
|
||
PORTABILITY FIXES:
|
||
SCO doesn't have ftruncate. From Bill Aten of Computerizers.
|
||
IBM's version of arpa/nameser.h defaults to the wrong byte
|
||
order. Tweak it to work properly. Based on fixes
|
||
from Fletcher Mattox of UTexas and Betty Lee of
|
||
Stanford University.
|
||
CONFIG: add confHOSTS_FILE m4 variable to set HostsFile option.
|
||
Deficiency pointed out by Bryan Costales of ICSI.
|
||
|
||
8.7.2/8.7.2 95/11/19
|
||
REALLY fix the backslash escapes in SmtpGreetingMessage,
|
||
OperatorChars, and UnixFromLine options. They were not
|
||
properly repaired in 8.7.1.
|
||
Completely delete the Bcc: header if and only if there are other
|
||
valid recipient headers (To:, Cc: or Apparently-To:, the
|
||
last being a historic botch, of course). If Bcc: is the
|
||
only recipient header in the message, it's value is tossed,
|
||
but the header name is kept. The old behaviour (always keep
|
||
the header name and toss the value) allowed primary recipients
|
||
to see that a Bcc: went to _someone_.
|
||
Include queue id on ``Authentication-Warning: <host>: <user> set
|
||
sender to <addresss> using -f'' syslog messages. Suggested
|
||
by Kari Hurtta.
|
||
If a sequence or switch map lookup entry gets a tempfail but then
|
||
continues on to another map type, but the name is not found,
|
||
return a temporary failure from the sequence or switch map.
|
||
For example, if hosts search ``dns files'' and DNS fails
|
||
with a tempfail, the hosts map will go on and search files,
|
||
but if it fails the whole thing should be a tempfail, not
|
||
a permanent (host unknown) failure, even though that is the
|
||
failure in the hosts.files map. This error caused hard
|
||
bounces when it should have requeued.
|
||
Aliases to files such as /users/bar/foo/inbox, with /users/bar/foo
|
||
owned by bar mode 700 and inbox being setuid bar stopped
|
||
working properly due to excessive paranoia. Pointed out by
|
||
John Hawkinson of Panix.
|
||
An SMTP RCPT command referencing a host that gave a nameserver
|
||
timeout would return a 451 command (8.6 accepted it and
|
||
queued it locally). Revert to the 8.6 behaviour in order
|
||
to simplify queue management for clustered systems. Suggested
|
||
by Gregory Neil Shapiro of WPI. The same problem could break
|
||
MH, which assumes that the SMTP session will succeed (tsk, tsk
|
||
-- mail gets lost!); this was pointed out by Stuart Pook of
|
||
Infobiogen.
|
||
Fix possible buffer overflow in munchstring(). This was not a security
|
||
problem because you couldn't specify any argument to this
|
||
without first giving up root privileges, but it is still a
|
||
good idea to avoid future problems. Problem noted by John
|
||
Hawkinson and Sam Hartman of MIT.
|
||
``452 Out of disk space for temp file'' messages weren't being
|
||
printed. Fix from David Perlin of Nanosoft.
|
||
Don't advertise the ESMTP DSN extension if the SendMIMEErrors option
|
||
is not set, since this is required to get the actual DSNs
|
||
created. Problem pointed out by John Gardiner Myers of CMU.
|
||
Log permission problems that cause .forward and :include: files to
|
||
be untrusted or ignored on log level 12 and higher. Suggestted
|
||
by Randy Martin of Clemson University.
|
||
Allow user ids in U= clauses of M lines to have hyphens and
|
||
underscores.
|
||
Fix overcounting of recipients -- only happened when sending to an
|
||
alias. Pointed out by Mark Andrews of SGI and Jack Woolley
|
||
of Systems and Computer Technology Corporation.
|
||
If a message is sent to an address that fails, the error message that
|
||
is returned could show some extraneous "success" information
|
||
included even if the user did not request success notification,
|
||
which was confusing. Pointed out by Allan Johannesen of WPI.
|
||
Config files that had no AliasFile definition were defaulting to
|
||
using /etc/aliases; this caused problems with nullclient
|
||
configurations. Change it back to the 8.6 semantics of
|
||
having no local alias file unless it is declared. Problem
|
||
noted by Charles Karney of Princeton University.
|
||
Fix compile problem if NOTUNIX is defined. Pointed out by Bryan
|
||
Costales of ICSI.
|
||
Map lookups of class "userdb" maps were always case sensitive; they
|
||
should be controlled by the -f flag like other maps. Pointed
|
||
out by Bjart Kvarme <bjart.kvarme@usit.uio.no>.
|
||
Fix problem that caused some addresses to be passed through ruleset 5
|
||
even when they were tagged as "sticky" by prefixing the
|
||
address with an "@". Patch from Thomas Dwyer III of Michigan
|
||
Technological University.
|
||
When converting a message to Quoted-Printable, prevent any lines with
|
||
dots alone on a line by themselves. This is because of the
|
||
preponderence of broken mailers that still get this wrong.
|
||
Code contributed by Per Hedeland of Ericsson.
|
||
Fix F{macro}/file construct -- it previously did nothing. Pointed
|
||
out by Bjart Kvarme of USIT/UiO (Norway).
|
||
Announce whether a cached connection is SMTP or ESMTP (in -v mode).
|
||
Requested by Allan Johannesen.
|
||
Delete check for text format of alias files -- it should be legal
|
||
to have the database format of the alias files without the
|
||
text version. Problem pointed out by Joe Rhett of Navigist,
|
||
Inc.
|
||
If "Ot" was specified with no value, the TZ variable was not properly
|
||
imported from the environment. Pointed out by Frank Crawford
|
||
<frank@ansto.gov.au>.
|
||
Some architectures core dumped on "program" maps that didn't have
|
||
extra arguments. Patch from Booker C. Bense of Stanford
|
||
University.
|
||
Queue run processes would re-spawn daemons when given a SIGHUP; only
|
||
the parent should do this. Fix from Brian Coan of the
|
||
Association for Progressive Communications.
|
||
If MinQueueAge was set and a message was considered but not run
|
||
during a queue run and the Timeout.queuereturn interval was
|
||
reached, a "timed out" error message would be returned that
|
||
didn't include the failed address (and claimed to be a warning
|
||
even though it was fatal). The fix is to not return such
|
||
messages until they are actually tried, i.e., in the next
|
||
MinQueueAge interval. Problem noted by Rein Tollevik of
|
||
SINTEF RUNIT, Oslo.
|
||
Add HES_GETMAILHOST compile flag to support MIT Hesiod distributions
|
||
that have the hes_getmailhost() routine. DEC Hesiod
|
||
distributions do not have this routine. Based on a patch
|
||
from Betty Lee of Stanford University.
|
||
Extensive cleanups to map open code to handle a locking race condition
|
||
in ndbm, hash, and btree format database files on some (most
|
||
non-4.4-BSD based) OS architectures. This should solve the
|
||
occassional "user unknown" problem during alias rebuilds that
|
||
has plagued me for quite some time. Based on a patch from
|
||
Thomas Dwyer III of Michigan Technological University.
|
||
PORTABILITY FIXES:
|
||
Solaris: Change location of newaliases and mailq from
|
||
/usr/ucb to /usr/bin to match Sun settings. From
|
||
James B. Davis of TCI.
|
||
DomainOS: Makefile.DomainOS doesn't require -ldbm. From
|
||
Don Lewis of Silicon Systems.
|
||
HP-UX 10: rename Makefile.HP-UX.10 => Makefile.HP-UX.10.x
|
||
so that the makesendmail script will find it. Pointed
|
||
out by Richard Allen of the University of Iceland.
|
||
Also, use -Aa -D_HPUX_SOURCE instead of -Ae, which
|
||
isn't supported on all compilers.
|
||
UXPDS: compilation fixes from Diego R. Lopez.
|
||
CONFIG: FAX mailer wasn't setting .FAX as a pseudo-domain unless
|
||
you also had a FAX_RELAY. From Thomas.Tornblom@Hax.SE.
|
||
CONFIG: Minor glitch in S21 -- attachment of local domain name
|
||
didn't have trailing dot. From Jim Hickstein of Teradyne.
|
||
CONFIG: Fix best_mx_is_local feature to allow nested addresses such as
|
||
user%host@thishost. From Claude Scarpelli of Infobiogen
|
||
(France).
|
||
CONFIG: OSTYPE(hpux10) failed to define the location of the help file.
|
||
Pointed out by Hannu Martikka of Nokia Telecommunications.
|
||
CONFIG: Diagnose some inappropriate ordering in configuration files,
|
||
such as FEATURE(smrsh) listed after MAILER(local). Based on
|
||
a bug report submitted by Paul Hoffman of Proper Publishing.
|
||
CONFIG: Make OSTYPE files consistently not override settings that
|
||
have already been set. Previously it worked differently
|
||
for different files.
|
||
CONFIG: Change relay mailer to do masquerading like 8.6 did. My take
|
||
is that this is wrong, but the change was causing problems
|
||
for some people. From Per Hedeland of Ericsson.
|
||
CONTRIB: bitdomain.c patch from John Gardiner Myers <jgm+@CMU.EDU>;
|
||
portability changes for Posix environments (no functional
|
||
changes).
|
||
|
||
8.7.1/8.7.1 95/10/01
|
||
Old macros that have become options (SmtpGreetingMessage,
|
||
OperatorChars, and UnixFromLine) didn't allow backslash
|
||
escapes in the options, where they previously had. Bug
|
||
pointed out by John Hawkinson of MIT.
|
||
Fix strange case of an executable called by a program map that
|
||
returns a value but also a non-zero exit status; this
|
||
would give contradictory results in the higher level; in
|
||
particular, the default clause in the map lookup would be
|
||
ignored. Change to ignore the value if the program returns
|
||
non-zero exit status. From Tom Moore of AT&T GIS.
|
||
Shorten parameters passed to syslog() in some contexts to avoid a
|
||
bug in many vendors' implementations of that routine. Although
|
||
this isn't really a bug in sendmail per se, and my solution
|
||
has to assume that syslog() has at least a 1K buffer size
|
||
internally (I know some vendors have shortened this
|
||
dramatically -- they're on their own), sendmail is a popular
|
||
target. Also, limit the size of %s arguments in sprintf.
|
||
These both have possible security implications. Solutions
|
||
suggested by Casper Dik of Sun's Network Security Group
|
||
(Holland), Mark Seiden, and others.
|
||
Fix a problem that might cause a non-standard -B (body type)
|
||
parameter to be passed to the next server with undefined
|
||
results. This could have security implications.
|
||
If a filesystem was at > 100% utilization, the freediskspace()
|
||
routine incorrectly returned an error rather than zero.
|
||
Problem noted by G. Paul Ziemba of Alantec.
|
||
Change MX sort order so that local hostnames (those in $=w) always
|
||
sort first within a given preference. This forces the bestmx
|
||
map to always return the local host first, if it is included
|
||
in the list of highest priority MX records. From K. Robert
|
||
Elz.
|
||
Avoid some possible null pointer dereferences. Fixes from Randy
|
||
Martin <WOLF@CLEMSON.EDU>
|
||
When sendmail starts up on systems that have no fully qualified
|
||
domain name (FQDN) anywhere in the first matching host map
|
||
(e.g., /etc/hosts if the hosts service searches "files dns"),
|
||
sendmail would sleep to try to find a FQDN, which it really
|
||
really needs. This has been changed to fall through to the
|
||
next map type if it can't find a FQDN -- i.e., if the hosts
|
||
file doesn't have a FQDN, it will try dns even though the
|
||
short name was found in /etc/hosts. This is probably a crock,
|
||
but many people have hosts files without FQDNs. Remember:
|
||
domain names are your friends.
|
||
Log a high-priority message if you can't find your FQDN during startup.
|
||
Suggested by Simon Barnes of Schlumberger Limited.
|
||
When using Hesiod, initialize it early to improve error reporting.
|
||
Patch from Don Lewis of Silicon Systems, Inc.
|
||
Apparently at least some versions of Linux have a 90 !minute! TCP
|
||
connection timeout in the kernel. Add a new "connect" timeout
|
||
to limit this time. Defaults to zero (use whatever the
|
||
kernel provides). Based on code contributed by J.R. Oldroyd
|
||
of TerraNet.
|
||
Under some circumstances, a failed message would not be properly
|
||
removed from the queue, causing tons of bogus error messages.
|
||
(This fix eliminates the problematic EF_KEEPQUEUE flag.)
|
||
Problem noted by Allan E Johannesen and Gregory Neil Shapiro
|
||
of WPI.
|
||
PORTABILITY FIXES:
|
||
On IRIX 5.x, there was an inconsistency in the setting
|
||
of sendmail.st location. Change the Makefile to
|
||
install it in /var/sendmail.st to match the OSTYPE
|
||
file and SGI standards. From Andre
|
||
<andre@curry.zfe.siemens.de>.
|
||
Support for Fujitsu/ICL UXP/DS (For the DS/90 Series)
|
||
from Diego R. Lopez <drlopez@cica.es>.
|
||
Linux compilation patches from J.R. Oldroyd of TerraNet, Inc.
|
||
LUNA 2 Mach patches from Motonori Nakamura.
|
||
SunOS Makefile was including -ldbm, which is for the old
|
||
dbm library. The ndbm library is part of libc.
|
||
CONFIG: avoid bouncing ``user@host.'' (note trailing dot) with
|
||
``local configuration error'' in nullclient configuration.
|
||
Patch from Gregory Neil Shapiro of WPI.
|
||
CONFIG: don't allow an alias file in nullclient configurations --
|
||
since all addresses are relayed, they give errors during
|
||
rebuild. Suggested by Per Hedeland of Ericsson.
|
||
CONFIG: local mailer on Solaris 2 should always get a -f flag because
|
||
otherwise the F=S causes the From_ line to imply that root is
|
||
the sender. Problem pointed out by Claude Scarpelli of
|
||
Infobiogen (France).
|
||
NEW FILES:
|
||
cf/feature/use_ct_file.m4 (omitted from 8.7 by mistake)
|
||
src/Makefiles/Makefile.KSR (omitted from 8.7 by mistake)
|
||
src/Makefiles/Makefile.UXPDS
|
||
|
||
8.7/8.7 95/09/16
|
||
Fix a problem that could cause sendmail to run out of file
|
||
descriptors due to a trashed data structure after a
|
||
vfork. Fix from Brian Coan of the Institute for
|
||
Global Communications.
|
||
Change the VRFY response if you have disabled VRFY -- some
|
||
people seemed to think that it was too rude.
|
||
Avoid reference to uninitialized file descriptor if HASFLOCK
|
||
was not defined. This was used "safely" in the sense
|
||
that it only did a stat, but it would have set the
|
||
map modification time improperly. Problem pointed out
|
||
by Roy Mongiovi of Georgia Tech.
|
||
Clean up the Subject: line on warning messages and return
|
||
receipts so that they don't say "Returned mail:"; this
|
||
can be confusing.
|
||
Move ruleset entry/exit debugging from 21.2 to 21.1 -- this is
|
||
useful enough to make it worthwhile printing on "-d".
|
||
Avoid logging alias statistics every time you read the alias
|
||
file on systems with no database method compiled in.
|
||
If you have a name with a trailing dot, and you try looking it
|
||
up using gethostbyname without the dot (for /etc/hosts
|
||
compatibility), be sure to turn off RES_DEFNAMES and
|
||
RES_DNSRCH to avoid finding the wrong name accidently.
|
||
Problem noted by Charles Amos of the University of
|
||
Maryland.
|
||
Don't do timeouts in collect if you are not running SMTP.
|
||
There is nothing that says you can't have a long
|
||
running program piped into sendmail (possibly via
|
||
/bin/mail, which just execs sendmail). Problem reported
|
||
by Don "Truck" Lewis of Silicon Systems.
|
||
Try gethostbyname() even if the DNS lookup fails iff option I
|
||
is not set. This allows you to have hosts listed in
|
||
NIS or /etc/hosts that are not known to DNS. It's normally
|
||
a bad idea, but can be useful on firewall machines. This
|
||
should really be broken out on a separate flag, I suppose.
|
||
Avoid compile warnings against BIND 4.9.3, which uses function
|
||
prototypes. From Don Lewis of Silicon Systems.
|
||
Avoid possible incorrect diagnosis of DNS-related errors caused
|
||
by things like attempts to resolve uucp names using
|
||
$[ ... $] -- the fix is to clear h_errno at appropriate
|
||
times. From Kyle Jones of UUNET.
|
||
SECURITY: avoid denial-of-service attacks possible by destroying
|
||
the alias database file by setting resource limits low.
|
||
This involves adding two new compile-time options:
|
||
HASSETRLIMIT (indicating that setrlimit(2) support is
|
||
available) and HASULIMIT (indicating that ulimit(2) support
|
||
is available -- the Release 3 form is used). The former
|
||
is assumed on BSD-based systems, the latter on System
|
||
V-based systems. Attack noted by Phil Brandenberger of
|
||
Swarthmore University.
|
||
New syntaxes in test (-bt) mode:
|
||
``.Dmvalue'' will define macro "m" to "value".
|
||
``.Ccvalue'' will add "value" to class "c".
|
||
``=Sruleset'' will dump the contents of the indicated
|
||
ruleset.
|
||
``=M'' will display the known mailers.
|
||
``-ddebug-spec'' is equivalent to the command-line
|
||
-d debug flag.
|
||
``$m'' will print the value of macro $m.
|
||
``$=c'' will print the contents of class $=c.
|
||
``/mx host'' returns the MX records for ``host''.
|
||
``/parse address'' will parse address, returning the value of
|
||
crackaddr (essentially, the comment information)
|
||
and the parsed address.
|
||
``/try mailer address'' will rewrite address into the form
|
||
it will have when presented to the indicated mailer.
|
||
``/tryflags flags'' will set flags used by parsing. The
|
||
flags can be `H' for header or `E' for envelope,
|
||
and `S' for sender or `R' for recipient. These
|
||
can be combined, so `HR' sets flags for header
|
||
recipients.
|
||
``/canon hostname'' will try to canonify hostname and
|
||
return the result.
|
||
``/map mapname key'' will look up `key' in the indicated
|
||
`mapname' and return the result.
|
||
Somewhat better handling of UNIX-domain socket addresses -- it
|
||
should show the pathname rather than hex bytes.
|
||
Restore ``-ba'' mode -- this reads a file from stdin and parses
|
||
the header for envelope sender information and uses
|
||
CR-LF as message terminators. It was thought to be
|
||
obsolete (used only for Arpanet NCP protocols), but it
|
||
turns out that the UK ``Grey Book'' protocols require
|
||
that functionality.
|
||
Fix a fix in previous release -- if gethostname and gethostbyname
|
||
return a name without dots, and if an attempt to canonify
|
||
that name fails, wait one minute and try again. This can
|
||
result in an extra 60 second delay on startup if your system
|
||
hostname (as returned by hostname(1)) has no dot and no names
|
||
listed in /etc/hosts or your NIS map have a dot.
|
||
Check for proper domain name on HELO and EHLO commands per
|
||
RFC 1123 section 5.2.5. Problem noted by Thomas Dwyer III
|
||
of Michigan Technological University.
|
||
Relax chownsafe rules slightly -- old version said that if you
|
||
can't tell if _POSIX_CHOWN_RESTRICTED is set (that is,
|
||
if fpathconf returned EINVAL or ENOSYS), assume that
|
||
chown is not safe. The new version falls back to whether
|
||
you are on a BSD system or not. This is important for
|
||
SunOS, which apparently always returns one of those
|
||
error codes. This impacts whether you can mail to files
|
||
or not.
|
||
Syntax errors such as unbalanced parentheses in the configuration
|
||
file could be omitted if you had "Oem" prior to the
|
||
syntax error in the config file. Change to always print
|
||
the error message. It was especially weird because it
|
||
would cause a "warning" message to be sent to the Postmaster
|
||
for every message sent (but with no transcript). Problem
|
||
noted by Gregory Paris of Motorola.
|
||
Rewrite collect and putbody to handle full 8-bit data, including
|
||
zero bytes. These changes are internally extensive, but
|
||
should have minimal impact on external function.
|
||
Allow full words for option names -- if the option letter is
|
||
(apparently) a space, then take the word following -- e.g.,
|
||
O MatchGECOS=TRUE
|
||
The full list of old and new names is as follows:
|
||
7 SevenBitInput
|
||
8 EightBitMode
|
||
A AliasFile
|
||
a AliasWait
|
||
B BlankSub
|
||
b MinFreeBlocks/MaxMessageSize
|
||
C CheckpointInterval
|
||
c HoldExpensive
|
||
D AutoRebuildAliases
|
||
d DeliveryMode
|
||
E ErrorHeader
|
||
e ErrorMode
|
||
f SaveFromLine
|
||
F TempFileMode
|
||
G MatchGECOS
|
||
H HelpFile
|
||
h MaxHopCount
|
||
i IgnoreDots
|
||
I ResolverOptions
|
||
J ForwardPath
|
||
j SendMimeErrors
|
||
k ConnectionCacheSize
|
||
K ConnectionCacheTimeout
|
||
L LogLevel
|
||
l UseErrorsTo
|
||
m MeToo
|
||
n CheckAliases
|
||
O DaemonPortOptions
|
||
o OldStyleHeaders
|
||
P PostmasterCopy
|
||
p PrivacyOptions
|
||
Q QueueDirectory
|
||
q QueueFactor
|
||
R DontPruneRoutes
|
||
r, T Timeout
|
||
S StatusFile
|
||
s SuperSafe
|
||
t TimeZoneSpec
|
||
u DefaultUser
|
||
U UserDatabaseSpec
|
||
V FallbackMXhost
|
||
v Verbose
|
||
w TryNullMXList
|
||
x QueueLA
|
||
X RefuseLA
|
||
Y ForkEachJob
|
||
y RecipientFactor
|
||
z ClassFactor
|
||
Z RetryFactor
|
||
The old macros that passed information into sendmail have
|
||
been changed to options; those correspondences are:
|
||
$e SmtpGreetingMessage
|
||
$l UnixFromLine
|
||
$o OperatorChars
|
||
$q (deleted -- not necessary)
|
||
To avoid possible problems with an older sendmail,
|
||
configuration level 6 is accepted by this version of
|
||
sendmail; any config file using the new names should
|
||
specify "V6" in the configuration.
|
||
Change address parsing to properly note that a phrase before a
|
||
colon and a trailing semicolon are essentially the same
|
||
as text outside of angle brackets (i.e., sendmail should
|
||
treat them as comments). This is to handle the
|
||
``group name: addr1, addr2, ..., addrN;'' syntax (it will
|
||
assume that ``group name:'' is a comment on the first
|
||
address and the ``;'' is a comment on the last address).
|
||
This requires config file support to get right. It does
|
||
understand that :: is NOT this syntax, and can be turned
|
||
off completely by setting the ColonOkInAddresses option.
|
||
Level 6 config files added with new mailer flags:
|
||
A Addresses are aliasable.
|
||
i Do udb rewriting on envelope as well as header
|
||
sender lines. Applies to the from address mailer
|
||
flags rather than the recipient mailer flags.
|
||
j Do udb rewriting on header recipient addresses.
|
||
Applies to the sender mailer flags rather than the
|
||
recipient mailer flags.
|
||
k Disable check for loops when doing HELO command.
|
||
o Always run as the mail recipient, even on local
|
||
delivery.
|
||
w Check for an /etc/passwd entry for this user.
|
||
5 Pass addresses through ruleset 5.
|
||
: Check for :include: on this address.
|
||
| Check for |program on this address.
|
||
/ Check for /file on this address.
|
||
@ Look up sender header addresses in the user
|
||
database. Applies to the mailer flags for the
|
||
mailer corresponding to the envelope sender
|
||
address, rather than to recipient mailer flags.
|
||
Pre-level 6 configuration files set A, w, 5, :, |, /, and @
|
||
on the "local" mailer, the o flag on the "prog" and "*file*"
|
||
mailers, and the ColonOkInAddresses option.
|
||
Eight-to-seven bit MIME conversions. This borrows ideas from
|
||
John Beck of Hewlett-Packard, who generously contributed
|
||
their implementation to me, which I then didn't use (see
|
||
mime.c for an explanation of why). This adds the
|
||
EightBitMode option (a.k.a. `8') and an F=8 mailer flag
|
||
to control handling of 8-bit data. These have to cope with
|
||
two types of 8-bit data: unlabelled 8-bit data (that is,
|
||
8-bit data that is entered without declaring it as 8-bit
|
||
MIME -- technically this is illegal according to the
|
||
specs) and labelled 8-bit data (that is, it was declared
|
||
as 8BITMIME in the ESMTP session or by using the
|
||
-B8BITMIME command line flag). If the F=8 mailer flag is
|
||
set then 8-bit data is sent to non-8BITMIME machines
|
||
instead of converting to 7 bit (essentially using
|
||
just-send-8 semantics). The values for EightBitMode are:
|
||
m convert unlabelled 8-bit input to 8BITMIME, and do
|
||
any necessary conversion of 8BITMIME to 7BIT
|
||
(essentially, the full MIME option).
|
||
p pass unlabelled 8-bit input, but convert labelled
|
||
8BITMIME input to 7BIT as required (default).
|
||
s strict adherence: reject unlabelled 8-bit input,
|
||
convert 8BITMIME to 7BIT as required. The F=8
|
||
flag is ignored.
|
||
Unlabelled 8-bit data is rejected in mode `s' regardless of
|
||
the setting of F=8.
|
||
Add new internal class 'n', which is the set of MIME Content-Types
|
||
which can not be 8 to 7 bit encoded because of other
|
||
considerations. Types "multipart/*" and "message/*" are
|
||
never directly encoded (although their components can be).
|
||
Add new internal class 's', which is the set of subtypes of the
|
||
MIME message/* content type that can be treated as though
|
||
they are an RFC822 message. It is predefined to have
|
||
"rfc822". Suggested By Kari Hurtta.
|
||
Add new internal class 'e'. This is the set of MIME
|
||
Content-Transfer-Encodings that can be converted to
|
||
a seven bit format (Quoted-Printable or Base64). It is
|
||
preinitialized to contain "7bit", "8bit", and "binary".
|
||
Add C=charset mailer parameter and the the DefaultCharSet option (no
|
||
short name) to set the default character set to use in the
|
||
Content-Type: header when doing encoding of an 8-bit message
|
||
which isn't marked as MIME into MIME format. If the C=
|
||
parameter is set on the Envelope From address, use that as
|
||
the default encoding; else use the DefaultCharSet option.
|
||
If neither is set, it defaults to "unknown-8bit" as
|
||
suggested by RFC 1428 section 3.
|
||
Allow ``U=user:group'' field in mailer definition to set a default
|
||
user and group that a mailer will be executed as. This
|
||
overrides the 'u' and 'g' options, and if the `F=S' flag is
|
||
also set, it is the uid/gid that will always be used (that
|
||
is, the controlling address is ignored). The values may be
|
||
numeric or symbolic; if only a symbolic user is given (no
|
||
group) that user's default group in the passwd file is used
|
||
as the group. Based on code donated by Chip Rosenthal of
|
||
Unicom.
|
||
Allow `u' option to also accept user:group as a value, in the same
|
||
fashion as the U= mailer option.
|
||
Add the symbolic time zone name in the Arpanet format dates (as
|
||
a comment). This adds a new compile-time configuration
|
||
flag: TZ_TYPE can be set to TZ_TM_NAME (use the value
|
||
of (struct tm *)->tm_name), TZ_TM_ZONE (use the value
|
||
of (struct tm *)->tm_zone), TZ_TZNAME (use extern char
|
||
*tzname[(struct tm *)->tm_isdst]), TZ_TIMEZONE (use
|
||
timezone()), or TZ_NONE (don't include the comment). Code
|
||
from Chip Rosenthal.
|
||
The "Timeout" option (formerly "r") is extended to allow suboptions.
|
||
For example,
|
||
O Timeout.helo = 2m
|
||
There are also two new suboptions "queuereturn" and
|
||
"queuewarn"; these subsume the old T option. Thus, to
|
||
set them both the preferred new syntax is
|
||
O Timeout.queuereturn = 5d
|
||
O Timeout.queuewarn = 4h
|
||
Sort queue by host name instead of by message priority if the
|
||
QueueSortOrder option (no short name) is set is set to
|
||
``host''. This makes better use of the connection cache,
|
||
but may delay more ``interactive'' messages behind large
|
||
backlogs under some circumstances. This is probably a
|
||
good option if you have high speed links or don't do lots
|
||
of ``batch'' messages, but less good if you are using
|
||
something like PPP on a 14.4 modem. Based on code
|
||
contributed by Roy Mongiovi of Georgia Tech (my main
|
||
contribution was to make it configurable).
|
||
Save i-number of df file in qf file to simplify rebuilding of queue
|
||
after disasterous disk crash. Suggested by Kyle Jones of
|
||
UUNET; closely based on code from KJS DECWRL code written
|
||
by Paul Vixie. NOTA BENE: The qf files produced by 8.7
|
||
are NOT back compatible with 8.6 -- that is, you can convert
|
||
from 8.6 to 8.7, but not the other direction.
|
||
Add ``F=d'' mailer flag to disable all use of angle brackets in
|
||
route-addrs in envelopes; this is because in some cases
|
||
they can be sent to the shell, which interprets them as
|
||
I/O redirection.
|
||
Don't include error file (option E) with return-receipts; this
|
||
can be confusing.
|
||
Don't send "Warning: cannot send" messages to owner-* or
|
||
*-request addresses. Suggested by Christophe Wolfhugel
|
||
of the Institut Pasteur, Paris.
|
||
Allow -O command line flag to set long form options.
|
||
Add "MinQueueAge" option to set the minimum time between attempts
|
||
to run the queue. For example, if the queue interval
|
||
(-q value) is five minutes, but the minimum queue age
|
||
is fifteen minutes, jobs won't be tried more often than
|
||
once every fifteen minutes. This can be used to give
|
||
you more responsiveness if your delivery mode is set to
|
||
queue-only.
|
||
Allow "fileopen" timeout (default: 60 seconds) for opening
|
||
:include: and .forward files.
|
||
Add "-k", "-v", and "-z" flags to map definitions; these set the
|
||
key field name, the value field name, and the field
|
||
delimiter. The field delimiter can be a single character
|
||
or the sequence "\t" or "\n" for tab or newline.
|
||
These are for use by NIS+ and similar access methods.
|
||
Change maps to always strip quotes before lookups; the -q flag
|
||
turns off this behaviour. Suggested by Motonori Nakamura.
|
||
Add "nisplus" map class. Takes -k and -v flags to choose the
|
||
key and value field names respectively. Code donated by
|
||
Sun Microsystems.
|
||
Add "hesiod" map class. The "file name" is used as the
|
||
"HesiodNameType" parameter to hes_resolve(3). Returns the
|
||
first value found for the match. Code donated by Scott
|
||
Hutton of Indiana University.
|
||
Add "netinfo" (NeXT NetInfo) map class. Maps can have a -k flag to
|
||
specify the name of the property that is searched as the
|
||
key and a -v flag to specify the name of the property that
|
||
is returned as the value (defaults to "members"). The
|
||
default map is "/aliases". Some code based on code
|
||
contributed by Robert La Ferla of Hot Software.
|
||
Add "text" map class. This does slow, linear searches through
|
||
text files. The -z flag specifies a column delimiter
|
||
(defaults to any sequence of white space), the -k flag
|
||
sets the key column number, and the -v flag sets the
|
||
value column number. Lines beginning with `#' are treated
|
||
as comments.
|
||
Add "program" map class to execute arbitrary programs. The search
|
||
key is presented as the last argument; the output is one
|
||
line read from the programs standard output. Exit statuses
|
||
are from sysexits.h.
|
||
Add "sequence" map class -- searches maps in sequence until it
|
||
finds a match. For example, the declarations:
|
||
Kmap1 ...
|
||
Kmap2 ...
|
||
Kmapseq sequence map1 map2
|
||
defines a map "mapseq" that first searches map1; if the
|
||
value is found it is returned immediately, otherwise
|
||
map2 is searched and the value returned.
|
||
Add "switch" map class. This is much like "sequence" except that
|
||
the ordering is fetched from an external file, usually
|
||
the system service switch. The parameter is the name of
|
||
the service to switch on, and the maps that it will use
|
||
are the name of the switch map followed by ".service_type".
|
||
For example, if the declaration of the map is
|
||
Ksample switch hosts
|
||
and the system service switch specifies that hosts are
|
||
looked up using dns and nis in that order, then this is
|
||
equivalent to
|
||
Ksample sequence sample.dns sample.nis
|
||
The subordinate maps (sample.*) must already be defined.
|
||
Add "user" map class -- looks up users using getpwnam. Takes a
|
||
"-v field" flag on the definition that tells what passwd
|
||
entry to return -- legal values are name, passwd, uid, gid,
|
||
gecos, dir, and shell. Generally expected to be used with
|
||
the -m (matchonly) flag.
|
||
Add "bestmx" map class -- returns the best MX value for the host
|
||
listed as the value. If there are several "best" MX records
|
||
for this host, one will be chosen at random.
|
||
Add "userdb" map class -- looks up entries in the user database.
|
||
The "file name" is actually the tag that will be used,
|
||
typically "mailname". If there are multiple entries
|
||
matching the name, the one chosen is undefined.
|
||
Add multiple queue timeouts (both return and warning). These are
|
||
set by the Precedence: or Priority: header fields to one of
|
||
three values. If a Priority: is set and has value "normal",
|
||
"urgent", or "non-urgent" the corresponding timeouts are
|
||
used. If no priority is set, the Precedence: is consulted;
|
||
if negative, non-urgent timeouts are used; if greater than
|
||
zero, urgent timeouts are used. Otherwise, normal timeouts
|
||
are used. The timeouts are set by setting the six timeouts
|
||
queue{warn,return}.{urgent,normal,non-urgent}.
|
||
Fix problem when a mail address is resolved to a $#error mailer
|
||
with a temporary failure indication; it works in SMTP,
|
||
but when delivering locally the mail is silently discarded.
|
||
This patch, from Kyle Jones of UUNET, bounces it instead
|
||
of queueing it (queueing is very hard).
|
||
When using /etc/hosts or NIS-style lookups, don't assume that
|
||
the first name in the list is the best one -- instead,
|
||
search for the first one with a dot. For example, if
|
||
an /etc/hosts entry reads
|
||
128.32.149.68 mammoth mammoth.CS.Berkeley.EDU
|
||
this change will use the second name as the canonical
|
||
machine name instead of the initial, unqualified name.
|
||
Change dequote map to replace spaces in quoted text with a value
|
||
indicated by the -s flag on the dequote map definition.
|
||
For example, ``Mdequote dequote -s_'' will change
|
||
"Foo Bar" into an unquoted Foo_Bar instead of leaving it
|
||
quoted (because of the space character). Suggested by Dan
|
||
Oscarsson for use in X.400 addresses.
|
||
Implement long macro names as ${name}; long class names can
|
||
be similarly referenced as $={name} and $~{name}.
|
||
Definitions are (e.g.) ``D{name}value''. Names that have
|
||
a leading lower case letter or punctuation characters are
|
||
reserved for internal use by sendmail; i.e., config files
|
||
should use names that begin with a capital letter. Based
|
||
on code contributed by Dan Oscarsson.
|
||
Fix core dump if getgrgid returns a null group list (as opposed
|
||
to an empty group list, that is, a pointer to a list
|
||
with no members). Fix from Andrew Chang of Sun Microsystems.
|
||
Fix possible core dump if malloc fails -- if the malloc in xalloc
|
||
failed, it called syserr which called newstr which called
|
||
xalloc.... The newstr is now avoided for "panic" messages.
|
||
Reported by Stuart Kemp of James Cook University.
|
||
Improve connection cache timeouts; previously, they were not even
|
||
checked if you were delivering to anything other than an
|
||
IPC-connected host, so a series of (say) local mail
|
||
deliveries could cause cached connections to be open
|
||
much longer than the specified timeout.
|
||
If an incoming message exceeds the maximum message size, stop
|
||
writing the incoming bytes to the queue data file, since
|
||
this can fill your mqueue partition -- this is a possible
|
||
denial-of-service attack.
|
||
Don't reject all numeric local user names unless HESIOD is
|
||
defined. It turns out that Posix allows all-numeric
|
||
user names. Fix from Tony Sanders of BSDI.
|
||
Add service switch support. If the local OS has a service
|
||
switch (e.g., /etc/nsswitch.conf on Solaris or /etc/svc.conf
|
||
on DEC systems) that will be used; otherwise, it falls back
|
||
to using a local mechanism based on the ServiceSwitchFile
|
||
option (default: /etc/service.switch). For example, if the
|
||
service switch lists "files" and "nis" for the aliases
|
||
service, that will be the default lookup order. the "files"
|
||
("local" on DEC) service type expands to any alias files
|
||
you listed in the configuration file, even if they aren't
|
||
actually file lookups.
|
||
Option I (NameServerOptions) no longer sets the "UseNameServer"
|
||
variable which tells whether or not DNS should be considered
|
||
canonical. This is now determined based on whether or not
|
||
"dns" is in the service list for "hosts".
|
||
Add preliminary support for the ESMTP "DSN" extension (Delivery
|
||
Status Notifications). DSN notifications override
|
||
Return-Receipt-To: headers, which are bogus anyhow --
|
||
support for them has been removed.
|
||
Add T=mts-name-type/address-type/diagnostic-type keyletter to mailer
|
||
definitions to define the types used in DSN returns for
|
||
MTA names, addresses, and diagnostics respectively.
|
||
Extend heuristic to force running in ESMTP mode to look for the
|
||
five-character string "ESMTP" anywhere in the 220 greeting
|
||
message (not just the second line). This is to provide
|
||
better compatibility with other ESMTP servers.
|
||
Print sequence number of job when running the queue so you can
|
||
easily see how much progress you have made. Suggested
|
||
by Peter Wemm of DIALix.
|
||
Map newlines to spaces in logged message-ids; some versions of
|
||
syslog truncate the rest of the line after newlines.
|
||
Suggested by Fletcher Mattox of U. Texas.
|
||
Move up forking for job runs so that if a message is split into
|
||
multiple envelopes you don't get "fork storms" -- this
|
||
also improves the connection cache utilization.
|
||
Accept "<<>>", "<<<>>>", and so forth as equivalent to "<>" for
|
||
the purposes of refusing to send error returns. Suggested
|
||
by Motonori Nakamura of Ritsumeikan University.
|
||
Relax rules on when a file can be written when referenced from
|
||
the aliases file: use the default uid/gid instead of the
|
||
real uid/gid. This allows you to create a file owned by
|
||
and writable only by the default uid/gid that will work
|
||
all the time (without having the setuid bit set). Change
|
||
suggested by Shau-Ping Lo and Andrew Cheng of Sun
|
||
Microsystems.
|
||
Add "DialDelay" option (no short name) to provide an "extra"
|
||
delay for dial on demand systems. If this is non-zero
|
||
and a connect fails, sendmail will wait this long and
|
||
then try again. If it takes longer than the kernel
|
||
timeout interval to establish the connection, this
|
||
option can give the network software time to establish
|
||
the link. The default units are seconds.
|
||
Move logging of sender information to be as early as possible;
|
||
previously, it could be delayed a while for SMTP mail
|
||
sent to aliases. Suggested by Brad Knowles of the
|
||
Defense Information Systems Agency.
|
||
Call res_init() before setting RES_DEBUG; this is required by
|
||
BIND 4.9.3, or so I'm told. From Douglas Anderson of
|
||
the National Computer Security Center.
|
||
Add xdelay= field in logs -- this is a transaction delay, telling
|
||
you how long it took to deliver to this address on the
|
||
last try. It is intended to be used for sorting mailing
|
||
lists to favor "quick" addresses. Provided for use by
|
||
the mailprio scripts (see below).
|
||
If a map cannot be opened, and that map is non-optional, and
|
||
an address requires that map for resolution, queue the
|
||
map instead of bouncing it. This involves creating a
|
||
pseudo-class of maps called "bogus-map" -- if a required
|
||
map cannot be opened, the class is changed to bogus-map;
|
||
all queries against bogus-map return "tempfail". The
|
||
bogus-map class is not directly accessible. A sample
|
||
implementation was donated by Jem Taylor of Glasgow
|
||
University Computing Service.
|
||
Fix a possible core dump when mailing to a program that talks
|
||
SMTP on its standard input. Fix from Keith Moore of
|
||
the University of Kentucky.
|
||
Make it possible to resolve filenames to $#local $: @ /filename;
|
||
previously, the "@" would cause it to not be recognized
|
||
as a file. Problem noted by Brian Hill of U.C. Davis.
|
||
Accept a -1 signal to re-exec the daemon. This only works if
|
||
argv[0] is a full path to sendmail.
|
||
Fix bug in "addr=..." field in O option on little-endian machines
|
||
-- the network number wasn't being converted to network
|
||
byte order. Patch from Kurt Lidl of Pix Technologies
|
||
Corporation.
|
||
Pre-initialize the resolver early on; this is to avoid a bug with
|
||
BIND 4.9.3 that can cause the _res.retry field to get
|
||
reset to zero, causing all name server lookups to time
|
||
out. Fix from Matt Day of Artisoft.
|
||
Restore T line (trusted users) in config file -- but instead of
|
||
locking out the -f flag, they just tell whether or not
|
||
an X-Authentication-Warning: will be added. This really
|
||
just creates new entries in class 't', so "Ft/file/name"
|
||
can be used to read trusted user names from a file.
|
||
Trusted users are also allowed to execute programs even
|
||
if they have a shell that isn't in /etc/shells.
|
||
Improve NEWDB alias file rebuilding so it will create them
|
||
properly if they do not already exist. This had been
|
||
a MAYBENEXTRELEASE feature in 8.6.9.
|
||
Check for @:@ entry in NIS maps before starting up to avoid
|
||
(but not prevent, sigh) race conditions. This ought to
|
||
be handled properly in ypserv, but isn't. Suggested by
|
||
Michael Beirne of Motorola.
|
||
Refuse connections if there isn't enough space on the filesystem
|
||
holding the queue. Contributed by Robert Dana of Wolf
|
||
Communications.
|
||
Skip checking for directory permissions in the path to a file
|
||
when checking for file permissions iff setreuid()
|
||
succeeded -- it is unnecessary in that case. This avoids
|
||
significant performance problems when looking for .forward
|
||
files. Based on a suggestion by Win Bent of USC.
|
||
Allow symbolic ruleset names. Syntax can be "Sname" to get an
|
||
arbitrary ruleset number assigned or "Sname = integer"
|
||
to assign a specific ruleset number. Reference is
|
||
$>name_or_number. Names can be composed of alphas, digits,
|
||
underscore, or hyphen (first character must be non-numeric).
|
||
Allow -o flag on AliasFile lines to make the alias file optional.
|
||
From Bryan Costales of ICSI.
|
||
Add NoRecipientAction option to handle the case where there is
|
||
no legal recipient header in the message. It can take
|
||
on values:
|
||
None Leave the message as is. The
|
||
message will be passed on even
|
||
though it is in technically
|
||
illegal syntax.
|
||
Add-To Add a To: header with any
|
||
recipients that it can find from
|
||
the envelope. This risks exposing
|
||
Bcc: recipients.
|
||
Add-Apparently-To Add an Apparently-To: header. This
|
||
has almost no redeeming social value,
|
||
and is provided only for back
|
||
compatibility.
|
||
Add-To-Undisclosed Add a header reading
|
||
To: undisclosed-recipients:;
|
||
which will have the effect of
|
||
making the message legal without
|
||
exposing Bcc: recipients.
|
||
Add-Bcc To add an empty Bcc: header.
|
||
There is a chance that mailers down
|
||
the line will delete this header,
|
||
which could cause exposure of Bcc:
|
||
recipients.
|
||
The default is NoRecipientAction=None.
|
||
Truncate (rather than delete) Bcc: lines in the header. This
|
||
should prevent later sendmails (at least, those that don't
|
||
themselves delete Bcc:) from considering this message to
|
||
be non-conforming -- although it does imply that non-blind
|
||
recipients can see that a Bcc: was sent, albeit not to whom.
|
||
Add SafeFileEnvironment option. If declared, files named as delivery
|
||
targets must be regular files in addition to the regular
|
||
checks. Also, if the option is non-null then it is used as
|
||
the name of a directory that is used as a chroot(2)
|
||
environment for the delivery; the file names listed in an
|
||
alias or forward should include the name of this root.
|
||
For example, if you run with
|
||
O SafeFileEnvironment=/arch
|
||
then aliases should reference "/arch/rest/of/path". If a
|
||
value is given, sendmail also won't try to save to
|
||
/usr/tmp/dead.letter (instead it just leaves the job in the
|
||
queue as Qfxxxxxx). Inspired by *Hobbit*'s sendmail patch kit.
|
||
Support -A flag for alias files; this will comma concatenate like
|
||
entries. For example, given the aliases:
|
||
list: member1
|
||
list: member2
|
||
and an alias file declared as:
|
||
OAhash:-A /etc/aliases
|
||
the final alias inserted will be "list: member1,member2";
|
||
without -A you will get an error on the second and subsequent
|
||
alias for "list". Contributed by Bryan Costales of ICSI.
|
||
Line-buffer transcript file. Suggested by Liudvikas Bukys.
|
||
Fix a problem that could cause very long addresses to core dump in
|
||
some special circumstances. Problem pointed out by Allan
|
||
Johannesen.
|
||
(Internal change.) Change interface to expand() (macro expansion)
|
||
to be simpler and more consistent.
|
||
Delete check for funny qf file names. This didn't really give
|
||
any extra security and caused some people some problems.
|
||
(If you -really- want this, define PICKY_QF_NAME_CHECK
|
||
at compile time.) Suggested by Kyle Jones of UUNET.
|
||
(Internal change.) Change EF_NORETURN to EF_NO_BODY_RETN and
|
||
merge with DSN code; this is simpler and more consistent.
|
||
This may affect some people who have written their own
|
||
checkcompat() routine.
|
||
(Internal change.) Eliminate `D' line in qf file. The df file
|
||
is now assumed to be the same name as the qf file (with
|
||
the `q' changed to a `d', of course).
|
||
Avoid forking for delivery if all recipient mailers are marked as
|
||
"expensive" -- this can be a major cost on some systems.
|
||
Essentially, this forces sendmail into "queue only" mode
|
||
if all it is going to do is queue anyway.
|
||
Avoid sending a null message in some rather unusual circumstances
|
||
(specifically, the RCPT command returns a temporary
|
||
failure but the connection is lost before the DATA
|
||
command). Fix from Scott Hammond of Secure Computing
|
||
Corporation.
|
||
Change makesendmail to use a somewhat more rational naming scheme:
|
||
Makefiles and obj directories are named $os.$rel.$arch,
|
||
where $os is the operating system (e.g., SunOS), $rel is
|
||
the release number (e.g., 5.3), and $arch is the machine
|
||
architecture (e.g., sun4). Any of these can be omitted,
|
||
and anything after the first dot in a release number can
|
||
be replaced with "x" (e.g., SunOS.4.x.sun4). The previous
|
||
version used $os.$arch.$rel and was rather less general.
|
||
Change makesendmail to do a "make depend" in the target directory
|
||
when it is being created. This involves adding an empty
|
||
"depend:" entry in most Makefiles.
|
||
Ignore IDENT return value if the OSTYPE field returns "OTHER",
|
||
as indicated by RFC 1413. Pointed out by Kari Hurtta
|
||
of the Finnish Meteorological Institute.
|
||
Fix problem that could cause multiple responses to DATA command
|
||
on header syntax errors (e.g., lines beginning with colons).
|
||
Problem noted by Jens Thomassen of the University of Oslo.
|
||
Don't let null bytes in headers cause truncation of the rest of
|
||
the header.
|
||
Log Authentication-Warning:s. Suggested by Motonori Nakamura.
|
||
Increase timeouts on message data puts to allow time for receivers
|
||
to canonify addresses in headers on the fly. This is still
|
||
a rather ugly heuristic. From Motonori Nakamura.
|
||
Add "HasWildcardMX" suboption to ResolverOptions; if set, MX
|
||
records are not used when canonifying names, and when MX
|
||
lookups are done for addressing they must be fully
|
||
qualified. This is useful if you have a wildcard MX record,
|
||
although it may cause other problems. In general, don't use
|
||
wildcard MX records. Patch from Motonori Nakamura.
|
||
Eliminate default two-line SMTP greeting message. Instead of
|
||
adding an extra "ESMTP spoken here" line, the word "ESMTP"
|
||
is added between the first and second word of the first
|
||
line of the greeting message (i.e., immediately after the
|
||
host name). This eliminates the need for the BROKEN_SMTP_PEERS
|
||
compile flag. Old sendmails won't see the ESMTP, but that's
|
||
acceptable because SIZE was the only useful extension that
|
||
old sendmails understand.
|
||
Avoid gethostbyname calls on UNIX domain sockets during SIGUSR1
|
||
invoked state dumps. From Masaharu Onishi.
|
||
Allow on-line comments in .forward and :include: files; they are
|
||
introduced by the string "<LWSP>#@#<LWSP>", where <LWSP>
|
||
is a space or a tab. This is intended for native
|
||
representation of non-ASCII sets such as Japanese, where
|
||
existing encodings would be unreadable or would lose
|
||
data -- for example,
|
||
<motonori@cs.ritsumei.ac.jp> NAKAMURA Motonori
|
||
(romanized/less information)
|
||
<motonori@cs.ritsumei.ac.jp> =?ISO-2022-JP?B?GyRCQ2ZCPBsoQg==?=
|
||
=?ISO-2022-JP?B?GyRCQUdFNRsoQg==?=
|
||
(with MIME encoding, not human readable)
|
||
<motonori@cs.ritsumei.ac.jp> #@# ^[$BCfB<^[(B ^[$BAGE5^[(B
|
||
(native encoding with ISO-2022-JP)
|
||
The last form is human readable in the Japanese environment.
|
||
Based on a fix from (surprise!) Motonori Nakamura.
|
||
Don't make SMTP error returns on MAIL FROM: line be "sticky" for all
|
||
messages to that host; these are most frequently associated
|
||
with addresses rather than the host, with the exception of
|
||
421 (service shutting down). The effect was to cause queues
|
||
to sometimes take an excessive time to flush. Reported by
|
||
Robert Sargent of Southern Geographics Technologies and
|
||
Eric Prestemon of American University.
|
||
Add Nice=N mailer option to set the niceness at which a mailer will
|
||
run. This is actually a relative niceness (that is, an
|
||
increment on the background value).
|
||
Log queue runs that are skipped due to high loads. They are logged
|
||
at LOG_INFO priority iff the log level is > 8. Contributed
|
||
by Bruce Nagel of Data General.
|
||
Allow the error mailer to accept a DSN-style error status code
|
||
instead of an sysexits status code in the host part.
|
||
Anything with a dot will be interpreted as a DSN-style code.
|
||
Add new mailer flag: F=3 will tell translations to Quoted-Printable
|
||
to encode characters that might be munged by an EBCDIC system
|
||
in addition to the set required by RFC 1521. The additional
|
||
characters are !, ", #, $, @, [, \, ], ^, `, {, |, }, and ~.
|
||
(Think of "IBM 360" as the mnemonic for this flag.)
|
||
Change check for mailing to files to look for a pathname of [FILE]
|
||
rather than looking for the mailer named *file*. The mapping
|
||
of leading slashes still goes to the *file* mailer. This
|
||
allows you to implement the *file* mailer as a separate
|
||
program, for example, to insert a Content-Length: header
|
||
or do special security policy. However, note that the usual
|
||
initial checking for the file permissions is still done, and
|
||
the program in question needs to be very careful about how
|
||
it does the file write to avoid security problems.
|
||
Be able to read ~root/.forward even if the path isn't accessible to
|
||
regular users. This is disrecommended because sendmail
|
||
sometimes does not run as root (e.g., when an unsafe option
|
||
is specified on the command line), but should otherwise be
|
||
safe because .forward files must be owned by the user for
|
||
whom mail is being forwarded, and cannot be a symbolic link.
|
||
Suggested by Forrest Aldrich of Wang Laboratories.
|
||
Add new "HostsFile" option that is the pathname to the /etc/hosts
|
||
file. This is used for canonifying hostnames when the
|
||
service type is "files".
|
||
Implement programs on F (read class from file) line. The syntax is
|
||
Fc|/path/to/program to read the output from the program
|
||
into class "c".
|
||
Probe the network interfaces to find alternate names for this
|
||
host. Requires the SIOCGIFCONF ioctl call. Code
|
||
contributed by SunSoft.
|
||
Add "E" configuration line to set or propogate environment
|
||
variables into children. "E<envar>" will propogate
|
||
the named variable from the environment when sendmail
|
||
was invoked into any children it calls; "E<envar>=<value>"
|
||
sets the named variable to the indicated value. Any
|
||
variables not explicitly named will not be in the child
|
||
environment. However, sendmail still forces an
|
||
"AGENT=sendmail" environment variable, in part to enforce
|
||
at least one environment variable, since many programs and
|
||
libraries die horribly if this is not guaranteed.
|
||
Change heuristic for rebuilding both NEWDB and NDBM versions of
|
||
alias databases -- new algorithm looks for the substring
|
||
"/yp/" in the file name. This is more portable and involves
|
||
less overhead. Suggested by Motonori Nakamura.
|
||
Dynamically allocate the queue work list so that you don't lose
|
||
jobs in large queue runs. The old QUEUESIZE compile parameter
|
||
is replaced by QUEUESEGSIZE (the unit of allocation, which
|
||
should not need to be changed) and the MaxQueueRunSize option,
|
||
which is the absolute maximum number of jobs that will ever
|
||
be handled in a single queue run. Based on code contributed
|
||
by Brian Coan of the Institute for Global Communications.
|
||
Log message when a message is dropped because it exceeds the maximum
|
||
message size. Suggested by Leo Bicknell of Virginia Tech.
|
||
Allow trusted users (those on a T line or in $=t) to use -bs without
|
||
an X-Authentication-Warning: added. Suggested by Mark Thomas
|
||
of Mark G. Thomas Consulting.
|
||
Announce state of compile flags on -d0.1 (-d0.10 throws in the
|
||
OS-dependent defines). The old semantic of -d0.1 to not
|
||
run the daemon in background has been moved to -d99.100,
|
||
and the old 52.5 flag (to avoid disconnect() from closing
|
||
all output files) has been moved to 52.100. This makes
|
||
things more consistent (flags below .100 don't change
|
||
semantics) and separates out the backgrounding so that
|
||
it doesn't happen automatically on other unrelated debugging
|
||
flags.
|
||
If -t is used but no addresses are found in the header, give an
|
||
error message rather than just doing nothing. Fix from
|
||
Motonori Nakamura.
|
||
On systems (like SunOS) where the effective gid is not necessarily
|
||
included in the group list returned by getgroups(), the
|
||
`restrictmailq' option could sometimes cause an authorized
|
||
user to not be able to use `mailq'. Fix from Charles Hannum
|
||
of MIT.
|
||
Allow symbolic service names for [IPC] mailers. Suggested by
|
||
Gerry Magennis of Logica International.
|
||
Add DontExpandCnames option to prevent $[ ... $] from expanding CNAMEs
|
||
when running DNS. For example, if the name FTP.Foo.ORG is
|
||
a CNAME for Cruft.Foo.ORG, then when sitting on a machine in
|
||
the Foo.ORG domain a lookup of "FTP" returns "Cruft.Foo.ORG"
|
||
if this option is not set, or "FTP.Foo.ORG" if it is set.
|
||
This is technically illegal under RFC 822 and 1123, but the
|
||
IETF is moving toward legalizing it. Note that turning on
|
||
this option is not sufficient to guarantee that a downstream
|
||
neighbor won't rewrite the address for you.
|
||
Add "-m" flag to makesendmail script -- this tells you what object
|
||
directory and Makefile it will use, but doesn't actually do
|
||
the make.
|
||
Do some additional checking on the contents of the qf file to try
|
||
to detect attacks against the qf file. In particular,
|
||
abort on any line beginning "From ", and add an "end of
|
||
file" line -- any data after that line is prohibited.
|
||
Always use /etc/sendmail.cf, regardless of the arbitrary vendor
|
||
choices. This can be overridden in the Makefile by using
|
||
either -DUSE_VENDOR_CF_PATH to get the vendor location
|
||
(to the extent that we know it) or by defining
|
||
_PATH_SENDMAILCF (which is a "hard override"). This allows
|
||
sendmail 8 to have more consistent installation instructions.
|
||
Allow macros on `K' line in config file. Suggested by Andrew Chang
|
||
of Sun Microsystems.
|
||
Improved symbol table hash function from Eric Wassenaar. This one
|
||
is at least 50% faster.
|
||
Fix problem that didn't notice that timeout on file open was a
|
||
transient error. Fix from Larry Parmelee of Cornell
|
||
University.
|
||
Allow comments (lines beginning with a `#') in files read for
|
||
classes. Suggested by Motonori Nakamura.
|
||
Make SIGINT (usually ^C) in test mode return to the prompt instead
|
||
of dropping out entirely. This makes testing some of the
|
||
name server lookups easier to deal with when there are
|
||
hung servers. From Motonori Nakamura.
|
||
Add new ${opMode} macro that is set to the current operation mode
|
||
(e.g., `s' for -bs, `t' for -bt, etc.). Suggested by
|
||
Claude Marinier <MARINIER@emp.ewd.dreo.dnd.ca>.
|
||
Add new delivery mode (Odd) that defers all map lookups to queue runs.
|
||
Kind of like queue-only mode (Odq) except it tries to avoid
|
||
any external service requests; for dial-on-demand hosts that
|
||
want to minimize DNS lookups when mail is being queued. For
|
||
this to work you will also have to make sure that gethostbyname
|
||
of your local host name does not do a DNS lookup.
|
||
Improved handling of "out of space" conditions from John Myers of
|
||
Carnegie Mellon.
|
||
Improved security for mailing to files on systems that have fchmod(2)
|
||
support.
|
||
Improve "cannot send message for N days" message -- now says "could
|
||
not send for past N days". Suggested by Tom Moore of AT&T
|
||
Global Information Solutions.
|
||
Less misleading Subject: line on messages sent to postmaster only.
|
||
From Motonori Nakamura.
|
||
Avoid duplicate error messages on bad command line flags. From
|
||
Motonori Nakamura.
|
||
Better error message for case where ruleset 0 falls off the end
|
||
or otherwise does not resolve to a canonical triple.
|
||
Fix a problem that could cause multiple bounce messages if a bad
|
||
address was sent along with a good address to an SMTP
|
||
site where that SMTP site returned a 4yz code in response
|
||
to the final dot of the data. Problem reported by David
|
||
James of British Telecom.
|
||
Add "volatile" declarations so that gcc -O2 will work. Patches
|
||
from Alexander Dupuy of System Management ARTS.
|
||
Delete duplicates in MX lists -- believe it or not, there are sites
|
||
that list the same host twice in an MX list. This deletion
|
||
only works on adjacent preferences, so an MX list that
|
||
had A=5, B=10, A=15 would leave both As, but one that had
|
||
A=5, A=10, B=15 would reduce to A, B. This is intentional,
|
||
just in case there is something weird I haven't thought of.
|
||
Suggested by Barry Shein of Software Tool & Die.
|
||
SECURITY: .forward files cannot be symbolic links. If they are,
|
||
a bad guy can read your private files.
|
||
PORTABILITY FIXES:
|
||
Solaris 2 from Rob McMahon <cudcv@csv.warwick.ac.uk>.
|
||
System V Release 4 from Motonori Nakamura of Ritsumeikan
|
||
University. This expands the disk size
|
||
checking to include all (?) SVR4 configurations.
|
||
System V Release 4 from Kimmo Suominen -- initgroups(3)
|
||
and setrlimit(2) are both available.
|
||
System V Release 4 from sob@sculley.ffg.com -- some versions
|
||
apparently "have EX_OK defined in other headerfiles."
|
||
Linux Makefile typo.
|
||
Linux getusershell(3) is broken in Slackware 2.0 --
|
||
from Andrew Pam of Xanadu Australia.
|
||
More Linux tweaking from John Kennedy of California State
|
||
University, Chico.
|
||
Cray changes from Eric Wassenaar: ``On Cray, shorts,
|
||
ints, and longs are all 64 bits, and all structs
|
||
are multiples of 64 bits. This means that the
|
||
sizeof operator returns only multiples of 8.
|
||
This requires adaptation of code that really
|
||
deals with 32 bit or 16 bit fields, such as IP
|
||
addresses or nameserver fields.''
|
||
DG/UX 5.4.3 from Mark T. Robinson <mtr@ornl.gov>. To
|
||
get the old behaviour, use -DDGUX_5_4_2.
|
||
DG/UX hack: add _FORCE_MAIL_LOCAL_=yes environment
|
||
variable to fix bogus /bin/mail behaviour.
|
||
Tandem NonStop-UX from Rick McCarty <mccarty@mpd.tandem.com>.
|
||
This also cleans up some System V Release 4 compile
|
||
problems.
|
||
Solaris 2: sendmail.cw file should be in /etc/mail to
|
||
match all the other configuration files. Fix
|
||
from Glenn Barry of Emory University.
|
||
Solaris 2.3: compile problem in conf.c. Fix from Alain
|
||
Nissen of the University of Liege, Belgium.
|
||
Ultrix: freespace calculation was incorrect. Fix from
|
||
Takashi Kizu of Osaka University.
|
||
SVR4: running in background gets a SIGTTOU because the
|
||
emulation code doesn't realize that "getpeername"
|
||
doesn't require reading the file. Fix from Peter
|
||
Wemm of DIALix.
|
||
Solaris 2.3: due to an apparent bug in the socket emulation
|
||
library, sockets can get into a "wedged" state where
|
||
they just return EPROTO; closing and re-opening the
|
||
socket clears the problem. Fix from Bob Manson
|
||
of Ohio State University.
|
||
Hitachi 3050R & 3050RX running HI-UX/WE2: portability
|
||
fixes from Akihiro Hashimoto ("Hash") of Chiba
|
||
University.
|
||
AIX changes to allow setproctitle to work from Rainer Sch<63>pf
|
||
of Zentrum f<>r Datenverarbeitung der Universit<69>t
|
||
Mainz.
|
||
AIX changes for load average from Ed Ravin of NASA/Goddard.
|
||
SCO Unix from Chip Rosenthal of Unicom (code was using the
|
||
wrong statfs call).
|
||
ANSI C fixes from Adam Glass (NetBSD project).
|
||
Stardent Titan/ANSI C fixes from Kate Hedstrom of Rutgers
|
||
University.
|
||
DG-UX fixes from Bruce Nagel of Data General.
|
||
IRIX64 updates from Mark Levinson of the University of
|
||
Rochester Medical Center.
|
||
Altos System V (``the first UNIX/XENIX merge the Altos
|
||
did for their Series 1000 & Series 2000 line;
|
||
their merged code was licenced back to AT&T and
|
||
Microsoft and became System V release 3.2'') from
|
||
Tim Rice <timr@crl.com>.
|
||
OSF/1 running on Intel Paragon from Jeff A. Earickson
|
||
<jeff@ssd.intel.com> of Intel Scalable Systems
|
||
Divison.
|
||
Amdahl UTS System V 2.1.5 (SVr3-based) from Janet Jackson
|
||
<janet@dialix.oz.au>.
|
||
System V Release 4 (statvfs semantic fix) from Alain
|
||
Durand of I.M.A.G.
|
||
HP-UX 10.x multiprocessor load average changes from
|
||
Scott Hutton and Jeff Sumler of Indiana University.
|
||
Cray CSOS from Scott Bolte of Cray Computer Corporation.
|
||
Unicos 8.0 from Douglas K. Rand of the University of North
|
||
Dakota, Scientific Computing Center.
|
||
Solaris 2.4 fixes from Sanjay Dani of Dani Communications.
|
||
ConvexOS 11.0 from Christophe Wolfhugel.
|
||
IRIX 4.0.5 from David Ashton-Reader of CADcentre.
|
||
ISC UNIX from J. J. Bailey.
|
||
HP-UX 9.xx on the 8xx series machines from Remy Giraud
|
||
of Meteo France.
|
||
HP-UX configuration from Tom Lane <tgl@sss.pgh.pa.us>.
|
||
IRIX 5.2 and 5.3 from Kari E. Hurtta.
|
||
FreeBSD 2.0 from Mike Hickey of Federal Data Corporation.
|
||
Sony NEWS-OS 4.2.1R and 6.0.3 from Motonori Nakamura.
|
||
Omron LUNA unios-b, mach from Motonori Nakamura.
|
||
NEC EWS-UX/V 4.2 from Motonori Nakamura.
|
||
NeXT 2.1 from Bryan Costales.
|
||
AUX patch thanks to Mike Erwin of Apple Computer.
|
||
HP-UX 10.0 from John Beck of Hewlett-Packard.
|
||
Ultrix: allow -DBROKEN_RES_SEARCH=0 if you are using a
|
||
non-DEC resolver. Suggested by Allan Johannesen.
|
||
UnixWare 2.0 fixes from Petr Lampa of the Technical
|
||
University of Brno (Czech Republic).
|
||
KSR OS 1.2.2 support from Todd Miller of the University
|
||
of Colorado.
|
||
UX4800 support from Kazuhisa Shimizu of NEC.
|
||
MAKEMAP: allow -d flag to allow insertion of duplicate aliases
|
||
in type ``btree'' maps. The semantics of this are undefined
|
||
for regular maps, but it can be useful for the user database.
|
||
MAKEMAP: lock database file while rebuilding to avoid sendmail
|
||
lookups while the rebuild is going on. There is a race
|
||
condition between the open(... O_TRUNC ...) and the lock
|
||
on the file, but it should be quite small.
|
||
SMRSH: sendmail restricted shell added to the release. This can
|
||
be used as an alternative to /bin/sh for the "prog" mailer,
|
||
giving the local administrator more control over what
|
||
programs can be run from sendmail.
|
||
MAIL.LOCAL: add this local mailer to the tape. It is not really
|
||
part of the release proper, and isn't fully supported; in
|
||
particular, it does not run on System V based systems and
|
||
never will.
|
||
CONTRIB: a patch to rmail.c from Bill Gianopoulos of Raytheon
|
||
to allow rmail to compile on systems that don't have
|
||
function prototypes and systems that don't have snprintf.
|
||
CONTRIB: add the "mailprio" scripts that will help you sort mailing
|
||
lists by transaction delay times so that addresses that
|
||
respond quickly get sent first. This is to prevent very
|
||
sluggish servers from delaying other peoples' mail.
|
||
Contributed by Tony Sanders of BSDI.
|
||
CONTRIB: add the "bsdi.mc" file as contributed by Tony Sanders
|
||
of BSDI. This has a lot of comments to help people out.
|
||
CONFIG: Don't have .mc files include(../m4/cf.m4) -- instead,
|
||
put this on the m4 command line. On GNU m4 (which
|
||
supports the __file__ primitive) you can run m4 in an
|
||
arbitrary directory -- use either:
|
||
m4 ${CFDIR}/m4/cf.m4 config.mc > config.cf
|
||
or
|
||
m4 -I${CFDIR} m4/cf.m4 config.mc > config.cf
|
||
On other versions of m4 that don't support __file__, you
|
||
can use:
|
||
m4 -D_CF_DIR_=${CFDIR}/ ${CFDIR}/m4/cf.m4 ...
|
||
(Note the trailing slash on the _CF_DIR_ definition.)
|
||
Old versions of m4 will default to _CF_DIR_=.. for back
|
||
compatibility.
|
||
CONFIG: fix mail from <> so it will properly convert to
|
||
MAILER-DAEMON on local addresses.
|
||
CONFIG: fix code that was supposed to catch colons in host
|
||
names. Problem noted by John Gardiner Myers of CMU.
|
||
CONFIG: allow use of SMTP_MAILER_MAX in nullclient configuration.
|
||
From Paul Riddle of the University of Maryland, Baltimore
|
||
County.
|
||
CONFIG: Catch and reject "." as a host address.
|
||
CONFIG: Generalize domaintable to look up all domains, not
|
||
just unqualified ones.
|
||
CONFIG: Delete OLD_SENDMAIL support -- as near as I can tell, it
|
||
was never used and didn't work anyway.
|
||
CONFIG: Set flags A, w, 5, :, /, |, and @ on the "local" mailer
|
||
and d on all mailers in the UUCP class.
|
||
CONFIG: Allow "user+detail" to be aliased specially: it will first
|
||
look for an alias for "user+detail", then for "user+*", and
|
||
finally for "user". This is intended for forwarding mail
|
||
for system aliases such as root and postmaster to a
|
||
centralized hub.
|
||
CONFIG: add confEIGHT_BIT_HANDLING to set option 8 (see above).
|
||
CONFIG: add smtp8 mailer; this has the F=8 (just-send-8) flag set.
|
||
The F=8 flag is also set on the "relay" mailer, since
|
||
this is expected to be another sendmail.
|
||
CONFIG: avoid qualifying all UUCP addresses sent via SMTP with
|
||
the name of the UUCP_RELAY -- in some cases, this is the
|
||
wrong value (e.g., when we have local UUCP connections),
|
||
and this can create unreplyable addresses. From Chip
|
||
Rosenthal of Unicom.
|
||
CONFIG: add confRECEIVED_HEADER to change the format of the
|
||
Received: header inserted into all messages. Suggested by
|
||
Gary Mills of the University of Manitoba.
|
||
CONFIG: Make "notsticky" the default; use FEATURE(stickyhost)
|
||
to get the old behaviour. I did this upon observing
|
||
that almost everyone needed this feature, and that the
|
||
concept I was trying to make happen didn't work with
|
||
some user agents anyway. FEATURE(notsticky) still works,
|
||
but it is a no-op.
|
||
CONFIG: Add LUSER_RELAY -- the host to which unrecognized user
|
||
names are sent, rather than immediately diagnosing them
|
||
as User Unknown.
|
||
CONFIG: Add SMTP_MAILER_ARGS, ESMTP_MAILER_ARGS, SMTP8_MAILER_ARGS,
|
||
and RELAY_MAILER_ARGS to set the arguments for the
|
||
indicated mailers. All default to "IPC $h". Patch from
|
||
Larry Parmelee of Cornell University.
|
||
CONFIG: pop mailer needs F=n flag to avoid "annoying side effects
|
||
on the client side" and F=P to get an appropriate
|
||
return-path. From Kimmo Suominen.
|
||
CONFIG: add FEATURE(local_procmail) to use the procmail program
|
||
as the local mailer. For addresses of the form "user+detail"
|
||
the "detail" part is passed to procmail via the -a flag.
|
||
Contributed by Kimmo Suominen.
|
||
CONFIG: add MAILER(procmail) to add an interface to procmail for
|
||
use from mailertables. This lets you execute arbitrary
|
||
procmail scripts. Contributed by Kimmo Suominen.
|
||
CONFIG: add T= fields (MTS type) to local, smtp, and uucp mailers.
|
||
CONFIG: add OSTYPE(ptx2) for DYNIX/ptx 2.x from Sequent. From
|
||
Paul Southworth of CICNet Systems Support.
|
||
CONFIG: use -a$g as default to UUCP mailers, instead of -a$f.
|
||
This causes the null return path to be rewritten as
|
||
MAILER-DAEMON; otherwise UUCP gets horribly confused.
|
||
From Michael Hohmuth of Technische Universitat Dresden.
|
||
CONFIG: Add FEATURE(bestmx_is_local) to cause any hosts that
|
||
list us as the best possible MX record to be treated as
|
||
though they were local (essentially, assume that they
|
||
are included in $=w). This can cause additional DNS
|
||
traffic, but is easier to administer if this fits your
|
||
local model. It does not work reliably if there are
|
||
multiple hosts that share the best MX preference.
|
||
Code contributed by John Oleynick of Rutgers.
|
||
CONFIG: Add FEATURE(smrsh) to use smrsh (the SendMail Restricted
|
||
SHell) instead of /bin/sh as the program used for delivery
|
||
to programs. If an argument is included, it is used as
|
||
the path to smrsh; otherwise, /usr/local/etc/smrsh is
|
||
assumed.
|
||
CONFIG: Add LOCAL_MAILER_MAX and PROCMAILER_MAILER_MAX to limit the
|
||
size of messages to the local and procmail mailers
|
||
respectively. Contributed by Brad Knowles of the Defense
|
||
Information Systems Agency.
|
||
CONFIG: Handle leading ``phrase:'' and trailing ``;'' as comments
|
||
(just like text outside of angle brackets) in order to
|
||
properly deal with ``group: addr1, ... addrN;'' syntax.
|
||
CONFIG: Require OSTYPE macro (the defaults really don't apply to
|
||
any real systems any more) and tweak the DOMAIN macro
|
||
so that it is less likely that users will accidently use
|
||
the Berkeley defaults. Also, create some generic files
|
||
that really can be used in the real world.
|
||
CONFIG: Add new configuration macros to set character sets for
|
||
messages _arriving from_ various mailers: LOCAL_MAILER_CHARSET,
|
||
SMTP_MAILER_CHARSET, and UUCP_MAILER_CHARSET.
|
||
CONFIG: Change UUCP_MAX_SIZE to UUCP_MAILER_MAX for consistency.
|
||
The old name will still be accepted for a while at least.
|
||
CONFIG: Implement DECNET_RELAY as spec for host to which DECNET
|
||
mail (.DECNET pseudo-domain or node::user) will be sent.
|
||
As with all relays, it can be ``mailer:hostname''. Suggested
|
||
by Scott Hutton.
|
||
CONFIG: Add MAILER(mail11) to get DECnet support. Code contributed
|
||
by Barb Dijker of Labyrinth Computer Services.
|
||
CONFIG: change confCHECK_ALIASES to default to False -- it has poor
|
||
performance for large alias files, and this confused many
|
||
people.
|
||
CONFIG: Add confCF_VERSION to append local information to the
|
||
configuration version number displayed during SMTP startup.
|
||
CONFIG: fix some.newsgroup.usenet@local.host syntax (previously it
|
||
would only work when locally addressed. Fix from
|
||
Edvard Tuinder of Cistron Internet Services.
|
||
CONFIG: use ${opMode} to avoid error on .REDIRECT addresses if option
|
||
"n" (CheckAlaises) is set when rebuilding alias database.
|
||
Based on code contributed by Claude Marinier.
|
||
CONFIG: Allow mailertable to have values of the form
|
||
``error:code message''. The ``code'' is a status code
|
||
derived from the sysexits codes -- e.g., NOHOST or UNAVAILABLE.
|
||
Contributed by David James <dwj@agw.bt.co.uk>.
|
||
CONFIG: add MASQUERADE_DOMAIN(domain list) to extend the list of
|
||
sender domains that will be replaced with the masquerade name.
|
||
These domains will not be treated as local, but if mail passes
|
||
through with sender addresses in those domains they will be
|
||
replaced by the masquerade name. These can also be specified
|
||
in a file using MASQUERADE_DOMAIN_FILE(filename).
|
||
CONFIG: add FEATURE(masquerade_envelope) to masquerade the envelope
|
||
as well as the header. Substantial improvements to this
|
||
code were contributed by Per Hedeland.
|
||
CONFIG: add MAILER(phquery) to define a new "ph" mailer; this can be
|
||
accessed from a mailertable to do CCSO ph lookups. Contributed
|
||
by Kimmo Suominen.
|
||
CONFIG: add MAILER(cyrus) to define a new Cyrus mailer; this can be
|
||
used to define cyrus and cyrusbb mailers (for IMAP support).
|
||
Contributed by John Gardiner Myers of Carnegie Mellon.
|
||
CONFIG: add confUUCP_MAILER to select default mailer to use for
|
||
UUCP addressing. Suggested by Tom Moore of AT&T GIS.
|
||
NEW FILES:
|
||
cf/cf/cs-hpux10.mc
|
||
cf/cf/cs-solaris2.mc
|
||
cf/cf/cyrusproto.mc
|
||
cf/cf/generic-bsd4.4.mc
|
||
cf/cf/generic-hpux10.mc
|
||
cf/cf/generic-hpux9.mc
|
||
cf/cf/generic-osf1.mc
|
||
cf/cf/generic-solaris2.mc
|
||
cf/cf/generic-sunos4.1.mc
|
||
cf/cf/generic-ultrix4.mc
|
||
cf/cf/huginn.cs.mc
|
||
cf/domain/berkeley-only.m4
|
||
cf/domain/generic.m4
|
||
cf/feature/bestmx_is_local.m4
|
||
cf/feature/local_procmail.m4
|
||
cf/feature/masquerade_envelope.m4
|
||
cf/feature/smrsh.m4
|
||
cf/feature/stickyhost.m4
|
||
cf/feature/use_ct_file.m4
|
||
cf/m4/cfhead.m4
|
||
cf/mailer/cyrus.m4
|
||
cf/mailer/mail11.m4
|
||
cf/mailer/phquery.m4
|
||
cf/mailer/procmail.m4
|
||
cf/ostype/amdahl-uts.m4
|
||
cf/ostype/bsdi2.0.m4
|
||
cf/ostype/hpux10.m4
|
||
cf/ostype/irix5.m4
|
||
cf/ostype/isc4.1.m4
|
||
cf/ostype/ptx2.m4
|
||
cf/ostype/unknown.m4
|
||
contrib/bsdi.mc
|
||
contrib/mailprio
|
||
contrib/rmail.oldsys.patch
|
||
mail.local/mail.local.0
|
||
makemap/makemap.0
|
||
smrsh/README
|
||
smrsh/smrsh.0
|
||
smrsh/smrsh.8
|
||
smrsh/smrsh.c
|
||
src/Makefiles/Makefile.CSOS
|
||
src/Makefiles/Makefile.EWS-UX_V
|
||
src/Makefiles/Makefile.HP-UX.10
|
||
src/Makefiles/Makefile.IRIX.5.x
|
||
src/Makefiles/Makefile.IRIX64
|
||
src/Makefiles/Makefile.ISC
|
||
src/Makefiles/Makefile.KSR
|
||
src/Makefiles/Makefile.NEWS-OS.4.x
|
||
src/Makefiles/Makefile.NEWS-OS.6.x
|
||
src/Makefiles/Makefile.NEXTSTEP
|
||
src/Makefiles/Makefile.NonStop-UX
|
||
src/Makefiles/Makefile.Paragon
|
||
src/Makefiles/Makefile.SCO.3.2v4.2
|
||
src/Makefiles/Makefile.SunOS.5.3
|
||
src/Makefiles/Makefile.SunOS.5.4
|
||
src/Makefiles/Makefile.SunOS.5.5
|
||
src/Makefiles/Makefile.UNIX_SV.4.x.i386
|
||
src/Makefiles/Makefile.uts.systemV
|
||
src/Makefiles/Makefile.UX4800
|
||
src/aliases.0
|
||
src/mailq.0
|
||
src/mime.c
|
||
src/newaliases.0
|
||
src/sendmail.0
|
||
test/t_seteuid.c
|
||
RENAMED FILES:
|
||
cf/cf/alpha.mc => cf/cf/s2k-osf1.mc
|
||
cf/cf/chez.mc => cf/cf/chez.cs.mc
|
||
cf/cf/hpux-cs-exposed.mc => cf/cf/cs-hpux9.mc
|
||
cf/cf/osf1-cs-exposed.mc => cf/cf/cs-osf1.mc
|
||
cf/cf/s2k.mc => cf/cf/s2k-ultrix4.mc
|
||
cf/cf/sunos4.1-cs-exposed.mc => cf/cf/cs-sunos4.1.mc
|
||
cf/cf/ultrix4.1-cs-exposed.mc => cf/cf/cs-ultrix4.mc
|
||
cf/cf/vangogh.mc => cf/cf/vangogh.cs.mc
|
||
cf/domain/Berkeley.m4 => cf/domain/Berkeley.EDU.m4
|
||
cf/domain/cs-exposed.m4 => cf/domain/CS.Berkeley.EDU.m4
|
||
cf/domain/eecs-hidden.m4 => cf/domain/EECS.Berkeley.EDU.m4
|
||
cf/domain/s2k.m4 => cf/domain/S2K.Berkeley.EDU.m4
|
||
cf/ostype/hpux.m4 => cf/ostype/hpux9.m4
|
||
cf/ostype/irix.m4 => cf/ostype/irix4.m4
|
||
cf/ostype/ultrix4.1.m4 => cf/ostype/ultrix4.m4
|
||
src/Makefile.* => src/Makefiles/Makefile.*
|
||
src/Makefile.AUX => src/Makefiles/Makefile.A-UX
|
||
src/Makefile.BSDI => src/Makefiles/Makefile.BSD-OS
|
||
src/Makefile.DGUX => src/Makefiles/Makefile.dgux
|
||
src/Makefile.RISCos => src/Makefiles/Makefile.UMIPS
|
||
src/Makefile.SunOS.4.0.3 => src/Makefiles/Makefile.SunOS.4.0
|
||
OBSOLETED FILES:
|
||
cf/cf/cogsci.mc
|
||
cf/cf/cs-exposed.mc
|
||
cf/cf/cs-hidden.mc
|
||
cf/cf/hpux-cs-hidden.mc
|
||
cf/cf/knecht.mc
|
||
cf/cf/osf1-cs-hidden.mc
|
||
cf/cf/sunos3.5-cs-exposed.mc
|
||
cf/cf/sunos3.5-cs-hidden.mc
|
||
cf/cf/sunos4.1-cs-hidden.mc
|
||
cf/cf/ultrix4.1-cs-hidden.mc
|
||
cf/domain/cs-hidden.m4
|
||
contrib/rcpt-streaming
|
||
src/Makefiles/Makefile.SunOS.5.x
|
||
|
||
8.6.13/8.6.12 96/01/25
|
||
SECURITY: In some cases it was still possible for an attacker to
|
||
insert newlines into a queue file, thus allowing access to
|
||
any user (except root).
|
||
CONFIG: no changes -- it is not a bug that the configuration
|
||
version number is unchanged.
|
||
|
||
8.6.12/8.6.12 95/03/28
|
||
Fix to IDENT code (it was getting the size of the reply buffer
|
||
too small, so nothing was ever accepted). Fix from several
|
||
people, including Allan Johannesen, Shane Castle of the
|
||
Boulder County Information Services, and Jeff Smith of
|
||
Warwick University (all arrived within a few hours of
|
||
each other!).
|
||
Fix a problem that could cause large jobs to run out of
|
||
file descriptors on systems that use vfork() rather
|
||
than fork().
|
||
|
||
8.6.11/8.6.11 95/03/08
|
||
The ``possible attack'' message would be logged more often
|
||
than necessary if you are using Pine as a user agent.
|
||
The wrong host would be reported in the ``possible attack''
|
||
message when attempted from IDENT.
|
||
In some cases the syslog buffer could be overflowed when
|
||
reporting the ``possible attack'' message. This can
|
||
cause denial of service attacks. Truncate the message
|
||
to 80 characters to prevent this problem.
|
||
When reading the IDENT response a loop is needed around the
|
||
read from the network to ensure that you don't get
|
||
partial lines.
|
||
Password entries without any shell listed (that is, a null
|
||
shell) wouldn't match as "ok". Problem noted by
|
||
Rob McMahon.
|
||
When running BIND 4.9.x a problem could occur because the
|
||
_res.options field is initialized differently than it
|
||
was historically -- this requires that sendmail call
|
||
res_init before it tweaks any bits.
|
||
Fix an incompatibility in openxscript() between the file open mode
|
||
and the stdio mode passed to fdopen. This caused UnixWare
|
||
2.0 to have conniptions. Fix from Martin Sohnius of
|
||
Novell Labs Europe.
|
||
Fix problem with static linking of local getopt routine when
|
||
using GNU's ld command. Fix from John Kennedy of
|
||
Cal State Chico.
|
||
It was possible to turn off privacy flags. Problem noted by
|
||
*Hobbit*.
|
||
Be more paranoid about writing files. Suggestions by *Hobbit*
|
||
and Liudvikas Bukys.
|
||
MAKEMAP: fixes for 64 bit machines (DEC Alphas in particular)
|
||
from Spider Boardman.
|
||
CONFIG: No changes (version number only, to keep it in sync
|
||
with the binaries).
|
||
|
||
8.6.10/8.6.10 95/02/10
|
||
SECURITY: Diagnose bogus values to some command line flags that
|
||
could allow trash to get into headers and qf files.
|
||
Validate the name of the user returned by the IDENT protocol.
|
||
Some systems that really dislike IDENT send intentionally
|
||
bogus information. Problem pointed out by Michael Bushnell
|
||
of the Free Software Foundation. Has some security
|
||
implications.
|
||
Fix a problem causing error messages about DNS problems when
|
||
the host name contained a percent sign to act oddly
|
||
because it was passed as a printf-style format string.
|
||
In some cases this could cause core dumps.
|
||
Avoid possible buffer overrun in returntosender() if error
|
||
message is quite ling. From Fletcher Mattox of the
|
||
University of Texas.
|
||
Fix a problem that would silently drop "too many hops" error
|
||
messages if and only if you were sending to an alias.
|
||
From Jon Giltner of the University of Colorado and
|
||
Dan Harton of Oak Ridge National Laboratory.
|
||
Fix a bug that caused core dumps on some systems if -d11.2 was
|
||
set and e->e_message was null. Fix from Bruce Nagel of
|
||
Data General.
|
||
Fix problem that can still cause df files to be left around
|
||
after "hop count exceeded" messages. Fix from Andrew
|
||
Chang and Shau-Ping Lo of SunSoft.
|
||
Fix a problem that can cause buffer overflows on very long
|
||
user names (as might occur if you piped to a program
|
||
with a lot of arguments).
|
||
Avoid returning an error and re-queueing if the host signature
|
||
is null; this can occur on addresses like ``user@.''.
|
||
Problem noted by Wesley Craig and the University of
|
||
Michigan.
|
||
Avoid possible calls to malloc(0) if MCI caching is turned
|
||
off. Bug fix from Pierre David of the Laboratoire
|
||
Parallelisme, Reseaux, Systemes et Modelisation (PRiSM),
|
||
Universite de Versailles - St Quentin, and Jacky
|
||
Thibault.
|
||
Make a local copy of the line being sent via senttolist() -- in
|
||
some cases, buffers could get trashed by map lookups
|
||
causing it to do unexpected things. This also simplifies
|
||
some of the map code.
|
||
CONFIG: No changes (version number only, to keep it in sync
|
||
with the binaries).
|
||
|
||
8.6.9/8.6.9 94/04/19
|
||
Do all mail delivery completely disconnected from any terminal.
|
||
This provides consistency with daemon delivery and
|
||
may have some security implications.
|
||
Make sure that malloc doesn't get called with zero size,
|
||
since that fails on some systems. Reported by Ed
|
||
Hill of the University of Iowa.
|
||
Fix multi-line values for $e (SMTP greeting message). Reported
|
||
by Mike O'Connor of Ford Motor Company.
|
||
Avoid syserr if no NIS domain name is defined, but the map it
|
||
is trying to open is optional. From Win Bent of USC.
|
||
Changes for picky compilers from Ed Gould of Digital Equipment.
|
||
Hesiod support for UDB from Todd Miller of the University of
|
||
Colorado. Use "hesiod" as the service name in the U
|
||
option.
|
||
Fix a problem that failed to set the "authentic" host name (that
|
||
is, the one derived from the socket info) if you called
|
||
sendmail -bs from inetd. Based on code contributed by
|
||
Todd Miller (this problem was also reported by Guy Helmer
|
||
of Dakota State University). This also fixes a related
|
||
problem reported by Liudvikas Bukys of the University of
|
||
Rochester.
|
||
Parameterize "nroff -h" in all the Makefiles so people with
|
||
variant versions can use them easily. Suggested by
|
||
Peter Collinson of Hillside Systems.
|
||
SMTP "MAIL" commands with multiple ESMTP parameters required two
|
||
spaces between parameters instead of one. Reported by
|
||
Valdis Kletnieks of Virginia Tech.
|
||
Reduce the number of system calls during message collection by
|
||
using global timeouts around the collect() loop. This
|
||
code was contributed by Eric Wassenaar.
|
||
If the initial hostname name gathering results in a name
|
||
without a dot (usually caused by NIS misconfiguration)
|
||
and BIND is compiled in, directly access DNS to get
|
||
the canonical name. This should make life easier for
|
||
Solaris systems. If it still can't be resolved, and
|
||
if the name server is listed as "required", try again
|
||
in 30 seconds. If that also fails, exit immediately to
|
||
avoid bogus "config error: mail loops back to myself"
|
||
messages.
|
||
Improve the "MAIL DELETED BECAUSE OF LACK OF DISK SPACE" error
|
||
message to explain how much space was available and
|
||
sound a bit less threatening. Suggested by Stan Janet
|
||
of the National Institute of Standards and Technology.
|
||
If mail is delivered to an alias that has an owner, deliver any
|
||
requested return-receipt immediately, and strip the
|
||
Return-Receipt-To: header from the subsequent message.
|
||
This prevents a certain class of denial of service
|
||
attack, arguably gives more reasonable semantics, and
|
||
moves things more towards what will probably become a
|
||
network standard. Suggested by Christopher Davis of
|
||
Kapor Enterprises.
|
||
Add a "noreceipts" privacy flag to turn off all return receipts
|
||
without recompiling.
|
||
Avoid printing ESMTP parameters as part of the error message
|
||
if there are errors during parsing. This change is
|
||
purely cosmetic.
|
||
Avoid sending out error messages during the collect phase of
|
||
SMTP; there is an MVS mailer from UCLA that gets
|
||
confused by this. Of course, I think it's their bug....
|
||
Check for the $j macro getting undefined, losing a dot, or getting
|
||
lost from $=w in the daemon before accepting a connection;
|
||
if it is, it dumps state, prints a LOG_ALERT message,
|
||
and drops core for debugging. This is an attempt to
|
||
track down a bug that I thought was long since gone.
|
||
If you see this, please forward the log fragment to
|
||
sendmail@sendmail.ORG.
|
||
Change OLD_NEWDB from a #ifdef to a #if so it can be turned off
|
||
with -DOLD_NEWDB=0 on the command line. From Christophe
|
||
Wolfhugel.
|
||
Instead of trying to truncate the listen queue for the server
|
||
SMTP port when the load average is too high, just close
|
||
the port completely and reopen it later as needed.
|
||
This ensures that the other end gets a quick "connection
|
||
refused" response, and that the connection can be
|
||
recovered later. In particular, some socket emulations
|
||
seem to get confused if you tweak the listen queue
|
||
size around and can never start listening to connections
|
||
again. The down side is that someone could start up
|
||
another daemon process in the interim, so you could
|
||
have multiple daemons all not listening to connections;
|
||
this could in turn cause the sendmail.pid file to be
|
||
incorrect. A better approach might be to accept the
|
||
connection and give a 421 code, but that could break
|
||
other mailers in mysterious ways and have paging behaviour
|
||
implications.
|
||
Fix a glitch in TCP-level debugging that caused flag 16.101 to
|
||
set debugging on the wrong socket. From Eric Wassenaar.
|
||
When creating a df* temporary file, be sure you truncate any
|
||
existing data in the file -- otherwise system crashes
|
||
and the like could result in extra data being sent.
|
||
DOC: Replace the CHANGES-R5-R8 readme file with a paper in the
|
||
doc directory. This includes some additional
|
||
information.
|
||
CONFIG: change UUCP rules to never add $U! or $k! on the front
|
||
of recipient envelope addresses. This should have been
|
||
handled by the $&h trick, but broke if people were
|
||
mixing domainized and UUCP addresses. They should
|
||
probably have converted all the way over to uucp-uudom
|
||
instead of uucp-{new,old}, but the failure mode was to
|
||
loop the mail, which was bad news.
|
||
Portability fixes:
|
||
Newer BSDI systems (several people).
|
||
Older BSDI systems from Christophe Wolfhugel.
|
||
Intergraph CLIX, from Paul Southworth of CICNet.
|
||
UnixWare, from Evan Champion.
|
||
NetBSD from Adam Glass.
|
||
Solaris from Quentin Campbell of the University of
|
||
Newcastle upon Tyne.
|
||
IRIX from Dean Cookson and Bill Driscoll of Mitre
|
||
Corporation.
|
||
NCR 3000 from Kevin Darcy of Chrysler Financial Corporation.
|
||
SunOS (it has setsid() and setvbuf() calls) from
|
||
Jonathan Kamens of OpenVision Technologies.
|
||
HP-UX from Tor Lillqvist.
|
||
New Files:
|
||
src/Makefile.CLIX
|
||
src/Makefile.NCR3000
|
||
doc/changes/Makefile
|
||
doc/changes/changes.me
|
||
doc/changes/changes.ps
|
||
|
||
8.6.8/8.6.6 94/03/21
|
||
SECURITY: it was possible to read any file as root using the
|
||
E (error message) option. Reported by Richard Jones;
|
||
fixed by Michael Corrigan and Christophe Wolfhugel.
|
||
|
||
8.6.7/8.6.6 94/03/14
|
||
SECURITY: it was possible to get root access by using weird
|
||
values to the -d flag. Thanks to Alain Durand of
|
||
INRIA for forwarding me the notice from the bugtraq
|
||
list.
|
||
|
||
8.6.6/8.6.6 94/03/13
|
||
SECURITY: the ability to give files away on System V-based
|
||
systems proved dangerous -- don't run as the owner
|
||
of a :include: file on a system that allows giveaways.
|
||
Unfortunately, this also applies to determining a
|
||
valid shell.
|
||
IMPORTANT: Previous versions weren't expiring old connections
|
||
in the connection cache for a long time under some
|
||
circumstances. This could result in resource exhaustion,
|
||
both at your end and at the other end. This checks the
|
||
connections for timeouts much more frequently. From
|
||
Doug Anderson of NCSC.
|
||
Fix a glitch that snuck in that caused programs to be run as
|
||
the sender instead of the recipient if the mail was
|
||
from a local user to another local user. From
|
||
Motonori Nakamura of Kyoto University.
|
||
Fix "wildcard" on /etc/shells matching -- instead of looking
|
||
for "*", look for "/SENDMAIL/ANY/SHELL/". From
|
||
Bryan Costales of ICSI.
|
||
Change the method used to declare the "statfs" availability;
|
||
instead of HASSTATFS and/or HASUSTAT with a ton of
|
||
tweaking in conf.c, there is a single #define called
|
||
SFS_TYPE which takes on one of six values (SFS_NONE
|
||
for no statfs availability, SFS_USTAT for the ustat(2)
|
||
syscall, SFS_4ARGS for a four argument statfs(2) call,
|
||
and SFS_VFS, SFS_MOUNT, or SFS_STATFS for a two argument
|
||
statfs(2) call with the declarations in <sys/vfs.h>,
|
||
<sys/mount.h>, or <sys/statfs.h> respectively).
|
||
Fix glitch in NetInfo support that could return garbage if
|
||
there was no "/locations/sendmail" property. From
|
||
David Meyer of the University of Virginia.
|
||
Change HASFLOCK from defined/not-defined to a 0/1 definition
|
||
to allow Linux to turn it off even though it is a
|
||
BSD-like system.
|
||
Allow setting of "ident" timeout to zero to turn off the ident
|
||
protocol entirely.
|
||
Make 7-bit stripping local to a connection (instead of to a
|
||
mailer); this allows you to specify that SMTP is a
|
||
7-bit channel, but revert to 8-bit should it advertise
|
||
that it supports 8BITMIME. You still have to specify
|
||
mailer flag 7 to get this stripping at all.
|
||
Improve makesendmail script so it handles more cases automatically.
|
||
Tighten up restrictions on taking ownership of :include: files
|
||
to avoid problems on systems that allow you to give away
|
||
files.
|
||
Fix a problem that made it impossible to rebuild the alias
|
||
file if it was on a read-only file system. From
|
||
Harry Edmon of the University of Washington.
|
||
Improve MX randomization function. From John Gardiner Myers
|
||
of CMU.
|
||
Fix a minor glitch causing a bogus message to be printed (used
|
||
%s instead of %d in a printf string for the line number)
|
||
when a bad queue file was read. From Harry Edmon.
|
||
Allow $s to remain NULL on locally generated mail. I'm not
|
||
sure this is necessary, but a lot of people have complained
|
||
about it, and there is a legitimate question as to whether
|
||
"localhost" is legal as an 822-style domain.
|
||
Fix a problem with very short line lengths (mailer L= flag) in
|
||
headers. This causes a leading space to be added onto
|
||
continuation lines (including in the body!), and also
|
||
tries to wrap headers containing addresses (From:, To:,
|
||
etc) intelligently at the shorter line lengths. Problem
|
||
Reported by Lars-Johan Liman of SUNET Operations Center.
|
||
Log the real user name when logging syserrs, since these can have
|
||
security implications. Suggested by several people.
|
||
Fix address logging of cached connections -- it used to always
|
||
log the numeric address as zero. This is a somewhat
|
||
bogus implementation in that it does an extra system
|
||
call, but it should be an inexpensive one. Fix from
|
||
Motonori Nakamura.
|
||
Tighten up handling of short syslog buffers even more -- there
|
||
were cases where the outgoing relay= name was too long
|
||
to share a line with delay= and mailer= logging.
|
||
Limit the overhead on split envelopes to one open file descriptor
|
||
per envelope -- previously the overhead was three
|
||
descriptors. This was in response to a problem reported
|
||
by P{r (Pell) Emanuelsson.
|
||
Fixes to better handle the case of unexpected connection closes;
|
||
this redirects the output to the transcript so the info
|
||
is not lost. From Eric Wassenaar.
|
||
Fix potential string overrun if you macro evaluate a string that
|
||
has a naked $ at the end. Problem noted by James Matheson
|
||
<jmrm@eng.cam.ac.uk>.
|
||
Make default error number on $#error messages 553 (``Requested
|
||
action not taken: mailbox name not allowed'') instead of
|
||
501 (``Syntax error in parameters or arguments'') to
|
||
avoid bogus "protocol error" messages.
|
||
Strip off any existing trailing dot on names during $[ ... $]
|
||
lookup. This prevents it from ending up with two dots
|
||
on the end of dot terminated names. From Wesley Craig
|
||
of the University of Michigan and Bryan Costales of ICSI.
|
||
Clean up file class reading so that the debugging information is
|
||
more informative. It hadn't been using setclass, so you
|
||
didn't see the class items being added.
|
||
Avoid core dump if you are running a version of sendmail where
|
||
NIS is compiled in, and you specify an NIS map, but
|
||
NIS is not running. Fix from John Oleynick of
|
||
Rutgers.
|
||
Diagnose bizarre case where res_search returns a failure value,
|
||
but sets h_errno to a success value.
|
||
Make sure that "too many hops" messages are considered important
|
||
enough to send an error to the Postmaster (that is, the
|
||
address specified in the P option). This fix should
|
||
help problems that cause the df file to be left around
|
||
sometimes -- unfortunately, I can't seem to reproduce
|
||
the problem myself.
|
||
Avoid core dump (null pointer reference) on EXPN command; this
|
||
only occurred if your log level was set to 10 or higher
|
||
and the target account was an alias or had a .forward file.
|
||
Problem noted by Janne Himanka.
|
||
Avoid "denial of service" attacks by someone who is flooding your
|
||
SMTP port with bad commands by shutting the connection
|
||
after 25 bad commands are issued. From Kyle Jones of
|
||
UUNET.
|
||
Fix core dump on error messages with very long "to" buffers;
|
||
fmtmsg overflows the message buffer. Fixed by trimming
|
||
the to address to 203 characters. Problem reported by
|
||
John Oleynick.
|
||
Fix configuration for HASFLOCK -- there were some spots where
|
||
a #ifndef was incorrectly #ifdef. Pointed out by
|
||
George Baltz of the University of Maryland.
|
||
Fix a typo in savemail() that could cause the error message To:
|
||
lists to be incorrect in some places. From Motonori
|
||
Nakamura.
|
||
Fix a glitch that can cause duplicate error messages on split
|
||
envelopes where an address on one of the lists has a
|
||
name server failure. Fix from Voradesh Yenbut of the
|
||
University of Washington.
|
||
Fix possible bogus pointer reference on ESMTP parameters that
|
||
don't have an ``=value'' part.
|
||
CNAME loops caused an error message to be generated, but also
|
||
re-queued the message. Changed to just re-queue the
|
||
message (it's really hard to just bounce it because
|
||
of the weird way the name server works in the presence
|
||
of CNAME loops). Problem noted by James M.R.Matheson
|
||
of Cambridge University.
|
||
Avoid giving ``warning: foo owned process doing -bs'' messages
|
||
if they use ``MAIL FROM:<foo>'' where foo is their true
|
||
user name. Suggested by Andreas Stolcke of ICSI.
|
||
Change the NAMED_BIND compile flag to be a 0/1 flag so you can
|
||
override it easily in the Makefile -- that is, you can
|
||
turn it off using -DNAMED_BIND=0.
|
||
If a gethostbyname(...) of an address with a trailing dot fails,
|
||
try it without the trailing dot. This is because if
|
||
you have a version of gethostbyname() that falls back
|
||
to NIS or the /etc/hosts file it will fail to find
|
||
perfectly reasonable names that just don't happen to
|
||
be dot terminated in the hosts file. You don't want to
|
||
strip the dot first though because we're trying to ensure
|
||
that country names that match one of your subdomains get
|
||
a chance.
|
||
PRALIASES: fix bogus output on non-null-terminated strings.
|
||
From Bill Gianopoulos of Raytheon.
|
||
CONFIG: Avoid rewriting anything that matches $w to be $j.
|
||
This was in code intended to only catch the self-literal
|
||
address (that is, [1.2.3.4], where 1.2.3.4 is your
|
||
IP address), but the code was broken. However, it will
|
||
still do this if $M is defined; this is necessary to
|
||
get client configurations to work (sigh). Note that this
|
||
means that $M overrides :mailname entries in the user
|
||
database! Problem noted by Paul Southworth.
|
||
CONFIG: Fix definition of Solaris help file location. From
|
||
Steve Cliffe <steve@gorgon.cs.uow.edu.au>.
|
||
CONFIG: Fix bug that broke news.group.USENET mappings.
|
||
CONFIG: Allow declaration of SMTP_MAILER_MAX, FAX_MAILER_MAX,
|
||
and USENET_MAILER_MAX to tweak the maximum message
|
||
size for various mailers.
|
||
CONFIG: Change definition of USENET_MAILER_ARGS to include argv[0]
|
||
instead of assuming that it is "inews" for consistency
|
||
with other mailers. From Michael Corrigan of UC San Diego.
|
||
CONFIG: When mail is forwarded to a LOCAL_RELAY or a MAIL_HUB,
|
||
qualify the address in the SMTP envelope as user@{relay|hub}
|
||
instead of user@$j. From Bill Wisner of The Well.
|
||
CONFIG: Fix route-addr syntax in nullrelay configuration set.
|
||
CONFIG: Don't turn off case mapping of user names in the local
|
||
mailer for IRIX. This was different than most every other
|
||
system.
|
||
CONFIG: Avoid infinite loops on certainly list:; syntaxes in
|
||
envelope. Noted by Thierry Besancon
|
||
<besancon@excalibur.ens.fr>.
|
||
CONFIG: Don't include -z by default on uux line -- most systems
|
||
don't want it set by default. Pointed out by Philippe
|
||
Michel of Thomson CSF.
|
||
CONFIG: Fix some bugs with mailertables -- for example, if your
|
||
host name was foo.bar.ray.com and you matched against
|
||
".ray.com", the old implementation bound %1 to "bar"
|
||
instead of "foo.bar". Also, allow "." in the mailertable
|
||
to match anything -- essentially, take over SMART_HOST.
|
||
This also moves matching of explicit local host names
|
||
before the mailertable so they don't have to be special
|
||
cased in the mailertable data. Reported by Bill
|
||
Gianopoulos of Raytheon; the fix for the %1 binding
|
||
problem was contributed by Nicholas Comanos of the
|
||
University of Sydney.
|
||
CONFIG: Don't include "root" in class $=L (users to deliver
|
||
locally, even if a hub or relay exists) by default.
|
||
This is because of the known bug where definition of
|
||
both a LOCAL_RELAY and a MAIL_HUB causes $=L to ignore
|
||
both and deliver into the local mailbox.
|
||
CONFIG: Move up bitdomain and uudomain handling so that they
|
||
are done before .UUCP class matching; uudomain was
|
||
reported as ineffective before. This also frees up
|
||
diversion 8 for future use. Problem reported by Kimmo
|
||
Suominen.
|
||
CONFIG: Don't try to convert dotted IP address (e.g., [1.2.3.4])
|
||
into host names. As pointed out by Jonathan Kamens,
|
||
these are often used because either the forward or reverse
|
||
mapping is broken; this translation makes it broken again.
|
||
DOC: Clarify $@ and $: in the Install & Op Guide. From Kimmo
|
||
Suominen.
|
||
Portability fixes:
|
||
Unicos from David L. Kensiski of Sterling Sofware.
|
||
DomainOS from Don Lewis of Silicon Systems.
|
||
GNU m4 1.0.3 from Karst Koymans of Utrecht University.
|
||
Convex from Kimmo Suominen <kim@tac.nyc.ny.us>.
|
||
NetBSD from Adam Glass <glass@sun-lamp.cs.berkeley.edu>.
|
||
BSD/386 from Tony Sanders of BSDI.
|
||
Apollo from Eric Wassenaar.
|
||
DGUX from Doug Anderson.
|
||
Sequent DYNIX/ptx 2.0 from Tim Wright of Sequent.
|
||
NEW FILES:
|
||
src/Makefile.DomainOS
|
||
src/Makefile.PTX
|
||
src/Makefile.SunOS.5.1
|
||
src/Makefile.SunOS.5.2
|
||
src/Makefile.SunOS.5.x
|
||
src/mailq.1
|
||
cf/ostype/domainos.m4
|
||
doc/op/Makefile
|
||
doc/intro/Makefile
|
||
doc/usenix/Makefile
|
||
|
||
8.6.5/8.6.5 94/01/13
|
||
Security fix: /.forward could be owned by anyone (the test
|
||
to allow root to own any file was backwards). From
|
||
Bob Campbell at U.C. Berkeley.
|
||
Security fix: group ids were not completely set when programs
|
||
were invoked. This caused programs to have group
|
||
permissions they should not have had (usually group
|
||
daemon instead of their own group). In particular,
|
||
Perl scripts would refuse to run.
|
||
Security: check to make sure files that are written are not
|
||
symbolic links (at least under some circumstances).
|
||
Although this does not respond to a specific known
|
||
attack, it's just a good idea. Suggested by
|
||
Christian Wettergren.
|
||
Security fix: if a user had an NFS mounted home directory on
|
||
a system with a restricted shell listed in their
|
||
/etc/passwd entry, they could still execute any
|
||
program by putting that in their .forward file.
|
||
This fix prevents that by insisting that their shell
|
||
appear in /etc/shells before allowing a .forward to
|
||
execute a program or write a file. You can disable
|
||
this by putting "*" in /etc/shells. It also won't
|
||
permit world-writable :include: files to reference
|
||
programs or files (there's no way to disable this).
|
||
These behaviours are only one level deep -- for
|
||
example, it is legal for a world-writable :include:
|
||
file to reference an alias that writes a file, on
|
||
the assumption that the alias file is well controlled.
|
||
Security fix: root was not treated suspiciously enough when
|
||
looking into subdirectories. This would potentially
|
||
allow a cracker to examine files that were publically
|
||
readable but in a non-publically searchable directory.
|
||
Fix a problem that causes an error on QUIT on a cached
|
||
connection to create problems on the current job.
|
||
These are typically unrelated, so errors occur in
|
||
the wrong place.
|
||
Reset CurrentLA in sendall() -- this makes sendmail queue
|
||
runs more responsive to load average, and fixes a
|
||
problem that ignored the load average in locally
|
||
generated mail. From Eric Wassenaar.
|
||
Fix possible core dump on aliases with null LHS. From
|
||
John Orthoefer of BB&N.
|
||
Revert to using flock() whenever possible -- there are just
|
||
too many bugs in fcntl() locking, particularly over
|
||
NFS, that cause sendmail to fail in perverse ways.
|
||
Fix a bug that causes the connection cache to get confused
|
||
when sending error messages. This resulted in
|
||
"unexpected close" messages. It should fix itself
|
||
on the following queue run. Problem noted by
|
||
Liudvikas Bukys of the University of Rochester.
|
||
Include $k in $=k as documented in the Install & Op Guide.
|
||
This seems odd, but it was documented.... From
|
||
Michael Corrigan of UCSD.
|
||
Fix problem that caused :include:s from alias files to be
|
||
forced to be owned by root instead of daemon
|
||
(actually DefUid). From Tim Irvin.
|
||
Diagnose unrecognized I option values -- from Mortin Forssen
|
||
of the Chalmers University of Technology.
|
||
Make "error" mailer work consistently when there is no error
|
||
code associated with it -- previously it returned OK
|
||
even though there was a real problem. Now it assumes
|
||
EX_UNAVAILABLE.
|
||
Fix bug that caused the last header line of messages that had
|
||
no body and which were terminated with EOF instead of
|
||
"." to be discarded. Problem noted by Liudvikas Bukys.
|
||
Fix core dump on SMTP mail to programs that failed -- it tried
|
||
to go to a "next MX host" when none existed, causing
|
||
a core dump. From der Mouse at McGill University.
|
||
Change IDENTPROTO from a defined/not defined to a 0/1 switch;
|
||
this makes it easier to turn it off (using
|
||
-DIDENTPROTO=0 in the Makefile). From der Mouse.
|
||
Fix YP_MASTER_NAME store to use the unupdated result of
|
||
gethostname() (instead of myhostname(), which tries
|
||
to fully qualify the name) to be consistent with
|
||
SunOS. If your hostname is unqualified, this fixes
|
||
transfers to slave servers. Bug noted by Keith
|
||
McMillan of Ameritech Services, Inc.
|
||
Fix Ultrix problem: gethostbyname() can return a very large
|
||
(> 500) h_length field, which causes the sockaddr
|
||
to be trashed. Use the size of the sockaddr instead.
|
||
Fix from Bob Manson of Ohio State.
|
||
Don't assume "-a." on host lookups if NAMED_BIND is not
|
||
defined -- this confuses gethostbyname on hosts
|
||
file lookups, which doesn't understand the trailing
|
||
dot convention.
|
||
Log SMTP server subprocesses that die with a signal instead
|
||
of from a clean exit.
|
||
If you don't have option "I" set, don't assume that a DNS
|
||
"host unknown" message is authoritative -- it
|
||
might still be found in /etc/hosts.
|
||
Fix a problem that would cause Deferred: messages to be sent
|
||
as the subject of an error message, even though the
|
||
actual cause of a message was more severe than that.
|
||
Problem noted by Chris Seabrook of OSSI.
|
||
Fix race condition in DBM alias file locking. From Kyle
|
||
Jones of UUNET.
|
||
Limit delivery syslog line length to avoid bugs in some
|
||
versions of syslog(3). This adds a new compile time
|
||
variable SYSLOG_BUFSIZE. From Jay Plett of Princeton
|
||
University, which is in turn derived from IDA.
|
||
Fix quotes inside of comments in addresses -- previously
|
||
it insisted that they be balanced, but the 822 spec
|
||
says that they should be ignored.
|
||
Dump open file state to syslog upon receiving SIGUSR1 (for
|
||
debugging). This also evaluates ruleset 89, if set
|
||
(with the null input), and logs the result. This
|
||
should be used sparingly, since the rewrite process
|
||
is not reentrant.
|
||
Change -qI, -qR, and -qS flags to be case-insensitive as
|
||
documented in the Bat Book.
|
||
If the mailer returned EX_IOERR or EX_OSERR, sendmail did not
|
||
return an error message and did not requeue the message.
|
||
Fix based on code from Roland Dirlewanger of
|
||
Reseau Regional Aquarel, Bordeaux, France.
|
||
Fix a problem that caused a seg fault if you got a 421 error
|
||
code during some parts of connection initialization.
|
||
I've only seen this when talking to buggy mailers on
|
||
the other end, but it shouldn't give a seg fault in
|
||
any case. From Amir Plivatsky.
|
||
Fix core dump caused by a ruleset call that returns null.
|
||
Fix from Bryan Costales of ICSI.
|
||
Full-Name: field was being ignored. Fix from Motonori Nakamura
|
||
of Kyoto University.
|
||
Fix a possible problem with very long input lines in setproctitle.
|
||
From P{r Emanuelsson.
|
||
Avoid putting "This is a warning message" out on return receipts.
|
||
Suggested by Douglas Anderson.
|
||
Detect loops caused by recursive ruleset calls. Suggested by
|
||
Bryan Costales.
|
||
Initialize non-alias maps during alias rebuilds -- they may be
|
||
needed for parsing. Problem noted by Douglas Anderson.
|
||
Log sender address even if no message was collected in SMTP
|
||
(e.g., if all RCPTs failed). Suggested by Motonori
|
||
Nakamura.
|
||
Don't reflect the owner-list contents into the envelope sender
|
||
address if the value contains ", :, /, or | (to avoid
|
||
illegal addresses appearing there).
|
||
Efficiency hack for toktype macro -- from Craig Partridge of
|
||
BB&N.
|
||
Clean up DNS error printing so that a host name is always
|
||
included.
|
||
Remember to set $i during queue runs. Reported by Stephen
|
||
Campbell of Dartmouth University.
|
||
If the environment variable HOSTALIASES is set, use it during
|
||
canonification as the name of a file with per-user host
|
||
translations so that headers are properly mapped. Reported
|
||
by Anne Bennett of Concordia University.
|
||
Avoid printing misleading error message if SMTP mailer (not
|
||
using [IPC]) should die on a core dump.
|
||
Avoid incorrect diagnosis of "file 1 closed" when it is caused
|
||
by the other end closing the connection. From
|
||
Dave Morrison of Oracle.
|
||
Improve several of the error messages printed by "mailq"
|
||
to include a host name or other useful information.
|
||
Add NetInfo preliminary support for NeXT systems. From Vince
|
||
DeMarco.
|
||
Fix a glitch that sometimes caused :include:s that pointed to
|
||
NFS filesystems that were down to give an "aliasing/
|
||
forwarding loop broken" message instead of queueing
|
||
the message for retry. Noted by William C Fenner of
|
||
the NRL Connection Machine Facility.
|
||
Fix a problem that could cause a core dump if the input sequence
|
||
had (or somehow acquired) a \231 character.
|
||
Make sure that route-addrs always have <angle brackets> around
|
||
them in non-SMTP envelopes (SMTP envelopes already do
|
||
this properly).
|
||
Avoid weird headers on unbalanced punctuation of the form:
|
||
``Joe User <user)'' -- this caused reference to the
|
||
null macro. Fix from Rick McCarty of IO.COM.
|
||
Fix a problem that caused an alias "user: user@local.host" to
|
||
not have the QNOTREMOTE bit set; this caused configs
|
||
to act as if FEATURE(notsticky) was defined even when
|
||
it was not. The effect of the problem was to make it
|
||
very hard to to set up satellite sites that had a few
|
||
local accounts, with everything else forwarded to a
|
||
corporate hub. Reported by Detlef Drewanz of the
|
||
University of Rostock and Mark Frost of NCD.
|
||
Change queuing to not call rulesets 3, {1 or 2}, 4 on header
|
||
addresses. This is more efficient (fewer name server
|
||
calls) and fixes certain unusual configurations, such
|
||
as those that have ruleset 4 do something that is
|
||
non-idempotent unless a mailer-specific ruleset did
|
||
something else. Problem reported by Brian J. Coan
|
||
of the Institute for Global Communications.
|
||
Fix the "obsolete argument" routine in main to better understand
|
||
new arguments. For example, if you used ``sendmail
|
||
-C config -v -q'' it would choke on the -q because
|
||
the -C would stop looking for old-format arguments.
|
||
Fix the code that was intended to allow two users to forward their
|
||
mail to the same program and have them appear unique.
|
||
Portability fixes for:
|
||
SCO UNIX from Murray Kucherawy.
|
||
SCO Open Server 3.2v4 from Philippe Brand.
|
||
System V Release 4 from Rick Ellis and others.
|
||
OSF/1 from Steve Campbell.
|
||
DG/UX from Ben Mesander of the USGS and Bryan Curnutt
|
||
of Stoner Associates.
|
||
Motorola SysV88 from Kevin Johnson of Motorola.
|
||
Solaris 2.3 from Casper H.S. Dik of the University
|
||
of Amsterdam and John Caruso of University
|
||
of Maryland.
|
||
FreeBSD from Ollivier Robert.
|
||
NetBSD from Adam Glass.
|
||
TitanOS from Kate Hedstrom of Rutgers University.
|
||
Irix from Bryan Curnutt.
|
||
Dynix from Jim Davis of the University of Arizona.
|
||
RISC/os.
|
||
Linux from John Kennedy of California State University
|
||
at Chico.
|
||
Solaris 2.x from Tony Boner of the U.S. Air Force.
|
||
NEXTSTEP 3.x from Vince DeMarco.
|
||
HP-UX from various people. NOTA BENE: the location
|
||
of the config file has moved to /usr/lib
|
||
to match the HP-UX version of sendmail.
|
||
CONFIG: Don't do any recipient rewriting on relay mailer;
|
||
since this is intended only for internal use, the
|
||
usual RFC 821/822/1123 rules can be relaxed. The
|
||
main point of this is to avoid munging (ugh) UUCP
|
||
addresses when relaying internally.
|
||
CONFIG: fix typo in mailer/uucp.m4 that mutilates list:;
|
||
syntax addresses delivered via UUCP. Solution
|
||
provided by Peter Wemm.
|
||
CONFIG: fix thumb-fumble in default UUCP relaying in ruleset
|
||
zero; it caused double @ signs in addresses. From
|
||
Irving Reid of the University of Toronto.
|
||
CONFIG: Portability fixes for SCO Unix 3.2 with TCP/IP 1.2.1
|
||
from Markku Toijala of ICL Personal Systems Oy.
|
||
CONFIG: Add trailing "." on pseudo-domains for consistency;
|
||
this fixes a problem (noted by Al Whaley of Sunnyside)
|
||
that made it hard to recognize your own pseudodomain
|
||
names.
|
||
CONFIG: catch "@host" syntax errors (i.e., null local-parts)
|
||
rather than letting them get "local configuration
|
||
error"s. Problem noted by John Gardiner Myers.
|
||
CONFIG: add uucp-uudom mailer variant, based on code posted
|
||
by Spider Boardman <spider@Orb.Nashua.NH.US>; this
|
||
has uucp-dom semantics but old UUCP syntax. This
|
||
also permits "uucp-old" as an alias for "uucp" and
|
||
"uucp-new" as a synonym for "suucp" for consistency.
|
||
CONFIG: add POP mailer support (from Kimmo Suominen
|
||
<kim@grendel.lut.fi>).
|
||
CONFIG: drop CSNET_RELAY support -- CSNET is long gone.
|
||
CONFIG: fix bug caused with domain literal addresses (e.g.,
|
||
``[128.32.131.12]'') when FEATURE(allmasquerade)
|
||
was set; it would get an additional @masquerade.host
|
||
added to the address. Problem noted by Peter Wan
|
||
of Georgia Tech.
|
||
CONFIG: make sure that the local UUCP name is in $=w. From
|
||
Jim Murray of Stratus.
|
||
CONFIG: changes to UUCP rewriting to simulate IDA-style "V"
|
||
mailer flag. Briefly, if you are sending to host
|
||
"foo", then it rewrites "foo!...!baz" to "...!baz",
|
||
"foo!baz" remains "foo!baz", and anything else has
|
||
the local name prepended.
|
||
CONFIG: portability fixes for HP-UX.
|
||
DOC: several minor problems fixed in the Install & Op Guide.
|
||
MAKEMAP: fix core dump problem on lines that are too long or
|
||
which lack newline. From Mark Delany.
|
||
MAILSTATS: print sums of columns (total messages & kbytes
|
||
in and out of the system). From Tom Ferrin of UC
|
||
San Francisco Computer Graphics Lab.
|
||
SIGNIFICANT USER- OR SYSAD-VISIBLE CHANGES:
|
||
On HP-UX, /etc/sendmail.cf has been moved to
|
||
/usr/lib/sendmail.cf to match HP sendmail.
|
||
Permissions have been tightened up on world-writable
|
||
:include: files and accounts that have shells
|
||
that are not listed in /etc/shells. This may
|
||
cause some .forward files that have worked
|
||
before to start failing.
|
||
SIGUSR1 dumps some state to the log.
|
||
NEW FILES:
|
||
src/Makefile.DGUX
|
||
src/Makefile.Dynix
|
||
src/Makefile.FreeBSD
|
||
src/Makefile.Mach386
|
||
src/Makefile.NetBSD
|
||
src/Makefile.RISCos
|
||
src/Makefile.SCO
|
||
src/Makefile.SVR4
|
||
src/Makefile.Titan
|
||
cf/mailer/pop.m4
|
||
cf/ostype/bsdi1.0.m4
|
||
cf/ostype/dgux.m4
|
||
cf/ostype/dynix3.2.m4
|
||
cf/ostype/sco3.2.m4
|
||
makemap/Makefile.dist
|
||
praliases/Makefile.dist
|
||
|
||
8.6.4/8.6.4 93/10/31
|
||
Repair core-dump problem (write to read-only memory segment)
|
||
if you fall back to the return-to-Postmaster case in
|
||
savemail. Problem reported by Richard Liu.
|
||
Immediately diagnose bogus sender addresses in SMTP. This
|
||
makes quite certain that crackers can't use this
|
||
class of attack.
|
||
Reliability Fix: check return value from fclose() and fsync()
|
||
in a few critical places.
|
||
Minor problem in initsys() that reversed a condition for
|
||
redirecting the output channel on queue runs. It's
|
||
not clear this code even does anything. From Eric
|
||
Wassenaar of the Dutch National Institute for Nuclear
|
||
and High-Energy Physics.
|
||
Fix some problems that caused queue runs to do "too much work",
|
||
such as double-reading the Errors-To: header. From
|
||
Eric Wassenaar.
|
||
Error messages on writing the temporary file (including the
|
||
data file) were getting suppressed in SMTP -- this
|
||
fix causes them to be properly reported. From Eric
|
||
Wassenaar.
|
||
Some changes to support AF_UNIX sockets -- this will only
|
||
really become relevant in the next release, but some
|
||
people need it for local patches. From Michael
|
||
Corrigan of UC San Diego.
|
||
Use dynamically allocated memory (instead of static buffers)
|
||
for macros defined in initsys() and settime(); since
|
||
these can have different values depending on which
|
||
envelope they are in. From Eric Wassenaar.
|
||
Improve logging to show ctladdr on to= logging; this tells you
|
||
what uid/gid processes ran as.
|
||
Fix a problem that caused error messages to be discarded if
|
||
the sender address was unparseable for some reason;
|
||
this was supposed to fall back to the "return to
|
||
postmaster" case.
|
||
Improve aliaswait backoff algorithm.
|
||
Portability patches for Linux (8.6.3 required another header
|
||
file) (from Karl London) and SCO UNIX.
|
||
CONFIG: patch prog mailer to not strip host name off of envelope
|
||
addresses (so that it matches local again). From
|
||
Christopher Davis.
|
||
CONFIG: change uucp-dom mailer so that "<>" translates to $n;
|
||
this prevents uux from seeing lines with null names like
|
||
``From Sat Oct 30 14:55:31 1993''. From Motonori
|
||
Nakamura of Kyoto University.
|
||
CONFIG: handle <list:;> syntax correctly. This isn't legal, but
|
||
it shouldn't fail miserably. From Motonori Nakamura.
|
||
|
||
8.6.2/8.6.2 93/10/15
|
||
Put a "successful delivery" message in the transcript for
|
||
addresses that get return-receipts.
|
||
Put a prominent "this is only a warning" message in warning
|
||
messages -- some people don't read carefully enough
|
||
and end up sending the message several times.
|
||
Include reason for temporary failure in the "warning" return
|
||
message. Currently, it just says "cannot send for
|
||
four hours".
|
||
Fix the "Original message received" time generated for
|
||
returntosender messages. It was previously listed as
|
||
the current time. Bug reported by Eric Hagberg of
|
||
Cornell University Medical College.
|
||
If there is an error when writing the body of a message,
|
||
don't send the trailing dot and wait for a response
|
||
in sender SMTP, as this could cause the connection to
|
||
hang up under some bizarre circumstances. From Eric
|
||
Wassenaar.
|
||
Fix some server SMTP synchronization problems caused when
|
||
connections fail during message collection. From
|
||
Eric Wassenaar.
|
||
Fix a problem that can cause srvrsmtp to reject mail if the
|
||
name server is down -- it accepts the RCPT but rejects
|
||
the DATA command. Problem reported by Jim Murray of
|
||
Stratus.
|
||
Fix a problem that can cause core dumps if the config file
|
||
incorrectly resolves to a null hostname. Reported by
|
||
Allan Johannesen of WPI.
|
||
Non-root use of -C flag, dangerous -f flags, and use of -oQ
|
||
by non-root users were not put into
|
||
X-Authentication-Warning:s as intended because the
|
||
config file hadn't set the PrivacyFlags yet. Fix
|
||
from Sven-Ove Westberg of the University of Lulea.
|
||
Under very odd circumstances, the alias file rebuild code
|
||
could get confused as to whether a database was
|
||
open or not.
|
||
Check "vendor code" on the end of V lines -- this is
|
||
intended to provide a hook for vendor-specific
|
||
configuration syntax. (This is a "new feature",
|
||
but I've made an exception to my rule in a belief
|
||
that this is a highly exceptional case.)
|
||
Portability fixes for DG/UX (from Douglas Anderson of NCSC),
|
||
SCO Unix (from Murray Kucherawy), A/UX, and OSF/1
|
||
(from Jon Forrest of UC Berkeley)
|
||
CONFIG: fix ``mailer:host'' form of UUCP relay naming.
|
||
|
||
8.6.1/8.6 93/10/08
|
||
Portability fixes for A/UX and Encore UMAX V.
|
||
Fix error message handling -- if you had a name server down
|
||
causing an error during parsing, that message was never
|
||
propogated to the queue file.
|
||
|
||
8.6/8.6 93/10/05
|
||
Configuration cleanup: make it easier to undo IDENTPROTO in
|
||
conf.h (other systems have the same bug).
|
||
If HASGETDTABLESIZE and _SC_OPEN_MAX are both defined, assume
|
||
getdtablesize() instead of sysconf(); a disturbingly
|
||
large number of systems defined _SC_OPEN_MAX in the
|
||
header files but don't have the syscall.
|
||
Another patch to really truly ignore MX records in getcanonname
|
||
if trymx == FALSE.
|
||
Fix problem that caused the "250 IAA25499 Message accepted for
|
||
delivery" message to be omitted if there was an error
|
||
in the header of the message (e.g., a bad Errors-To:
|
||
line). Pointed out by Michael Corrigan of UCSD.
|
||
Announce name of host we are chatting when we get errors; this
|
||
is an IDA-ism suggested by Christophe Wolfhugel.
|
||
Portability fixes for Alpha OSF/1 (from Anthony Baxter of the
|
||
Australian Artificial Intelligence Institute), SCO Unix
|
||
(from Murray Kucherawy of Hookup Communication Corp.),
|
||
NeXT (from Vince DeMarco and myself), Linux (from
|
||
Karl London <karl@borg.demon.co.uk>), BSDI (from
|
||
Christophe Wolfhugel, and SVR4 on Dell (from Kimmo
|
||
Suominen), AUX 3.0 on Macintosh, and ANSI C compilers.
|
||
Some changes to get around gcc optimizer bugs. From Takahiro
|
||
Kanbe.
|
||
Fix error recovery in queueup if another tf file of the same
|
||
name already exists. Problem stumbled over by Bill
|
||
Wisner of The Well.
|
||
Output YP_MASTER_NAME and YP_LAST_MODIFIED without null bytes.
|
||
Problem noted by Keith McMillan of Ameritech Services.
|
||
Deal with group permissions properly when opening .forward and
|
||
:include: files. This relaxes the 8.1C restrictions
|
||
slightly more. This includes proper setting of groups
|
||
when reading :include: files, allowing you to read some
|
||
files that you should be able to read but have previously
|
||
been denied unless you owned them or they had "other"
|
||
read permission.
|
||
Make certain that $j is in $=w (after the .cf is read) so that
|
||
if the user is forced to override some silly system,
|
||
MX suppression will still work.
|
||
Fix a couple of efficiency problems where newstr was double-
|
||
calling expensive routines. In at least one case, it
|
||
wasn't guaranteed that they would always return the
|
||
same result. Problem noted by Christophe Wolfhugel.
|
||
Fix null pointer dereference in putoutmsg -- only on an error
|
||
condition from a non-SMTP mailer. From Motonori
|
||
Nakamura.
|
||
Macro expand "C" line class definitions before scanning so that
|
||
"CX $Z" works.
|
||
Fix problem that caused error message to be sent while still
|
||
trying to send the original message if the connection
|
||
is closed during a DATA command after getting an error
|
||
on an RCPT command (pretty obscure). Problem reported
|
||
by John Myers of CMU.
|
||
Fix reply to NOOP to be 250 instead of 200 -- this is a long
|
||
term bug.
|
||
Fix a nasty bug causing core dumps when returning the "warning:
|
||
cannot deliver for N hours -- will keep trying" message;
|
||
it only occurred if you had PostMasterCopy set and
|
||
only on some architectures. Although sendmail would
|
||
keep trying, it would send error messages on each
|
||
queue interval. This is an important fix.
|
||
Allow u and g options to take user and group names respectively.
|
||
Don't do a chdir into the queue directory in -bt mode to make
|
||
ruleset testing a bit easier.
|
||
Don't allow users to turn off logging (using -oL) on the command
|
||
line -- command line can only raise, not lower, logging
|
||
level.
|
||
Set $u to the original recipient on the SMTP transaction or on
|
||
the command line. This is only done if there is exactly
|
||
one recipient. Technically, this does not meet the
|
||
specs, because it does not guarantee a domain on the
|
||
address.
|
||
Fix a problem that dumped error messages on bad addresses if
|
||
you used the -t flag. Problem noted by Josh Smith of
|
||
Harvey Mudd College.
|
||
Given an address such as ``<foo> <bar>'', auto-quote the first
|
||
``<foo>'' part, giving ``"<foo>" <bar>''. This is to
|
||
avoid the problem of people who use angle brackets in
|
||
their full name information.
|
||
Fix a null pointer dereference if you set option "l", have
|
||
an Errors-To: header in the message, and have Errors-To:
|
||
defined in the config file H lines. From J.R. Oldroyd.
|
||
Put YPCOMPAT on #ifdef NIS instead -- it's one less thing to get
|
||
wrong when compiling. Suggested by Rick McCarty of TI.
|
||
Fix a problem that could pass negative SIZE parameter if the
|
||
df file got lost; this would cause servers to always
|
||
give a temporary failure, making the problem even worse.
|
||
Problem noted by Allan Johannesen of WPI.
|
||
Add "ident" timeout (one of the "r" option selectors) for IDENT
|
||
protocol timeouts (30s default). Requested by Murray
|
||
Kucherawy of HookUp Communication Corp. to handle bogus
|
||
PC TCP/IP implementations.
|
||
Change $w default definition to be just the first component of
|
||
the domain name on config level 5. The $j macro defaults
|
||
to the FQDN; $m remains as before. This lets well-behaved
|
||
config files use any of the short, long, or subdomain
|
||
names.
|
||
Add makesendmail script in src to try to automate multi-architecture
|
||
builds. I know, this is sub-optimal, but it is still
|
||
helpful.
|
||
Fix very obscure race condition that can cause a queue run to
|
||
get a queue file for an already completed job. This
|
||
problem has existed for years. Problem noted by the
|
||
long suffering Allan Johannesen of WPI.
|
||
Fix a problem that caused the raw sender name to be passed to
|
||
udbsender instead of the canonified name -- this caused
|
||
it to sometimes miss records that it should have found.
|
||
Relax check of name on HELO packet so that a program using -bs
|
||
that claims to be itself works properly.
|
||
Restore rewriting of $: part of address through 2, R, 4 in
|
||
buildaddr -- this requires passing a lot of flags to get
|
||
it right. Unlike old versions, this ONLY rewrites
|
||
recipient addresses, not sender addresses.
|
||
Fix a bug that caused core dumps in config files that cannot
|
||
resolve /file/name style addresses. Fix from Jonathan
|
||
Kamens of OpenVision Technologies.
|
||
Fix problem with fcntl locking that can cause error returns to
|
||
be lost if the lock is lost; this required fully
|
||
queueing everything, dropping the envelope (so errors
|
||
would get returned), and then re-reading the queue from
|
||
scratch.
|
||
Fix a problem that caused aliases that redefine an otherwise
|
||
true address to still send to the original address
|
||
if and only if the alias failed in certain bizarre
|
||
ways (e.g, if they pointed at a list:; syntax address).
|
||
Problem pointed out by Jonathan Kamens.
|
||
Remove support for frozen configuration files. They caused
|
||
more trouble than it was worth.
|
||
Fix problem that can cause error messages to get ignored when
|
||
using both -odb and -t flags. Problem noted by Rob
|
||
McNicholas at U.C. Berkeley.
|
||
Include all "normal" variations on hostname in $=w. For example,
|
||
if the host name is vangogh.cs.berkeley.edu, $=w will
|
||
contain vangogh, vangogh.cs, and vangogh.cs.berkeley.edu.
|
||
Add "restrictqrun" privacy flag -- without this, anyone can run
|
||
the queue.
|
||
Reset SmtpPhase global on initial connection creation so that
|
||
messages don't come out with stale information.
|
||
Pass an "ext" argument to lockfile so that error/log messages
|
||
will properly reflect the true filename being locked.
|
||
Put all [...] address forms into $=w -- this eliminates the need
|
||
for MAXIPADDR in conf.h. Suggested by John Gardiner
|
||
Myers of CMU.
|
||
Fix a bug that can cause qf files to be left around even after
|
||
an SMTP RSET command. Problem and fix from Michael
|
||
Corrigan.
|
||
Don't send a PostMasterCopy to errors when the Precedence: is
|
||
negative. Error reports still go to the envelope
|
||
sender address.
|
||
Add LA_SHORT for load averages.
|
||
Lock sendmail.st file when posting statistics.
|
||
Add "SendBufSize" and "RcvBufSize" suboptions to "O" option to
|
||
set the size of the TCP send and receive buffers; if you
|
||
run over a slow slip line you may need to set these down
|
||
(although it would be better to fix the SLIP implementation
|
||
so that it's not necessary to recompile every program
|
||
that does bulk data transfer).
|
||
Allow null defaults on $( ... $) lookups. Problem reported by
|
||
Amir Plivatsky.
|
||
Diagnose crufty S and V config lines. This resulted from an
|
||
observation that some people were using the SITE macro
|
||
without the SITECONFIG macro first, which was causing
|
||
bogus config files that were not caught.
|
||
Fix makemap -f flag to turn off case folding (it was turning it
|
||
on instead). THIS IS A USER VISIBLE CHANGE!!!
|
||
Fix a problem that caused multiple error messages to be sent if
|
||
you used "sendmail -t -oem -odb", your system uses fcntl
|
||
locking, and one of the recipient addresses is unknown.
|
||
Reset uid earlier in include() so that recursive .forwards or
|
||
:include:s don't use the wrong uid.
|
||
If file descriptor 0, 1, or 2 was closed when sendmail was
|
||
called, the code to recover the descriptor was broken.
|
||
This sometimes (only sometimes) caused problems with the
|
||
alias file. Fix from Motonori Nakamura.
|
||
Fix a problem that caused aliaswait to go into infinite recursion
|
||
if the @:@ metasymbol wasn't found in the alias file.
|
||
Improve error message on newaliases if database files cannot be
|
||
opened or if running with no database format defined.
|
||
Do a better estimation of the size of error messages when NoReturn
|
||
is set. Problem noted by P{r (Pell) Emanuelsson.
|
||
Fix a problem causing the "c" option (don't connect to expensive
|
||
mailers) to be ignored in SMTP. Problem noted and the
|
||
solution suggested by Robert Elz of The University of
|
||
Melbourne.
|
||
Improve connection caching algorithm by passing "[host]" to
|
||
hostsignature, which strips the square brackets and
|
||
returns the real name. This allows mailertable entries
|
||
to match regular entries.
|
||
Re-enable Return-Receipt-To: -- people seem to want this stupid
|
||
feature, even if it doesn't work right.
|
||
Catch and log attempts to try the "wiz" command in server SMTP.
|
||
This also ups the log level from LOG_NOTICE to LOG_CRIT.
|
||
Be more generous at assigning $z to the home directory -- do this
|
||
for programs that are specified through a .forward file.
|
||
Fix from Andrew Chang of Sun Microsystems.
|
||
Always save a fatal error message in preference to a non-fatal
|
||
error message so that the "subject" line of return
|
||
messages is the best possible.
|
||
CONFIG: reduce the number of quotes needed to quote configuration
|
||
parameters with commas: two quotes should work now, e.g.,
|
||
define(ALIAS_FILE, ``/etc/aliases,/etc/aliases.local'').
|
||
CONFIG: class $=Z is a set of UUCP hosts that use uucp-dom
|
||
connections (domain-ized UUCP).
|
||
CONFIG: fix bug in default maps (-o must be before database file
|
||
name). Pointed out by Christophe Wolfhugel.
|
||
CONFIG: add FEATURE(nodns) to state that we are not relying on
|
||
DNS. This would presumably be used in UUCP islands.
|
||
CONFIG: add OSTYPE(nextstep) and OSTYPE(linux).
|
||
CONFIG: log $u in Received: line. This is in technical violation
|
||
of the standards, since it doesn't guarantee a domain
|
||
on the address.
|
||
CONFIG: don't assume "m" in local mailer flags -- this means that
|
||
if you redefine LOCAL_MAILER_FLAGS you will have to include
|
||
the "m" flag should you want it. Apparently some Solaris 2.2
|
||
installations can't handle multiple local recipients.
|
||
Problem noted by Josh Smith.
|
||
CONFIG: add confDOMAIN_NAME to set $j (if undefined, $j defaults).
|
||
CONFIG: change default version level from 4 to 5.
|
||
CONFIG: add FEATURE(nullclient) to create a config file that
|
||
forwards all mail to a hub without ever looking at the
|
||
addresses in any detail.
|
||
CONFIG: properly strip mailer: information off of relays when
|
||
used to change .BITNET form into %-hack form.
|
||
CONFIG: fix a problem that caused infinite loops if presented
|
||
with an address such as "!foo".
|
||
CONFIG: check for self literal (e.g., [128.32.131.12]) even if
|
||
the reverse "PTR" mapping is broken. There's a better
|
||
way to do this, but the change is fairly major and I
|
||
want to hold it for another release. Problem noted by
|
||
Bret Marquis.
|
||
|
||
8.5/8.5 93/07/23
|
||
Serious bug: if you used a command line recipient that was unknown
|
||
sendmail would not send a return message (it was treating
|
||
everything as though it had an SMTP-style client that
|
||
would do the return itself). Problem noted by Josh Smith.
|
||
Change "trymx" option in getcanonname() to ignore all MX data,
|
||
even during a T_ANY query. This actually didn't break
|
||
anything, because the only time you called getcanonname
|
||
with !trymx was if you already knew there were no MX
|
||
records, but it is somewhat cleaner. From Motonori
|
||
Nakamura.
|
||
Don't call getcanonname from getmxrr if you already know there
|
||
are no DNS records matching the name.
|
||
Fix a problem causing error messages to always include "The
|
||
original message was received ... from localhost".
|
||
The correct original host information is now included.
|
||
Previous change to cf/sh/makeinfo.sh doesn't port to Ultrix (their
|
||
version of "test" doesn't have the -x flag). Change it
|
||
to use -f instead. From John Myers.
|
||
CONFIG: 8.4 mistakenly set the default SMTP-style mailer to
|
||
esmtp -- it should be smtp.
|
||
CONFIG: send all relayed mail using confRELAY_MAILER (defaults
|
||
to "relay" (a variant of "smtp") if MAILER(smtp) is used,
|
||
else "suucp" if MAILER(uucp) is used, else "unknown");
|
||
this cleans up the configs somewhat. This fixes a serious
|
||
problem that caused route-addrs to get mistaken as relays,
|
||
pointed out by John Myers. WARNING: this also causes
|
||
the default on SMART_HOST to change from "suucp" to
|
||
"relay" if you have MAILER(smtp) specified.
|
||
|
||
8.4/8.4 93/07/22
|
||
Add option `w'. If you receive a message that comes to you because
|
||
you are the best (lowest preference) target of an MX, and
|
||
you haven't explicitly recognized the source MX host in
|
||
your .cf file, this option will cause you to try the target
|
||
host directly (as if there were no MX for it at all). If
|
||
`w' is not set, this case is a configuration error.
|
||
Beware: if `w' is set, senders may get bogus errors like
|
||
"message timed out" or "host unknown" for problems that
|
||
are really configuration errors. This option is
|
||
disrecommended, provided only for compatibility with
|
||
UIUC sendmail.
|
||
Fix a problem that caused the incoming socket to be left open
|
||
when sendmail forks after the DATA command. This caused
|
||
calling systems to wait in FIN_WAIT_2 state until the
|
||
entire list was processed and the child closed -- a
|
||
potentially prodigious amount of time. Problem noted
|
||
by Neil Rickert.
|
||
Fix problem (created in 6.64) that caused mail sent to multiple
|
||
addresses, one of which was a bad address, to completely
|
||
suppress the sending of the message. This changes
|
||
handling of EF_FATALERRS somewhat, and adds an
|
||
EF_GLOBALERRS flag. This also fixes a potential problem
|
||
with duplicate error messages if there is a syntax error
|
||
in the header of a message that isn't noticed until late
|
||
in processing. Original problem pointed out by Josh Smith
|
||
of Harvey Mudd College. This release includes quite a bit
|
||
of dickering with error handling (see below).
|
||
Back out SMTP transaction if MAIL gets nested 501 error. This
|
||
will only hurt already-broken software and should help
|
||
humans.
|
||
Fix a problem that broke aliases when neither NDBM nor NEWDB were
|
||
compiled in. It would never read the alias file.
|
||
Repair unbalanced `)' and `>' (the "open" versions are already
|
||
repaired).
|
||
Logging of "done" in dropenvelope() was incorrect: it would
|
||
log this even when the queue file still existed. Change
|
||
this to only log "done" (at log level 11) when the
|
||
queue file is actually removed. From John Myers.
|
||
Log "lost connection" in server SMTP at log level 20 if there
|
||
is no pending transaction. Some senders just close the
|
||
connection rather than sending QUIT.
|
||
Fix a bug causing getmxrr to add a dot to the end of unqualified
|
||
domains that do not have MX records -- this would cause
|
||
the subsequent host name lookup to fail. The problem
|
||
only occurred if you had FEATURE(nocanonify) set.
|
||
Problem noted by Rick McCarty of Texas Instruments.
|
||
Fix invocation of setvbuf when passed a -X flag -- I had
|
||
unwittingly used an ANSI C extension, and this caused
|
||
core dumps on some machines.
|
||
Diagnose self-destructive alias loops on RCPT as well as EXPN.
|
||
Previously it just gave an empty send queue, which
|
||
then gave either "Need RCPT (recipient)" at the DATA
|
||
(confusing, since you had given an RCPT command which
|
||
returned 250) or just dropped the email, depending on
|
||
whether you were running VERBose mode. Now it usually
|
||
diagnoses this case as "aliasing/forwarding loop broken".
|
||
Unfortunately, it still doesn't adequately diagnose
|
||
some true error conditions.
|
||
Add internal concept of "warning messages" using 6xx codes.
|
||
These are not reported only to Postmaster. Unbalanced
|
||
parens, brackets, and quotes are printed as 653 codes.
|
||
They are always mapped to 5xx codes before use in SMTP.
|
||
Clean up error messages to tell both the actual address that
|
||
failed and the alias they arose from. This makes it
|
||
somewhat easier to diagnose problems. Difficulty noted
|
||
by Motonori Nakamura.
|
||
Fix a problem that inappropriately added a ctladdr to addresses
|
||
that shouldn't have had one during a queue run. This
|
||
caused error messages to be handled differently during
|
||
a queue run than a direct run.
|
||
Don't print the qf name and line number if you get errors during
|
||
the direct run of the queue from srvrsmtp -- this was
|
||
just extra stuff for users to crawl through.
|
||
Put command line flags on second line of pid file so you can
|
||
auto-restart the daemon with all appropriate arguments.
|
||
Use "kill `head -1 /etc/sendmail.pid`" to stop the
|
||
daemon, and "eval `tail -1 /etc/sendmail.pid`" to
|
||
restart it.
|
||
Remove the ``setuid(getuid())'' in main -- this caused the
|
||
IDENT daemon to screw up. This required that I change
|
||
HASSETEUID to HASSETREUID and complicate the mode
|
||
changing somewhat because both Ultrix and SunOS seem
|
||
to have a bug causing seteuid() to set the saved uid
|
||
as well as the effective. The program test/t_setreuid.c
|
||
will test to see if your implementation of setreuid(2)
|
||
is appropriately functional.
|
||
The FallBackMX (option V) handling failed to properly identify
|
||
fallback to yourself -- most of the code was there,
|
||
but it wasn't being enabled. Problem noted by Murray
|
||
Kucherawy of the University of Waterloo.
|
||
Change :include: open timeout from ETIMEDOUT to an internal
|
||
code EOPENTIMEOUT; this avoids adding "during SmtpPhase
|
||
with CurHostName" in error messages, which can be
|
||
confusing. Reported by Jonathan Kamens of OpenVision
|
||
Technologies.
|
||
Back out setpgrp (setpgid on POSIX systems) call to reset the
|
||
process group id. The original fix was to get around
|
||
some problems with recalcitrant MUAs, but it breaks
|
||
any call from a shell that creates a process group id
|
||
different from the process id. I could try to fix
|
||
this by diddling the tty owner (using tcsetpgrp or
|
||
equivalent) but this is too likely to break other
|
||
things.
|
||
Portability changes:
|
||
Support -M as equivalent to -oM on Ultrix -- apparently
|
||
DECnet calls sendmail with -MrDECnet -Ms<HOST> -bs
|
||
instead of using standard flags. Oh joy. This
|
||
behaviour reported by Jon Giltner of University
|
||
of Colorado.
|
||
SGI IRIX -- this includes several changes that should
|
||
help other strict ANSI compilers.
|
||
SCO Unix -- from Murray Kucherawy of HookUp Communication
|
||
Corporation.
|
||
Solaris running the Sun C compiler (which despite the
|
||
documentation apparently doesn't define
|
||
__STDC__ by default).
|
||
ConvexOS from Eric Schnoebelen of Convex.
|
||
Sony NEWS workstations and Omron LUNA workstations from
|
||
Motonori Nakamura.
|
||
CONFIG: add confTRY_NULL_MX_LIST to set option `w'.
|
||
CONFIG: delete `C' and `e' from default SMTP mailers flags;
|
||
several people have made a good argument that this
|
||
creates more problems than it solves (although this
|
||
may prove painful in the short run).
|
||
CONFIG: generalize all the relays to accept a "mailer:host"
|
||
format.
|
||
CONFIG: move local processing in ruleset 0 into a new ruleset
|
||
98 (8 on old sendmail). Domain literal [a.b.c.d]
|
||
addresses are also passed through this ruleset.
|
||
CONFIG: if neither SMART_HOST nor MAILER(smtp) were defined,
|
||
internet-style addresses would "fall off the end" of
|
||
ruleset zero and be interpreted as local -- however,
|
||
the angle brackets confused the recursive call.
|
||
These are now diagnosed as "Unrecognized host name".
|
||
CONFIG: USENET rules weren't included in S0 because of a mistaken
|
||
ifdef(`_MAILER_USENET_') instead of
|
||
ifdef(`_MAILER_usenet_'). Problem found by Rein Tollevik
|
||
of SINTEF RUNIT, Oslo.
|
||
CONFIG: move up LOCAL_RULE_0 processing so that it happens very
|
||
early in ruleset 0; this allows .mc authors to bypass
|
||
things like the "short circuit" code for local addresses.
|
||
Prompted by a comment by Bill Wisner of The Well.
|
||
CONFIG: add confSMTP_MAILER to define the mailer used (smtp or
|
||
esmtp) to send SMTP mail. This allows you to default
|
||
to esmtp but use a mailertable or other override to
|
||
deal with broken servers. This logic was pointed out
|
||
to me by Bill Wisner. Ditto for confLOCAL_MAILER.
|
||
Changes to cf/sh/makeinfo.sh to make it portable to SVR4
|
||
environments. Ugly as sin.
|
||
|
||
8.3/8.3 93/07/13
|
||
Fix setuid problems introduced in 8.2 that caused messages
|
||
like "Cannot create qfXXXXXX: Invalid argument"
|
||
or "Cannot reopen dfXXXXXX: Permission denied". This
|
||
involved a new compile flag "HASSETEUID" that takes
|
||
the place of the old _POSIX_SAVED_IDS -- it turns out
|
||
that the POSIX interface is broken enough to break
|
||
some systems badly. This includes some fixes for
|
||
HP-UX. Also fixes problems where the real uid is
|
||
not reset properly on startup (from Neil Rickert).
|
||
Fix a problem that caused timed out messages to not report the
|
||
addresses that timed out. Error messages are also more
|
||
"user friendly".
|
||
Drop required bandwidth on connections from 64 bytes/sec to
|
||
16 bytes/sec.
|
||
Further Solaris portability changes -- doesn't require the BSD
|
||
compatibility library. This also adds a new
|
||
"HASGETDTABLESIZE" compile flag which can be used if
|
||
you want to use getdtablesize(2) instead of sysconf(2).
|
||
These are loosely based on changes from David Meyer at
|
||
University of Oregon. This now seems to work, at least
|
||
for quick test cases.
|
||
Fix a problem that can cause duplicate error messages to be
|
||
sent if you are in SMTP, you send to multiple addresses,
|
||
and at least one of those addresses is good and points
|
||
to an account that has a .forward file (whew!).
|
||
Fix a problem causing messages to be discarded if checkcompat()
|
||
returned EX_TEMPFAIL (because it didn't properly mark
|
||
the "to" address). Problem noted by John Myers.
|
||
Fix dfopen to return NULL if the open failed; I was depending
|
||
on fdopen(-1) returning NULL, which isn't the case. This
|
||
isn't serious, but does result in weird error diagnoses.
|
||
From Michael Corrigan.
|
||
CONFIG: add UUCP_MAX_SIZE M4 macro to set the maximum size of
|
||
messages sent through UUCP-family mailers. Suggested
|
||
by Bill Wisner of The Well.
|
||
CONFIG: if both MAILER(uucp) and MAILER(smtp) are specified,
|
||
include a "uucp-dom" mailer that uses domain-style
|
||
addressing. Suggested by Bill Wisner.
|
||
CONFIG: Add LOCAL_SHELL_FLAGS and LOCAL_SHELL_ARGS to match
|
||
LOCAL_MAILER_FLAGS and LOCAL_MAILER_ARGS. Suggested by
|
||
Christophe Wolfhugel.
|
||
CONFIG: Add OSTYPE(aix3). From Christophe Wolfhugel.
|
||
|
||
8.2/8.2 93/07/11
|
||
Don't drop out on config file parse errors in -bt mode.
|
||
On older configuration files, assume option "l" (use Errors-To
|
||
header) for back compatibility. NOTE: this DOES NOT
|
||
imply an endorsement of the Errors-To: header in any way.
|
||
Accept -x flag on AIX-3 as well as OSF/1. Why, why, why???
|
||
Don't log errors on EHLO -- it isn't a "real" error for an old
|
||
SMTP server to give an error on this command, and
|
||
logging it in the transcript can be confusing. Fix
|
||
from Bill Wisner.
|
||
IRIX compatibility changes provided by Dan Rich
|
||
<drich@sandman.lerc.nasa.gov>.
|
||
Solaris 2 compatibility changes. Provided by Bob Cunningham
|
||
<bob@kahala.soest.hawaii.edu>, John Oleynick
|
||
<juo@klinzhai.rutgers.edu>
|
||
Debugging: -d17 was overloaded (hostsignature and usersmtp.c);
|
||
move usersmtp (smtpinit and smtpmailfrom) to -d18 to
|
||
match the other flags in that file.
|
||
Flush transcript before fork in mailfile(). From Eric Wassenaar.
|
||
Save h_errno in mci struct and improve error message display.
|
||
Changes from Eric Wassenaar.
|
||
Open /dev/null for the transcript if the create of the xf file
|
||
failed; this avoids at least one possible null pointer
|
||
reference in very weird cases. From Eric Wassenaar.
|
||
Clean up statistics gathering; it was over-reporting because of
|
||
forks. From Eric Wassenaar.
|
||
Fix problem that causes old Return-Path: line to override new
|
||
Return-Path: line (conf.c needs H_FORCE to avoid
|
||
re-using old value). From Motonori Nakamura.
|
||
Fix broken -m flag in K definition -- even if -m (match only)
|
||
was specified, it would still replace the key with the
|
||
value. Noted by Rick McCarty of Texas Instruments.
|
||
If the name server timed out over several days, no "timed out"
|
||
message would ever be sent back. The timeout code
|
||
has been moved from markfailure() to dropenvelope()
|
||
so that all such failures should be diagnosted. Pointed
|
||
out by Christophe Wolfhugel and others.
|
||
Relax safefile() constraints: directories in an include or
|
||
forward path must be readable by self if the controlling
|
||
user owns the entry, readable by all otherwise (e.g.,
|
||
when reading your .forward file, you have to own and
|
||
have X permssion in it; everyone needs X permission in
|
||
the root and directories leading up to your home);
|
||
include files must be readable by anyone, but need not
|
||
be owned by you.
|
||
If _POSIX_SAVED_IDS is defined, setuid to the owner before
|
||
reading a .forward file; this gets around some problems
|
||
on NFS mounts if root permission is not exported and
|
||
the user's home directory isn't x'able.
|
||
Additional NeXT portability enhancements from Axel Zinser.
|
||
Additional HP-UX portability enhancements from Brian Bullen.
|
||
Add a timeout around SMTP message writes; this assumes you can
|
||
get throughput of at least 64 bytes/second. Note that
|
||
this does not impact the "datafinal" default, which
|
||
is separate; this is just intended to work around
|
||
network clogs that will occur before the final dot
|
||
is sent. From Eric Wassenaar.
|
||
Change map code to set the "include null" flag adaptively --
|
||
it initially tries both, but if it finds anything
|
||
matching without a null it never tries again with a
|
||
null and vice versa. If -N is specified, it never
|
||
tries without the null and creates new maps with a
|
||
null byte. If -O is specified, it never tries with
|
||
the null (for efficiency). If -N and -O are specified,
|
||
you get -NO (get it?) lookup at all, so this would
|
||
be a bad idea. If you don't specify either -N or -O,
|
||
it adapts.
|
||
Fix recognition of "same from address" so that MH submissions
|
||
will insert the appropriate full name information;
|
||
this used to work and got broken somewhere along the
|
||
way.
|
||
Some changes to eliminate some unnecessary SYSERRs in the
|
||
log. For example, if you lost a connection, don't
|
||
bother reporting that fact on the connection you lost.
|
||
Add some "extended debugging" flags to try to track down
|
||
why we get occassional problems with file descriptor
|
||
one being closed when execing a mailer; it seems to
|
||
only happen when there has been another error in the
|
||
same transaction. This requires XDEBUG, defined
|
||
by default in conf.h.
|
||
Add "-X filename" command line flag, which logs both sides of
|
||
all SMTP transactions. This is intended ONLY for
|
||
debugging bad implementations of other mailers; start
|
||
it up, send a message from a mailer that is failing,
|
||
and then kill it off and examine the indicated log.
|
||
This output is not intended to be particularly human
|
||
readable. This also adds the HASSETVBUF compile
|
||
flag, defaulted on if your compiler defines __STDC__.
|
||
CONFIG: change SMART_HOST to override an SMTP mailer. If you
|
||
have a local net that should get direct connects, you
|
||
will need to use LOCAL_NET_CONFIG to catch these hosts.
|
||
See cf/README for an example.
|
||
CONFIG: add LOCAL_MAILER_ARGS (default: `mail -d $u') to handle
|
||
sites that don't use the -d flag.
|
||
CONFIG: hide recipient addresses as well as sender addresses
|
||
behind $M if FEATURE(allmasquerade) is specified; this
|
||
has been requested by several people, but can break
|
||
local aliases. For example, if you mail to "localalias"
|
||
this will be rewritten as "localalias@masqueradehost";
|
||
although initial delivery will work, replies will be
|
||
broken. Use it sparingly.
|
||
CONFIG: add FEATURE(domaintable). This maps unqualified domains
|
||
to qualified domains in headers. I believe this is
|
||
largely equivalent to the IDA feature of the same name.
|
||
CONFIG: use $U as UUCP name instead of $k. This permits you
|
||
to override the "system name" as your UUCP name --
|
||
in particular, to use domain-ized UUCP names. From
|
||
Bill Wisner of The Well.
|
||
CONFIG: create new mailer "esmtp" that always tries EHLO
|
||
first. This is currently unused in the config files,
|
||
but could be used in a mailertable entry.
|
||
|
||
8.1C/8.1B 93/06/27
|
||
Serious security bug fix: it was possible to read any file on
|
||
the system, regardless of ownership and permissions.
|
||
If a subroutine returns a fully qualified address, return it
|
||
immediately instead of feeding it back into rewriting.
|
||
This fixes a problem with mailertable lookups.
|
||
CONFIG: fix some M4 frotz (concat => CONCAT)
|
||
|
||
8.1B/8.1A 93/06/12
|
||
Serious bug fix: pattern matching backup algorithm stepped by
|
||
two tokens in classes instead of one. Found by Claus
|
||
Assmann at University of Kiel, Germany.
|
||
|
||
8.1A/8.1A 93/06/08
|
||
Another mailertable fix....
|
||
|
||
8.1/8.1 93/06/07
|
||
4.4BSD freeze. No semantic changes.
|
||
|
||
6.65/6.34 93/06/06
|
||
Fix some lintish problems.
|
||
Fix some cases where server SMTP behaved poorly when handed bogus
|
||
input, pointed out by Eric Wassenaar.
|
||
CONFIG: fix some more (sigh) mailertable bugs -- thanks to
|
||
Motonori Nakamura of Kyoto University (again).
|
||
|
||
6.64/6.33 93/06/05
|
||
Don't send 050 (-v) information after the 250 response to a QUIT
|
||
command in srvrsmtp -- clients usually close the connection
|
||
at this point, and it causes bogus error messages.
|
||
Don't send messages that have errors on input (such as unbalanced
|
||
parentheses) during SMTP transactions, since a return
|
||
message has (probably) already been sent.
|
||
Give better diagnostics on timeouts during network reads, including
|
||
information similar to the SMTP phase.
|
||
Fix bug that caused SMTP messages to deliver synchronously; this
|
||
happened after the DATA 250, and hence caused reading the
|
||
next command to be delayed.
|
||
Ignore Errors-To: header unless 'l' (lower case el) header is
|
||
specified. The Errors-To: header violates RFC 1123.
|
||
Errors-To: was only needed to take the place of the
|
||
envelope sender in the days when most Unix mailers
|
||
didn't understand about the two kinds of senders.
|
||
Don't send warning messages in response to automatically generated
|
||
messages (that is, those From:<>).
|
||
CONFIG: fix some rather stupid typos in the mailertable code
|
||
pointed out by Motonori Nakamura of Kyoto University.
|
||
CONFIG: add confUSE_ERRORS_TO configuration option.
|
||
CONFIG: if ALWAYS_ADD_DOMAIN is selected, try to use $M
|
||
(masquerade name) instead of $j.
|
||
CONFIG: don't add dots to relay names (added in 6.29); it breaks
|
||
several things, and can be simulated by dot terminating
|
||
the names of relays. For example, use:
|
||
DBbit.net.relay.
|
||
(note the trailing dot).
|
||
|
||
6.63/6.32 93/06/01
|
||
Fix prototypes to eliminate chars in argument lists -- some
|
||
compilers are pissy about this.
|
||
Log protocol ($r) and body type if set so we can determine if
|
||
the adaptive algorithms are working.
|
||
Pessimize on locking of database files (particularly for NEWDB
|
||
databases) during opens. There were problems with
|
||
processes opening the file while it was rebuilt; since
|
||
NEWDB caches heavily, the reader opened an empty file,
|
||
which is an error. If your system has the ability to
|
||
lock atomically on open, this works properly; otherwise,
|
||
there are race conditions.
|
||
Check mod time on .pag file instead of .dir in NDBM aliases
|
||
because the .dir file doesn't get updated for small
|
||
alias files. From John Gardiner Myers of CMU.
|
||
More Solaris portability -- it now compiles on Solaris, but
|
||
hangs up in gethostbyname().
|
||
Move setting of RES_DEBUG flag before first myhostname() call
|
||
so we can see name server traffic on that call.
|
||
Fsync() queue files.
|
||
Fix a problem that causes -bi to try to rebuild maps other than
|
||
the alias file(s).
|
||
Fix a problem that caused udb to reject entries from any but
|
||
the first database listed.
|
||
Rearrange doc subdirectory for 4.4BSD release tape.
|
||
CONFIG: put $r into the Received line. This was an oversight.
|
||
CONFIG: fix typo (call to ruleset 99 should have been rulset 90).
|
||
CONFIG: move "auxiliary" subroutines to be in ruleset 90-99
|
||
range -- in the long run, single digit rulesets may
|
||
become reserved for builtin use by sendmail.
|
||
CONFIG: fix major problem that causes host aliases (that is,
|
||
anything in $=w != $j) to not be recognized. This has
|
||
been around since 6.30.
|
||
|
||
6.62/6.31 93/05/28
|
||
BETA RELEASE
|
||
Fix recursive syserr (if there is an error printing a syserr
|
||
message). This makes the code much less eager to consider
|
||
a write error as serious. This also includes some
|
||
heuristics to be clever about closed connections.
|
||
Lock NEWDB files during gets. This requires version 1.5 or later
|
||
of the db library. If you have an older version, you
|
||
can use -DOLD_NEWDB. This will go away in a few weeks.
|
||
Fix problem causing aliases that use host maps to get overwritten.
|
||
Do appropriate byte swapping on port numbers in ident protocol
|
||
code. Fix from Allan Johannesen of WPI.
|
||
Defer opening of map files to the same time as alias files so that
|
||
the daemon will tend to pick up new versions more promptly.
|
||
Prototype a bunch more functions.
|
||
Some Solaris 2.1 changes (still doesn't link though).
|
||
Try to simplify Makefiles by including more subordinate #defines
|
||
in conf.h (based on OS type).
|
||
CONFIG: check for domains if FEATURE(mailertable) is defined.
|
||
For example, if the host name is "knecht.cs.berkeley.edu"
|
||
it will search the following mailertable keys:
|
||
knecht.cs.berkeley.edu
|
||
.cs.berkeley.edu
|
||
.berkeley.edu
|
||
.edu
|
||
This could be used to replace the special relays for bitnet
|
||
and similar nets.
|
||
|
||
6.61/6.30 93/05/24
|
||
Fix problem that prevented appending dots on canonified host
|
||
names. This breaks tons of config files -- very
|
||
important fix.
|
||
Fix improper pointer dereference in response to HELO command.
|
||
Fix core dump if debugging set in map_rewrite.
|
||
CONFIG: add FEATURE(always_add_domain) to always attach the
|
||
local domain (only impacts local mail).
|
||
CONFIG: try to avoid turning names into $j -- although
|
||
technically a host can only have one "canonical name",
|
||
it seems to be common practice to have several.
|
||
|
||
6.60/6.29 93/05/22
|
||
Major change: merge alias databases with maps. This expands and
|
||
changes the map class interface but fixes a bunch of bugs.
|
||
The important user-visible change is that the file name
|
||
in a K line now does not include the ".db" extension; this
|
||
is added automatically. Also, the -d (NIS domain) flag is
|
||
missing from the K config line; use @domain instead.
|
||
When compiling, the *_MAP names are gone -- just compile
|
||
in NDBM, NEWDB, and/or NIS support.
|
||
Announce mailer/host/user triple on -bv flag -- from Brian
|
||
Bullen of Stirling University.
|
||
Don't send more than one line in response to HELO -- it confuses
|
||
Pony Express, which then behaves very badly. However,
|
||
this change does send two line 220 greetings, with the
|
||
second line reading "ESMTP spoken here". The usersmtp
|
||
module recognizes this and goes into ESMTP mode regardless
|
||
of the setting of the "a" mailer flag. Thus, "a" means
|
||
"always try EHLO".
|
||
AIX portability changes (thanks to Christophe Wolfhugel of
|
||
Herve Schauer Consultants (Paris) for providing me with
|
||
an INSA account for this purpose). Lightly tested. Use
|
||
-D_AIX3. This probably breaks compatibility with some
|
||
older systems (e.g., 4.2bsd) but still works on SunOS
|
||
4.1.2, Ultrix 4.2A, HP-UX 8.07, OSF/1 T1.3, and AIX 3.2.3.
|
||
Fix a problem causing an error message loop if the output channel
|
||
is hosed.
|
||
Add the Makefiles that I use for various environments -- some are
|
||
Berkeley make versions and some are old make versions.
|
||
My makefile for the NeXT box has gotten lost, alas!
|
||
PRALIASES: support for printing NEWDB databases. From
|
||
Michael J. Corrigan of U.C. San Diego.
|
||
CONFIG: don't pass pseudo-domains to $[ ... $] (if you have
|
||
a wildcard MX it can have weird results). From
|
||
Christophe Wolfhugel.
|
||
CONFIG: dot terminate relay hostnames in S0. From Christophe
|
||
Wolfhugel.
|
||
|
||
6.59/6.28 93/05/13
|
||
Log version with SMTP daemon startup message.
|
||
Adjust setproctitle to work on NetBSD and BSD/386.
|
||
Fix null pointer reference in MX fallback code.
|
||
A bunch of minor fixes from Eric Wassenaar:
|
||
If deliver cannot execv the mailer, return EX_OSERR
|
||
instead of EX_TEMPFAIL (to give better
|
||
error messages).
|
||
Consistently malloc e_message.
|
||
Catch degenerate case of calling returntosender()
|
||
with an empty returnq.
|
||
MIME reformatting.
|
||
|
||
6.58/6.28 93/05/13
|
||
Fix bug that can cause incorrect verbose display of user smtp
|
||
messages.
|
||
Disable SMTP VERB command if PRIV_NOEXPN is set (since this
|
||
could reveal the same information.
|
||
Allow failure when reading SMTP greeting message to go on to
|
||
next MX host.
|
||
Add "MIME-Version: 1.0" header if using MIME (this was NOT
|
||
included in RFC 1344, but Bill King of Allan-Bradley
|
||
Company forwarded me email from Nathaniel Borenstein
|
||
claiming that it was an inadvertent omission).
|
||
Don't use Content-Type: X-message-header. According to John
|
||
Myers of CMU, many MIME readers will completely ignore
|
||
the data if they don't recognize it. Instead, just
|
||
add a blank line to make it a legal (empty) message.
|
||
Fix problem causing dots to keep getting appended to cached
|
||
hostnames. This can cause buffer overrun conditions.
|
||
The problem was found by Erik Forsberg of Retix,
|
||
although I used a different bug fix than he provided.
|
||
Fix parsing of split header/envelope rewriting specs -- from
|
||
Eric Forsberg.
|
||
Fix from Eric Wassenaar to correct To: lists in error messages.
|
||
|
||
6.57/6.28 93/05/11
|
||
Fix minor glitch causing extra ctladdrs to be output to queue
|
||
file. Just an annoyance.
|
||
Cache results of name server canonification lookups to avoid
|
||
backed up queue runs.
|
||
Major rewrite of alias.c: considerable cleanup, plus sample
|
||
(untested) support for NIS aliases. The "A" option
|
||
can now be a comma separated list (or be repeated) --
|
||
that is, you can have multiple alias databases. Each
|
||
database can have the syntax ``class:file''; if no class
|
||
is specified, the "implicit" class is assumed. Implicit
|
||
searches through a list of compiled in types -- hash,
|
||
dbm, nis, and stab. Alias files are searched in the
|
||
order they are listed. For example:
|
||
OAhash:/etc/aliases.local,/etc/aliases
|
||
OAnis:mail.aliases@my.nis.domain
|
||
first searches the hash database /etc/aliases.local,
|
||
then the regular /etc/aliases database, then the NIS
|
||
map "mail.aliases" in the NIS domain "my.nis.domain".
|
||
If in Verbose mode (probably from VERB command) run SMTP job
|
||
in foreground and don't do RCPT optimizations.
|
||
Add udb :mailsender as equivalent to owner- for regular aliases.
|
||
Delete option 8; add option 7 that means the opposite. That is,
|
||
default to 8-bit mode; a special option is needed to
|
||
force sendmail into 7 bit mode.
|
||
Send error messages in encapsulated MIME format.
|
||
New compile flag "NIS" that turns on NIS alias and NIS map
|
||
support.
|
||
Add "j" option to send error messages in MIME (RFC 1341)
|
||
encapsulated message format per RFC 1344. The
|
||
syntax is pretty ugly if you don't have MIME-aware
|
||
user agents.
|
||
Clean up message handling (for display in mailq output).
|
||
New setproctitle implementation for 4.4bsd.
|
||
Create files (such as ~/dead.letter) using mode FileMode (the
|
||
F option value) instead of 0666.
|
||
Fix bug causing output of EXPN command to not be fully qualified.
|
||
This may cause some problems with UUCP addresses that
|
||
will require some config file assistance -- specifically,
|
||
the $: part has to include the host name for this output
|
||
to make sense.
|
||
Fix a problem that sometimes diagnosed errors and still sent the
|
||
message if the header syntax was bad.
|
||
Fix a bug that caused an error message to be emailed when sendmail
|
||
was operating in -bv mode.
|
||
Add "ListenQueueSize" keyword to daemon options option (OO) to
|
||
set the queue size parameter passed to listen(). You
|
||
will normally have to tweak your kernel to up this.
|
||
Strip spaces off of beginning of message-id before logging (in
|
||
case it was folded across lines).
|
||
Tweak compile flags in daemon.c -- there were some cases where
|
||
it wouldn't work without NETINET.
|
||
Change *file* mailer to output all the usual default headers
|
||
(From, Date, Message-Id). It gets used when sending
|
||
back error messages.
|
||
CONFIG: explicitly catch and diagnose list:; syntax in ruleset
|
||
zero -- this is not a valid recipient syntax according
|
||
to RFC 821.
|
||
CONFIG: add confMIME_FORMAT_ERRORS to send error messages in
|
||
MIME format. Defaults to on.
|
||
CONFIG: add SMTP_MAILER_FLAGS and UUCP_MAILER_FLAGS to augment
|
||
the flags for those mailers.
|
||
|
||
6.56/6.27 93/05/01
|
||
Fix problem that causes the fallback mail to postmaster
|
||
(case ESM_POSTMASTER in savemail()) to not look at
|
||
aliases (ugh).
|
||
Some more HPUX tweaking (compile flag hpux => __hpux so it
|
||
still works in ANSI mode).
|
||
Don't try to flock non-regular files when mailing to a file.
|
||
In particular, this was a problem if you tried to
|
||
send to /dev/null.
|
||
Fix a weird bug that can cause senders to be queued as
|
||
recipients if the name server is down when the mail
|
||
is initially sent. This hack just ignores sender
|
||
deletion (essentially, it sets the MeToo flag) if there
|
||
is a TEMPFAIL during processing of the sender address.
|
||
Obscure.
|
||
Fix a dangling else problem -- from Brian Bullen from University
|
||
of Stirling, UK.
|
||
Add the "b" mailer flag to force a blank line on the end of
|
||
messages. Some brilliant versions of /bin/mail insist
|
||
on this but do not add it themselves.
|
||
Add the "g" mailer flag to prevent user SMTP from sending
|
||
"MAIL From:<>". This is only intended to be a
|
||
transitional gesture, and should not be used if at
|
||
all possible. It appears that Berkeley and IDA
|
||
config files have always handled this properly; the
|
||
UK config kit apparently does not.
|
||
Don't lowercase and then capitalize header field names -- leave
|
||
them with original capitalization. Fixes from Bill
|
||
King of Allen-Bradley Company.
|
||
Further cleanup and improved reporting of error messages,
|
||
particularly conditions that cause messages to be
|
||
requeued for future delivery.
|
||
Tweak syslog priorities in some cases.
|
||
CONFIG: clean up route-addr on UUCP addresses.
|
||
|
||
6.55/6.25 93/04/27
|
||
HPUX 8.07 compatibility changes in getla() -- I had to make
|
||
these changes to get it to work at Berkeley, although
|
||
others seem to have been working before (???).
|
||
Various patches to XLA code.
|
||
Fix problem that causes setuid bit on files to be ignored from
|
||
SMTP or in queue runs. Problem noted by Jason Ornstein
|
||
of Under The Wire, Inc.
|
||
Fix problem that can cause CNAMEs to be ignored.
|
||
Generalize getmxrr to match local host in $=w instead of a
|
||
single name passed in.
|
||
Some cleanup from Eric Wassenaar:
|
||
Use FileMailer instead of ProgMailer in two places.
|
||
Eliminate duplicate 8th-bit stripping in commaize.
|
||
Fix a problem with mis-parsing of backslash escapes
|
||
under some circumstances.
|
||
NIS map fix (was always including trailing null character)
|
||
from Mike Glendinning of Ingres UK.
|
||
Add "a" mailer flag to try using ESMTP. It tries the EHLO
|
||
command and if that fails falls back to regular SMTP.
|
||
Also parses EHLO option keywords. If host supports
|
||
SIZE extension, this is added to the MAIL FROM:
|
||
command.
|
||
Extend "b" option to include a second value which is the
|
||
maximum message size this server is willing to accept.
|
||
For example, a value of "10/1000000" says that there
|
||
must be ten blocks free, and sendmail will reject
|
||
any message larger than one megabyte.
|
||
Some portability hooks for NeXT (this could be applicable
|
||
to Mach in general). You have to create an empty
|
||
file called "unistd.h" to get it to compile.
|
||
Adjust config values (MAXLINE, MAXATOM, and PSBUFSIZE) to
|
||
be more generous.
|
||
Add X400-Received: to the list of headers tagged with H_TRACE
|
||
in conf.c. From Bill King, Allen-Bradley Co.
|
||
|
||
6.54/6.25 93/04/19
|
||
Fix problem that caused redefinition of SMTP and QUEUE compile
|
||
flags. Pointed out by Jon Forrest of the Sequoia 2000
|
||
project at Berkeley.
|
||
Properly handle \! hack -- it was treating host\!user as one
|
||
token (host!user) instead of three (host, !, user).
|
||
Fix from Eric Wassenaar of NIKHEF-H.
|
||
Fix compilation problem in getauthinfo() if IDENTPROTO is off.
|
||
Turn off DEFNAMES and DNSRCH when getting the hostsignature
|
||
(i.e., MX records) in level 1 configuration files; this
|
||
matches the old behaviour. From Motonori Nakamura of
|
||
Kyoto University.
|
||
Improve error message printing -- if sent through an alias,
|
||
error messages include the name of the alias in the
|
||
message. Unfortunately, in order to make this work
|
||
properly in queue runs, this changes the format of the
|
||
C line in the qf file. The relatively uselessness of
|
||
the previous information was pointed out to me by
|
||
Allan E Johannesen of WPI.
|
||
Add XLA compile flag to add hooks to Christophe Wolfhugel's
|
||
extended load average code. This is still in very early
|
||
form. For information regarding the guts of the xla
|
||
code, contact Christophe.Wolfhugel@grasp.insa-lyon.fr.
|
||
Additional hooks for detecting tempfails in rewriting rules
|
||
(that is, in map lookups).
|
||
|
||
6.53/6.25 93/04/15
|
||
Properly diagnose ruleset zero returning null (instead of a mailer
|
||
triple). From Motonori Nakamura of Kyoto University.
|
||
More generalization of socket code for other protocols.
|
||
Shorten timeouts on reverse name lookups -- since they are done
|
||
during connection establishment, long timeouts here can
|
||
cause higher level timeouts. This mainly serves to accept
|
||
mail from hosts that do not have proper reverse (PTR) DNS
|
||
records set up.
|
||
Reset e_statmsg before each mailer invocation to avoid bogus
|
||
messages in the log.
|
||
Redefine $r, $s, and $_ in error envelopes so you don't get
|
||
incorrect cruft in the error message. Problem noted by
|
||
Motonori Nakamura of Kyoto University.
|
||
Fix a problem that can cause failure to return errors to Postmaster
|
||
in certain cases. From Motonori Nakamura.
|
||
Fix a problem that can cause some systems to give duplicate error
|
||
messages when a bad syntax address such as "<a" is presented
|
||
to an SMTP server. It doesn't seem to occur on all
|
||
machines. From Motonori Nakamura.
|
||
Default IDENTPROTO off for Ultrix and HPUX, which apparently have
|
||
the interesting "feature" that when they receive a "Host
|
||
unreachable" message they closes all open connections to
|
||
that host. However, some firewall gateways send this message
|
||
if you try to connect to an unauthorized port, such as the
|
||
IDENT port (113). Thus, no email can be received from such
|
||
hosts. There is some evidence that versions of Ultrix before
|
||
4.3 do not have this problem. Thanks to Tom Ivar Helbekkmo
|
||
for pointing out this behaviour to me and to Michael Corrigan
|
||
of U.C. San Diego for informing me about the HPUX problem.
|
||
Allow IPC mailers to return a colon-separated list of hosts in the
|
||
$@ clause; these are searched in order as though they were
|
||
MX records.
|
||
When sending an error report, print the list of addresses tagged
|
||
as bad. Requested by Allan E Johannesen of WPI.
|
||
Change map function calls to return a status code. This gets
|
||
passed back as the result of rewrite. Parseaddr marks
|
||
the address as a QUEUEUP address if the return code is
|
||
EX_TEMPFAIL. All this to queue properly if the name
|
||
server is down. This code is not well tested. This code
|
||
changes the interface to map lookup functions (a fifth
|
||
parameter, int *statp, is added). Feature requested by
|
||
Dan Oscarsson.
|
||
Don't delete quotes (in the dequote map) if there are spaces in
|
||
the string, since this would cause them to be replaced by
|
||
the SpaceSub character.
|
||
Accept BODY=8BITMIME on SMTP MAIL command. This isn't advertised
|
||
because the 8BIT to 7BIT translation doesn't exist yet.
|
||
This does add a "bodytype" field to both envelope and
|
||
queue file and a -B command line flag to pass the type in
|
||
during direct invocations.
|
||
Discard return error messages only on responses to responses to
|
||
responses, not on responses to responses. That is, the
|
||
algorithm is to try return to sender, then return to
|
||
postmaster, then discard. Previously it discarded
|
||
immediately if the return to sender pass failed.
|
||
CONFIG: back out change to hide unqualified hostnames behind %-hack.
|
||
This screws up local aliases and .forward files.
|
||
CONFIG: add FEATURE(nocanonify) to turn off calls to $[ ... $];
|
||
some sites only handle completely canonified names.
|
||
Requested by John Gardiner Myers of CMU.
|
||
CONFIG: some UUCP code was still included even if FEATURE(nouucp)
|
||
was specified.
|
||
|
||
6.52/6.24 93/04/10
|
||
Clean up some minor glitches on error return messages pointed out
|
||
by Motonori Nakamura of Kyoto University.
|
||
Fix reply() to not reset SmtpReplyBuffer on fatal errors; this
|
||
was supposed to reset SmtpMsg Buffer. This makes the
|
||
client side code virtually useless. Reported by Allan
|
||
E Johannesen of WPI and Phil Brandenberger of Swarthmore.
|
||
Better debug messages if fuzzy is disabled, suggested by Allan
|
||
E Johannesen of WPI.
|
||
Offset SmtpReplyBuffer by four in usersmtp when checking for
|
||
loopback. From Eric Wassenaar.
|
||
Don't set $s until after runinchild in srvrsmtp -- otherwise
|
||
it gets cleared. From Eric Wassenaar.
|
||
Implement IDA-style $&x for deferred macro expansion.
|
||
More POSIX compatibility.
|
||
CONFIG: Hide unqualified hostnames behind %-hack using $s as the
|
||
actual sender. This is only done if $r is non-null, that
|
||
is, if this is not locally submitted mail.
|
||
CONFIG: Add FEATURE(bitdomain) allowing mapping of BITNET host
|
||
names to internet domains. A program contributed by
|
||
John Gardiner Myers of CMU to create the maps is included
|
||
in the contrib directory (in the "misc" tar file).
|
||
CONFIG: Add FEATURE(uucpdomain) for a similar mapping for UUCP
|
||
hosts. There is currently no tool to create this map.
|
||
|
||
6.51/6.23 93/04/04
|
||
Add D= mailer flag to specify a path of possible working directories
|
||
in which to execute the mailer. This is intended for the
|
||
prog mailer; some shells can get upset if they don't have
|
||
access to the current directory.
|
||
Add RFC 1413 (IDENT) protocol support. This is only very loosely
|
||
tested. This adds a $_ macro to be the authenticated
|
||
info (in ``user@domain [address]'' form) and debug flag
|
||
9 to trace the protocol.
|
||
Check for loopbacks in usersmtp instead of srvrsmtp -- there is no
|
||
reason for a local agent to not be talking to the localhost
|
||
(although the inverse is not true).
|
||
Add a few hooks for automated map rebuilding. This is certainly
|
||
not done yet.
|
||
CONFIG: Have prog mailer specify a path of ``D=$z:/'' -- that is,
|
||
user's home directory then the root.
|
||
CONFIG: Log RFC 1413 identification in Received: line.
|
||
|
||
6.50/6.22 93/04/01
|
||
Fixes to requeueing code to make it compute priority, nrcpts,
|
||
and the like properly.
|
||
|
||
6.49/6.22 93/04/01
|
||
Diagnose incorrect privacy flags. Suggested by Bryan Costales
|
||
of ICSI.
|
||
Some ANSI C fixes.
|
||
Arrange to quote backslashes as well as other special characters
|
||
in the phrase part of a route-addr.
|
||
Some fixes to FallBackMX code suggested by Motonori Nakamura of
|
||
Kyoto University.
|
||
More vigorous zeroing of CurHostAddr to avoid logging of bogus
|
||
host addresses when you are actually just printing
|
||
information from the MCI structure; problem noted by
|
||
Michael Corrigan of U.C. San Diego.
|
||
Don't ignore rest of queue if any job is not runnable. This can
|
||
also cause an incorrect job to be lost. Fix from
|
||
Eric Wassenaar.
|
||
Always respond "quickly" to RCPT command; do alias expansion and
|
||
the like later. This also means that mail for lists that
|
||
have errors will be acccepted, and an error sent back
|
||
later. This is done by instantiating the queue file
|
||
and then immediately running and requeueing it.
|
||
|
||
6.48/6.22 93/03/30
|
||
Fix incorrect diagnosis of infinite loop in ruleset. Problem noted
|
||
by several people.
|
||
Improve information printed when infinite loops are discovered.
|
||
Zero CurHostAddr to fix erroneous internet addresses in log when no
|
||
addresses can be bound. Pointed out by Motonori Nakamura
|
||
of Kyoto University.
|
||
"Probe" SMTP connections using RSET instead of NOOP "just in case".
|
||
Suggested by John Gardiner Myers of CMU.
|
||
Don't warn about -f if you are setting sender to yourself.
|
||
|
||
6.47/6.22 93/03/29
|
||
Fix incompatible call to endmailer in smtpquit which causes core
|
||
dumps. Noted by Allan E Johannesen of WPI.
|
||
HPUX portability changes from Michael J. Corrigan of UC San Diego.
|
||
Require MAIL before RCPT command in srvrsmtp.c. This had been
|
||
intentional from the 821 draft days when the order wasn't
|
||
clear, but is silly now.
|
||
Fix bug in nis_magic routine that was initializing parameters
|
||
incorrectly. Fix from Takahiro Kanbe of Fuji Xerox
|
||
Information Systems Co., Ltd.
|
||
Change default for PrivacyFlags in conf.c to 0 -- since it always
|
||
"or"s in new values, there was no way to turn off the
|
||
AuthWarning stuff.
|
||
Add O option to set SMTP daemon options.
|
||
Add V option to set fallback MX host. This always sorts at lower
|
||
priority than anything it gets from the name server. It
|
||
should only be used for environments with very bad network
|
||
connectivity. Requested by several people.
|
||
Log sending info. It's not clear this is a good idea.
|
||
CONFIG: fix typo in mailertable code. Noted by Phil Brandenberger
|
||
of Swarthmore.
|
||
CONFIG: add confDAEMON_OPTIONS and confFALLBACK_MX to set options
|
||
O and V, respectively.
|
||
|
||
6.46/6.21 93/03/26
|
||
Fix botch in server SMTP that broke transactions that did not
|
||
use HELO first (like MH). Fix from Michael Corrigan
|
||
of U.C. San Diego.
|
||
Fall back to other MX records if there is an error anywhere
|
||
in delivery (actually on MAIL or DATA -- RCPT is harder).
|
||
Suggested by John Gardiner Myers and Motonori Nakamura.
|
||
Revert to non-prototypes -- it turns out that our ANSI C
|
||
compiler is more forgiving than most others about
|
||
mixing prototyped extern declarations with non-prototyped
|
||
function definitions.
|
||
Fix a problem with multi-word class matching pointed out by
|
||
Neil Rickert. Given:
|
||
CX b a.b.c
|
||
R$+ $=X $+ $: $1 < $2 > $3
|
||
the input "user@a.b.c" failed instead of being properly
|
||
rewritten as "user@a.<b>.c".
|
||
Neil also convinced me that it was correct that $~ should match
|
||
only one token -- the problem is that it's always possible
|
||
to add another token, so $~ matches far too eagerly.
|
||
|
||
6.45/6.21 93/03/25
|
||
Implement multi-word classes (properly!).
|
||
|
||
6.44/6.21 93/03/25
|
||
Add X-Authentication-Warning: headers to clue users into possible
|
||
attempts to forge mail. This is on the authwarnings
|
||
privacy flag, but is the default. Suggested by Bryan
|
||
Costales of ICSI.
|
||
Pass default units for convtime in so they can be more reasonable.
|
||
Allow config files to always add a new Comments: header (i.e.,
|
||
they will be added even if an old one already exists).
|
||
Suggested by Bryan Costales of ICSI.
|
||
Allow config files to delete an existing Return-Path: header.
|
||
These should only be added at final delivery. Suggested
|
||
by Bryan Costales of ICSI.
|
||
Some debugging additions. Suggested by Bryan Costales of ICSI.
|
||
Clean up logging of Family 0 addresses. Noted by David Muir
|
||
Sharnoff and others.
|
||
Add a "dequote" map class. This allows config files to strip
|
||
quotes off of addresses. Note that this is not a builtin
|
||
map, just a class -- so you have to define the map
|
||
using the K line.
|
||
Fix a bug in the queueup() loop getting a locked tf where in
|
||
very odd cases it can fall off the bottom and core dump.
|
||
Of course, it was P{r Emanuelsson who found it....
|
||
Open a new transcript when splitting an envelope. Problem found
|
||
by Allan E Johannesen of WPI.
|
||
Improved error output in endmailer if the mailer core dumps.
|
||
CONFIG: Fix typo in UUCP mailer definition.
|
||
CONFIG: Default several of the new options on: eight bit input,
|
||
privacy flags set to "authwarnings", and message warning
|
||
set to 4h.
|
||
CONFIG: Use dequote map.
|
||
|
||
6.43/6.20 93/03/23
|
||
Fix problem with assumption of an sa_len field in a generic
|
||
sockaddr -- it turns out that most vendors haven't
|
||
picked up this (very important) fix.
|
||
Change compilation flags for daemon code -- select one or both
|
||
of NETINET or NETISO, but don't ever set DAEMON manually.
|
||
CONFIG: add FEATURE(mailertable) to do IDA-style mailertables.
|
||
|
||
6.42/6.19 93/03/19
|
||
Use Postmaster as default fallback return address, not root.
|
||
POSIX changes for file descriptor handling.
|
||
Diagnose errors writing new queue file.
|
||
If you change the owner using an owner- alias, also change the
|
||
error mode to EM_MAIL so that errors don't get dropped
|
||
into an inappropriate directory. Problem noted by
|
||
Allan E Johannesen of WPI.
|
||
If you are su'ed to root, send email as who you really are, not
|
||
as root. From Brian Kantor of U.C. San Diego.
|
||
Allow warning messages to be sent after a configurable interval
|
||
has passed without delivery. The message is sent only
|
||
once per envelope. This changes the format of the qf
|
||
file to have an F line, and the format of the T option
|
||
to accept take the format "return/warn" (both intervals).
|
||
Don't force all local names to lower case -- this was left over
|
||
from the weird handling of case mapping on aliases. It
|
||
is now driven (as expected) by the "u" mailer flag.
|
||
Problem noted by P{r Emanuelsson.
|
||
Fix problem that caused headers on returned email to be trashed;
|
||
they were getting freed, but are still accessible via
|
||
BlankEnvelope.
|
||
Fix problem that caused bogus ids to be created on returned
|
||
mail.
|
||
Add support for ISO and other non-INET networking. This is by
|
||
no means finished yet. This does assume a lot of other
|
||
system support, like a version of gethostbyname that
|
||
returns non-AF_INET addresses.
|
||
CONFIG: change default on prog mailer to keep upper case in
|
||
user names (i.e., in the program command line).
|
||
CONFIG: strip trailing dots off of hosts in uucp mailer before
|
||
convert to bang format.
|
||
CONFIG: create new "relay" mailer for $R (LOCAL_RELAY) and $H
|
||
(MAIL_HUB) delivery that doesn't add local domain. Note
|
||
that this violates 821, but is probably "more correct"
|
||
for what we are trying to do. Problem pointed out by
|
||
Michael Graff of Iowa State.
|
||
|
||
6.41/6.18 93/03/18
|
||
Clean up unnecessary creates of queue ids (i.e., empty qf files)
|
||
when not needed, such as when starting up an SMTP
|
||
connection.
|
||
Fix problem where split envelopes aren't instantiated in the queue.
|
||
This is quite a serious bug.
|
||
Owner- aliases had problems with leading spaces causing a
|
||
premature delimitation.
|
||
|
||
6.40/6.18 93/03/18
|
||
Have ending 250 (after DATA) include the id; suggested by
|
||
Brian Kantor of UC San Diego.
|
||
Add logging on envelope splitting.
|
||
Change queue ids to have one more letter encoding the hour of
|
||
the day so that during a single day there is a greater
|
||
likelihood of uniqueness; requested by Brian Kantor.
|
||
|
||
6.39/6.18 93/03/18
|
||
Fix minor compile problem if LOCKF is defined.
|
||
Define size of tobuf in conf.h. Observed by Toshinari Takahashi
|
||
of Toshiba.
|
||
Restore e_sender -- this is equivalent to e_from.q_paddr without
|
||
decorations such as angle brackets and comments.
|
||
OSF/1 on Alpha changes from Allan E Johannesen of WPI.
|
||
CONFIG: fix typo in S3 for list syntax (;: => :;). Thanks to
|
||
Christopher Hoover for noting the problem.
|
||
|
||
6.38/6.17 93/03/17
|
||
Pass envelope to disconnect to avoid another use of CurEnv, which
|
||
can apparently end up being null at inopportune times.
|
||
Log "received from" as "relay=" for consistency (suggested by
|
||
John Gardiner Myers).
|
||
Fix major bug in header handling: if no From: line existed in
|
||
the header (so sendmail inserts one), and the sender is
|
||
an alias that has an owner, the From: line shows the
|
||
owner (as well as the envelope). Fixed by early binding
|
||
the headers (which will change debugging output).
|
||
HPUX portability patches from Michael J. Corrigan of UC San Diego.
|
||
Some attempts to adapt better to out of open file conditions.
|
||
Some changes to ctladdr handling in queue files.
|
||
|
||
6.37/6.17 93/03/16
|
||
MAJOR CHANGE: delete e_sender and e_returnpath (why are these
|
||
different from e_from?) and $< macro.
|
||
Log correct IP address in relay= field even if the connection
|
||
times out.
|
||
Log "received from [RESPONSE]" on EF_RESPONSE messages (from
|
||
John Gardiner Myers).
|
||
Fixes to SysExMsg logging (sometimes just got "message: %s"
|
||
instead of "message: error message"), noted by Eric
|
||
Wassenaar. Also reported by Motonori Nakamura.
|
||
Improvements to MX piggybacking code, from Motonori Nakamura.
|
||
Fix case where CurHostName points to an auto variable that has
|
||
been deallocated (from Motonori Nakamura).
|
||
Fix bug causing newlines to be included in aliases if option
|
||
"n" (check alias RHS) is set; bug noted by David Muir
|
||
Sharnoff.
|
||
Fix problem causing user names that should be mapped to lower
|
||
case to not be mapped if they are sent during a queue
|
||
run. This greatly simplifies the case mapping code.
|
||
Problem noted by Allan E Johannesen of WPI.
|
||
Don't do recipient address rewriting in buildaddr. This
|
||
improperly did recipient rewriting on sender addresses,
|
||
and just seems bogus in general -- but the change could
|
||
break some .cf files.
|
||
Pass TZ envariable to child processes for System V.
|
||
CONFIG: allow LOCAL_RULE_1 and LOCAL_RULE_2 if you want to
|
||
define those rulesets.
|
||
KNOWN PROBLEM: I have seen some problems on SunOS that causes
|
||
the User Data Base to give errors on some addresses. I
|
||
have tracked the problem back at least as far as 93.02.15
|
||
(version 6.22). Running with debugging on makes it
|
||
go away, so I conclude that it is referencing uninitialized
|
||
stack data. I haven't been able to track this down yet.
|
||
|
||
6.36/6.16 93/03/08
|
||
Allow local mailer to specify $@host -- this lets you assign the
|
||
"foo" part of jgm+foo to $h for passing in to the local
|
||
mailer.
|
||
Additional debug printing in getcanonname (show query type).
|
||
Don't add the e_fromdomain on sender addresses -- this interacts
|
||
weirdly with the owner- code.
|
||
Improve delivery logging to not log obvious or meaningless stuff.
|
||
Include numeric IP address in Received: lines per RFC 1123 section
|
||
5.2.8.
|
||
Fixed a bug in checking stat() return value if restrictmailq is
|
||
set. Also, check the entire group set instead of just the
|
||
primary group. Both from John Gardiner Myers.
|
||
Don't have usrerr automatically print errno, since this is often
|
||
misleading.
|
||
Use transienterror() in makeconnection after connect() fails and
|
||
in openmailer after execve() fails (from Eric Wassenaar).
|
||
Also moved transienterror() from util.c to conf.c.
|
||
Clean up from= logging on response messages.
|
||
Undo patch allowing prescan to return a null vector -- it breaks
|
||
too many things.
|
||
Config: FEATURE(notsticky) lets you use UDB for everything coming
|
||
in to the machine, even if it is specifically targetted
|
||
to this machine. Without it, UDB is bypassed if the user
|
||
name is fully qualified.
|
||
Config: fix another minor botch with <> (local mailer wasn't
|
||
mapping them properly).
|
||
|
||
6.35/6.15 93/03/05
|
||
Fix getrealhostname to return null if sinlen <= 0 -- this can
|
||
occur if stdin is a pipe.
|
||
Avoid infinite loop in getcanonname if name server return
|
||
NO_DATA (for example).
|
||
Config: avoid having C flag qualify list syntax and error syntax.
|
||
|
||
6.34/6.14 93/03/05
|
||
Fix logging in deliver to not pass too many parameters to Ultrix
|
||
versions of syslog.
|
||
Don't write the pid file until after the daemon has actually
|
||
opened and conditioned the connection.
|
||
Consider addresses "different" if their q_uids differ (so that
|
||
two users forwarding to the same program will be seen
|
||
as different, rather than the same).
|
||
Fix problem with bad parameters in main() -- they set ExitStat
|
||
but don't exit.
|
||
Fix null pointer references through RealHostName -- painfully
|
||
discovered by Allan E Johannesen of WPI.
|
||
Fix bug causing user@@localhost to core dump (yuch).
|
||
Config: don't put two @host.dom.ain on users in $=E in SMTP
|
||
mailer. Also, catch user@ (no host) in ruleset 0.
|
||
|
||
6.33/6.13 93/03/03
|
||
Config: add confCW_FILE as the name of the cw configuration file
|
||
(defaults to /etc/sendmail.cw). From P{r Emanuelsson.
|
||
Allow prescan to return a pointer to an empty list -- this is
|
||
not an error. Also, clean up error reporting to avoid
|
||
double errors (prescan reports once, then the caller
|
||
reports again).
|
||
Changes to avoid trusting T_ANY queries -- run them, but if you
|
||
don't get the info you expected, do T_A and T_MX queries
|
||
anyhow. This also fixes an oversight where _res.options
|
||
bits were being ignored.
|
||
If PRIV_NOVRFY is set, use 252 response code instead of 502 per
|
||
RFC 1123 section 5.2.3. It's not 100% clear that this
|
||
is correct, but it probably works better with stupid
|
||
mailers that do a VRFY and only check the first digit.
|
||
|
||
6.32/6.12 93/03/02
|
||
Fix uninitialized variable "protocol" in smtp code.
|
||
Include <unistd.h> in sendmail.h -- move towards POSIX/ANSI.
|
||
Additional hooks for RFC 1427 (ESMTP SIZE extension). This
|
||
includes requiring that enoughspace() know the system
|
||
block size, which will undoubtedly break most ports.
|
||
Trace flag 19 in use for srvrsmtp.c.
|
||
Additional logging -- notably the sending mailer name. This
|
||
also changes the delivery logging to strict field=value
|
||
syntax.
|
||
Fix some problems with messages getting sent even to addresses
|
||
that had been marked bad -- from Eric Wassenaar.
|
||
More WIDE changes: accept host name inside [...] as non-MXed
|
||
host. This is intended ONLY for use inside firewalled
|
||
environments, where the MX points at the gateway.
|
||
Change .cf file conventions so that mapping for <> addresses
|
||
don't have an @ in them (to avoid confusing the C mailer
|
||
flag). Pointed out by Neil Rickert.
|
||
Config extensions for Sam Leffler's FlexFAX software.
|
||
|
||
6.31/6.10 93/02/28
|
||
Fix some more bugs in alias owner code -- there were some weird
|
||
cases where an error in a non-aliased name would override
|
||
the return info in an aliased name with an owner.
|
||
Changes from WIDE Project, forwarded to me by Motonori Nakamura:
|
||
Log actual delivery host (after MX et al); from
|
||
yasuhiro@dcl.co.jp.
|
||
Log daemon startup.
|
||
Deliver Postmaster copies without a body.
|
||
Better logging of SMTP senders.
|
||
Send all program email as daemon even when local.
|
||
As requested in various forms from many people, accept -qIstring
|
||
to limit queue runs to jobs with queue-id matching string.
|
||
Similarly for -qRstring for recipients, -qSstring for
|
||
senders.
|
||
Initial hooks for ESMTP support (see RFC 1425).
|
||
Fixed a syntax error in the UUCP mailer specification that caused
|
||
core dumps on startup.
|
||
Check for missing A= or P= arguments in mailer definitions.
|
||
|
||
6.30/6.10 93/02/27
|
||
Require FROZENCONFIG compilation flag to include frozen
|
||
configuration code. Frozen configuration is really
|
||
not a very good idea any more, particularly in shared
|
||
library environments.
|
||
Do better checking of errno after opens of :include: and .forward
|
||
files to defer delivery on network and other transient
|
||
errors. Suggestion from Craig Everhart.
|
||
Fix minor botch in read timeout macro processing.
|
||
Add FEATURE(nouucp) to config files for sites that know absolutely
|
||
nothing about UUCP.
|
||
Add built cf files to distribution tape and clarify how to build
|
||
them if you don't have the Berkeley make.
|
||
Some sizeof(long) portability changes for the Alpha, from Allan
|
||
E Johannesen.
|
||
Add "restrictmailq" privacy flag -- if set, only people in the same
|
||
group as your queue directory can print the queue. If you
|
||
set this, be sure you also restrict access to log files....
|
||
Fix another bug in owner-list stuff that can cause data files to
|
||
be "lost".
|
||
Fix a bug with queue runs that cause forwards to yourself to go
|
||
into alias/forwarding loops. I'm still iffy about this
|
||
fix.
|
||
Fix from Eric Wassenaar for suppression of return message code.
|
||
|
||
6.29/6.9 93/02/24
|
||
Fix yet another problem in alias owner code -- put the wrong return
|
||
address on the enclosed return-to-sender letter.
|
||
|
||
6.28/6.9 93/02/24
|
||
Fix botch in alias owner code that caused it to not operate if the
|
||
error was detected locally.
|
||
|
||
6.27/6.9 93/02/24
|
||
M_LOCAL => M_LOCALMAILER to avoid conflict with Ultrix include
|
||
file <sys/mount.h>.
|
||
Miscellaneous bug fixes from Eric Wassenaar:
|
||
sendmail -bv -t logs the from line even though in verify
|
||
mode only.
|
||
sendmail -v can go into queue mode if shouldqueue returns
|
||
TRUE.
|
||
Add route-addr pruning per RFC 1123 section 5.3.3. This can be
|
||
disabled using the "R" option.
|
||
Delete (always undocumented) -R flag (save original recipients);
|
||
there are ways to syslog(3) these now.
|
||
Clean up SMTP reply codes -- specify them as needed in the code,
|
||
instead of in conf.c -- this was needed during the NCP to
|
||
TCP transition, but seems silly now. This also changes
|
||
parameters to message and nmessage.
|
||
Have mailstats read the .cf file to find the sendmail.st file and
|
||
get text versions of mailer names. An initial version of
|
||
this code was provided by Tuominen Keijo (although the
|
||
comments indicate the good bits were written by "E.V.").
|
||
Add yet more System V compatibility hacks.
|
||
Fix bug in VRFY code (assumes everything must be a local user).
|
||
Allow specification of any of the hard-wired pathnames in the
|
||
Makefile.
|
||
Delete concept of "trusted users" -- this really didn't provide
|
||
any security anyway, and caused some problems.
|
||
Delete last vestige of support for the word "at" as an equivalent
|
||
to the character "@".
|
||
Propagate owner-foo alias information into the envelope sender.
|
||
Based on code from John Gardiner Myers. This is a major
|
||
semantic change -- beware!
|
||
Allow $@ on LHS to indicate "match zero" -- this is used to match
|
||
the null expression.
|
||
|
||
6.26/6.8 93/02/21
|
||
Don't "lose" queue runs. Very important fix from (who else?)
|
||
Eric Wassenaar.
|
||
Completely reset state on RSET command -- from Eric Wassenaar.
|
||
Send error messages and return receipts using an envelope sender
|
||
of <> regardless of the setting of $n. Rewriting rules
|
||
can undo this if they feel the necessity, as might be
|
||
needed for networks that don't understand the syntax.
|
||
This is permitted by RFC 821 section 3.6 and required by
|
||
RFC 1123 section 5.3.3. THIS REQUIRES VERSION 4 CONFIG
|
||
FILES because the rulesets must be able to parse <>
|
||
properly.
|
||
Don't ever send error messages to "<>" -- they will get sent to
|
||
the local postmaster or dumped in /usr/tmp/dead.letter
|
||
instead. Per RFC 1123 section 5.3.3.
|
||
Explicitly check for email to yourself as a dotted quad. You
|
||
have to call $[ [ ... ] $] to get this.
|
||
Up the message timeout to five days per RFC 1123 section 5.3.1.1.
|
||
Make all read timeouts individually configurable, as strongly
|
||
recommended by RFC 1123 section 5.3.2.
|
||
Use f_bavail (blocks available to regular users) instead of f_bfree
|
||
(blocks available to superuser) in free block checks.
|
||
Change $d macro to be the current time, not the origination time,
|
||
since this is consistent with how it is used now.
|
||
Generalization of enoughspace from Eric Wassenaar covering
|
||
SGI, Apollo, HPUX, Ultrix, and SunOS.
|
||
Ignore process group signals -- some front ends can do this if
|
||
you kill a window too quickly. From Eric Wassenaar.
|
||
Change umask to 022.
|
||
|
||
6.25/6.8 93/02/20
|
||
Close all cached connections before calling mailers and after
|
||
forking for delivery (caused double closes which resulted
|
||
in false errors).
|
||
Add FEATURE(redirect) in config files -- this allows you to alias
|
||
old addresses to a pointer to the new address that will
|
||
give a 551 error message, but not deliver the mail.
|
||
Some code changes to make the 551 errors look pretty.
|
||
Names of M4 program paths in config files have changed -- they
|
||
are all XXX_MAILER_PATH now, to match XXX_MAILER_FLAGS.
|
||
Fix a bug in the QSELFREF code having to do with empty .forward
|
||
files, reported by Eric Wassenaar.
|
||
Add option "p" (privacy flags); this allows you to tune how
|
||
picky the SMTP server will be. This also adds the
|
||
confPRIVACY_FLAGS M4 macro in the config files.
|
||
Add option "b" (minimum blocks free). If there are fewer than
|
||
this number of blocks free on the filesystem containing
|
||
the queue directory, the SMTP MAIL command will return
|
||
a 452 response and ask you to try again later. This
|
||
also adds the confMIN_FREE_BLOCKS M4 macro in the config
|
||
files.
|
||
Made VRFY just verify (doesn't expand aliases and .forward files);
|
||
EXPN does full expansion. RCPT in queue-only mode also
|
||
doesn't chase aliases and .forward.
|
||
|
||
6.24/6.7 93/02/19
|
||
Increase the number of domain search entries in domain.c to allow
|
||
for the extra "" entry indicating the root domain.
|
||
Reported by Motonori Nakamura of Kyoto U.
|
||
Add a "SMART_HOST" in the configs for UUCP-connected sites that
|
||
want to forward all mail with extra "@"s to that site.
|
||
Also allows SMART_HOST, LOCAL_RELAY, and MAIL_HUB to
|
||
be specified as ``mailer:hostname'' to use an alternate
|
||
mailer.
|
||
Clarified and updated some wording in the Operations Guide.
|
||
Add the "c" mailer flag -- this suppresses all comment parts of
|
||
addresses (requested by John Curran of NEARnet).
|
||
Have -v print prompts in -bt mode even if stdin is not a terminal
|
||
(default behaviour is to be silent if not reading from
|
||
a terminal). Suggested by Bryan Costales, ICSI.
|
||
Move the metacharacters from C0 space (\001-\037) into C1 space
|
||
(\201-\237). This also fixes a bunch of potential bugs
|
||
with G1 characters (\240-\276) in headers relating to
|
||
negative numbers passed to isspace() et al.
|
||
Add YP_LAST_MODIFIED and YP_MASTER_NAME to DBM version of alias
|
||
database if YPCOMPAT is #defined. Enhancement from
|
||
Takahiro Kanbe of Fuji Xerox Information Systems Co., Ltd.
|
||
Add "list" Precedence (-30); this can be used with old sendmails
|
||
which will map to precedence 0 (which will return error
|
||
messages). Suggested by Stephen R. van den Berg.
|
||
Many bug fixes from Eric Wassenaar of the National Institute for
|
||
Nuclear and High-Energy Physics, Amsterdam:
|
||
Clear timeouts properly on open failures in include().
|
||
Don't dereference through NULL if no home directory found.
|
||
Re-establish SIGCHLD signal on System 5 in reapchild().
|
||
Avoid NULL pointer reference on -pFOO flag.
|
||
Properly handle backslash escapes in comments.
|
||
Correctly check reply status on SMTP NOOP command.
|
||
Properly save SMTP error message if peer gives
|
||
"Service Shutting Down" message.
|
||
Avoid writing to the transcript if it couldn't be opened.
|
||
Signal errors in SMTP children to parent properly.
|
||
Handle self references in a list more globally (include a
|
||
QSELFREF bit in the address flags). This enhancement
|
||
was suggested by Eric Wassenaar.
|
||
Use initgroups() in hpux, even though it's System-V based. The
|
||
HASINITGROUPS compile flag can set this on other systems.
|
||
This HPUX behaviour was pointed out by Eric Wassenaar.
|
||
|
||
6.23/6.6 93/02/16
|
||
Clean up handling of LogLevel to make it easier to figure out
|
||
what's on what level.
|
||
Change log levels to have some consistency:
|
||
1 serious system failures, security problems
|
||
2 lost communications, protocol failures
|
||
3 other serious failures
|
||
4 minor errors
|
||
5 message collection
|
||
6 vrfy logging, creation of return-to-sender
|
||
7 delivery failures
|
||
8 delivery successes
|
||
9 delivery tempfails (queue ups)
|
||
10 database expansion
|
||
>64 debugging
|
||
Allow IDA-style separated processing on S= and R= in Mailer
|
||
definition lines. Note that rulesets 1 and 2 are
|
||
still used for both addresses as before. Bruce Lilly
|
||
gave a convincing argument that RFC976 insists on
|
||
this behaviour.
|
||
Added some time zones to arpatounix -- they may not be in the
|
||
standards, but they are in use. However, I may delete
|
||
arpatounix entirely -- there appears to be no reason
|
||
for it to exist.
|
||
Change to UUCP mailer (in cf directory) to try to do a saner job.
|
||
I'm still not certain about this mailer in general.
|
||
|
||
6.22/6.5 93/02/15
|
||
Fix bug that prevents saving letters in ~/dead.letter.
|
||
Don't add angle brackets in VRFY command if angle brackets already
|
||
exist in the address.
|
||
Fix bogus error message in udbexpand.
|
||
Null terminate host buffers in buildaddr (broken in 6.21) --
|
||
IMPORTANT FIX!!
|
||
|
||
6.21/6.5 93/02/15
|
||
Fix another incorrect error message in alias.c, found by Azuma
|
||
Okamoto.
|
||
Fix a couple of problems in the more-configurable config files,
|
||
found by Tom Ivar Helbekkmo.
|
||
Fix problem with quoted :include: entries.
|
||
Don't duplicate the filename on verbose printing of .forward and
|
||
:include: contents.
|
||
Extend size of prescan buffer (to allow bigger addresses). Also,
|
||
detect some buffer overflows.
|
||
Log user SMTP protocol errors (log level 4).
|
||
|
||
6.20/6.4 93/02/14
|
||
Fix another problem in the MCI state machine caused when there
|
||
were errors generated from the other end to commands
|
||
other than RCPT.
|
||
|
||
6.19/6.4 93/02/14
|
||
Include load average support for DEC Alpha running OSF/1.
|
||
Fix multiple-response problem with errors in MAIL From: line.
|
||
Fix SMTP reply codes for invalid address syntaxes (give 501;
|
||
never give multiple error messages for a single message).
|
||
Fix problem where a cached connection timeout rejects all
|
||
later connects to that host.
|
||
Fix incorrect error message if alias.c is compiled with DBM only.
|
||
Additional changes to fix nested conditionals (from Bruce Lilly).
|
||
Recover more gracefully from operating system failures, particularly
|
||
NULL returns from openmailer (from Noritoshi Demizu,
|
||
OMRON Corporation).
|
||
Log forward, alias, and userdb expand operations on log level 10;
|
||
concept suggested by P{r (Pell) Emanuelsson.
|
||
Changes for HPUX 8.07 compatibility.
|
||
|
||
6.18/6.4 93/02/12
|
||
Allow any config option to be set using an M4 define.
|
||
Change UNAME compile flag to HASUNAME for IDA compatibility
|
||
(besides, it's a better name).
|
||
Note in README that on SunOS it must be linked -Bstatic.
|
||
Fairly major change in domain.c to handle wildcard MX records
|
||
more rationally. NOTE: the "w" option (no wildcard MX
|
||
records match local domain) has been eliminated.
|
||
Fix some unset variable references pointed out by Bruce Lilly.
|
||
Fix host name in process titles when using cached connection.
|
||
|
||
6.17/6.3 93/01/28
|
||
Fix System 5 compatibility changes to be compatible with the rest
|
||
of the world.
|
||
|
||
6.16/6.3 93/01/28
|
||
Experimental fix for problem handling errors in the SMTP
|
||
protocol in conjunction with connection caching.
|
||
System 5 compatibility changes.
|
||
|
||
6.15/6.3 93/01/26
|
||
Fix a bug that causes local mail delivered using -odq to be
|
||
eliminated as a duplicate (because it matched the
|
||
ctladdr, now passed in as a C line). These changes
|
||
are pretty tricky......
|
||
|
||
6.14/6.3 93/01/25
|
||
Add debugging for some MCI errors.
|
||
|
||
6.13/6.3 93/01/22
|
||
Fix -e compatibility flag to take a value.
|
||
Fix a couple of minor compilation warnings on Sun cc.
|
||
Improve error messages in a few cases to be more self-explanatory.
|
||
|
||
6.12/6.3 93/01/21
|
||
Fix yet-another problem with environment handling, pointed out
|
||
by Yoshitaka Tokugawa and Tom Ivar Helbekkmo.
|
||
Some heuristics to try to limit resource exhaustion problems
|
||
if a downstream host has been down for a long time.
|
||
Fix problem with incorrect host name being logged in "Connection
|
||
timed out" messages (from Tom Ivar Helbekkmo).
|
||
Fix some ANSI C problems (from Takahiro Kanbe).
|
||
Properly log message sender on returned mail during queue run.
|
||
Count number of recipients properly.
|
||
Fix a problem in yp map code.
|
||
Diagnose "message timed out" (from Motonori Nakamura).
|
||
|
||
6.11/6.3 93/01/20
|
||
Fix problem with address delimitor inside quotes.
|
||
Define $k and $=k to be the UUCP name (from the uname call)
|
||
based on code from Bruce Lilly.
|
||
|
||
6.10/6.2 93/01/18
|
||
Implement arpatounix (largely code from Bruce Lilly).
|
||
Log more info (suggested by John Myers).
|
||
Allow nested $?...$|...$. (inspired by code from Bruce Lilly of
|
||
Sony US).
|
||
POSIX compatibility (noted by Keith Bostic).
|
||
Handle SMTP MAIL command errors properly (urged by several people,
|
||
notably John Myers of CMU).
|
||
Do early diagnosis of .cf errors (notably referencing a RHS
|
||
substitution that isn't on the LHS).
|
||
Adjust checkpointing to better handle batched recipients, suggested
|
||
by John Myers.
|
||
Fix miscellaneous bugs.
|
||
(config files:) Implement MAIL_HUB for all local mail (to handle
|
||
NFS-mounted directories) as urged by Tom Ivar Helbekkmo
|
||
of the Norwegian School of Economics.
|
||
|
||
6.9/6.1 93/01/13
|
||
Environment handling simplification/bug fix -- child processes
|
||
get a minimal, fixed environment. This avoids different
|
||
behaviour in queue runs.
|
||
Handle commas inside comments properly.
|
||
Properly limit large messages submitted in -obq mode.
|
||
|
||
6.8/6.1 93/01/10
|
||
Check mtime of thaw file against .cf and sendmail binary, based on
|
||
code from John Myers.
|
||
|
||
6.7/6.1 93/01/10
|
||
MX piggybacking, based on code from John Myers@CMU.
|
||
Allow checkcompat to return -1 to mean tempfail.
|
||
Bug fix in m_mno computation.
|
||
|
||
6.6/6.1 93/01/09
|
||
Tuning of queueing functions as recommended by John Gardiner Myers.
|
||
Return mail headers (no body) on messages with negative precedence.
|
||
Minor other bug fixes.
|
||
|
||
6.5/6.1 93/01/03
|
||
Fix botch causing queued headers to have ?XX? prefixes.
|
||
|
||
6.4/6.1 93/01/02
|
||
Changes to recognize special mailer types (e.g., file) early.
|
||
|
||
6.3/6.1 93/01/01
|
||
Pass timeouts to sfgets.
|
||
Check for control characters in addresses.
|
||
Fixed deferred error reporting.
|
||
Report duplicate aliases.
|
||
Handle mixed case recursive aliases.
|
||
Misc bug fixes.
|
||
|
||
6.2/6.1 92/12/30
|
||
Put return-receipt-to on a conf.c flag (but don't set it).
|
||
Fix minor syslog problem.
|