53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/* filecntl.h - Definitions to set file descriptors to close-on-exec. */
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/* Copyright (C) 1993 Free Software Foundation, Inc.
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This file is part of GNU Bash, the Bourne Again SHell.
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Bash is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Bash is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Bash. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if !defined (_FILECNTL_H_)
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#define _FILECNTL_H_
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#include <fcntl.h>
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/* Definitions to set file descriptors to close-on-exec, the Posix way. */
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#if !defined (FD_CLOEXEC)
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#define FD_CLOEXEC 1
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#endif
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#define FD_NCLOEXEC 0
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#define SET_CLOSE_ON_EXEC(fd) (fcntl ((fd), F_SETFD, FD_CLOEXEC))
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#define SET_OPEN_ON_EXEC(fd) (fcntl ((fd), F_SETFD, FD_NCLOEXEC))
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/* How to open a file in non-blocking mode, the Posix.1 way. */
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#if !defined (O_NONBLOCK)
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# if defined (O_NDELAY)
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# define O_NONBLOCK O_NDELAY
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# else
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# define O_NONBLOCK 0
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# endif
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#endif
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/* Make sure O_BINARY and O_TEXT are defined to avoid Windows-specific code. */
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#if !defined (O_BINARY)
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# define O_BINARY 0
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#endif
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#if !defined (O_TEXT)
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# define O_TEXT 0
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#endif
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#endif /* ! _FILECNTL_H_ */
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