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EX_browser_sources.c
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/*
Copyright (C) 2011 azazello and ezQuake team
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, see <http://www.gnu.org/licenses/>.
*/
#include "quakedef.h"
#include "fs.h"
#ifndef _WIN32
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/uio.h>
#include <arpa/inet.h>
#include <errno.h>
#include <unistd.h>
#endif
#include <curl/curl.h>
#include "EX_browser.h"
#define SOURCES_LIST_FILENAME "sb/sources.txt"
// sources table
source_data *sources[MAX_SOURCES];
int sourcesn;
source_data * Create_Source(void)
{
source_data *s;
s = (source_data *) Q_malloc(sizeof(source_data));
s->serversn = 0;
s->servers_allocated = 0;
s->last_update.wYear = 0;
s->name[0] = 0;
s->checked = 0;
s->servers = NULL;
s->unique = source_unique++;
return s;
}
void Reset_Source(source_data *s)
{
int i;
if (s->servers != NULL)
{
for (i=0; i < s->serversn; i++)
Q_free(s->servers[i]);
Q_free(s->servers);
}
s->serversn = 0;
s->servers_allocated = 0;
s->last_update.wYear = 0;
//s->name[0] = 0;
}
// used only for list re-loading
void Delete_Source(source_data *s)
{
Reset_Source(s);
Q_free(s);
}
// returns true, if there were some problems (like domain-name addresses)
// which require the source to be dumped to file in corrected form
qbool Update_Source_From_File(source_data *s, char *fname, server_data **servers, int *pserversn)
{
vfsfile_t *f;
char line[2048];
qbool should_dump = false;
//length = COM_FileOpenRead (fname, &f);
f = FS_OpenVFS(fname, "rb", FS_ANY);
if (f) {
while (VFS_GETS(f, line, sizeof(line)))
{
netadr_t addr;
if (!strchr(line, ':'))
strlcat (line, ":27000", sizeof (line));
if (!NET_StringToAdr(line, &addr))
continue;
servers[(*pserversn)++] = Create_Server2(addr);
if (line[0] <= '0' || line[0] >= '9')
should_dump = true;
}
VFS_CLOSE(f);
} else {
//Com_Printf ("Updating %15.15s failed: file not found\n", s->name);
// ?????? should_dump = true;
}
return should_dump;
}
static size_t SB_URL_to_FileName(const char *str, char *dest, size_t size)
{
size_t written = 0;
char *hexa = "0123456789abcdef";
while (*str != '\0' && written + 1 < size) {
if (isalnum(*str) || *str == '.') {
*dest++ = *str++;
written++;
}
else {
if (written + 1 < size) {
int curchar = *str++;
written += 3;
*dest++ = '_';
*dest++ = hexa[curchar / 16];
*dest++ = hexa[curchar % 16];
}
else {
break;
}
}
}
*dest = '\0';
return written;
}
static size_t SB_URL_To_Filename_Length(const char *s)
{
return strlen(s)*3+1;
}
static void Precache_Source(source_data *s)
{
int i;
char name[1024];
server_data *servers[MAX_SERVERS];
int serversn = 0;
if (s->type == type_url) {
char *filename;
size_t filename_size = SB_URL_To_Filename_Length(s->address.url);
filename = Q_malloc(filename_size);
SB_URL_to_FileName(s->address.url, filename, filename_size);
snprintf(name, sizeof (name), "sb/cache/%s", filename);
Q_free(filename);
}
else if (s->type == type_master) {
snprintf(name, sizeof (name), "sb/cache/%d_%d_%d_%d_[%d].txt",
s->address.address.ip[0], s->address.address.ip[1],
s->address.address.ip[2], s->address.address.ip[3],
ntohs(s->address.address.port));
}
else {
return;
}
Update_Source_From_File(s, name, servers, &serversn);
if (serversn > 0)
{
SYSTEMTIME tm;
char tmp_path[MAX_OSPATH] = {0};
snprintf(&tmp_path[0], sizeof(tmp_path), "%s/ezquake/%s", com_basedir, name);
if (GetFileLocalTime(tmp_path, &tm))
{
Reset_Source(s);
s->servers = (server_data **) Q_malloc(serversn * sizeof(server_data *));
for (i=0; i < serversn; i++)
s->servers[i] = servers[i];
s->serversn = serversn;
s->servers_allocated = serversn;
if (s->checked)
rebuild_servers_list = 1;
memcpy(&s->last_update, &tm, sizeof(SYSTEMTIME));
}
}
}
static void SB_Process_URL_Buffer(FILE *f, server_data *servers[],
int *serversn)
{
netadr_t addr;
char buf[32];
while (fgets(buf, sizeof (buf), f) != NULL) {
NET_StringToAdr(buf, &addr);
servers[(*serversn)++] = Create_Server2(addr);
}
}
static void SB_Update_Source_From_URL(const source_data *s, server_data *servers[],
int *serversn)
{
CURL *curl;
CURLcode res;
size_t filename_buf_len;
char *filename;
FILE *f;
if (s->type != type_url) {
Com_Printf_State(PRINT_FAIL, "SB_Update_Source_From_URL() Invalid argument\n");
return;
}
curl = curl_easy_init();
if (curl) {
curl_easy_setopt(curl, CURLOPT_URL, s->address.url);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
}
else {
Com_Printf_State(PRINT_FAIL, "SB_Update_Source_From_URL() Can't init cURL\n");
return;
}
filename_buf_len = SB_URL_To_Filename_Length(s->address.url);
filename = Q_malloc(filename_buf_len);
SB_URL_to_FileName(s->address.url, filename, filename_buf_len);
if (!FS_FCreateFile(filename, &f, "ezquake/sb/cache", "wt+")) {
Com_Printf_State(PRINT_FAIL, "SB_Update_Source_From_URL() Can't open cached file");
return;
}
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, f);
res = curl_easy_perform(curl);
if (res != CURLE_OK) {
Com_Printf("Error: Could not read URL %s\n", s->address.url);
}
fseek(f, 0, SEEK_SET);
SB_Process_URL_Buffer(f, servers, serversn);
fclose(f);
Q_free(filename);
/* always cleanup */
curl_easy_cleanup(curl);
}
void Update_Source(source_data *s)
{
int i;
qbool should_dump = false;
server_data *servers[MAX_SERVERS];
int serversn = 0;
if (s->type == type_dummy)
return;
if (s->type == type_file)
{
// read servers from file
char name[1024];
snprintf(name, sizeof (name), "sb/%s", s->address.filename);
should_dump = Update_Source_From_File(s, name, servers, &serversn);
GetLocalTime(&(s->last_update));
}
if (s->type == type_url)
{
SB_Update_Source_From_URL(s, servers, &serversn);
}
if (s->type == type_master)
{
// get servers from master server
char request[] = {'c', '\n', '\0'};
socket_t newsocket;
struct sockaddr_storage server;
int ret = 0, i;
unsigned char answer[10000];
fd_set fd;
struct timeval tv;
int trynum;
int timeout;
newsocket = UDP_OpenSocket(PORT_ANY);
// so we have a socket
// send status request
for (trynum=0; trynum < sb_masterretries.value; trynum++) {
NetadrToSockadr (&(s->address.address), &server);
ret = sendto (newsocket, request, sizeof(request), 0,
(struct sockaddr *)&server, sizeof(server) );
}
if (ret < 0)
return;
timeout = Sys_DoubleTime() + (sb_mastertimeout.value / 1000.0);
while (Sys_DoubleTime() < timeout) {
//fd.fd_count = 1;
//fd.fd_array[0] = newsocket;
FD_ZERO(&fd);
FD_SET(newsocket, &fd);
tv.tv_sec = 0;
tv.tv_usec = 1000 * 1.5 * sb_mastertimeout.value; // multiply timeout by 1.5
ret = select(newsocket+1, &fd, NULL, NULL, &tv);
// get answer
if (ret > 0)
ret = recvfrom (newsocket, (char *) answer, 10000, 0, NULL, NULL);
if (ret > 0 && ret < 10000)
{
answer[ret] = 0;
if (memcmp(answer, "\xff\xff\xff\xff\x64\x0a", 6))
{
closesocket(newsocket);
return;
}
// create servers avoiding duplicates
for (i=6; i+5 < ret; i+=6)
{
char buf[32];
server_data* server;
qbool exists = false;
int j;
snprintf(buf, sizeof (buf), "%u.%u.%u.%u:%u",
(int)answer[i+0], (int)answer[i+1],
(int)answer[i+2], (int)answer[i+3],
256 * (int)answer[i+4] + (int)answer[i+5]);
server = Create_Server(buf);
for (j=0; j<serversn; j++) {
if (NET_CompareAdr(servers[j]->address, server->address)) {
exists = true;
break;
}
}
if (!exists)
servers[serversn++] = server;
else
Delete_Server(server);
}
}
}
closesocket(newsocket);
}
SB_ServerList_Lock();
// copy all servers to source list
if (serversn > 0)
{
Reset_Source(s);
s->servers = Q_malloc((serversn + (s->type==type_file ? MAX_UNBOUND : 0)) * sizeof(server_data *));
for (i=0; i < serversn; i++)
s->servers[i] = servers[i];
s->serversn = serversn;
s->servers_allocated = serversn + (s->type == type_file ? MAX_UNBOUND : 0);
if (s->checked)
rebuild_servers_list = 1;
if (sb_mastercache.value)
{
DumpSource(s);
should_dump = false;
}
GetLocalTime(&(s->last_update));
}
else {
if (s->type == type_file)
{
Reset_Source(s);
s->servers = Q_malloc(MAX_UNBOUND * sizeof(server_data *));
}
}
SB_ServerList_Unlock();
if (should_dump)
DumpSource(s);
//Com_Printf ("Updating %15.15s: %d servers\n", s->name, serversn);
}
int updating_sources = 0;
int source_full_update = 0;
typedef struct infohost_s
{
double lastsenttime;
int phase;
} infohost;
source_data **psources;
int psourcesn;
int Update_Multiple_Sources_Proc(void * lpParameter)
{
// get servers from master server
SYSTEMTIME lt;
char request[] = {'c', '\n', '\0'};
socket_t newsocket;
struct sockaddr_storage server;
int ret = 0, i, sourcenum;
unsigned char answer[10000];
fd_set fd;
struct timeval tv;
int total_masters = 0;
int updated = 0;
int d1, d2;
GetLocalTime(<);
d1 = lt.wSecond + 60*(lt.wMinute + 60*(lt.wHour + 24*(lt.wDay)));
// update file sources - this should be a flash
for (sourcenum = 0; sourcenum < psourcesn; sourcenum++)
if (psources[sourcenum]->checked)
{
if (psources[sourcenum]->type == type_file)
Update_Source(psources[sourcenum]);
if (psources[sourcenum]->type == type_url)
Update_Source(psources[sourcenum]); // todo cache this too
else if (psources[sourcenum]->type == type_master)
{
source_data *s = psources[sourcenum];
if (s->last_update.wYear != 0 && !source_full_update)
{
d2 = s->last_update.wSecond + 60*(s->last_update.wMinute + 60*(s->last_update.wHour + 24*(s->last_update.wDay)));
if (d1 > d2 && d1 < d2 + sb_sourcevalidity.value*60)
continue;
}
total_masters++;
}
}
// update master sources
newsocket = UDP_OpenSocket(PORT_ANY);
for (sourcenum = 0; sourcenum < psourcesn && !abort_ping; sourcenum++)
{
server_data *servers[MAX_SERVERS];
int serversn = 0;
int trynum = 0;
source_data *s = psources[sourcenum];
double timeout;
if (psources[sourcenum]->type != type_master || !psources[sourcenum]->checked)
continue;
if (s->last_update.wYear != 0 && !source_full_update)
{
d2 = s->last_update.wSecond + 60*(s->last_update.wMinute + 60*(s->last_update.wHour + 24*(s->last_update.wDay)));
if (d1 > d2 && d1 < d2 + sb_sourcevalidity.value*60)
continue;
}
// send trynum queries to master server
for (trynum=0; trynum < sb_masterretries.value; trynum++)
{
NetadrToSockadr (&(s->address.address), &server);
ret = sendto (newsocket, request, sizeof(request), 0,
(struct sockaddr *)&server, sizeof(server) );
}
if (ret <= 0)
continue;
timeout = Sys_DoubleTime() + (sb_mastertimeout.value / 1000.0);
while (Sys_DoubleTime() < timeout) {
struct sockaddr_storage hostaddr;
netadr_t from;
//fd.fd_count = 1;
//fd.fd_array[0] = newsocket;
FD_ZERO(&fd);
FD_SET(newsocket, &fd);
tv.tv_sec = 0;
tv.tv_usec = 1000 * sb_mastertimeout.value;
ret = select(newsocket+1, &fd, NULL, NULL, &tv);
// get answer
i = sizeof(hostaddr);
if (ret > 0)
ret = recvfrom (newsocket, (char *) answer, 10000, 0,
(struct sockaddr *)&hostaddr, (socklen_t *)&i);
if (ret > 0 && ret < 10000)
{
SockadrToNetadr (&hostaddr, &from);
if (from.ip[0] == s->address.address.ip[0] &&
from.ip[1] == s->address.address.ip[1] &&
from.ip[2] == s->address.address.ip[2] &&
from.ip[3] == s->address.address.ip[3] &&
from.port == s->address.address.port)
{
answer[ret] = 0;
if (memcmp(answer, "\xff\xff\xff\xff\x64\x0a", 6))
{
continue;
}
// create servers avoiding duplicates
for (i=6; i+5 < ret; i+=6)
{
char buf[32];
server_data* server;
qbool exists = false;
int j;
snprintf(buf, sizeof (buf), "%u.%u.%u.%u:%u",
(int)answer[i+0], (int)answer[i+1],
(int)answer[i+2], (int)answer[i+3],
256 * (int)answer[i+4] + (int)answer[i+5]);
server = Create_Server(buf);
for (j=0; j<serversn; j++) {
if (NET_CompareAdr(servers[j]->address, server->address)) {
exists = true;
break;
}
}
if (!exists)
servers[serversn++] = server;
else
Delete_Server(server);
}
}
}
}
// copy all servers to source list
if (serversn > 0)
{
updated++;
SB_ServerList_Lock();
Reset_Source(s);
s->servers = (server_data **) Q_malloc(serversn * sizeof(server_data *));
for (i=0; i < serversn; i++)
s->servers[i] = servers[i];
s->serversn = serversn;
s->servers_allocated = serversn;
if (s->checked)
rebuild_servers_list = 1;
GetLocalTime(&(s->last_update));
SB_ServerList_Unlock();
if (sb_mastercache.value)
DumpSource(s);
}
ping_pos = updated / (double)total_masters;
}
closesocket(newsocket);
// Not having this here leads to crash almost always when some
// other action with servers list happens right after this function.
// Even 1 ms delay was enough during the tests, previously 500 ms was used.
//Sys_MSleep(100);
updating_sources = 0;
sb_queuedtriggers |= SB_TRIGGER_SOURCESUPDATED;
return 0;
}
void Update_Init(source_data *s[], int sn)
{
psources = s;
psourcesn = sn;
abort_ping = 0;
updating_sources = 1;
ping_pos = 0;
}
// starts asynchronous sources update
void Update_Multiple_Sources_Begin(source_data *s[], int sn)
{
Update_Init(s, sn);
if (Sys_CreateDetachedThread(Update_Multiple_Sources_Proc, NULL) < 0) {
Com_Printf("Failed to create Update_Multiple_Sources_Proc thread\n");
}
}
// starts synchronous sources update
void Update_Multiple_Sources(source_data *s[], int sn)
{
Update_Init(s, sn);
Update_Multiple_Sources_Proc(NULL);
}
void SB_Sources_Update(qbool full)
{
source_full_update = full;
Update_Multiple_Sources(sources, sourcesn);
if (rebuild_servers_list)
Rebuild_Servers_List();
}
void SB_Sources_Update_Begin(qbool full)
{
source_full_update = full;
Update_Multiple_Sources_Begin(sources, sourcesn);
}
unsigned int SB_Sources_Marked_Count(void)
{
int i;
unsigned int ret = 0;
for (i = 0; i < sourcesn; i++) {
if (sources[i]->checked == 1) {
ret++;
}
}
return ret;
}
void Toggle_Source(source_data *s)
{
s->checked = !(s->checked);
rebuild_servers_list = 1;
}
void Mark_Source(source_data *s)
{
if (!s->checked)
{
s->checked = 1;
rebuild_servers_list = 1;
}
}
void Unmark_Source(source_data *s)
{
if (s->checked)
{
s->checked = 0;
rebuild_servers_list = 1;
}
}
char * next_space(char *s)
{
char *ret = s;
while (*ret && !isspace2(*ret))
ret++;
return ret;
}
char * next_nonspace(char *s)
{
char *ret = s;
while (*ret && isspace2(*ret))
ret++;
return ret;
}
char * next_quote(char *s)
{
char *ret = s;
while (*ret && *ret != '\"')
ret++;
return ret;
}
qbool SB_Sources_Dump(void)
{
FILE *f;
int i;
if (!FS_FCreateFile(SOURCES_LIST_FILENAME, &f, "ezquake", "wt")) {
return false;
}
for (i = 0; i < sourcesn; i++) {
sb_source_type_t type = sources[i]->type;
if (type == type_master || type == type_file || type == type_url) {
const char *typestr;
const char *name = sources[i]->name;
const char *loc;
if (type == type_master) {
typestr = "master";
loc = NET_AdrToString(sources[i]->address.address);
}
if (type == type_url) {
typestr = "url";
loc = sources[i]->address.url;
}
else {
typestr = "file";
loc = sources[i]->address.filename;
}
fprintf(f, "%s \"%s\" %s\n", typestr, name, loc);
}
}
fclose(f);
return true;
}
int SB_Source_Add(const char* name, const char* address, sb_source_type_t type)
{
source_data *s;
char addr[512];
int pos;
if (strlen(name) <= 0 || strlen(address) <= 0)
return -1;
// create new source
s = Create_Source();
s->type = type;
strlcpy (s->name, name, sizeof (s->name));
strlcpy (addr, address, sizeof (addr));
if (s->type == type_file) {
strlcpy (s->address.filename, address, sizeof (s->address.filename));
}
else if (s->type == type_url) {
strlcpy(s->address.url, address, sizeof(s->address.url));
}
else {
if (!strchr(addr, ':')) {
strlcat (addr, ":27000", sizeof (addr));
}
if (!NET_StringToAdr(addr, &(s->address.address))) {
return -1;
}
}
pos = sourcesn++;
sources[pos] = s;
Mark_Source(sources[pos]);
Update_Source(sources[pos]);
SB_Sources_Dump();
return pos;
}
void SB_Source_Remove(int i)
{
source_data *s;
if (i < 0 || i >= MAX_SOURCES) {
return;
}
s = sources[i];
if (s->type == type_dummy)
return;
Q_free(sources[i]);
// remove from SB
if (i < sourcesn - 1)
{
memmove(sources+i,
sources+i + 1,
(sourcesn-i-1)*sizeof(*sources));
}
sourcesn--;
SB_Sources_Dump();
}
void Reload_Sources(void)
{
int i;
vfsfile_t *f;
char ln[2048];
source_data *s;
SB_ServerList_Lock();
for (i=0; i < sourcesn; i++)
Delete_Source(sources[i]);
sourcesn = 0;
// create dummy unbound source
sources[0] = Create_Source();
sources[0]->type = type_dummy;
strlcpy (sources[0]->name, "Unbound", sizeof (sources[0]->name));
sources[0]->servers = (server_data **) Q_malloc(MAX_UNBOUND*sizeof(server_data *));
sources[0]->serversn = 0;
sources[0]->servers_allocated = MAX_UNBOUND;
sourcesn = 1;
f = FS_OpenVFS(SOURCES_LIST_FILENAME, "rb", FS_ANY);
if (!f)
{
//Com_Printf ("sources file not found: %s\n", SOURCES_PATH);
SB_ServerList_Unlock();
return;
}
s = Create_Source();
while (VFS_GETS(f, ln, sizeof(ln)))
{
char line[2048];
char *p, *q;
if (sscanf(ln, "%[ -~ ]s", line) != 1) {
continue;
}
p = next_nonspace(line);
if (*p == '/')
continue; // comment
q = next_space(p);
if (!strncmp(p, "master", q-p)) {
s->type = type_master;
}
else if (!strncmp(p, "file", q-p)) {
s->type = type_file;
}
else if (!strncmp(p, "url", q-p)) {
s->type = type_url;
}
else {
continue;
}
p = next_nonspace(q);
q = (*p == '\"') ? next_quote(++p) : next_space(p);
if (q-p <= 0)
continue;
strlcpy (s->name, p, min(q-p+1, MAX_SOURCE_NAME+1));
p = next_nonspace(q+1);
q = next_space(p);
*q = 0;
if (q-p <= 0)
continue;
if (s->type == type_file)
strlcpy (s->address.filename, p, sizeof (s->address.filename));
else if (s->type == type_url)
strlcpy (s->address.url, p, sizeof (s->address.url));
else
if (!NET_StringToAdr(p, &(s->address.address)))
continue;
sources[sourcesn] = Create_Source();
i = sources[sourcesn]->unique;
memcpy(sources[sourcesn], s, sizeof(source_data));
sources[sourcesn]->unique = i;
sourcesn++;
}
Delete_Source(s);
VFS_CLOSE(f);
//Com_Printf("Read %d sources for Server Browser\n", sourcesn);
// update all file sources
for (i=0; i < sourcesn; i++)
if (sources[i]->type == type_file)
Update_Source(sources[i]);
else if (sources[i]->type == type_master || sources[i]->type == type_url)
Precache_Source(sources[i]);
rebuild_servers_list = 1;
resort_sources = 1;
SB_ServerList_Unlock();
}
int rebuild_servers_list = 0;
void Rebuild_Servers_List(void)
{
int i;
int suppressed_servers = 0;
int server_limit = sizeof(servers) / sizeof(servers[0]);
serversn = 0;
rebuild_servers_list = 0;
SB_ServerList_Lock();
for (i=0; i < sourcesn; i++)
{
if (sources[i]->checked)
{
int j;
for (j=0; j < sources[i]->serversn; j++)
{
int k;
qbool found_duplicate = false;
if (sources[i]->servers[j] == NULL)
continue;
// Try and find a matching address
for (k = 0; k < serversn && k < server_limit; k++) {
if (!memcmp(&(servers[k]->address), &(sources[i]->servers[j]->address), sizeof(netadr_t))) {
found_duplicate = true;
break;
}
}
if (! found_duplicate) {
// if not on list yet
if (serversn < server_limit) {
servers[serversn++] = sources[i]->servers[j];
}
else {
++suppressed_servers;
}
}
}
}
}
resort_servers = 1;
rebuild_all_players = 1;
Servers_pos = 0;
serversn_passed = serversn;
SB_ServerList_Unlock();
}
void DumpSource(source_data *s)
{
FILE *f;
int i;
char buf[1024];
if (s->type == type_file)
snprintf(buf, sizeof (buf), "sb/%s", s->address.filename);
else if (s->type == type_master)
{
Sys_mkdir("sb/cache");
snprintf(buf, sizeof (buf), "sb/cache/%d_%d_%d_%d_[%d].txt",
s->address.address.ip[0], s->address.address.ip[1],
s->address.address.ip[2], s->address.address.ip[3],
ntohs(s->address.address.port));
}
else
return;
// f = fopen(buf, "wt");
// if (f == NULL)
// return;
if (!FS_FCreateFile(buf, &f, "ezquake", "wt"))
return;
for (i=0; i < s->serversn; i++)
fprintf(f, "%d.%d.%d.%d:%d\n",
s->servers[i]->address.ip[0], s->servers[i]->address.ip[1],
s->servers[i]->address.ip[2], s->servers[i]->address.ip[3],
ntohs(s->servers[i]->address.port));
fclose(f);
}
static void AddUnbound(server_data *s)
{
if (sources[0]->serversn >= MAX_UNBOUND)
return;
if (IsInSource(sources[0], s))