/usr/share/doc/libsctp-dev/examples/sctp_bind.c is in libsctp-dev 1.0.17+dfsg-1+b1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | /* Wrap bind() to force the protocol for STREAM connections to SCTP.
*
* Thanks to Midgard Security Services for
* http://www.securiteam.com/tools/3D5PTR5QAE.html
* from whence I cribbed the code to find the old bind().
*
* gcc sctp_socket.c sctp_bind.c -o sctp_socket.so -ldl -shared -O2 -s
* export LD_PRELOAD=./sctp_socket.so
*
* Copyright 2003 La Monte HP Yarroll <piggy@acm.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with
* the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <string.h> /* for strncmp() */
#include <stdio.h>
#include "sctp_socket.h"
/* IPPROTO_SCTP SHOULD be defined in
* /usr/include/linux/in.h but probably isn't.
* It is an enum element, not a #define, so we can't easily check.
*/
#define SHOULD_IPPROTO_SCTP 132
int
bind(int sockfd, const struct sockaddr *my_addr, socklen_t addrlen)
{
_sctp_load_libs();
/* STUB. The intent is to allow us to substitute an elaborate call to
* bindx() for the initial call to bind(). TBD.
*/
return (real_bind)(sockfd, my_addr, addrlen);
}
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