1/* Further tests for spawn in case of invalid binary paths.
2 Copyright (C) 2016-2022 Free Software Foundation, Inc.
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 <https://www.gnu.org/licenses/>. */
18
19#include <spawn.h>
20#include <error.h>
21#include <errno.h>
22#include <stdlib.h>
23#include <string.h>
24#include <unistd.h>
25#include <sys/wait.h>
26#include <stdio.h>
27
28#include <support/check.h>
29
30int
31do_test (void)
32{
33 /* Check if posix_spawn correctly returns an error and an invalid pid
34 by trying to spawn an invalid binary. */
35
36 const char *program = "/path/to/invalid/binary";
37 char * const args[] = { 0 };
38 pid_t pid = -1;
39
40 int ret = posix_spawn (pid: &pid, path: program, file_actions: 0, attrp: 0, argv: args, envp: environ);
41 if (ret != ENOENT)
42 {
43 errno = ret;
44 FAIL_EXIT1 ("posix_spawn: %m");
45 }
46
47 /* POSIX states the value returned on pid variable in case of an error
48 is not specified. GLIBC will update the value iff the child
49 execution is successful. */
50 if (pid != -1)
51 FAIL_EXIT1 ("posix_spawn returned pid != -1 (%i)", (int) pid);
52
53 /* Check if no child is actually created. */
54 ret = waitpid (pid: -1, NULL, options: 0);
55 if (ret != -1 || errno != ECHILD)
56 FAIL_EXIT1 ("waitpid: %m)");
57
58 /* Same as before, but with posix_spawnp. */
59 char *args2[] = { (char*) program, 0 };
60
61 ret = posix_spawnp (pid: &pid, file: args2[0], file_actions: 0, attrp: 0, argv: args2, envp: environ);
62 if (ret != ENOENT)
63 {
64 errno = ret;
65 FAIL_EXIT1 ("posix_spawnp: %m");
66 }
67
68 if (pid != -1)
69 FAIL_EXIT1 ("posix_spawnp returned pid != -1 (%i)", (int) pid);
70
71 ret = waitpid (pid: -1, NULL, options: 0);
72 if (ret != -1 || errno != ECHILD)
73 FAIL_EXIT1 ("waitpid: %m)");
74
75 return 0;
76}
77
78#include <support/test-driver.c>
79

source code of glibc/posix/tst-spawn2.c