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Diffstat (limited to 'tests/test-posix_spawn1.c')
| -rw-r--r-- | tests/test-posix_spawn1.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/tests/test-posix_spawn1.c b/tests/test-posix_spawn1.c new file mode 100644 index 0000000..b944e14 --- /dev/null +++ b/tests/test-posix_spawn1.c @@ -0,0 +1,166 @@ +/* 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 "signature.h" +SIGNATURE_CHECK (posix_spawnp, int, (pid_t *, char const *, + posix_spawn_file_actions_t const *, + posix_spawnattr_t const *, + char *const[], char *const[])); +SIGNATURE_CHECK (posix_spawnattr_init, int, (posix_spawnattr_t *)); +SIGNATURE_CHECK (posix_spawnattr_destroy, int, (posix_spawnattr_t *)); +SIGNATURE_CHECK (posix_spawnattr_setsigmask, int, (posix_spawnattr_t *, + sigset_t const *)); +SIGNATURE_CHECK (posix_spawnattr_setflags, int, (posix_spawnattr_t *, short)); +SIGNATURE_CHECK (posix_spawn_file_actions_init, int, + (posix_spawn_file_actions_t *)); +SIGNATURE_CHECK (posix_spawn_file_actions_destroy, int, + (posix_spawn_file_actions_t *)); +SIGNATURE_CHECK (posix_spawn_file_actions_addclose, int, + (posix_spawn_file_actions_t *, int)); +SIGNATURE_CHECK (posix_spawn_file_actions_addopen, int, + (posix_spawn_file_actions_t *, int, char const *, int, + mode_t)); +SIGNATURE_CHECK (posix_spawn_file_actions_adddup2, int, + (posix_spawn_file_actions_t *, int, int)); + +#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_spawn1.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 ifd[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; + char line[80]; + int status; + int exitstatus; + + if (pipe (ifd) < 0 || (ifd[0] = fd_safer (ifd[0])) < 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, ifd[1], STDOUT_FILENO)) != 0 + || (err = posix_spawn_file_actions_addclose (&actions, ifd[1])) != 0 + || (err = posix_spawn_file_actions_addclose (&actions, ifd[0])) != 0 + || (err = posix_spawn_file_actions_addopen (&actions, STDIN_FILENO, "/dev/null", O_RDONLY, 0)) != 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 (ifd[1]); + fd = ifd[0]; + fp = fdopen (fd, "r"); + if (fp == NULL) + { + fprintf (stderr, "fdopen() failed\n"); + exit (1); + } + if (fread (line, 1, 80, fp) < 12) + { + fprintf (stderr, "could not read expected output\n"); + exit (1); + } + if (memcmp (line, "Halle Potta", 11) != 0) + { + fprintf (stderr, "read output is not the expected output"); + 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; +} |