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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 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
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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