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/* filecntl.h - Definitions to set file descriptors to close-on-exec. */
/* Copyright (C) 1993 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash 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 2, or (at your option) any later
version.
Bash 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 Bash; see the file COPYING. If not, write to the Free Software
Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#if !defined (_FILECNTL_H_)
#define _FILECNTL_H_
#include <fcntl.h>
/* Definitions to set file descriptors to close-on-exec, the Posix way. */
#if !defined (FD_CLOEXEC)
#define FD_CLOEXEC 1
#endif
#define FD_NCLOEXEC 0
#define SET_CLOSE_ON_EXEC(fd) (fcntl ((fd), F_SETFD, FD_CLOEXEC))
#define SET_OPEN_ON_EXEC(fd) (fcntl ((fd), F_SETFD, FD_NCLOEXEC))
/* How to open a file in non-blocking mode, the Posix.1 way. */
#if !defined (O_NONBLOCK)
# if defined (O_NDELAY)
# define O_NONBLOCK O_NDELAY
# else
# define O_NONBLOCK 0
# endif
#endif
#endif /* ! _FILECNTL_H_ */
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