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/*
* active port forwarder - software for secure forwarding
* Copyright (C) 2003,2004 jeremian <jeremian [at] poczta.fm>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
/* This example module put IP of the connected user into a body of the message */
#include <string.h>
/* There is no required headers for module to work.
* We just need string.h for memcpy and strlen functions.
*/
/* info
* return values:
* info about module
*/
char*
info(void)
{
return "An example module";
}
/* allow
* return values:
* 0 - allow to connect
* !=0 - drop the connection
*/
int
allow(char* host, char* port)
{
return 0; /* allow to connect */
}
/* filter
* return values:
* 0 - allow to transfer
* 1 - drop the packet
* 2 - drop the connection
*/
int
filter(char* host, unsigned char* message, int* length)
{
int n;
n = strlen(host);
message[*length] = '|';
memcpy(&message[*length+1], host, n);
*length += n+1;
return 0; /* allow to transfer */
}
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