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openmohaa/code/gamespy/sv_gqueryreporting.c
smallmodel a2bbf6cff8
Use functions that return master host information 
This splits gamespy client-specific and server-specific code and add common gamespy code to provide more flexibility in the future
2025-04-22 21:40:34 +02:00

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/*
===========================================================================
Copyright (C) 2025 the OpenMoHAA team
This file is part of OpenMoHAA source code.
OpenMoHAA source code 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.
OpenMoHAA source code 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 OpenMoHAA source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
/******
.c
GameSpy Query & Reporting SDK
Copyright 2000 GameSpy Industries, Inc
18002 Skypark Circle
Irvine, CA 92614
(949)798-4200
Fax(949)798-4299
******
Please see the GameSpy Query & Reporting SDK documentation for more
information
Updated 6/9/99 - DDW
Added get_sockaddrin function, and use for resolving
Made portable with additions from CEngine code
Double check that we don't bind to localhost (instead use INADDR_ANY)
Updated 9/1/99 - DDW
Add the ability to pass in 0 as the queryport, to allocate it
automatically.
Updated 10/11/99 - DDW
TCP Heartbeat support (#define TCP_HEARTBEATS)
Updated 11/20/99 - BGW
Split goa_process_queries into two functions: goa_check_queries() and
goa_check_send_heartbeat().
Updated 3/19/00 - DDW
Added Dreamcast CE Support
Updated 4/5/00 - DDW
Added Dreamcast Shinobi Support (use sendto/recvfrom for UDP sockets to work
around connect bug)
Updated 4/17/00 - DDW
Use a single socket for heartbeats/queries (conserve sockets on DC)
Updated 5/23/00 - DDW
Developer SDK renamed "Query & Reporting SDK"
Encapsulate global data in a structure so multiple simultaneous instances
can run in the same process. Most developers can just pass NULL for the extra
parameter.
qr_init now scans for an open port, starting from a base port.
heartbeats are sent every 30 seconds now until the first query is received,
then they are sent every 5 minutes as recommened by the developer spec
this helps remove the problem of dropped heartbeats causing a server to not
show up for 5 minutes.
Updated 10/2/00 - DDW
Added qr_process_queries_no_heartbeat, so you can advertise a server on the
LAN only.
Updated 11/9/00 - DDW
Use common alloc/re-alloc functions
******/
/********
INCLUDES
********/
#if defined(applec) || defined(THINK_C) || defined(__MWERKS__) && !defined(__KATANA__) && !defined(__mips64)
#include "::nonport.h"
#else
#include "nonport.h"
#endif
#include "sv_gqueryreporting.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#if !defined(UNDER_CE) && !defined(__KATANA__)
#include <assert.h>
#else
#define assert(a)
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*****
TCP_HEARTBEATS
Define this to use reliable heartbeats. Only needed for certain
classes of peer-to-peer games, please contact us if you are unsure
whether you need this or not.
******/
//#define TCP_HEARTBEATS
/********
TYPEDEFS
********/
typedef unsigned char uchar;
#if defined(_LINUX) || defined(__linux__)
typedef unsigned int qrsocklen_t;
#else
typedef int qrsocklen_t;
#endif
typedef enum
{
qtunknown,
qtbasic,
qtinfo,
qtrules,
qtplayers,
qtstatus,
qtpackets,
qtecho,
qtsecure
} query_t;
typedef struct qr_implementation_s
{
SOCKET querysock;
SOCKET hbsock;
char gamename[64];
char secret_key[128];
qr_querycallback_t qr_basic_callback;
qr_querycallback_t qr_info_callback;
qr_querycallback_t qr_rules_callback;
qr_querycallback_t qr_players_callback;
unsigned long lastheartbeat;
int queryid;
int packetnumber;
int qport;
char no_query;
struct sockaddr_in hbaddr;
qr_cdkey_process_t cdkeyprocess;
void* udata;
}* qr_t;
/********
VARS
********/
static const char* queries[] = {"", "basic", "info", "rules", "players", "status", "packets", "echo", "secure"};
static struct sockaddr_in hbaddr;
struct qr_implementation_s static_rec = {INVALID_SOCKET, INVALID_SOCKET};
static qr_t current_rec = &static_rec;
//char qr_hostname[64] = MASTER_ADDR;
static struct sockaddr_in MasterList[8];
static char keyvalue[8192];
static int MasterCount;
/********
PROTOTYPES
********/
static void send_heartbeat(qr_t qrec, int statechanged);
static void qr_parse_query(qr_t qrec, char* query, int len, struct sockaddr* sender);
static int do_connect(SOCKET sock, char* addr, int port, struct sockaddr_in* hbaddr);
void qr_check_queries(qr_t qrec);
void qr_check_send_heartbeat(qr_t qrec);
static void init_qrec(qr_t* qrec,
int baseport,
SOCKET hbsock,
SOCKET querysock,
const char* gamename,
const char* secret_key,
qr_querycallback_t qr_basic_callback,
qr_querycallback_t qr_info_callback,
qr_querycallback_t qr_rules_callback,
qr_querycallback_t qr_players_callback,
void* userdata);
/****************************************************************************/
/* PUBLIC FUNCTIONS */
/****************************************************************************/
/* qr_init: Initializes the sockets, etc. Returns an error value
if an error occured, or 0 otherwise */
int qr_init(qr_t* qrec,
const char* ip,
int baseport,
const char* gamename,
const char* secret_key,
qr_querycallback_t qr_basic_callback,
qr_querycallback_t qr_info_callback,
qr_querycallback_t qr_rules_callback,
qr_querycallback_t qr_players_callback,
void* userdata)
{
int lasterror;
struct sockaddr_in saddr;
qrsocklen_t saddrlen;
int maxport;
SOCKET querysock;
SOCKET hbsock;
if (qrec != NULL) //init it to empty
*qrec = NULL;
//create our sockets
SocketStartUp();
querysock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
#ifdef TCP_HEARTBEATS
hbsock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
#else
hbsock = querysock; //share the socket
#endif
if (INVALID_SOCKET == querysock || INVALID_SOCKET == hbsock) {
return E_GOA_WSOCKERROR;
}
lasterror = 0;
maxport = baseport + NUM_PORTS_TO_TRY;
while (baseport < maxport) {
get_sockaddrin(ip, baseport, &saddr, NULL);
if (saddr.sin_addr.s_addr == htonl(0x7F000001)) //localhost -- we don't want that!
saddr.sin_addr.s_addr = INADDR_ANY;
lasterror = bind(querysock, (struct sockaddr*)&saddr, sizeof(saddr));
if (lasterror == 0)
break; //we found a port
baseport++;
}
if (lasterror != 0) //we weren't able to find a port
{
return E_GOA_BINDERROR;
}
if (baseport == 0) //we bound it dynamically
{
saddrlen = sizeof(saddr);
lasterror = getsockname(querysock, (struct sockaddr*)&saddr, &saddrlen);
if (lasterror)
return E_GOA_BINDERROR;
baseport = ntohs(saddr.sin_port);
}
init_qrec(qrec,
baseport,
hbsock,
querysock,
gamename,
secret_key,
qr_basic_callback,
qr_info_callback,
qr_rules_callback,
qr_players_callback,
userdata);
if (!qrec) {
qrec = &current_rec;
}
return do_connect(hbsock, MASTER_ADDR, MASTER_PORT, &(*qrec)->hbaddr);
}
void init_qrec(qr_t* qrec,
int qport,
SOCKET hbsock,
SOCKET querysock,
const char* gamename,
const char* secret_key,
qr_querycallback_t qr_basic_callback,
qr_querycallback_t qr_info_callback,
qr_querycallback_t qr_rules_callback,
qr_querycallback_t qr_players_callback,
void* userdata)
{
qr_t cr;
if (qrec == NULL) {
cr = &static_rec;
} else {
*qrec = (qr_t)malloc(sizeof(struct qr_implementation_s));
cr = *qrec;
}
strcpy(cr->gamename, gamename);
strcpy(cr->secret_key, secret_key);
cr->qport = qport;
cr->lastheartbeat = 0;
cr->hbsock = hbsock;
cr->querysock = querysock;
cr->packetnumber = 0;
cr->queryid = 1;
cr->no_query = 1;
cr->udata = userdata;
cr->qr_basic_callback = qr_basic_callback;
cr->qr_info_callback = qr_info_callback;
cr->qr_players_callback = qr_players_callback;
cr->qr_rules_callback = qr_rules_callback;
cr->cdkeyprocess = NULL;
}
int qr_init_socket(qr_t* qrec,
unsigned int s,
const char* gamename,
const char* secret_key,
qr_querycallback_t qr_basic_callback,
qr_querycallback_t qr_info_callback,
qr_querycallback_t qr_rules_callback,
qr_querycallback_t qr_players_callback,
void* userdata)
{
if (qrec) {
*qrec = NULL;
}
SocketStartUp();
init_qrec(qrec,
0,
s,
s,
gamename,
secret_key,
qr_basic_callback,
qr_info_callback,
qr_rules_callback,
qr_players_callback,
userdata);
return do_connect(s, MASTER_ADDR, MASTER_PORT, &(*qrec)->hbaddr);
}
/* qr_process_queries: Processes any waiting queries, and sends a
heartbeat if 5 minutes have elapsed */
void qr_process_queries(qr_t qrec)
{
if (qrec == NULL)
qrec = current_rec;
qr_check_send_heartbeat(qrec);
qr_check_queries(qrec);
}
/* qr_process_queries_no_heartbeat: Processes any waiting queries, but
never sends heartbeats */
void qr_process_queries_no_heartbeat(qr_t qrec)
{
if (qrec == NULL)
qrec = current_rec;
qr_check_queries(qrec);
}
/* qr_check_queries: Processes any waiting queries */
void qr_check_queries(qr_t qrec)
{
static char indata[INBUF_LEN]; //256 byte input buffer
struct sockaddr_in saddr;
qrsocklen_t saddrlen = sizeof(struct sockaddr_in);
fd_set set;
struct timeval timeout = {0, 0};
int error;
if (0 == qrec->qport)
return;
FD_ZERO(&set);
FD_SET(qrec->querysock, &set);
while (1) {
error = select(FD_SETSIZE, &set, NULL, NULL, &timeout);
if (gsiSocketIsError(error) || error == 0)
return;
//else we have data
error = recvfrom(qrec->querysock, indata, INBUF_LEN - 1, 0, (struct sockaddr*)&saddr, &saddrlen);
if (gsiSocketIsNotError(error)) {
indata[error] = '\0';
qr_parse_query(qrec, indata, error, (struct sockaddr*)&saddr);
}
}
}
/* check_send_heartbeat: Perform any scheduled outgoing
heartbeats, (every 5 minutes) */
void qr_check_send_heartbeat(qr_t qrec)
{
unsigned long tc = current_time();
if (INVALID_SOCKET == qrec->hbsock)
return; //no sockets to work with!
//check if we need to send a heartbet
if (tc - qrec->lastheartbeat > HB_TIME || qrec->lastheartbeat == 0 || tc < qrec->lastheartbeat)
send_heartbeat(qrec, 0);
else if (qrec->no_query > 0
&& tc - qrec->lastheartbeat > FIRST_HB_TIME) { //check to see if we haven't gotten a query yet
send_heartbeat(qrec, 0);
qrec->no_query++;
if (qrec->no_query > MAX_FIRST_COUNT)
qrec->no_query = 0; //stop trying to get first query
}
}
/* qr_send_statechanged: Sends a statechanged heartbeat, call when
your gamemode changes */
void qr_send_statechanged(qr_t qrec)
{
if (qrec == NULL)
qrec = current_rec;
send_heartbeat(qrec, 1);
}
void qr_send_exiting(qr_t qrec)
{
if (qrec == NULL)
qrec = current_rec;
send_heartbeat(qrec, 2);
}
/* qr_shutdown: Cleans up the sockets and shuts down */
void qr_shutdown(qr_t qrec)
{
if (qrec == NULL)
qrec = current_rec;
if (INVALID_SOCKET != qrec->querysock && qrec->qport != 0) {
closesocket(qrec->querysock);
}
if (INVALID_SOCKET != qrec->hbsock && qrec->hbsock != qrec->querysock) {
closesocket(qrec->hbsock);
}
qrec->hbsock = INVALID_SOCKET;
qrec->querysock = INVALID_SOCKET;
qrec->lastheartbeat = 0;
if (qrec != &static_rec) //need to gsifree it, it was dynamically allocated
{
gsifree(qrec);
}
SocketShutDown();
}
/****************************************************************************/
static int do_connect(SOCKET sock, char* addr, int port, struct sockaddr_in* hbaddr)
{
#ifdef TCP_HEARTBEATS
struct sockaddr_in saddr;
get_sockaddrin(addr, port, &saddr, NULL);
if (connect(sock, (struct sockaddr*)&saddr, sizeof(saddr)) == SOCKET_ERROR) {
return E_GOA_CONNERROR;
}
add_master(&saddr);
#else
get_sockaddrin(addr, port, hbaddr, NULL);
add_master(hbaddr);
#endif
return 0;
}
/* Return a sockaddrin for the given host (numeric or DNS) and port)
Returns the hostent in savehent if it is not NULL */
int get_sockaddrin(const char* host, int port, struct sockaddr_in* saddr, struct hostent** savehent)
{
struct hostent* hent;
char broadcast_t[] = {
'2', '5', '5', '.', '2', '5', '5', '.', '2', '5', '5', '.', '2', '5', '5', '\0'}; //255.255.255.255
hent = 0;
memset(saddr, 0, sizeof(struct sockaddr_in));
saddr->sin_family = AF_INET;
saddr->sin_port = htons((unsigned short)port);
if (host == NULL)
saddr->sin_addr.s_addr = INADDR_ANY;
else
saddr->sin_addr.s_addr = inet_addr(host);
if (saddr->sin_addr.s_addr == INADDR_NONE && strcmp(host, broadcast_t) != 0) {
hent = gethostbyname(host);
if (!hent)
return 0;
saddr->sin_addr.s_addr = *(u_long*)hent->h_addr_list[0];
}
if (savehent != NULL)
*savehent = hent;
return 1;
}
/* value_for_key: this returns a value for a certain key in s, where s is a string
containing key\value pairs. If the key does not exist, it returns NULL.
Note: the value is stored in a common buffer. If you want to keep it, make a copy! */
static char* value_for_key(const char* s, const char* key)
{
static int valueindex;
char *pos, *pos2;
char keyspec[256] = "\\";
static char value[2][256];
valueindex ^= 1;
strcat(keyspec, key);
strcat(keyspec, "\\");
pos = strstr(s, keyspec);
if (!pos)
return NULL;
pos += strlen(keyspec);
pos2 = value[valueindex];
while (*pos && *pos != '\\')
*pos2++ = *pos++;
*pos2 = '\0';
return value[valueindex];
}
/*****************************************************************************/
/* Various encryption / encoding routines */
#ifndef _GUTIL
#define _GUTIL
static void swap_byte(uchar* a, uchar* b)
{
uchar swapByte;
swapByte = *a;
*a = *b;
*b = swapByte;
}
static uchar encode_ct(uchar c)
{
if (c < 26)
return ('A' + c);
if (c < 52)
return ('a' + c - 26);
if (c < 62)
return ('0' + c - 52);
if (c == 62)
return ('+');
if (c == 63)
return ('/');
return 0;
}
void gs_encode(uchar* ins, int size, uchar* result)
{
int i, pos;
uchar trip[3];
uchar kwart[4];
i = 0;
while (i < size) {
for (pos = 0; pos <= 2; pos++, i++)
if (i < size)
trip[pos] = *ins++;
else
trip[pos] = '\0';
kwart[0] = (trip[0]) >> 2;
kwart[1] = (((trip[0]) & 3) << 4) + ((trip[1]) >> 4);
kwart[2] = (((trip[1]) & 15) << 2) + ((trip[2]) >> 6);
kwart[3] = (trip[2]) & 63;
for (pos = 0; pos <= 3; pos++)
*result++ = encode_ct(kwart[pos]);
}
*result = '\0';
}
void gs_encrypt(uchar* key, int key_len, uchar* buffer_ptr, int buffer_len)
{
short counter;
uchar x, y, xorIndex;
uchar state[256];
for (counter = 0; counter < 256; counter++)
state[counter] = (uchar)counter;
x = 0;
y = 0;
for (counter = 0; counter < 256; counter++) {
y = (key[x] + state[counter] + y) % 256;
x = (x + 1) % key_len;
swap_byte(&state[counter], &state[y]);
}
x = 0;
y = 0;
for (counter = 0; counter < buffer_len; counter++) {
x = (x + buffer_ptr[counter] + 1) % 256;
y = (state[x] + y) % 256;
swap_byte(&state[x], &state[y]);
xorIndex = (state[x] + state[y]) % 256;
buffer_ptr[counter] ^= state[xorIndex];
}
}
/*****************************************************************************/
#endif
/* packet_send: sends a key\value packet. Appends the queryid
key\value pair. Clears the buffer */
static void packet_send(qr_t qrec, struct sockaddr* addr, char* buffer)
{
char keyvalue[80];
if (strlen(buffer) == 0)
return; //dont need to send an empty one!
qrec->packetnumber++; //packet numbers start at 1
snprintf(keyvalue, sizeof(keyvalue), "\\queryid\\%d.%d", qrec->queryid, qrec->packetnumber);
strcat(buffer, keyvalue);
sendto(qrec->querysock, buffer, (int)strlen(buffer), 0, addr, sizeof(struct sockaddr_in));
buffer[0] = '\0';
}
/* buffer_send: appends buffer with newdata. If the combined
size would be too large, it flushes buffer first. Space is reserved
on the total size to allow for the queryid key\value */
static void buffer_send(qr_t qrec, struct sockaddr* sender, char* buffer, char* newdata)
{
char *pos, *lastkey;
int bcount = 0;
if (strlen(buffer) + strlen(newdata) < MAX_DATA_SIZE - 50) {
strcat(buffer, newdata);
} else {
if (strlen(newdata) > MAX_DATA_SIZE - 50) //incoming data is too big already!
{
lastkey = pos = newdata;
while (pos - newdata < MAX_DATA_SIZE - 50) {
if ('\\' == *pos) {
if (bcount % 2 == 0)
lastkey = pos;
bcount++;
}
pos++;
}
if (lastkey == newdata)
return; //endless loop - single key was too big!
*lastkey = '\0';
buffer_send(qrec, sender, buffer, newdata);
*lastkey = '\\';
buffer_send(qrec, sender, buffer, lastkey); //send the rest!
} else {
packet_send(qrec, sender, buffer);
strcpy(buffer, newdata);
}
}
}
/* send_basic: sends a response to the basic query */
static void send_basic(qr_t qrec, struct sockaddr* sender, char* outbuf)
{
char keyvalue[BUF_SIZE] = "";
assert(qrec->qr_basic_callback);
qrec->qr_basic_callback(keyvalue, sizeof(keyvalue), qrec->udata);
buffer_send(qrec, sender, outbuf, keyvalue);
}
/* send_info: sends a response to the info query */
static void send_info(qr_t qrec, struct sockaddr* sender, char* outbuf)
{
char keyvalue[BUF_SIZE] = "";
assert(qrec->qr_info_callback);
qrec->qr_info_callback(keyvalue, sizeof(keyvalue), qrec->udata);
buffer_send(qrec, sender, outbuf, keyvalue);
}
/* send_rules: sends a response to the rules query. */
static void send_rules(qr_t qrec, struct sockaddr* sender, char* outbuf)
{
char keyvalue[BUF_SIZE] = "";
assert(qrec->qr_rules_callback);
qrec->qr_rules_callback(keyvalue, sizeof(keyvalue), qrec->udata);
buffer_send(qrec, sender, outbuf, keyvalue);
}
/* send_players: sends the players and their information.*/
static void send_players(qr_t qrec, struct sockaddr* sender, char* outbuf)
{
assert(qrec->qr_players_callback);
qrec->qr_players_callback(keyvalue, sizeof(keyvalue), qrec->udata);
buffer_send(qrec, sender, outbuf, keyvalue);
}
/* send_echo: bounces the echostr back to sender
Note: you should always make sure that your echostr doesn't exceed the MAX_DATA_SIZE*/
static void send_echo(qr_t qrec, struct sockaddr* sender, char* outbuf, char* echostr)
{
char keyvalue[MAX_DATA_SIZE];
if (strlen(echostr) > MAX_DATA_SIZE - 50)
return;
snprintf(keyvalue, sizeof(keyvalue), "\\echo\\%s", echostr);
buffer_send(qrec, sender, outbuf, keyvalue);
}
/* send_final: sends the remaining data in outbuf. Appends the final
key\value to the end. Also adds validation if required. */
static void send_final(qr_t qrec, struct sockaddr* sender, char* outbuf, char* validation)
{
char keyvalue[256];
char encrypted_val[128]; //don't need to null terminate
char encoded_val[200];
int keylen;
if (validation[0]) {
keylen = (int)strlen(validation);
if (keylen > 128)
return;
strcpy(encrypted_val, validation);
gs_encrypt((uchar*)qrec->secret_key, (int)strlen(qrec->secret_key), (uchar*)encrypted_val, keylen);
gs_encode((uchar*)encrypted_val, keylen, (uchar*)encoded_val);
snprintf(keyvalue, sizeof(keyvalue), "\\validate\\%s", encoded_val);
buffer_send(qrec, sender, outbuf, keyvalue);
}
snprintf(keyvalue, sizeof(keyvalue), "\\final\\");
buffer_send(qrec, sender, outbuf, keyvalue);
packet_send(qrec, sender, outbuf);
}
/* parse_query: parse an incoming query (which may contain 1 or more
individual queries) and reply to each query */
static void qr_parse_query(qr_t qrec, char* query, int len, struct sockaddr* sender)
{
int querytype;
char buffer[MAX_DATA_SIZE] = "";
char* value;
char validation[256] = "";
if (qrec == NULL)
qrec = current_rec;
if (query[0] == 0x3B) /* a cdkey query */
{
if (qrec->cdkeyprocess != NULL) {
qrec->cdkeyprocess(query, len, sender);
}
return;
}
qrec->queryid++;
qrec->packetnumber = 0;
if (qrec->no_query > 0)
qrec->no_query = 0;
for (querytype = qtbasic; querytype <= qtsecure; querytype++) {
if ((value = value_for_key(query, queries[querytype])))
switch (querytype) {
case qtbasic:
send_basic(qrec, sender, buffer);
break;
case qtinfo:
send_info(qrec, sender, buffer);
break;
case qtrules:
send_rules(qrec, sender, buffer);
break;
case qtplayers:
send_players(qrec, sender, buffer);
break;
case qtstatus:
send_basic(qrec, sender, buffer);
send_info(qrec, sender, buffer);
send_rules(qrec, sender, buffer);
send_players(qrec, sender, buffer);
break;
case qtpackets:
/*note: "packets" is NOT a real query type. It is simply here to illustrate how a large query would look if broken into packets */
send_basic(qrec, sender, buffer);
packet_send(qrec, sender, buffer);
send_info(qrec, sender, buffer);
packet_send(qrec, sender, buffer);
send_rules(qrec, sender, buffer);
packet_send(qrec, sender, buffer);
send_players(qrec, sender, buffer);
break;
case qtecho:
//note: \echo\value is the syntax here
send_echo(qrec, sender, buffer, value);
break;
case qtsecure:
strcpy(validation, value);
break;
case qtunknown:
break;
}
}
send_final(qrec, sender, buffer, validation);
}
int get_master_count()
{
return MasterCount;
}
void clear_master_list()
{
memset(MasterList, 0, sizeof(MasterList));
MasterCount = 0;
}
void add_master(struct sockaddr_in* addr)
{
int i;
for (i = 0; i < MasterCount; i++) {
if (memcmp(addr, &MasterList[i], sizeof(MasterList[i])) == 0) {
return;
}
}
if (i == 8) {
return;
} else {
MasterList[i] = *addr;
MasterCount++;
}
}
/* send_heartbeat: Sends a heartbeat to the gamemaster,
adds \statechanged\ if statechanged != 0 */
static void send_heartbeat(qr_t qrec, int statechanged)
{
char buf[256];
int ret;
int i;
snprintf(buf, sizeof(buf), "\\heartbeat\\%d\\gamename\\%s", qrec->qport, qrec->gamename);
if (statechanged)
snprintf(&buf[strlen(buf)], sizeof(buf) - strlen(buf), "\\statechanged\\");
for (i = 0; i < MasterCount; i++) {
ret = sendto(qrec->hbsock, buf, (int)strlen(buf), 0, (struct sockaddr*)&MasterList[i], sizeof(MasterList[i]));
}
qrec->lastheartbeat = current_time();
}
#ifdef __cplusplus
}
#endif
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