1 /* Wrap socket() to force the protocol to SCTP for STREAM connections.
3 * Thanks to Midgard Security Services for
4 * http://www.securiteam.com/tools/3D5PTR5QAE.html
5 * from whence I cribbed the code to find the old socket().
7 * Copyright 2003 La Monte HP Yarroll <piggy@acm.org>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer in the documentation and/or other materials provided with
19 * 3. The name of the author may not be used to endorse or promote
20 * products derived from this software without specific prior written
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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35 #include <string.h> /* for strncmp() */
37 #include "sctp_socket.h"
39 /* IPPROTO_SCTP SHOULD be defined in
40 * /usr/include/linux/in.h but probably isn't.
41 * It is an enum element, not a #define, so we can't easily check.
43 #define SHOULD_IPPROTO_SCTP 132
46 setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen)
50 if ((IPPROTO_TCP == level) && (TCP_NODELAY == optname)) {
51 level = SHOULD_IPPROTO_SCTP;
52 optname = SCTP_NODELAY;
55 return (real_setsockopt)(s, level, optname, optval, optlen);