Libc-498.1.5.tar.gz

[apple/libc.git] / sys / recvmsg.c

/*
 * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * We need conformance on so that EOPNOTSUPP=102.  But the routine symbol
 * will still be the legacy (undecorated) one.
 */
#undef __DARWIN_UNIX03
#define __DARWIN_UNIX03		1

#include <sys/socket.h>
#include <errno.h>

ssize_t __recvmsg_nocancel(int, struct msghdr *, int);

/*
 * recvmsg stub, legacy version
 */
ssize_t
recvmsg(int s, struct msghdr *msg, int flags)
{
	int ret = __recvmsg_nocancel(s, msg, flags);

	/* use ENOTSUP for legacy behavior */
	if (ret < 0 && errno == EOPNOTSUPP)
		errno = ENOTSUP;
	return ret;
}