1 /*
2 * Copyright (c) 2006-2010 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24 #ifndef NO_SYSCALL_LEGACY
25
26 #define _NONSTD_SOURCE
27 #include <sys/cdefs.h>
28
29 /*
30 * We need conformance on so that EOPNOTSUPP=102. But the routine symbol
31 * will still be the legacy (undecorated) one.
32 */
33 #undef __DARWIN_UNIX03
34 #define __DARWIN_UNIX03 1
35
36 #include <sys/socket.h>
37 #include "_errno.h"
38
39 ssize_t __recvfrom_nocancel(int, void *, size_t, int, struct sockaddr * __restrict, socklen_t * __restrict);
40
41 /*
42 * recvfrom stub, legacy version
43 */
44 ssize_t
recvfrom(int s,void * buf,size_t len,int flags,struct sockaddr * __restrict from,socklen_t * __restrict fromlen)45 recvfrom(int s, void *buf, size_t len, int flags, struct sockaddr * __restrict from, socklen_t * __restrict fromlen)
46 {
47 int ret = __recvfrom_nocancel(s, buf, len, flags, from, fromlen);
48
49 /* use ENOTSUP for legacy behavior */
50 if (ret < 0 && errno == EOPNOTSUPP) {
51 errno = ENOTSUP;
52 }
53 return ret;
54 }
55
56 #endif
57