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daeb1fa2 | 1 | /* Test posix_spawn setsid attribute. |
688903eb | 2 | Copyright (C) 2017-2018 Free Software Foundation, Inc. |
daeb1fa2 AZ |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <errno.h> | |
20 | #include <fcntl.h> | |
21 | #include <spawn.h> | |
22 | #include <stdbool.h> | |
23 | #include <stdio.h> | |
24 | #include <sys/resource.h> | |
25 | #include <unistd.h> | |
26 | ||
27 | #include <support/check.h> | |
28 | ||
29 | static void | |
30 | do_test_setsid (bool test_setsid) | |
31 | { | |
32 | pid_t sid, child_sid; | |
33 | int res; | |
34 | ||
35 | /* Current session ID. */ | |
36 | sid = getsid(0); | |
37 | if (sid == (pid_t) -1) | |
38 | FAIL_EXIT1 ("getsid (0): %m"); | |
39 | ||
40 | posix_spawnattr_t attrp; | |
41 | /* posix_spawnattr_init should not fail (it basically memset the | |
42 | attribute). */ | |
43 | posix_spawnattr_init (&attrp); | |
44 | if (test_setsid) | |
45 | { | |
46 | res = posix_spawnattr_setflags (&attrp, POSIX_SPAWN_SETSID); | |
47 | if (res != 0) | |
48 | { | |
49 | errno = res; | |
50 | FAIL_EXIT1 ("posix_spawnattr_setflags: %m"); | |
51 | } | |
52 | } | |
53 | ||
54 | /* Program to run. */ | |
55 | char *args[2] = { (char *) "true", NULL }; | |
56 | pid_t child; | |
57 | ||
58 | res = posix_spawnp (&child, "true", NULL, &attrp, args, environ); | |
59 | /* posix_spawnattr_destroy is noop. */ | |
60 | posix_spawnattr_destroy (&attrp); | |
61 | ||
62 | if (res != 0) | |
63 | { | |
64 | errno = res; | |
65 | FAIL_EXIT1 ("posix_spawnp: %m"); | |
66 | } | |
67 | ||
68 | /* Child should have a different session ID than parent. */ | |
69 | child_sid = getsid (child); | |
70 | ||
71 | if (child_sid == (pid_t) -1) | |
72 | FAIL_EXIT1 ("getsid (%i): %m", child); | |
73 | ||
74 | if (test_setsid) | |
75 | { | |
76 | if (child_sid == sid) | |
77 | FAIL_EXIT1 ("child session ID matched parent one"); | |
78 | } | |
79 | else | |
80 | { | |
81 | if (child_sid != sid) | |
82 | FAIL_EXIT1 ("child session ID did not match parent one"); | |
83 | } | |
84 | } | |
85 | ||
86 | static int | |
87 | do_test (void) | |
88 | { | |
89 | do_test_setsid (false); | |
90 | do_test_setsid (true); | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
95 | #include <support/test-driver.c> |