posix/tst-spawn4.c

   1 /* Check if posix_spawn does handle correctly ENOEXEC files.
   2    Copyright (C) 2018-2024 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 #include <tst-spawn.h>
  28
  29 static int
  30 do_test (void)
  31 {
  32   char *scriptname;
  33   int fd = create_temp_file ("tst-spawn4.", &scriptname);
  34   TEST_VERIFY_EXIT (fd >= 0);
  35
  36   const char script[] = "echo it should not happen";
  37   xwrite (fd, script, sizeof (script) - 1);
  38   xclose (fd);
  39
  40   TEST_VERIFY_EXIT (chmod (scriptname, 0x775) == 0);
  41
  42   PID_T_TYPE pid;
  43   int status;
  44
  45   /* Check if scripts without shebang are correctly not executed.  */
  46   status = POSIX_SPAWN (&pid, scriptname, NULL, NULL, (char *[]) { 0 },
  47                         (char *[]) { 0 });
  48   TEST_VERIFY_EXIT (status == ENOEXEC);
  49
  50   status = POSIX_SPAWNP (&pid, scriptname, NULL, NULL, (char *[]) { 0 },
  51                          (char *[]) { 0 });
  52   TEST_VERIFY_EXIT (status == ENOEXEC);
  53
  54   return 0;
  55 }
  56
  57 #include <support/test-driver.c>