DoS bug that the select(2)/accept(2) pair is called on
a socket that is in the blocking I/O mode. The bug is
triggered if a selected connection dies before the accept(2)
leading to the accept(2) blocking virtually forever.
MFC after: 1 week
in the SYNOPSIS and DESCRIPTION.
Note that -l remains an ugly exception, to which no known rules apply,
since the specification of a single option multiple times isn't normal
standards-compliant CLI behaviour.
While here, mark AF_INET* and LOG_* defined values up with Dv.
-O, which limits the impact of the write-only restriction to guest
users.
*) The existing manual page's SYNOPSIS and option listing in the
DESCRIPTION are already horribly disordered. No attempt has been
made to fix this.
*) The existing source's getopt() optstring and option handling switch
are already horribly disordered. No attempt has been made to fix
this.
Discussed with: nik, -audit
long -> time_t
%ld -> %qd
fseek -> fseeko
NOTE: that fseek not works for >long offsets per POSIX:
[EOVERFLOW] For fseek( ), the resulting file offset would be a value which
cannot be represented correctly in an object of type long.
preventing anyone from downloading files. In conjunction with -A, and some
appropriate file permissions, this lets you create an anonymous FTP drop
box for people to upload files to.
The more obvious "-w" flag is already taken by NetBSD's ftpd. "-o" was
available as an option letter in all three BSDs.
with NetBSD and OpenBSD. glob(3) will now return GLOB_NOSPACE with
errno set to 0 instead of GLOB_LIMIT when we match more than `gl_matchc'
patterns. GLOB_MAXPATH has been left as an alias of GLOB_LIMIT to
maintain backwards compatibility.
Reviewed by: sheldonh, assar
Obtained from: NetBSD/OpenBSD
with the conversation function and challenges which needs to be
revisited, so in the interim a hack is introduced to provide
an OPIE challenge (which is random if OPIE does not apply)
at all non-anonymnous logins.
Limit the "pathname" glob to one item, as that is what all users of it
are expecting, except for LIST.
Always glob, instead of when the first character is a ~. For example,
if you had directories ~/x1, and ~/x2, then "cwd x[1]" would fail, but
"cwd ~/x[1]" would work since it was globbed due to the ~ character.
Also, "cwd ~/x[12]" used to arbitarily work as it used the first
expansion (ie: x1) without an error. Make it return '550 ambiguous'
instead of '550 not found' so that the user can see the difference.
For LIST, just use the user supplied string as the popen does the glob.
Problem noticed by: Ajay Mittal <amittal@iprg.nokia.com>
This allows you to determine if the file on the other side is the same
as the one you have without transferring the entire file to compare.
Needless to say, if the server end lies to you this check doesn't work,
but on the other hand, if it lies to you about the files checksum,
what can you trust from it ?
The PAM_FAIL_CHECK and PAM_END macros in su.c came from the util-linux
package's PAM patches to the BSD login.c
Submitted by: "David J. MacKenzie" <djm@web.us.uu.net>
files. Mostly -I${.CURDIR} was needed -- especially for YACC generated
files as the new cpp does not look in the ultimate source file
(ie, the .y file)'s directory as told by the "#line" directive. Some were
misspellings of "-I${.CURDIR}" as "-I.".
has set pwok to a non-zero value.
Previously, the fact that skey.access(5) allowed UNIX passwords for
this connection attempt was ignored, even in the NOPAM case.
This only addresses the NOPAM case; when libpam is used, the problem
will persist.
PR: 20333
