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/*
* qstat
* by Steve Jankowski
*
* Battlefield Bad Company 2 query protocol
* Copyright 2009 Steven Hartland
*
* Licensed under the Artistic License, see LICENSE.txt for license terms
*
*/
#include <sys/types.h>
#ifndef _WIN32
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#else
#include <winsock.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include "debug.h"
#include "qstat.h"
#include "packet_manip.h"
query_status_t send_bfbc2_request_packet( struct qserver *server )
{
char buf[50];
int size = 0;
switch ( server->challenge )
{
case 0:
// Initial connect send serverInfo
size = 27;
memcpy( buf, "\x00\x00\x00\x00\x1b\x00\x00\x00\x01\x00\x00\x00\x0a\x00\x00\x00serverInfo\x00", size );
break;
case 1:
// All Done send quit
size = 21;
memcpy( buf, "\x01\x00\x00\x00\x15\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00quit\x00", size );
break;
case 2:
return DONE_FORCE;
}
debug( 3, "send_bfbc2_request_packet: state = %ld", server->challenge );
return send_packet( server, buf, size );
}
query_status_t deal_with_bfbc2_packet( struct qserver *server, char *rawpkt, int pktlen )
{
char *s, *end, *crlf;
int size, words, word = 0;
debug( 2, "processing..." );
if ( 17 > pktlen )
{
// Invalid packet
return REQ_ERROR;
}
rawpkt[pktlen-1] = '\0';
end = &rawpkt[pktlen-1];
s = rawpkt;
server->ping_total = time_delta( &packet_recv_time, &server->packet_time1 );
server->n_requests++;
// Header Sequence
s += 4;
// Packet Size
size = *(int*)s;
s += 4;
// Num Words
words = *(int*)s;
s += 4;
// Words
while ( words > 0 && s + 5 < end )
{
// Size
int ws = *(int*)s;
s += 4;
// Content
debug( 6, "word: %s\n", s );
switch ( word )
{
case 0:
// Status
break;
case 1:
// Server Name
// prevent CR & LF in the server name
crlf = strchr( s, '\015' );
if ( NULL != crlf )
{
*crlf = '\0';
}
crlf = strchr( s, '\012' );
if ( NULL != crlf )
{
*crlf = '\0';
}
server->server_name = strdup( s );
break;
case 2:
// Player Count
server->num_players = atoi( s );
break;
case 3:
// Max Players
server->max_players = atoi( s );
break;
case 4:
// Game Mode
add_rule( server, "gametype", s, NO_FLAGS );
break;
case 5:
// Map
server->map_name = strdup( s );
break;
}
word++;
s += ws + 1;
words--;
}
server->challenge++;
gettimeofday( &server->packet_time1, NULL );
if ( 1 == server->challenge )
{
send_bfbc2_request_packet( server );
return INPROGRESS;
}
return DONE_FORCE;
}
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