lib/os2-spawn.h

   1 /* Auxiliary functions for the creation of subprocesses.  OS/2 kLIBC API.
   2    Copyright (C) 2001, 2003-2024 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 */