support/xsystem.c

   1 /* Error-checking replacement for "system".
   2    Copyright (C) 2023 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 <support/support.h>
  20 #include <support/check.h>
  21
  22 #include <support/xstdlib.h>
  23
  24 void
  25 xsystem (const char *cmd)
  26 {
  27   int ret = system (cmd);
  28
  29   if (ret == 0 && cmd == NULL)
  30     FAIL_EXIT1 ("Unable to spawn a shell for NULL command");
  31
  32   if (ret == 127)
  33     FAIL_EXIT1 ("Child terminated with status 127");
  34
  35   if (ret < 0)
  36     FAIL_EXIT1 ("system (\"%s\")", cmd);
  37 }