server/socket/metaserver.C


/*
 * static char *rcsid_metaserver_c =
 *    "$Id: metaserver.C,v 1.2 2006-08-29 08:01:38 root Exp $";
 */

/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 2002 Mark Wedel & Crossfire Development Team
    Copyright (C) 1992 Frank Tore Johansen

    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, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    The authors can be reached via e-mail at crossfire-devel@real-time.com
*/

/**
 * \file
 * \date 2003-12-02
 * Meta-server related functions.
 */

#include <global.h>

#ifndef WIN32                   /* ---win32 exclude unix header files */
# include <sys/types.h>
# include <sys/socket.h>
# include <netinet/in.h>
# include <netdb.h>
# include <arpa/inet.h>

#endif /* end win32 */

static int metafd = -1;
static struct sockaddr_in sock;

/**
 * Connects to metaserver.
 *
 * Its only called once.  If we are not
 * trying to contact the metaserver of the connection attempt fails, metafd will be
 * set to -1.  We use this instead of messing with the settings.meta_on so that
 * that can be examined to at least see what the user was trying to do.
 */
void
metaserver_init (void)
{

#ifdef WIN32                    /* ***win32 metaserver_init(): init win32 socket */
  struct hostent *hostbn;
  int temp = 1;
#endif

  if (!settings.meta_on)
    {
      metafd = -1;
      return;
    }

  if (isdigit (settings.meta_server[0]))
    sock.sin_addr.s_addr = inet_addr (settings.meta_server);
  else
    {
      struct hostent *hostbn = gethostbyname (settings.meta_server);

      if (hostbn == NULL)
        {
          LOG (llevDebug, "metaserver_init: Unable to resolve hostname %s\n", settings.meta_server);
          return;
        }
      memcpy (&sock.sin_addr, hostbn->h_addr, hostbn->h_length);
    }
#ifdef WIN32                    /* ***win32 metaserver_init(): init win32 socket */
  ioctlsocket (metafd, FIONBIO, &temp);
#else
  fcntl (metafd, F_SETFL, O_NONBLOCK);
#endif
  if ((metafd = socket (AF_INET, SOCK_DGRAM, 0)) == -1)
    {
      LOG (llevDebug, "metaserver_init: Unable to create socket, err %d\n", errno);
      return;
    }
  sock.sin_family = AF_INET;
  sock.sin_port = htons (settings.meta_port);

  /* No hostname specified, so lets try to figure one out */
  if (settings.meta_host[0] == 0)
    {
      char hostname[MAX_BUF], domain[MAX_BUF];

      if (gethostname (hostname, MAX_BUF - 1))
        {
          LOG (llevDebug, "metaserver_init: gethostname failed - will not report hostname\n");
          return;
        }

#ifdef WIN32                    /* ***win32 metaserver_init(): gethostbyname! */
      hostbn = gethostbyname (hostname);
      if (hostbn != (struct hostent *) NULL)    /* quick hack */
        memcpy (domain, hostbn->h_addr, hostbn->h_length);

      if (hostbn == (struct hostent *) NULL)
        {
#else
      if (getdomainname (domain, MAX_BUF - 1))
        {
#endif /* win32 */
          LOG (llevDebug, "metaserver_init: getdomainname failed - will not report hostname\n");
          return;
        }
      /* Potential overrun here but unlikely to occur */
      sprintf (settings.meta_host, "%s.%s", hostname, domain);
    }
}

/**
 * Updates our info in the metaserver
 */
void
metaserver_update (void)
{
  char data[MAX_BUF], num_players = 0;
  player *pl;

  if (metafd == -1)
    return;                     /* No valid connection */

  /* We could use socket_info.nconns, but that is not quite as accurate,
   * as connections in the progress of being established, are listening
   * but don't have a player, etc.  The checks below are basically the
   * same as for the who commands with the addition that WIZ, AFK, and BOT
   * players are not counted.
   */
  for (pl = first_player; pl != NULL; pl = pl->next)
    {
      if (pl->ob->map == NULL)
        continue;
      if (pl->hidden)
        continue;
      if (QUERY_FLAG (pl->ob, FLAG_WIZ))
        continue;
      if (QUERY_FLAG (pl->ob, FLAG_AFK))
        continue;
      if (pl->state != ST_PLAYING && pl->state != ST_GET_PARTY_PASSWORD)
        continue;
      //if (pl->socket.is_bot) continue;
      num_players++;
    }

  sprintf (data, "%s|%d|%s|%s|%d|%d|%ld", settings.meta_host, num_players, VERSION "+",
           settings.meta_comment, cst_tot.ibytes, cst_tot.obytes, (long) time (NULL) - cst_tot.time_start);
  if (sendto (metafd, data, strlen (data), 0, (struct sockaddr *) &sock, sizeof (sock)) < 0)
    {
      LOG (llevDebug, "metaserver_update: sendto failed, err = %d\n", errno);
    }
}
Revision:	1.3
Committed:	Sun Sep 10 13:43:33 2006 UTC (17 years, 8 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.2:	+97 -78 lines
Log Message:	indent
#	User	Rev	Content
1	root	1.3
2	elmex	1.1	/*
3			* static char *rcsid_metaserver_c =
4	root	1.3	* "$Id: metaserver.C,v 1.2 2006-08-29 08:01:38 root Exp $";
5	elmex	1.1	*/
6
7			/*
8			CrossFire, A Multiplayer game for X-windows
9
10			Copyright (C) 2002 Mark Wedel & Crossfire Development Team
11			Copyright (C) 1992 Frank Tore Johansen
12
13			This program is free software; you can redistribute it and/or modify
14			it under the terms of the GNU General Public License as published by
15			the Free Software Foundation; either version 2 of the License, or
16			(at your option) any later version.
17
18			This program is distributed in the hope that it will be useful,
19			but WITHOUT ANY WARRANTY; without even the implied warranty of
20			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21			GNU General Public License for more details.
22
23			You should have received a copy of the GNU General Public License
24			along with this program; if not, write to the Free Software
25			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26
27			The authors can be reached via e-mail at crossfire-devel@real-time.com
28			*/
29
30			/**
31			* \file
32			* \date 2003-12-02
33			* Meta-server related functions.
34			*/
35
36			#include <global.h>
37
38	root	1.3	#ifndef WIN32 /* ---win32 exclude unix header files */
39			# include <sys/types.h>
40			# include <sys/socket.h>
41			# include <netinet/in.h>
42			# include <netdb.h>
43			# include <arpa/inet.h>
44	elmex	1.1
45			#endif /* end win32 */
46
47	root	1.3	static int metafd = -1;
48	elmex	1.1	static struct sockaddr_in sock;
49
50			/**
51			* Connects to metaserver.
52			*
53			* Its only called once. If we are not
54			* trying to contact the metaserver of the connection attempt fails, metafd will be
55			* set to -1. We use this instead of messing with the settings.meta_on so that
56			* that can be examined to at least see what the user was trying to do.
57			*/
58	root	1.3	void
59			metaserver_init (void)
60	elmex	1.1	{
61
62	root	1.3	#ifdef WIN32 /* **win32 metaserver_init(): init win32 socket /
63			struct hostent *hostbn;
64			int temp = 1;
65	elmex	1.1	#endif
66
67	root	1.3	if (!settings.meta_on)
68			{
69			metafd = -1;
70			return;
71			}
72
73			if (isdigit (settings.meta_server[0]))
74			sock.sin_addr.s_addr = inet_addr (settings.meta_server);
75			else
76			{
77			struct hostent *hostbn = gethostbyname (settings.meta_server);
78
79			if (hostbn == NULL)
80			{
81			LOG (llevDebug, "metaserver_init: Unable to resolve hostname %s\n", settings.meta_server);
82			return;
83	root	1.2	}
84	root	1.3	memcpy (&sock.sin_addr, hostbn->h_addr, hostbn->h_length);
85	elmex	1.1	}
86	root	1.3	#ifdef WIN32 /* **win32 metaserver_init(): init win32 socket /
87			ioctlsocket (metafd, FIONBIO, &temp);
88			#else
89			fcntl (metafd, F_SETFL, O_NONBLOCK);
90	elmex	1.1	#endif
91	root	1.3	if ((metafd = socket (AF_INET, SOCK_DGRAM, 0)) == -1)
92			{
93			LOG (llevDebug, "metaserver_init: Unable to create socket, err %d\n", errno);
94			return;
95			}
96			sock.sin_family = AF_INET;
97			sock.sin_port = htons (settings.meta_port);
98
99			/* No hostname specified, so lets try to figure one out */
100			if (settings.meta_host[0] == 0)
101			{
102			char hostname[MAX_BUF], domain[MAX_BUF];
103
104			if (gethostname (hostname, MAX_BUF - 1))
105			{
106			LOG (llevDebug, "metaserver_init: gethostname failed - will not report hostname\n");
107			return;
108	root	1.2	}
109	elmex	1.1
110	root	1.3	#ifdef WIN32 /* **win32 metaserver_init(): gethostbyname! /
111			hostbn = gethostbyname (hostname);
112			if (hostbn != (struct hostent ) NULL) / quick hack */
113			memcpy (domain, hostbn->h_addr, hostbn->h_length);
114	elmex	1.1
115	root	1.3	if (hostbn == (struct hostent *) NULL)
116			{
117	elmex	1.1	#else
118	root	1.3	if (getdomainname (domain, MAX_BUF - 1))
119			{
120	elmex	1.1	#endif /* win32 */
121	root	1.3	LOG (llevDebug, "metaserver_init: getdomainname failed - will not report hostname\n");
122			return;
123	root	1.2	}
124	root	1.3	/* Potential overrun here but unlikely to occur */
125			sprintf (settings.meta_host, "%s.%s", hostname, domain);
126	elmex	1.1	}
127			}
128
129			/**
130			* Updates our info in the metaserver
131			*/
132	root	1.3	void
133			metaserver_update (void)
134	elmex	1.1	{
135	root	1.3	char data[MAX_BUF], num_players = 0;
136			player *pl;
137	elmex	1.1
138	root	1.3	if (metafd == -1)
139			return; /* No valid connection */
140	elmex	1.1
141	root	1.3	/* We could use socket_info.nconns, but that is not quite as accurate,
142			* as connections in the progress of being established, are listening
143			* but don't have a player, etc. The checks below are basically the
144			* same as for the who commands with the addition that WIZ, AFK, and BOT
145			* players are not counted.
146			*/
147			for (pl = first_player; pl != NULL; pl = pl->next)
148			{
149			if (pl->ob->map == NULL)
150			continue;
151			if (pl->hidden)
152			continue;
153			if (QUERY_FLAG (pl->ob, FLAG_WIZ))
154			continue;
155			if (QUERY_FLAG (pl->ob, FLAG_AFK))
156			continue;
157			if (pl->state != ST_PLAYING && pl->state != ST_GET_PARTY_PASSWORD)
158			continue;
159			//if (pl->socket.is_bot) continue;
160			num_players++;
161			}
162
163			sprintf (data, "%s\|%d\|%s\|%s\|%d\|%d\|%ld", settings.meta_host, num_players, VERSION "+",
164			settings.meta_comment, cst_tot.ibytes, cst_tot.obytes, (long) time (NULL) - cst_tot.time_start);
165			if (sendto (metafd, data, strlen (data), 0, (struct sockaddr *) &sock, sizeof (sock)) < 0)
166			{
167			LOG (llevDebug, "metaserver_update: sendto failed, err = %d\n", errno);
168	elmex	1.1	}
169			}