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This patch adds support for the POSIX_SPAWN_SETSID flag. It was recently accepted by the Austin Group: http://austingroupbugs.net/view.php?id=1044 Checked on x86_64 Daurnimator <quae@daurnimator.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> [BZ #21340] * posix/Makefile (tests): Add tst-posix_spawn-setsid to list of tests. * posix/spawn.h: define POSIX_SPAWN_SETSID flag. * posix/spawnattr_setflags.c (ALL_FLAGS): Add POSIX_SPAWN_SETSID to valid flags. * posix/tst-posix_spawn-setsid.c: Add test for POSIX_SPAWN_SETSID. * sysdeps/mach/hurd/spawni.c (__spawni): Implementation of POSIX_SPAWN_SETSID. * sysdeps/posix/spawni.c (__spawni): Likewise. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Likewise. * NEWS: Add note about POSIX_SPAWN_SETSID support.
96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/* Test posix_spawn setsid attribute.
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Copyright (C) 2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <spawn.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <sys/resource.h>
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#include <unistd.h>
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#include <support/check.h>
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static void
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do_test_setsid (bool test_setsid)
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{
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pid_t sid, child_sid;
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int res;
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/* Current session ID. */
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sid = getsid(0);
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if (sid == (pid_t) -1)
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FAIL_EXIT1 ("getsid (0): %m");
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posix_spawnattr_t attrp;
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/* posix_spawnattr_init should not fail (it basically memset the
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attribute). */
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posix_spawnattr_init (&attrp);
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if (test_setsid)
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{
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res = posix_spawnattr_setflags (&attrp, POSIX_SPAWN_SETSID);
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if (res != 0)
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{
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errno = res;
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FAIL_EXIT1 ("posix_spawnattr_setflags: %m");
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}
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}
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/* Program to run. */
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char *args[2] = { (char *) "true", NULL };
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pid_t child;
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res = posix_spawnp (&child, "true", NULL, &attrp, args, environ);
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/* posix_spawnattr_destroy is noop. */
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posix_spawnattr_destroy (&attrp);
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if (res != 0)
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{
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errno = res;
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FAIL_EXIT1 ("posix_spawnp: %m");
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}
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/* Child should have a different session ID than parent. */
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child_sid = getsid (child);
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if (child_sid == (pid_t) -1)
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FAIL_EXIT1 ("getsid (%i): %m", child);
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if (test_setsid)
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{
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if (child_sid == sid)
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FAIL_EXIT1 ("child session ID matched parent one");
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}
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else
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{
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if (child_sid != sid)
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FAIL_EXIT1 ("child session ID did not match parent one");
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}
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}
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static int
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do_test (void)
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{
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do_test_setsid (false);
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do_test_setsid (true);
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return 0;
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}
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#include <support/test-driver.c>
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