1254409Sjilles/*- 2254409Sjilles * Copyright (c) 2012 Jukka A. Ukkonen 3254409Sjilles * All rights reserved. 4254409Sjilles * 5254409Sjilles * This software was developed by Jukka Ukkonen for FreeBSD. 6254409Sjilles * 7254409Sjilles * Redistribution and use in source and binary forms, with or without 8254409Sjilles * modification, are permitted provided that the following conditions 9254409Sjilles * are met: 10254409Sjilles * 1. Redistributions of source code must retain the above copyright 11254409Sjilles * notice, this list of conditions and the following disclaimer. 12254409Sjilles * 2. Redistributions in binary form must reproduce the above copyright 13254409Sjilles * notice, this list of conditions and the following disclaimer in the 14254409Sjilles * documentation and/or other materials provided with the distribution. 15254409Sjilles * 16254409Sjilles * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17254409Sjilles * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18254409Sjilles * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19254409Sjilles * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20254409Sjilles * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21254409Sjilles * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22254409Sjilles * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23254409Sjilles * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24254409Sjilles * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25254409Sjilles * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26254409Sjilles * SUCH DAMAGE. 27254409Sjilles */ 28254409Sjilles 29254409Sjilles#include <sys/cdefs.h> 30254409Sjilles__FBSDID("$FreeBSD$"); 31254409Sjilles 32254409Sjilles#include "namespace.h" 33254409Sjilles#include <unistd.h> 34254409Sjilles#include <fcntl.h> 35254409Sjilles#include <errno.h> 36254409Sjilles#include "un-namespace.h" 37254409Sjilles 38288028Srodrigcint __dup3(int, int, int); 39288008Srodrigc 40254409Sjillesint 41254409Sjilles__dup3(int oldfd, int newfd, int flags) 42254409Sjilles{ 43254409Sjilles int how; 44254409Sjilles 45254409Sjilles if (oldfd == newfd) { 46254409Sjilles errno = EINVAL; 47254409Sjilles return (-1); 48254409Sjilles } 49254409Sjilles 50254409Sjilles if (flags & ~O_CLOEXEC) { 51254409Sjilles errno = EINVAL; 52254409Sjilles return (-1); 53254409Sjilles } 54254409Sjilles 55254409Sjilles how = (flags & O_CLOEXEC) ? F_DUP2FD_CLOEXEC : F_DUP2FD; 56254409Sjilles 57254409Sjilles return (_fcntl(oldfd, how, newfd)); 58254409Sjilles} 59254409Sjilles 60254409Sjilles__weak_reference(__dup3, dup3); 61254409Sjilles__weak_reference(__dup3, _dup3); 62