delta/glibc.git/posix/tst-spawn3.c, branch maskray/grte-old

Update copyright dates with scripts/update-copyrights.

2018-01-01T00:32:25+00:00

	* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.

posix: Adapt tst-spawn{2,3} to use libsupport.

2017-06-28T19:48:55+00:00

Checked on x86_64-linux-gnu.

	* posix/tst-spawn2.c (do_test): Use libsupport.
	* posix/tst-spawn3.c (do_test): Likewise.

Update copyright dates with scripts/update-copyrights.

2017-01-01T00:14:16+00:00

posix: Fix open file action for posix_spawn on Linux

2016-09-28T21:07:35+00:00

On posix_spawn open file action (issued by posix_spawn_file_actions_addopen)
POSIX states that if fildes was already an open file descriptor, it shall be
closed before the new file is openedi [1].  This avoid pontential issues when
posix_spawn plus addopen action is called with the process already at maximum
number of file descriptor opened and also for multiple actions on single-open
special paths (like /dev/watchdog).

This fixes its behavior on Linux posix_spawn implementation and also adds
a tests to check for its behavior.

Checked on x86_64.

	* posix/Makefile (tests): Add tst-spawn3.
	* posix/tst-spawn3.c: New file.
	* sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Close file descriptor
	if it is already opened for open action.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_spawn_file_actions_addclose.html