/* 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, 59 Temple Place, Suite 330, Boston, MA 02111 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_ */