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/* |
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* static char *rcsid_metaserver_c = |
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* "$Id$"; |
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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 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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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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struct hostent *hostbn = gethostbyname(settings.meta_server); |
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if (hostbn == NULL) { |
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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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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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char hostname[MAX_BUF], domain[MAX_BUF]; |
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if (gethostname(hostname, MAX_BUF-1)) { |
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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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#else |
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if (getdomainname(domain, MAX_BUF-1)) { |
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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 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) 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. This operation below should not be that |
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* costly. |
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*/ |
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for (pl=first_player; pl!=NULL; pl=pl->next) |
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if (!pl->hidden && pl->ob->map) num_players++; |
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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, |
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(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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LOG(llevDebug,"metaserver_update: sendto failed, err = %d\n", errno); |
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} |
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} |
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|
