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|
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/* |
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* static char *rcsid_metaserver_c = |
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* "$Id: metaserver.C,v 1.2 2006-08-29 08:01:38 root Exp $"; |
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*/ |
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|
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/* |
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CrossFire, A Multiplayer game for X-windows |
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|
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Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
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Copyright (C) 1992 Frank Tore Johansen |
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|
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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|
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The authors can be reached via e-mail at crossfire-devel@real-time.com |
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*/ |
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|
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/** |
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* \file |
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* \date 2003-12-02 |
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* Meta-server related functions. |
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*/ |
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|
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#include <global.h> |
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|
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#ifndef WIN32 /* ---win32 exclude unix header files */ |
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# include <sys/types.h> |
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# include <sys/socket.h> |
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# include <netinet/in.h> |
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# include <netdb.h> |
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# include <arpa/inet.h> |
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|
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#endif /* end win32 */ |
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|
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static int metafd = -1; |
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static struct sockaddr_in sock; |
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|
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/** |
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* Connects to metaserver. |
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* |
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* Its only called once. If we are not |
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* trying to contact the metaserver of the connection attempt fails, metafd will be |
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* set to -1. We use this instead of messing with the settings.meta_on so that |
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* that can be examined to at least see what the user was trying to do. |
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*/ |
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void |
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metaserver_init (void) |
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{ |
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|
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#ifdef WIN32 /* ***win32 metaserver_init(): init win32 socket */ |
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struct hostent *hostbn; |
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int temp = 1; |
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#endif |
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|
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if (!settings.meta_on) |
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{ |
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metafd = -1; |
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return; |
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} |
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|
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if (isdigit (settings.meta_server[0])) |
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sock.sin_addr.s_addr = inet_addr (settings.meta_server); |
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else |
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{ |
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struct hostent *hostbn = gethostbyname (settings.meta_server); |
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|
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if (hostbn == NULL) |
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{ |
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LOG (llevDebug, "metaserver_init: Unable to resolve hostname %s\n", settings.meta_server); |
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return; |
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} |
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memcpy (&sock.sin_addr, hostbn->h_addr, hostbn->h_length); |
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} |
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#ifdef WIN32 /* ***win32 metaserver_init(): init win32 socket */ |
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ioctlsocket (metafd, FIONBIO, &temp); |
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#else |
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fcntl (metafd, F_SETFL, O_NONBLOCK); |
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#endif |
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if ((metafd = socket (AF_INET, SOCK_DGRAM, 0)) == -1) |
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{ |
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LOG (llevDebug, "metaserver_init: Unable to create socket, err %d\n", errno); |
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return; |
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} |
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sock.sin_family = AF_INET; |
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sock.sin_port = htons (settings.meta_port); |
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|
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/* No hostname specified, so lets try to figure one out */ |
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if (settings.meta_host[0] == 0) |
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{ |
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char hostname[MAX_BUF], domain[MAX_BUF]; |
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|
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if (gethostname (hostname, MAX_BUF - 1)) |
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{ |
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LOG (llevDebug, "metaserver_init: gethostname failed - will not report hostname\n"); |
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return; |
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} |
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|
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#ifdef WIN32 /* ***win32 metaserver_init(): gethostbyname! */ |
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hostbn = gethostbyname (hostname); |
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if (hostbn != (struct hostent *) NULL) /* quick hack */ |
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memcpy (domain, hostbn->h_addr, hostbn->h_length); |
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|
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if (hostbn == (struct hostent *) NULL) |
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{ |
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#else |
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if (getdomainname (domain, MAX_BUF - 1)) |
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{ |
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#endif /* win32 */ |
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LOG (llevDebug, "metaserver_init: getdomainname failed - will not report hostname\n"); |
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return; |
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} |
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/* Potential overrun here but unlikely to occur */ |
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sprintf (settings.meta_host, "%s.%s", hostname, domain); |
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} |
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} |
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|
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/** |
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* Updates our info in the metaserver |
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*/ |
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void |
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metaserver_update (void) |
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{ |
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char data[MAX_BUF], num_players = 0; |
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player *pl; |
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|
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if (metafd == -1) |
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return; /* No valid connection */ |
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|
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/* We could use socket_info.nconns, but that is not quite as accurate, |
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* as connections in the progress of being established, are listening |
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* but don't have a player, etc. The checks below are basically the |
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* same as for the who commands with the addition that WIZ, AFK, and BOT |
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* players are not counted. |
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*/ |
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for (pl = first_player; pl != NULL; pl = pl->next) |
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{ |
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if (pl->ob->map == NULL) |
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continue; |
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if (pl->hidden) |
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continue; |
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if (QUERY_FLAG (pl->ob, FLAG_WIZ)) |
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continue; |
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if (QUERY_FLAG (pl->ob, FLAG_AFK)) |
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continue; |
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if (pl->state != ST_PLAYING && pl->state != ST_GET_PARTY_PASSWORD) |
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continue; |
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//if (pl->socket.is_bot) continue; |
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num_players++; |
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} |
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|
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sprintf (data, "%s|%d|%s|%s|%d|%d|%ld", settings.meta_host, num_players, VERSION "+", |
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settings.meta_comment, cst_tot.ibytes, cst_tot.obytes, (long) time (NULL) - cst_tot.time_start); |
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if (sendto (metafd, data, strlen (data), 0, (struct sockaddr *) &sock, sizeof (sock)) < 0) |
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{ |
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LOG (llevDebug, "metaserver_update: sendto failed, err = %d\n", errno); |
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} |
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} |
