posix/tst-spawn4.c

   1 /* Check if posix_spawn does handle correctly ENOEXEC files.
   2    Copyright (C) 2018-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <spawn.h>
  20 #include <errno.h>
  21 #include <unistd.h>
  22 #include <sys/stat.h>
  23
  24 #include <support/xunistd.h>
  25 #include <support/check.h>
  26 #include <support/temp_file.h>
  27
  28 static int
  29 do_test (void)
  30 {
  31   char *scriptname;
  32   int fd = create_temp_file ("tst-spawn4.", &scriptname);
  33   TEST_VERIFY_EXIT (fd >= 0);
  34
  35   const char script[] = "echo it should not happen";
  36   xwrite (fd, script, sizeof (script) - 1);
  37   xclose (fd);
  38
  39   TEST_VERIFY_EXIT (chmod (scriptname, 0x775) == 0);
  40
  41   pid_t pid;
  42   int status;
  43
  44   /* Check if scripts without shebang are correctly not executed.  */
  45   status = posix_spawn (&pid, scriptname, NULL, NULL, (char *[]) { 0 },
  46                         (char *[]) { 0 });
  47   TEST_VERIFY_EXIT (status == ENOEXEC);
  48
  49   status = posix_spawnp (&pid, scriptname, NULL, NULL, (char *[]) { 0 },
  50                          (char *[]) { 0 });
  51   TEST_VERIFY_EXIT (status == ENOEXEC);
  52
  53   return 0;
  54 }
  55
  56 #include <support/test-driver.c>