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76a50749 | 1 | /* Simple exec test, only a thread in the parent. |
d614a753 | 2 | Copyright (C) 2002-2020 Free Software Foundation, Inc. |
76a50749 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
76a50749 UD |
19 | |
20 | #include <errno.h> | |
21 | #include <paths.h> | |
22 | #include <pthread.h> | |
23 | #include <signal.h> | |
24 | #include <spawn.h> | |
25 | #include <stdbool.h> | |
26 | #include <stdio.h> | |
27 | #include <stdlib.h> | |
28 | #include <unistd.h> | |
29 | #include <sys/wait.h> | |
30 | ||
31 | ||
32 | static void * | |
33 | tf (void *arg) | |
34 | { | |
35 | pthread_t th = (pthread_t) arg; | |
36 | ||
37 | if (pthread_join (th, NULL) == 0) | |
38 | { | |
39 | puts ("thread in parent joined!?"); | |
40 | exit (1); | |
41 | } | |
42 | ||
43 | puts ("join in thread in parent returned!?"); | |
44 | exit (1); | |
45 | } | |
46 | ||
47 | ||
48 | static int | |
49 | do_test (void) | |
50 | { | |
51 | int fd[2]; | |
52 | if (pipe (fd) != 0) | |
53 | { | |
54 | puts ("pipe failed"); | |
55 | exit (1); | |
56 | } | |
57 | ||
58 | /* Not interested in knowing when the pipe is closed. */ | |
59 | if (sigignore (SIGPIPE) != 0) | |
60 | { | |
61 | puts ("sigignore failed"); | |
62 | exit (1); | |
63 | } | |
64 | ||
65 | posix_spawn_file_actions_t a; | |
66 | if (posix_spawn_file_actions_init (&a) != 0) | |
67 | { | |
68 | puts ("spawn_file_actions_init failed"); | |
69 | exit (1); | |
70 | } | |
71 | ||
72 | if (posix_spawn_file_actions_adddup2 (&a, fd[1], STDOUT_FILENO) != 0) | |
73 | { | |
74 | puts ("spawn_file_actions_adddup2 failed"); | |
75 | exit (1); | |
76 | } | |
77 | ||
78 | if (posix_spawn_file_actions_addclose (&a, fd[0]) != 0) | |
79 | { | |
80 | puts ("spawn_file_actions_addclose"); | |
81 | exit (1); | |
82 | } | |
83 | ||
84 | pthread_t th; | |
85 | if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0) | |
86 | { | |
87 | puts ("create failed"); | |
88 | exit (1); | |
89 | } | |
90 | ||
91 | pid_t pid; | |
92 | char *argv[] = { (char *) _PATH_BSHELL, (char *) "-c", (char *) "echo $$", | |
93 | NULL }; | |
94 | if (posix_spawn (&pid, _PATH_BSHELL, &a, NULL, argv, NULL) != 0) | |
95 | { | |
96 | puts ("spawn failed"); | |
97 | exit (1); | |
98 | } | |
99 | ||
100 | close (fd[1]); | |
101 | ||
102 | char buf[200]; | |
103 | ssize_t n; | |
104 | bool seen_pid = false; | |
105 | while (TEMP_FAILURE_RETRY ((n = read (fd[0], buf, sizeof (buf)))) > 0) | |
106 | { | |
107 | /* We only expect to read the PID. */ | |
108 | char *endp; | |
109 | long int rpid = strtol (buf, &endp, 10); | |
110 | ||
111 | if (*endp != '\n') | |
112 | { | |
113 | printf ("didn't parse whole line: \"%s\"\n", buf); | |
114 | exit (1); | |
115 | } | |
116 | if (endp == buf) | |
117 | { | |
118 | puts ("read empty line"); | |
119 | exit (1); | |
120 | } | |
121 | ||
122 | if (rpid != pid) | |
123 | { | |
124 | printf ("found \"%s\", expected PID %ld\n", buf, (long int) pid); | |
125 | exit (1); | |
126 | } | |
127 | ||
128 | if (seen_pid) | |
129 | { | |
130 | puts ("found more than one PID line"); | |
131 | exit (1); | |
132 | } | |
133 | ||
134 | seen_pid = true; | |
135 | } | |
136 | ||
137 | close (fd[0]); | |
138 | ||
139 | int status; | |
140 | int err = waitpid (pid, &status, 0); | |
141 | if (err != pid) | |
142 | { | |
143 | puts ("waitpid failed"); | |
144 | exit (1); | |
145 | } | |
146 | ||
147 | if (!seen_pid) | |
148 | { | |
149 | puts ("didn't get PID"); | |
150 | exit (1); | |
151 | } | |
152 | ||
153 | puts ("read correct PID"); | |
154 | ||
155 | return 0; | |
156 | } | |
157 | ||
158 | #define TEST_FUNCTION do_test () | |
159 | #include "../test-skeleton.c" |