Commit Graph

19 Commits

Author SHA1 Message Date
Alejandro Colomar
e2df287aad Don't redefine errno(3)
It is Undefined Behavior to declare errno (see NOTES in its manual page).
Instead of using the errno dummy declaration, use one that doesn't need
a comment.

Signed-off-by: Alejandro Colomar <alx@kernel.org>
2022-12-22 11:43:29 +01:00
Adam Sampson
0e6fe5e728 lib: rename Prog to shadow_progname, with only one definition
The build was failing with duplicate symbol errors with -fno-common.
This is the default in GCC 10 and later, and explicitly enabled in some
distributions to catch problems like this. There were two causes:

- Prog and shadow_logfd were defined in a header file that was included
  in multiple other files. Fix this by defining them once in
  shadowlog.c, and having extern declarations in the header.

- Most of the tools (except id/nologin) also define a Prog variable,
  which is not intended to alias the one in the library. Fix
  this by renaming Prog in the library to shadow_progname, which also
  matches the new accessor functions for it.
2021-12-25 22:41:58 +00:00
Serge Hallyn
79157cbad8 Make shadow_logfd and Prog not extern
Closes #444
Closes #465

Signed-off-by: Serge Hallyn <serge@hallyn.com>
2021-12-23 15:18:07 -06:00
Serge Hallyn
2b22a6909d libsubid: don't print error messages on stderr by default
Closes #325

Add a new subid_init() function which can be used to specify the
stream on which error messages should be printed.  (If you want to
get fancy you can redirect that to memory :)  If subid_init() is
not called, use stderr.  If NULL is passed, then /dev/null will
be used.

This patch also fixes up the 'Prog', which previously had to be
defined by any program linking against libsubid.  Now, by default
in libsubid it will show (subid).  Once subid_init() is called,
it will use the first variable passed to subid_init().

Signed-off-by: Serge Hallyn <serge@hallyn.com>
2021-05-15 12:38:55 -05:00
nekral-guest
e363962dd2 2012-02-13 Mike Frysinger <vapier@gentoo.org>
* lib/nscd.c: Add missing newline to error message.
	* lib/nscd.c: If nscd is installed but not in use, then running
	`nscd -i` will exit(1). We shouldn't warn in this case since this
	is not abnormal behavior.
2012-02-13 20:09:59 +00:00
nekral-guest
edbdb4bf03 * lib/nscd.c: Remove unused variable. 2011-10-18 20:16:00 +00:00
nekral-guest
f870cc7eab Miscellaneous:
* lib/prototypes, libmisc/basename.c (Basename): Input is a
	constant string.
	* lib/prototypes.h, lib/spawn.h, lib/spawn.c, src/userdel.c,
	lib/nscd.c, lib/Makefile.am: Delete spawn.h. Move from spawn.h to
	prototypes.h.
	* src/userdel.c: Remove unused variables.
	* lib/nscd.c: Remove unused header files.
	* lib/nscd.c: Add the program name to error messages.
	* lib/nscd.c: Indicate when nscd does not terminate normally (signal).
	* lib/spawn.c: Updated header.
	* lib/spawn.c: Flush stdout and stderr to avoid inheriting from
	ongoing buffers.
	* lib/spawn.c: Avoid implicit conversion of pointer to boolean.
	* lib/spawn.c: Replace perror by a complete message.
	* lib/spawn.c: Continue to wait for the child if another child
	terminates.
	* lib/prototypes.h: The name field from cleanup_info_mod is a
	constant string. (username).
2011-09-18 21:02:43 +00:00
nekral-guest
fc0057ff35 2011-08-20 Jonathan Nieder <jrnieder@gmail.com>
* lib/Makefile.am: Added lib/spawn.c and lib/spawn.h.
	* lib/nscd.c, lib/spawn.c, lib/spawn.h: It is not possible to
	differentiate between an nscd failure, and a failure to execute
	due to no nscd with posix_spawn. Use our own run_command routine.
	* src/userdel.c: Use run_command()
2011-08-20 13:33:38 +00:00
nekral-guest
e9a14b2409 * lib/nscd.c: Avoid redefinition of _GNU_SOURCE. 2008-08-31 17:27:26 +00:00
nekral-guest
de11907053 * lib/nscd.c: Make sure the file is not empty when configured
without nscd support.
2008-08-30 18:33:13 +00:00
nekral-guest
c59126a817 * configure.in, lib/nscd.h, lib/nscd.c: Added --with-nscd flag to
support systems without nscd.
2008-08-30 18:30:36 +00:00
nekral-guest
75e65f72c2 Re-indent. 2008-08-06 15:55:16 +00:00
nekral-guest
ef1a2a82dd * lib/nscd.c: Include defines.h.
* lib/nscd.c: Always warn when the nscd cache cannot be flushed.
	* lib/nscd.c: Avoid assignments in comparisons.
	* lib/nscd.c: Ignore the return value of fputs() when printing
	errors.
2008-06-10 20:01:55 +00:00
nekral-guest
39c9007f67 * lib/nscd.c, lib/nscd.h: Set the service parameter of
nscd_flush_cache() to const. This avoids a lot of warnings.
* lib/nscd.c: Include "nscd.h" to avoid inconsistent prototypes.
2008-01-06 13:57:17 +00:00
nekral-guest
39e5c0a1ab Fix some compilation warnings:
* src/login.c: "dereferencing type-punned pointer will break
   strict-aliasing rules", add a variable indirection: ptr_pam_user.
 * lib/commonio.c: do not initialize the sb stat structure.
 * lib/pwio.c, lib/shadowio.c, lib/sgroupio.c, lib/groupio.c:
   initialize the security context if WITH_SELINUX.
 * lib/nscd.c: The service argument is not const (used in the exec*
   parameters). This matches with the prototype definition.
 * src/groupmems.c: Avoid ++i when i is also used in the same line.
 * src/newusers.c: i is positive every time it is compared. Add
   cast to unsigned int.
 * src/nologin.c: Use a main() prototype with no arguments.
 * libmisc/getdate.y: Initialize the type and value fields of the
   terminating entry for each TABLE.
 * libmisc/tz.c: Use "TZ=CST6CDT" as the default timezone.
2007-11-19 20:25:36 +00:00
nekral-guest
4aafb131ca * NEWS, lib/nscd.c: Execute nscd -i instead of using the private
glibc socket to flush the nscd tables. This comes from the RedHat
  patch shadow-4.0.16-nscd.c.
* lib/commonio.c: Forbid inheritance of the passwd and group files
  to the spawed processes (like nscd). This comes from the RedHat
  patch shadow-4.0.17-notInheritFd.patch.
* lib/nscd.h: Update header.
2007-11-17 14:04:05 +00:00
nekral-guest
0fa9083026 [svn-upgrade] Integrating new upstream version, shadow (4.0.16) 2007-10-07 11:47:33 +00:00
nekral-guest
b48129fcbb [svn-upgrade] Integrating new upstream version, shadow (4.0.11) 2007-10-07 11:46:34 +00:00
nekral-guest
effd479bff [svn-upgrade] Integrating new upstream version, shadow (4.0.4) 2007-10-07 11:45:23 +00:00