Commit Graph

72 Commits

Author SHA1 Message Date
David E. O'Brien
1a37aa566b Add `_PATH_DEVZERO'.
Use _PATH_* where where possible.
2000-12-09 09:35:55 +00:00
Kris Kennaway
f313a39933 Correct definition of MAXHOSTNAMELEN in ifdef'ed out code 2000-11-26 22:21:39 +00:00
Ruslan Ermilov
e97407b4f2 mdoc(7) police: use the new features of the Nm macro. 2000-11-20 20:10:44 +00:00
Ruslan Ermilov
726b61ab5f Avoid use of direct troff requests in mdoc(7) manual pages. 2000-11-10 17:46:15 +00:00
David Malone
25e9ca2b19 Attempt to fix problem with users being able to convince the crontab
program to read any file which is a valid crontab file.

The fix is based on that used in NetBSD and OpenBSD - we keep the
file open while the user is editing it. This means that files must
be edited in place. Cron attempts to warn you if your editor does
not do this. The fact that the file must be edited in place is also
noted in the man page.

This patch has been confirmed to work by atleast one person on
-security and has been tested locally.

Obtained from:	OpenBSD
2000-11-06 11:17:37 +00:00
Paul Richards
30cfb24129 Since -e and -r are right next to each other prompt before clobbering
a crontab you were planning to edit.
2000-10-15 00:35:34 +00:00
Andrey A. Chernov
3d99cebff4 Call login_close() to prevent parent from memory leaking in some
cases due to vfork()
2000-07-02 04:15:15 +00:00
Andrey A. Chernov
fe46d6a8f3 Prevent user from breaking his limits and restrictions or
abusing sendmail by any other way via MAILTO tag (since sendmail is running
from daemon). Now run sendmail from user, as any other cron user command.

Obtained from:	Inspired by OpenBSD, but implementation is different
2000-07-01 22:58:16 +00:00
Andrey A. Chernov
c38d808de1 Make sure argv gets NULL terminated if cron entry has >= MAX_ARGS arguments
Obtained from:	OpenBSD popen.c v1.3
2000-07-01 22:37:02 +00:00
Andrey A. Chernov
5e4a74ec02 Enable SIGCHLD to stop childs complaining to SIG_IGN of it.
It helps perl f.e.

Obtained from:	OpenBSD do_command.c v1.7
2000-07-01 21:25:33 +00:00
Guy Helmer
64ae78cb9d Catch and report fdopen failures. 2000-05-23 13:46:04 +00:00
Guy Helmer
5c7cba96bc Catch and report memory allocation failures. 2000-05-23 13:44:00 +00:00
Guy Helmer
d02e530b50 Allocate space for arrays of type "char *", not "char **".
Rev 1.8 made the type consistently incorrect.

Noted by:	Ben Smithurst <ben@scientia.demon.co.uk>
2000-04-30 15:57:00 +00:00
Guy Helmer
8261236de4 Fix a situation where a pointer which should point to dynamically
allocated memory was instead pointed to a static string.  A later
free() on the value of the pointer was a possible source of reported
"warning: pointer to wrong page" messages from cron.

Use consistent types in sizeof when malloc'ing memory for the
environment.

PR:		kern/12248, bin/11169, bin/9722
2000-04-28 15:31:28 +00:00
Sheldon Hearn
c3e1da6b96 Revive rev 1.12 (NetBSD improvements including @ shortcuts). 2000-03-14 14:51:55 +00:00
Guy Helmer
5b0e9f8cb1 Fix parsing of commands after @ keywords (@hourly, @daily, etc.).
Fix setting of "hour" bitmap when @hourly keyword is specified.

MFC candidate after 4.0-RELEASE.

Problem-found-by: Sheldon Hearn <sheldonh@uunet.co.za>
2000-03-13 19:21:17 +00:00
Sheldon Hearn
465c6ce100 Back out previous commit. The code is not ready for it. 2000-03-13 19:13:48 +00:00
Sheldon Hearn
874072c7bb Merge in NetBSD improvements:
* Clarify quoting value in of name = value pairs.
	* Describe the @reboot, @yearly, @annually, @monthly, @weekly,
	  @daily, @midnight and @hourly extensions.

PR:		17261
Submitted by:	MIHIRA Yoshiro <sanpei@sanpei.org>
Obtained from:	NetBSD
2000-03-08 11:48:01 +00:00
Peter Wemm
97d92980a9 $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
Chris Costello
866d7f2809 Bad reference of su(8) changed to su(1). 1999-08-14 06:34:50 +00:00
Sheldon Hearn
81f4b03663 Christen a BUGS section for an explanation of the impact of Daylight
Savings Time on cron(8). If we ever introduce some work-around code for
handling jobs scheduled for a time that "doesn't happen" due to DST,
the section should be renamed to IMPLEMENTATION NOTES.

PR:	10947
Reported by:	Scott Drassinower <scottd@cloud9.net>
Submitted by:	Seth Bromberger <seth@freebie.dp.ny.frb.org>
Reviewed by:	mpp
1999-08-11 13:00:19 +00:00
Nick Hibma
d2a864e4ba Changed 'overriding what /etc/passwd says' to 'overriding default set
by cron'

PR:		12520
Submitted by:	(not specified)
1999-07-27 16:39:02 +00:00
Peter Wemm
5ef4895832 This is a hack. Cron runs with stdin/out/err pointing to /dev/console,
which init thoughtfully revoke()'s when starting a getty on ttyv0.  This
Cron's popen() was passing these fd's through to cron children (ie:
sendmail, *not* normal cron jobs).  The side effects were usually
not noticed, but it tripped up postfix which did a sanity check to see
that stdin/out/err were open, and got EBADF even thought the fd's were
in use.  I seem to recall sendmail itself has hacks to work around
this problem, it had a checkfd012() function, possibly for this same
problem.  (Postfix has a workaround too now though..)

This is a hack, not a fix.  It's probably best to check and perhaps
close/reopen() /dev/console if needed each time around the event loop.
It would probably be useful to actually see any error messages from cron.
1999-04-06 04:31:23 +00:00
Daniel O'Callaghan
b9a1702cc2 y2k nit: print 4 digit years correctly.
PR:		9506
Submitted by:	Peter Jeremy <peter.jeremy@alcatel.com.au>
1999-01-16 01:51:03 +00:00
Matthew Dillon
4ef875d707 PR: bin/5572
Prevent cron from going crazy if the time steps.  For example, if you
    have a system with hundreds of users and lots of different crontabs
    and your time steps back an hour, the old cron would then attempt to
    run an hours worth of cron jobs in a few seconds.
1998-12-13 06:07:38 +00:00
Bruce Evans
78cda23056 Fixed printf format errors. 1998-07-06 20:28:08 +00:00
Philippe Charnier
f12a14713b .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq. 1998-03-23 08:31:20 +00:00
Bruce Evans
3d1442be99 Added forgotten new file for -Lfoo -lbar' -> foo/bar.a' change. 1998-03-08 00:19:19 +00:00
Bruce Evans
06c779979a Use foo/bar.a' instead of -Lfoo -lbar' for linking to static internal
libraries so that `ld -f' in can create correct dependencies for
yet-to-be-built libraries.

Get the default BINDIR correctly (by including ../Makefile.inc recursively.
Override the default it it is wrong.

Don't override defaults when the defaults are correct.
1998-03-07 09:48:14 +00:00
Bruce Evans
f34b67af93 Don't use LDDESTDIR. Just put the -L arg in LDADD. 1997-12-17 15:11:43 +00:00
Andrey A. Chernov
0435c15004 Log run-time parsing errors now
Use getpwnam before getpwuid since two users with same uids can exists
(affects new login classes code only)

The same fixes as in inetd: by default run `system crontab things' with
daemon login class now, not restrict them to user class breaking
compatibility with old way (so-called nobody limits problem)

Implement user[:group][/login-class] syntax in system crontab
for more flexible control (the same as in inetd)
1997-11-02 17:22:20 +00:00
Wolfram Schneider
bf5cbf3551 Sort cross refereces in section SEE ALSO. 1997-09-29 19:11:55 +00:00
Philippe Charnier
401e64688b Use err(3). Rewrote man page in mdoc format. 1997-09-15 06:39:25 +00:00
Paul Traina
72b4ef7179 NOSHARED takes a yes/YES no/NO value, not "true, false, hey mon!".
NOPIC is used to not generate a shared library, not NOSHARED.
Make NOSHARED advisory where appropriate.
Remove bogus NOSHARED (kbdio).
1997-06-29 06:03:42 +00:00
Warner Losh
6c3f552a31 compare return value from getopt against -1 rather than EOF, per the final
posix standard on the topic.
1997-03-31 05:11:47 +00:00
Peter Wemm
9efe2eccdd Tone down the paranoia a bit in from the previous commit. setusercontext()
automatically Does The Right Thing when lc == NULL, which just happens to
be what the extra code in cron was trying to do.  Simplify.
1997-03-14 14:45:30 +00:00
Peter Wemm
c00d650f25 For some reason, the old login class code didn't seem to be working here.
I suspect it was because the child exec code's parent was doing the
initial lookups, then forking, then doing other things (possibly trashing
the static data in the getpw*() buffer), then attempting to dereference
*pwd and *lc.  Also, no error checking appeared to be done - I've allowed
it to fall back to the old "become user" code on critical failure rather than
risk running a user's cron jobs as root.
1997-03-14 13:48:04 +00:00
Peter Wemm
476602a9d0 Revert $FreeBSD$ to $Id$ 1997-02-22 16:15:28 +00:00
Mike Pritchard
043c578eb4 crontab(5) incorrectly documented the dom/month arguments.
They have valid ranges of 1-31 and 1-12, not 0-31 and 0-12.
1997-02-13 07:16:12 +00:00
David Nugent
efc4a83cd0 Fix compile breakage: link against libutil. 1997-01-21 05:56:38 +00:00
David Nugent
b25b7bc1be Make cron login class savvy.
Use setusercontext() rather than setuid()/setgid()/setlogin()/initgroups()
which is all handled. Login environment is NOT set by this call as crontab
provides its own means of doing so.
1997-01-20 15:31:33 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Paul Traina
bdddbd2f3f Replace my "inane" usage of snprintf to copy strings with strncpy as
used by OpenBSD.  (Quite frankly, I think it's perfectly reasonable to
use snprintf to copy strings, given that the semantics for strncpy()
are utterly idiotic and there is no POSIX sstrncpy().)

While I'm at it, incorporate some of OpenBSD's bugfixes to cron.

NOT for 2.2
1996-12-17 00:55:20 +00:00
Paul Traina
482bfccc70 Close yet another buffer overrun 1996-12-16 18:21:00 +00:00
Wolfram Schneider
970402c71b Add sendmail option '-oi'
-oi	Do not take dots on a line by themselves as a
		message terminator.

Now this crontab entry works:
* * * *	*	echo foo; echo .; echo blah
1996-11-10 04:46:58 +00:00
Peter Wemm
73b2606378 personal (ie: with the crontab command) cron tabs were broken by the
last change. :-(
ie: /var/cron/log would report: .. cron[206]: (usage) CAN'T OPEN (%s/%s)
1996-09-10 03:38:20 +00:00
Paul Traina
30aaae26c6 Fix some buffer overflow problems... 1996-09-08 23:50:23 +00:00
Paul Traina
18fb104c5a Gratuitous whitespace change so that I can commit the source of the recent
buffer overflow patch.
Reviewed by:	pst
Submitted by:	Dave Andersen <angio@aros.net>
1996-08-05 00:50:02 +00:00
Paul Traina
b04b7cf55d Fix up some more buffer overflow problems. 1996-08-05 00:31:27 +00:00
Wolfram Schneider
3eacc3d7fd fix: debug flag 'test' cause endless loop
document debug flags

close PR bin/683
1996-06-30 22:11:51 +00:00