glibc/posix/tst-vfork3.c
Zack Weinberg ceaa98897c Add missing header files throughout the testsuite.
* crypt/md5.h: Test _LIBC with #if defined, not #if.
	* dirent/opendir-tst1.c: Include sys/stat.h.
	* dirent/tst-fdopendir.c: Include sys/stat.h.
	* dirent/tst-fdopendir2.c: Include stdlib.h.
	* dirent/tst-scandir.c: Include stdbool.h.
	* elf/tst-auditmod1.c: Include link.h and stddef.h.
	* elf/tst-tls15.c: Include stdlib.h.
	* elf/tst-tls16.c: Include stdlib.h.
	* elf/tst-tls17.c: Include stdlib.h.
	* elf/tst-tls18.c: Include stdlib.h.
	* iconv/tst-iconv6.c: Include endian.h.
	* iconvdata/bug-iconv11.c: Include limits.h.
	* io/test-utime.c: Include stdint.h.
	* io/tst-faccessat.c: Include sys/stat.h.
	* io/tst-fchmodat.c: Include sys/stat.h.
	* io/tst-fchownat.c: Include sys/stat.h.
	* io/tst-fstatat.c: Include sys/stat.h.
	* io/tst-futimesat.c: Include sys/stat.h.
	* io/tst-linkat.c: Include sys/stat.h.
	* io/tst-mkdirat.c: Include sys/stat.h and stdbool.h.
	* io/tst-mkfifoat.c: Include sys/stat.h and stdbool.h.
	* io/tst-mknodat.c: Include sys/stat.h and stdbool.h.
	* io/tst-openat.c: Include stdbool.h.
	* io/tst-readlinkat.c: Include sys/stat.h.
	* io/tst-renameat.c: Include sys/stat.h.
	* io/tst-symlinkat.c: Include sys/stat.h.
	* io/tst-unlinkat.c: Include stdbool.h.
	* libio/bug-memstream1.c: Include stdlib.h.
	* libio/bug-wmemstream1.c: Include stdlib.h.
	* libio/tst-fwrite-error.c: Include stdlib.h.
	* libio/tst-memstream1.c: Include stdlib.h.
	* libio/tst-memstream2.c: Include stdlib.h.
	* libio/tst-memstream3.c: Include stdlib.h.
	* malloc/tst-interpose-aux.c: Include stdint.h.
	* misc/tst-preadvwritev-common.c: Include sys/stat.h.
	* nptl/tst-basic7.c: Include limits.h.
	* nptl/tst-cancel25.c: Include pthread.h, not pthreadP.h.
	* nptl/tst-cancel4.c: Include stddef.h, limits.h, and sys/stat.h.
	* nptl/tst-cancel4_1.c: Include stddef.h.
	* nptl/tst-cancel4_2.c: Include stddef.h.
	* nptl/tst-cond16.c: Include limits.h.
	Use sysconf(_SC_PAGESIZE) instead of __getpagesize.
	* nptl/tst-cond18.c: Include limits.h.
	Use sysconf(_SC_PAGESIZE) instead of __getpagesize.
	* nptl/tst-cond4.c: Include stdint.h.
	* nptl/tst-cond6.c: Include stdint.h.
	* nptl/tst-stack2.c: Include limits.h.
	* nptl/tst-stackguard1.c: Include stddef.h.
	* nptl/tst-tls4.c: Include stdint.h. Don't include tls.h.
	* nptl/tst-tls4moda.c: Include stddef.h.
	Don't include stdio.h, unistd.h, or tls.h.
	* nptl/tst-tls4modb.c: Include stddef.h.
	Don't include stdio.h, unistd.h, or tls.h.
	* nptl/tst-tls5.h: Include stddef.h. Don't include stdlib.h or tls.h.
	* posix/tst-getaddrinfo2.c: Include stdio.h.
	* posix/tst-getaddrinfo5.c: Include stdio.h.
	* posix/tst-pathconf.c: Include sys/stat.h.
	* posix/tst-posix_fadvise-common.c: Include stdint.h.
	* posix/tst-preadwrite-common.c: Include sys/stat.h.
	* posix/tst-regex.c: Include stdint.h.
	Don't include spawn.h or spawn_int.h.
	* posix/tst-regexloc.c: Don't include spawn.h or spawn_int.h.
	* posix/tst-vfork3.c: Include sys/stat.h.
	* resolv/tst-bug18665-tcp.c: Include stdlib.h.
	* resolv/tst-res_hconf_reorder.c: Include stdlib.h.
	* resolv/tst-resolv-search.c: Include stdlib.h.
	* stdio-common/tst-fmemopen2.c: Include stdint.h.
	* stdio-common/tst-vfprintf-width-prec.c: Include stdlib.h.
	* stdlib/test-canon.c: Include sys/stat.h.
	* stdlib/tst-tls-atexit.c: Include stdbool.h.
	* string/test-memchr.c: Include stdint.h.
	* string/tst-cmp.c: Include stdint.h.
	* sysdeps/pthread/tst-timer.c: Include stdint.h.
	* sysdeps/unix/sysv/linux/tst-sync_file_range.c: Include stdint.h.
	* sysdeps/wordsize-64/tst-writev.c: Include limits.h and stdint.h.
	* sysdeps/x86_64/fpu/math-tests-arch.h: Include cpu-features.h.
	Don't include init-arch.h.
	* sysdeps/x86_64/multiarch/test-multiarch.h: Include cpu-features.h.
	Don't include init-arch.h.
	* sysdeps/x86_64/tst-auditmod10b.c: Include link.h and stddef.h.
	* sysdeps/x86_64/tst-auditmod3b.c: Include link.h and stddef.h.
	* sysdeps/x86_64/tst-auditmod4b.c: Include link.h and stddef.h.
	* sysdeps/x86_64/tst-auditmod5b.c: Include link.h and stddef.h.
	* sysdeps/x86_64/tst-auditmod6b.c: Include link.h and stddef.h.
	* sysdeps/x86_64/tst-auditmod6c.c: Include link.h and stddef.h.
	* sysdeps/x86_64/tst-auditmod7b.c: Include link.h and stddef.h.
	* time/clocktest.c: Include stdint.h.
	* time/tst-posixtz.c: Include stdint.h.
	* timezone/tst-timezone.c: Include stdint.h.
2017-02-16 17:33:18 -05:00

177 lines
4.7 KiB
C

/* Test for vfork functions.
Copyright (C) 2007-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2007.
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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <fcntl.h>
#include <mcheck.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/wait.h>
static int do_test (void);
static void do_prepare (void);
char *tmpdirname;
#define TEST_FUNCTION do_test ()
#define PREPARE(argc, argv) do_prepare ()
#include "../test-skeleton.c"
static void
run_script (const char *script, char *const argv[])
{
for (size_t i = 0; i < 5; i++)
{
pid_t pid = vfork ();
if (pid < 0)
FAIL_EXIT1 ("vfork failed: %m");
else if (pid == 0)
{
execvp (script, argv);
_exit (errno);
}
int status;
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
FAIL_EXIT1 ("waitpid failed");
else if (status != 0)
{
if (WIFEXITED (status))
FAIL_EXIT1 ("%s failed with status %d\n", script,
WEXITSTATUS (status));
else
FAIL_EXIT1 ("%s killed by signal %d\n", script,
WTERMSIG (status));
}
}
}
static int
do_test (void)
{
mtrace ();
const char *path = getenv ("PATH");
if (path == NULL)
path = "/bin";
char pathbuf[strlen (tmpdirname) + 1 + strlen (path) + 1];
strcpy (stpcpy (stpcpy (pathbuf, tmpdirname), ":"), path);
if (setenv ("PATH", pathbuf, 1) < 0)
{
puts ("setenv failed");
return 1;
}
/* Although manual states first argument should be the script name itself,
current execv{p,e} implementation allows it. */
char *argv00[] = { NULL };
run_script ("script0.sh", argv00);
char *argv01[] = { (char*) "script0.sh", NULL };
run_script ("script0.sh", argv01);
char *argv1[] = { (char *) "script1.sh", (char *) "1", NULL };
run_script ("script1.sh", argv1);
char *argv2[] = { (char *) "script2.sh", (char *) "2", NULL };
run_script ("script2.sh", argv2);
/* Same as before but with execlp. */
for (size_t i = 0; i < 5; i++)
{
pid_t pid = vfork ();
if (pid < 0)
{
printf ("vfork failed: %m\n");
return 1;
}
else if (pid == 0)
{
execlp ("script2.sh", "script2.sh", "3", NULL);
_exit (errno);
}
int status;
if (TEMP_FAILURE_RETRY (waitpid (pid, &status, 0)) != pid)
{
puts ("waitpid failed");
return 1;
}
else if (status != 0)
{
printf ("script2.sh failed with status %d\n", status);
return 1;
}
}
unsetenv ("PATH");
char *argv4[] = { (char *) "echo", (char *) "script 4", NULL };
run_script ("echo", argv4);
return 0;
}
static void
create_script (const char *script, const char *contents, size_t size)
{
int fd = open (script, O_WRONLY | O_CREAT, 0700);
if (fd < 0
|| TEMP_FAILURE_RETRY (write (fd, contents, size)) != size
|| fchmod (fd, S_IRUSR | S_IXUSR) < 0)
FAIL_EXIT1 ("could not write %s\n", script);
close (fd);
}
static void
do_prepare (void)
{
size_t len = strlen (test_dir) + sizeof ("/tst-vfork3.XXXXXX");
tmpdirname = malloc (len);
if (tmpdirname == NULL)
FAIL_EXIT1 ("out of memory");
strcpy (stpcpy (tmpdirname, test_dir), "/tst-vfork3.XXXXXX");
tmpdirname = mkdtemp (tmpdirname);
if (tmpdirname == NULL)
FAIL_EXIT1 ("could not create temporary directory");
char script0[len + sizeof "/script0.sh"];
char script1[len + sizeof "/script1.sh"];
char script2[len + sizeof "/script2.sh"];
strcpy (stpcpy (script0, tmpdirname), "/script0.sh");
strcpy (stpcpy (script1, tmpdirname), "/script1.sh");
strcpy (stpcpy (script2, tmpdirname), "/script2.sh");
add_temp_file (script0);
add_temp_file (script1);
add_temp_file (script2);
/* Need to make sure tmpdirname is at the end of the linked list. */
add_temp_file (tmpdirname);
const char content0[] = "#!/bin/sh\necho empty\n";
create_script (script0, content0, sizeof content0);
const char content1[] = "#!/bin/sh\necho script $1\n";
create_script (script1, content1, sizeof content1);
const char content2[] = "echo script $1\n";
create_script (script2, content2, sizeof content2);
}