| /* Test posix_spawn setsid attribute. |
| Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <spawn.h> |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <sys/resource.h> |
| #include <unistd.h> |
| |
| #include <support/check.h> |
| |
| static void |
| do_test_setsid (bool test_setsid) |
| { |
| pid_t sid, child_sid; |
| int res; |
| |
| /* Current session ID. */ |
| sid = getsid(0); |
| if (sid == (pid_t) -1) |
| FAIL_EXIT1 ("getsid (0): %m"); |
| |
| posix_spawnattr_t attrp; |
| /* posix_spawnattr_init should not fail (it basically memset the |
| attribute). */ |
| posix_spawnattr_init (&attrp); |
| if (test_setsid) |
| { |
| res = posix_spawnattr_setflags (&attrp, POSIX_SPAWN_SETSID); |
| if (res != 0) |
| { |
| errno = res; |
| FAIL_EXIT1 ("posix_spawnattr_setflags: %m"); |
| } |
| } |
| |
| /* Program to run. */ |
| char *args[2] = { (char *) "true", NULL }; |
| pid_t child; |
| |
| res = posix_spawnp (&child, "true", NULL, &attrp, args, environ); |
| /* posix_spawnattr_destroy is noop. */ |
| posix_spawnattr_destroy (&attrp); |
| |
| if (res != 0) |
| { |
| errno = res; |
| FAIL_EXIT1 ("posix_spawnp: %m"); |
| } |
| |
| /* Child should have a different session ID than parent. */ |
| child_sid = getsid (child); |
| |
| if (child_sid == (pid_t) -1) |
| FAIL_EXIT1 ("getsid (%i): %m", child); |
| |
| if (test_setsid) |
| { |
| if (child_sid == sid) |
| FAIL_EXIT1 ("child session ID matched parent one"); |
| } |
| else |
| { |
| if (child_sid != sid) |
| FAIL_EXIT1 ("child session ID did not match parent one"); |
| } |
| } |
| |
| static int |
| do_test (void) |
| { |
| do_test_setsid (false); |
| do_test_setsid (true); |
| |
| return 0; |
| } |
| |
| #include <support/test-driver.c> |