1  /* Auxiliary functions for the creation of subprocesses.  OS/2 kLIBC API.
       2     Copyright (C) 2001, 2003-2021 Free Software Foundation, Inc.
       3     Written by Bruno Haible <bruno@clisp.org>, 2003.
       4  
       5     This program is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU General Public License as published by
       7     the Free Software Foundation; either version 3 of the License, or
       8     (at your option) any later version.
       9  
      10     This program 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
      13     GNU General Public License for more details.
      14  
      15     You should have received a copy of the GNU General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #ifndef _OS2_SPAWN_H
      19  #define _OS2_SPAWN_H
      20  
      21  /* Duplicates a file handle, making the copy uninheritable and ensuring the
      22     result is none of STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO.
      23     Returns -1 for a file handle that is equivalent to closed.  */
      24  extern int dup_safer_noinherit (int fd);
      25  
      26  /* Undoes the effect of TEMPFD = dup_safer_noinherit (ORIGFD);  */
      27  extern void undup_safer_noinherit (int tempfd, int origfd);
      28  
      29  /* Prepares an argument vector before calling spawn().  */
      30  extern const char ** prepare_spawn (const char * const *argv,
      31                                      char **mem_to_free);
      32  
      33  #endif /* _OS2_SPAWN_H */