Mercurial > illumos > illumos-gate
view usr/src/lib/libc/port/gen/dup.c @ 14022:19e11862653b
3713 Implement accept4()
3714 Implement pipe2()
3715 Implement dup3()
3716 Implement mkostemp() and mkostemps()
3719 so_socketpair syscall should preserve FD_CLOEXEC flag
Reviewed by: Dan McDonald <danmcd@nexenta.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Approved by: Garrett D'Amore <garrett@damore.org>
author | Theo Schlossnagle <jesus@omniti.com> |
---|---|
date | Thu, 11 Apr 2013 04:50:36 +0000 |
parents | 1e7f1f154004 |
children |
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/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* Copyright 2013, OmniTI Computer Consulting, Inc. All rights reserved. */ /* * Copyright 2010 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1988 AT&T */ /* All Rights Reserved */ #include "lint.h" #include <sys/types.h> #include <fcntl.h> #include <errno.h> #pragma weak _dup = dup int dup(int fildes) { return (fcntl(fildes, F_DUPFD, 0)); } #pragma weak _dup2 = dup2 int dup2(int fildes, int fildes2) { return (fcntl(fildes, F_DUP2FD, fildes2)); } int dup3(int fildes, int fildes2, int flags) { /* * The only valid flag is O_CLOEXEC. */ if (flags & ~O_CLOEXEC) { errno = EINVAL; return (-1); } /* * This call differs from dup2 such that it is an error when * fildes == fildes2 */ if (fildes == fildes2) { errno = EINVAL; return (-1); } return (fcntl(fildes, (flags == 0) ? F_DUP2FD : F_DUP2FD_CLOEXEC, fildes2)); }