sysdeps/mach/hurd/execve.c

   1 /* Copyright (C) 1991-2016 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <unistd.h>
  19 #include <hurd.h>
  20 #include <fcntl.h>
  21
  22 /* Replace the current process, executing FILE_NAME with arguments ARGV and
  23    environment ENVP.  ARGV and ENVP are terminated by NULL pointers.  */
  24 int
  25 __execve (const char *file_name, char *const argv[], char *const envp[])
  26 {
  27   error_t err;
  28   file_t file = __file_name_lookup (file_name, O_EXEC, 0);
  29
  30   if (file == MACH_PORT_NULL)
  31     return -1;
  32
  33   /* Hopefully this will not return.  */
  34   err = _hurd_exec (__mach_task_self (), file, argv, envp);
  35
  36   /* Oh well.  Might as well be tidy.  */
  37   __mach_port_deallocate (__mach_task_self (), file);
  38
  39   return __hurd_fail (err);
  40 }
  41
  42 weak_alias (__execve, execve)