/* Duplicate a file descriptor result, avoiding clobbering
STD{IN,OUT,ERR}_FILENO, with specific flags.
- Copyright (C) 2001, 2004-2006, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2004-2006, 2009-2013 Free Software Foundation, Inc.
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
#include <fcntl.h>
#include <unistd.h>
-#include "cloexec.h"
-
-#ifndef O_CLOEXEC
-# define O_CLOEXEC 0
-#endif
-
/* Like dup, but do not return STDIN_FILENO, STDOUT_FILENO, or
STDERR_FILENO. If FLAG contains O_CLOEXEC, behave like
fcntl(F_DUPFD_CLOEXEC) rather than fcntl(F_DUPFD). */
int
dup_safer_flag (int fd, int flag)
{
- if (flag & O_CLOEXEC)
- {
-#if defined F_DUPFD_CLOEXEC && !REPLACE_FCHDIR
- return fcntl (fd, F_DUPFD_CLOEXEC, STDERR_FILENO + 1);
-#else
- /* fd_safer_flag calls us back, but eventually the recursion
- unwinds and does the right thing. */
- fd = dup_cloexec (fd);
- return fd_safer_flag (fd, flag);
-#endif
- }
- return dup_safer (fd);
+ return fcntl (fd, (flag & O_CLOEXEC) ? F_DUPFD_CLOEXEC : F_DUPFD,
+ STDERR_FILENO + 1);
}