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12 Commits

Author SHA1 Message Date
Serge Hallyn
e8a2cfa7dc
Merge pull request #451 from hallyn/2021-12-05/license 2022-01-02 18:38:42 -06:00
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
f93cf255d4 Update licensing info 
Closes #238

Update all files to list SPDX license shortname.  Most files are
BSD 3 clause license.

The exceptions are:

serge@sl ~/src/shadow$ git grep SPDX-License | grep -v BSD-3-Clause
contrib/atudel:# SPDX-License-Identifier: BSD-4-Clause
lib/tcbfuncs.c: * SPDX-License-Identifier: 0BSD
libmisc/salt.c: * SPDX-License-Identifier: Unlicense
src/login_nopam.c: * SPDX-License-Identifier: Unlicense
src/nologin.c: * SPDX-License-Identifier: BSD-2-Clause
src/vipw.c: * SPDX-License-Identifier: GPL-2.0-or-later

Signed-off-by: Serge Hallyn <serge@hallyn.com>
 2021-12-23 19:36:50 -06:00
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
Thomas Abraham
82fa6eccf9 lib/spawn.c run_command: don't loop forever if waitpid() is returning ECHILD 
If SIGCHILD is being ignored, waitpid() will forever error with ECHILD and
this loop with never end, so don't loop if it errors with ECHILD.
 2019-05-06 14:26:14 -04:00
Thomas Abraham
8d39357c84 Revert "lib/spawn.c run_command: don't loop forever if waitpid() is returning ECHILD" 
This reverts commit 1697c192ac.
 2019-05-06 14:23:58 -04:00
Thomas Abraham
1697c192ac lib/spawn.c run_command: don't loop forever if waitpid() is returning ECHILD 
If SIGCHILD is being ignored, waitpid() will forever error with ECHILD and
this loop with never end, so don't loop if it erros with ECHILD.
 2019-04-25 14:56:22 -04:00
Tomas Mraz
fb97da1ce1 Fix some issues found in Coverity scan. 2018-10-10 12:22:04 +02:00
nekral-guest
704f28df98 * lib/prototypes.h, libmisc/cleanup.c, lib/spawn.c, src/chage.c: 
Add splint annotations.
 2011-10-18 20:23:33 +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