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Diffstat (limited to 'tests/test-posix_spawn2.c')
| -rw-r--r-- | tests/test-posix_spawn2.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/tests/test-posix_spawn2.c b/tests/test-posix_spawn2.c new file mode 100644 index 0000000..ce61c1c --- /dev/null +++ b/tests/test-posix_spawn2.c @@ -0,0 +1,139 @@ +/* Test of posix_spawn() function. + Copyright (C) 2008-2013 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +/* Written by Bruno Haible <bruno@clisp.org>, 2008. */ + +#include <config.h> + +#include <spawn.h> + +#include <errno.h> +#include <fcntl.h> +#include <signal.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/wait.h> + +extern char **environ; + +#define CHILD_PROGRAM_FILENAME "test-posix_spawn2.sh" + +static int +fd_safer (int fd) +{ + if (0 <= fd && fd <= 2) + { + int f = fd_safer (dup (fd)); + int e = errno; + close (fd); + errno = e; + fd = f; + } + + return fd; +} + +int +main () +{ + char *argv[3] = { (char *) "/bin/sh", (char *) CHILD_PROGRAM_FILENAME, NULL }; + int ofd[2]; + sigset_t blocked_signals; + sigset_t fatal_signal_set; + posix_spawn_file_actions_t actions; + bool actions_allocated; + posix_spawnattr_t attrs; + bool attrs_allocated; + int err; + pid_t child; + int fd; + FILE *fp; + int written; + int status; + int exitstatus; + + if (pipe (ofd) < 0 || (ofd[1] = fd_safer (ofd[1])) < 0) + { + perror ("cannot create pipe"); + exit (1); + } + sigprocmask (SIG_SETMASK, NULL, &blocked_signals); + sigemptyset (&fatal_signal_set); + sigaddset (&fatal_signal_set, SIGINT); + sigaddset (&fatal_signal_set, SIGTERM); + sigaddset (&fatal_signal_set, SIGHUP); + sigaddset (&fatal_signal_set, SIGPIPE); + sigprocmask (SIG_BLOCK, &fatal_signal_set, NULL); + actions_allocated = false; + attrs_allocated = false; + if ((err = posix_spawn_file_actions_init (&actions)) != 0 + || (actions_allocated = true, + (err = posix_spawn_file_actions_adddup2 (&actions, ofd[0], STDIN_FILENO)) != 0 + || (err = posix_spawn_file_actions_addclose (&actions, ofd[0])) != 0 + || (err = posix_spawn_file_actions_addclose (&actions, ofd[1])) != 0 + || (err = posix_spawnattr_init (&attrs)) != 0 + || (attrs_allocated = true, + (err = posix_spawnattr_setsigmask (&attrs, &blocked_signals)) != 0 + || (err = posix_spawnattr_setflags (&attrs, POSIX_SPAWN_SETSIGMASK)) != 0) + || (err = posix_spawnp (&child, "/bin/sh", &actions, &attrs, argv, environ)) != 0)) + { + if (actions_allocated) + posix_spawn_file_actions_destroy (&actions); + if (attrs_allocated) + posix_spawnattr_destroy (&attrs); + sigprocmask (SIG_UNBLOCK, &fatal_signal_set, NULL); + errno = err; + perror ("subprocess failed"); + exit (1); + } + posix_spawn_file_actions_destroy (&actions); + posix_spawnattr_destroy (&attrs); + sigprocmask (SIG_UNBLOCK, &fatal_signal_set, NULL); + close (ofd[0]); + fd = ofd[1]; + fp = fdopen (fd, "w"); + if (fp == NULL) + { + fprintf (stderr, "fdopen() failed\n"); + exit (1); + } + written = fwrite ("Halle Potta\n", 1, 12, fp); + if (written < 12) + { + fprintf (stderr, "could not write input\n"); + exit (1); + } + fclose (fp); + status = 0; + while (waitpid (child, &status, 0) != child) + ; + if (!WIFEXITED (status)) + { + fprintf (stderr, "subprocess terminated with unexpected wait status %d\n", status); + exit (1); + } + exitstatus = WEXITSTATUS (status); + if (exitstatus != 0) + { + fprintf (stderr, "subprocess terminated with unexpected exit status %d\n", exitstatus); + exit (1); + } + return 0; +} |