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/* Auxiliary functions for the creation of subprocesses. OS/2 kLIBC API.
Copyright (C) 2001, 2003-2021 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2003.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _OS2_SPAWN_H
#define _OS2_SPAWN_H
/* Duplicates a file handle, making the copy uninheritable and ensuring the
result is none of STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO.
Returns -1 for a file handle that is equivalent to closed. */
extern int dup_safer_noinherit (int fd);
/* Undoes the effect of TEMPFD = dup_safer_noinherit (ORIGFD); */
extern void undup_safer_noinherit (int tempfd, int origfd);
/* Prepares an argument vector before calling spawn(). */
extern const char ** prepare_spawn (const char * const *argv,
char **mem_to_free);
#endif /* _OS2_SPAWN_H */
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