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Diffstat (limited to 'sysdeps/pthread/tst-exec1.c')
| -rw-r--r-- | sysdeps/pthread/tst-exec1.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-exec1.c b/sysdeps/pthread/tst-exec1.c new file mode 100644 index 0000000000..892107d4c7 --- /dev/null +++ b/sysdeps/pthread/tst-exec1.c @@ -0,0 +1,156 @@ +/* Simple exec test, only a thread in the parent. + Copyright (C) 2002-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + 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 + <https://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <paths.h> +#include <pthread.h> +#include <signal.h> +#include <spawn.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/wait.h> +#include <support/xsignal.h> + + +static void * +tf (void *arg) +{ + pthread_t th = (pthread_t) arg; + + if (pthread_join (th, NULL) == 0) + { + puts ("thread in parent joined!?"); + exit (1); + } + + puts ("join in thread in parent returned!?"); + exit (1); +} + + +static int +do_test (void) +{ + int fd[2]; + if (pipe (fd) != 0) + { + puts ("pipe failed"); + exit (1); + } + + /* Not interested in knowing when the pipe is closed. */ + xsignal (SIGPIPE, SIG_IGN); + + posix_spawn_file_actions_t a; + if (posix_spawn_file_actions_init (&a) != 0) + { + puts ("spawn_file_actions_init failed"); + exit (1); + } + + if (posix_spawn_file_actions_adddup2 (&a, fd[1], STDOUT_FILENO) != 0) + { + puts ("spawn_file_actions_adddup2 failed"); + exit (1); + } + + if (posix_spawn_file_actions_addclose (&a, fd[0]) != 0) + { + puts ("spawn_file_actions_addclose"); + exit (1); + } + + pthread_t th; + if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0) + { + puts ("create failed"); + exit (1); + } + + pid_t pid; + char *argv[] = { (char *) _PATH_BSHELL, (char *) "-c", (char *) "echo $$", + NULL }; + if (posix_spawn (&pid, _PATH_BSHELL, &a, NULL, argv, NULL) != 0) + { + puts ("spawn failed"); + exit (1); + } + + close (fd[1]); + + char buf[200]; + ssize_t n; + bool seen_pid = false; + while (TEMP_FAILURE_RETRY ((n = read (fd[0], buf, sizeof (buf)))) > 0) + { + /* We only expect to read the PID. */ + char *endp; + long int rpid = strtol (buf, &endp, 10); + + if (*endp != '\n') + { + printf ("didn't parse whole line: \"%s\"\n", buf); + exit (1); + } + if (endp == buf) + { + puts ("read empty line"); + exit (1); + } + + if (rpid != pid) + { + printf ("found \"%s\", expected PID %ld\n", buf, (long int) pid); + exit (1); + } + + if (seen_pid) + { + puts ("found more than one PID line"); + exit (1); + } + + seen_pid = true; + } + + close (fd[0]); + + int status; + int err = waitpid (pid, &status, 0); + if (err != pid) + { + puts ("waitpid failed"); + exit (1); + } + + if (!seen_pid) + { + puts ("didn't get PID"); + exit (1); + } + + puts ("read correct PID"); + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |