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at rxr's request, allow the master server to read in a static list of

Browse source 
servers (qw-master -f servers.txt). These servers can not be removed from
the master server without editing the file and restarting the server. The
format of the server list file is a simple line-by-line list of the servers'
addresses and their port (optional: defaults to 27500):

servername([ :]port)?

one per line.
This commit is contained in:
Bill Currie 2002-02-11 20:50:54 +00:00
parent b5c2c0e14e
commit 6c6b8ca4c3
1 changed files with 73 additions and 15 deletions
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84
qw/source/master.c
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@ -49,6 +49,9 @@ static const char rcsid[] =
#ifdef HAVE_WINSOCK_H
# include <winsock.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#include <sys/types.h>
#include <time.h>
@ -76,7 +79,7 @@ typedef struct {
int
QW_AddHeartbeat (server_t **servers_p, int slen,
struct sockaddr_in *addr, char *buf)
struct sockaddr_in *addr, char *buf, qboolean notimeout)
{
server_t *servers = *servers_p;
int freeslot = -1;
@ -114,14 +117,15 @@ QW_AddHeartbeat (server_t **servers_p, int slen,
}
for (i = slen; i < slen + SLIST_MULTIPLE; i++)
newservers[i].updated = 0;
memset (&newservers[i], 0, sizeof (newservers[i]));
freeslot = slen;
slen += SLIST_MULTIPLE;
*servers_p = newservers;
servers = *servers_p;
}
servers[freeslot].addr = *addr;
servers[freeslot].notimeout = false;
servers[freeslot].notimeout = notimeout;
#if 1
printf ("Added %s:%d (seq %d, players %d)\n",
inet_ntoa (servers[freeslot].addr.sin_addr),
@ -221,27 +225,22 @@ QW_Pong (int sock, struct sockaddr_in *addr)
(struct sockaddr *) addr, sizeof (struct sockaddr_in));
}
int serverlen = SLIST_MULTIPLE;
server_t *servers;
void
QW_Master (struct sockaddr_in *addr)
{
int sock;
server_t *servers;
int serverlen = SLIST_MULTIPLE;
int i;
#ifdef _WIN32
WSADATA winsockdata;
#endif
servers = malloc (sizeof (server_t) * serverlen);
if (!servers) {
printf ("initial malloc failed\n");
return;
}
for (i = 0; i < serverlen; i++)
servers[i].updated = 0;
#ifdef _WIN32
i = WSAStartup (MAKEWORD (1, 1), &winsockdata);
if (i) {
@ -305,7 +304,7 @@ QW_Master (struct sockaddr_in *addr)
break;
case S2M_HEARTBEAT:
serverlen = QW_AddHeartbeat (&servers, serverlen,
&recvaddr, buf);
&recvaddr, buf, false);
break;
case S2M_SHUTDOWN:
QW_HeartShutdown (&recvaddr, servers, serverlen);
@ -321,6 +320,57 @@ QW_Master (struct sockaddr_in *addr)
free (servers);
}
static int
make_host_addr (const char *host, int port, struct sockaddr_in *host_addr)
{
struct hostent *host_ent;
host_ent = gethostbyname (host);
if (!host_ent)
return -1;
host_addr->sin_family = AF_INET;
memcpy (&host_addr->sin_addr, host_ent->h_addr_list[0],
sizeof (host_addr->sin_addr));
host_addr->sin_port = htons (port);
return 0;
}
static void
read_hosts (const char *fname)
{
FILE *host_file;
int host_port;
char host_name[256];
static char *fake_heartbeat = " ";
char *buf;
struct sockaddr_in host_addr;
host_file = fopen (fname, "rt");
if (!host_file) {
fprintf (stderr, "could not open `%s'\n", fname);
return;
}
while (fgets (host_name, sizeof (host_name), host_file)) {
for (buf = host_name; *buf && !isspace ((byte)*buf) && *buf !=':';
buf++)
;
if (*buf)
*buf++ = 0;
if (*buf)
host_port = atoi (buf);
else
host_port = 27500; //FIXME: magic number (default server port)
if (make_host_addr (host_name, host_port, &host_addr) == -1) {
fprintf (stderr, "could not resolve `%s', skipping", host_name);
continue;
}
serverlen = QW_AddHeartbeat (&servers, serverlen, &host_addr,
fake_heartbeat, true);
}
fclose (host_file);
}
int
main (int argc, char **argv)
{
@ -328,10 +378,18 @@ main (int argc, char **argv)
short port = htons (27000);
#ifndef WIN32 //FIXME
int c;
#endif
while ((c = getopt (argc, argv, "p:")) != -1) {
if (c == 'p') {
servers = calloc (sizeof (server_t), serverlen);
#ifndef WIN32 //FIXME
while ((c = getopt (argc, argv, "p:f:")) != -1) {
switch (c) {
case 'p':
port = htons (atoi (optarg));
break;
case 'f':
read_hosts (optarg);
break;
}
}
#endif