glibc/posix/tst-spawn4-compat.c

/* Check if posix_spawn does handle correctly ENOEXEC files.
   Copyright (C) 2018-2019 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   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 <spawn.h>
#include <errno.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/wait.h>

#include <support/xunistd.h>
#include <support/check.h>
#include <support/temp_file.h>

#include <shlib-compat.h>
#if TEST_COMPAT (libc, GLIBC_2_0, GLIBC_2_15)

compat_symbol_reference (libc, posix_spawn, posix_spawn, GLIBC_2_2);
compat_symbol_reference (libc, posix_spawnp, posix_spawnp, GLIBC_2_2);

static int
do_test (void)
{
  char *scriptname;
  int fd = create_temp_file ("tst-spawn4.", &scriptname);
  TEST_VERIFY_EXIT (fd >= 0);

  const char script[] = "exit 65";
  xwrite (fd, script, sizeof (script) - 1);
  xclose (fd);

  TEST_VERIFY_EXIT (chmod (scriptname, 0x775) == 0);

  pid_t pid;
  int status;

  /* For compat symbol it verifies that trying to issued a shell script
     without a shebang is correctly executed.  */
  status = posix_spawn (&pid, scriptname, NULL, NULL, (char *[]) { 0 },
                        (char *[]) { 0 });
  TEST_VERIFY_EXIT (status == 0);

  TEST_VERIFY_EXIT (waitpid (pid, &status, 0) == pid);
  TEST_VERIFY_EXIT (WIFEXITED (status) == 1 && WEXITSTATUS (status) == 65);

  status = posix_spawnp (&pid, scriptname, NULL, NULL, (char *[]) { 0 },
                         (char *[]) { 0 });
  TEST_VERIFY_EXIT (status == 0);

  TEST_VERIFY_EXIT (waitpid (pid, &status, 0) == pid);
  TEST_VERIFY_EXIT (WIFEXITED (status) == 1 && WEXITSTATUS (status) == 65);

  return 0;
}
#else
static int
do_test (void)
{
  return 77;
}
#endif

#include <support/test-driver.c>