bntrackd.c

打魔兽战网的都知道他是什么

		if (ntohs(packet.packet_version)>=TRACK_VERSION)
		{
		    packet.software[sizeof(packet.software)-1] = '\0';
		    if (strstr(packet.software,"##"))
			fixup_str(packet.software);
		    packet.version[sizeof(packet.version)-1] = '\0';
		    if (strstr(packet.version,"##"))
			fixup_str(packet.version);
		    packet.platform[sizeof(packet.platform)-1] = '\0';
		    if (strstr(packet.platform,"##"))
			fixup_str(packet.platform);
		    packet.server_desc[sizeof(packet.server_desc)-1] = '\0';
		    if (strstr(packet.server_desc,"##"))
			fixup_str(packet.server_desc);
		    packet.server_location[sizeof(packet.server_location)-1] = '\0';
		    if (strstr(packet.server_location,"##"))
			fixup_str(packet.server_location);
		    packet.server_url[sizeof(packet.server_url)-1] = '\0';
		    if (strstr(packet.server_url,"##"))
			fixup_str(packet.server_url);
		    packet.contact_name[sizeof(packet.contact_name)-1] = '\0';
		    if (strstr(packet.contact_name,"##"))
			fixup_str(packet.contact_name);
		    packet.contact_email[sizeof(packet.contact_email)-1] = '\0';
		    if (strstr(packet.contact_email,"##"))
			fixup_str(packet.contact_email);
		    
		    /* Find this server's slot */
		    LIST_TRAVERSE(serverlist_head,curr)
		    {
			server = elem_get_data(curr);
			
			if (!memcmp(&server->address,&cliaddr.sin_addr,sizeof(struct in_addr)))
			{
			    if (ntohl(packet.flags)&TF_SHUTDOWN)
			    {
				list_remove_elem(serverlist_head,&curr);
				xfree(server);
			    }
			    else
			    {
				/* update in place */
				server->info = packet;
				server->updated = time(NULL);
			    }
			    break;
			}
		    }
		    
		    /* Not found? Make a new slot */
		    if (!(ntohl(packet.flags)&TF_SHUTDOWN) && !curr)
		    {
			server = xmalloc(sizeof(t_server));
			server->address = cliaddr.sin_addr;
			server->info = packet;
			server->updated = time(NULL);

			list_append_data(serverlist_head,server);
		    }
		    
		    eventlog(eventlog_level_debug,__FUNCTION__,
			     "Packet received from %s:"
			     " packet_version=%u"
			     " flags=0x%08lx"
			     " port=%hu"
			     " software=\"%s\""
			     " version=\"%s\""
			     " platform=\"%s\""
			     " server_desc=\"%s\""
			     " server_location=\"%s\""
			     " server_url=\"%s\""
			     " contact_name=\"%s\""
			     " contact_email=\"%s\""
			     " uptime=%lu"
			     " total_games=%lu"
			     " total_logins=%lu",
			     inet_ntoa(cliaddr.sin_addr),
			     ntohs(packet.packet_version),
			     (unsigned long)ntohl(packet.flags),
			     ntohs(packet.port),
			     packet.software,
			     packet.version,
			     packet.platform,
			     packet.server_desc,
			     packet.server_location,
			     packet.server_url,
			     packet.contact_name,
			     packet.contact_email,
			     (unsigned long)ntohl(packet.uptime),
			     (unsigned long)ntohl(packet.total_games),
			     (unsigned long)ntohl(packet.total_logins));
		}
		
	    }
	}
	
    }
}


static void usage(char const * progname)
{
    fprintf(stderr,"usage: %s [<options>]\n",progname);
    fprintf(stderr,
	   "  -c COMMAND, --command=COMMAND  execute COMMAND update\n"
           "  -d, --debug                    turn on debug mode\n"
           "  -e SECS, --expire SECS         forget a list entry after SEC seconds\n"
#ifdef DO_DAEMONIZE
           "  -f, --foreground               don't daemonize\n"
#else
           "  -f, --foreground               don't daemonize (default)\n"
#endif
           "  -l FILE, --logfile=FILE        write event messages to FILE\n"
           "  -o FILE, --outfile=FILE        write server list to FILE\n");
    fprintf(stderr,
           "  -p PORT, --port=PORT           listen for announcments on UDP port PORT\n"
           "  -P FILE, --pidfile=FILE        write pid to FILE\n"
           "  -u SECS, --update SECS         write output file every SEC seconds\n"
	   "  -x, --XML                      write output file in XML format\n"
           "  -h, --help, --usage            show this information and exit\n"
           "  -v, --version                  print version number and exit\n");
    exit(STATUS_FAILURE);
}


static void getprefs(int argc, char * argv[])
{
    int a;
    
    prefs.foreground = 0;
    prefs.debug      = 0;
    prefs.expire     = 0;
    prefs.update     = 0;
    prefs.port       = 0;
    prefs.XML_mode   = 0;
    prefs.outfile    = NULL;
    prefs.pidfile    = NULL;
    prefs.process    = NULL;
    prefs.logfile    = NULL;
    
    for (a=1; a<argc; a++)
	if (strncmp(argv[a],"--command=",10)==0)
	{
	    if (prefs.process)
	    {
		fprintf(stderr,"%s: processing command was already specified as \"%s\"\n",argv[0],prefs.process);
		usage(argv[0]);
	    }
	    prefs.process = &argv[a][10];
	}
	else if (strcmp(argv[a],"-c")==0)
	{
	    if (a+1>=argc)
	    {
		fprintf(stderr,"%s: option \"%s\" requires an argument\n",argv[0],argv[a]);
		usage(argv[0]);
	    }
	    if (prefs.process)
	    {
		fprintf(stderr,"%s: processing command was already specified as \"%s\"\n",argv[0],prefs.process);
		usage(argv[0]);
	    }
	    a++;
	    prefs.process = argv[a];
	}
	else if (strcmp(argv[a],"-d")==0 || strcmp(argv[a],"--debug")==0)
	    prefs.debug = 1;
        else if (strncmp(argv[a],"--expire=",9)==0)
        {
            if (prefs.expire)
            {
                fprintf(stderr,"%s: expiration period was already specified as \"%u\"\n",argv[0],prefs.expire);
                usage(argv[0]);
            }
	    if (str_to_uint(&argv[a][9],&prefs.expire)<0)
	    {
		fprintf(stderr,"%s: \"%s\" should be a positive integer\n",argv[0],&argv[a][9]);
		usage(argv[0]);
	    }
        }
        else if (strcmp(argv[a],"-e")==0)
        {
            if (a+1>=argc)
            {
                fprintf(stderr,"%s: option \"%s\" requires an argument\n",argv[0],argv[a]);
                usage(argv[0]);
            }
            if (prefs.expire)
            {
                fprintf(stderr,"%s: expiration period was already specified as \"%u\"\n",argv[0],prefs.expire);
                usage(argv[0]);
            }
            a++;
	    if (str_to_uint(argv[a],&prefs.expire)<0)
	    {
		fprintf(stderr,"%s: \"%s\" should be a positive integer\n",argv[0],argv[a]);
		usage(argv[0]);
	    }
	}
	else if (strcmp(argv[a],"-f")==0 || strcmp(argv[a],"--foreground")==0)
	    prefs.foreground = 1;
        else if (strcmp(argv[a],"-x")==0 || strcmp(argv[a],"--XML")==0)
	    prefs.XML_mode = 1;
	else if (strncmp(argv[a],"--logfile=",10)==0)
	{
	    if (prefs.logfile)
	    {
		fprintf(stderr,"%s: eventlog file was already specified as \"%s\"\n",argv[0],prefs.logfile);
		usage(argv[0]);
	    }
	    prefs.logfile = &argv[a][10];
	}
	else if (strcmp(argv[a],"-l")==0)
	{
	    if (a+1>=argc)
	    {
		fprintf(stderr,"%s: option \"%s\" requires an argument\n",argv[0],argv[a]);
		usage(argv[0]);
	    }
	    if (prefs.logfile)
	    {
		fprintf(stderr,"%s: eventlog file was already specified as \"%s\"\n",argv[0],prefs.logfile);
		usage(argv[0]);
	    }
	    a++;
	    prefs.logfile = argv[a];
	}
	else if (strncmp(argv[a],"--outfile=",10)==0)
	{
	    if (prefs.outfile)
	    {
		fprintf(stderr,"%s: output file was already specified as \"%s\"\n",argv[0],prefs.outfile);
		usage(argv[0]);
	    }
	    prefs.outfile = &argv[a][10];
	}
	else if (strcmp(argv[a],"-o")==0)
	{
	    if (a+1>=argc)
	    {
		fprintf(stderr,"%s: option \"%s\" requires an argument\n",argv[0],argv[a]);
		usage(argv[0]);
	    }
	    if (prefs.outfile)
	    {
		fprintf(stderr,"%s: output file was already specified as \"%s\"\n",argv[0],prefs.outfile);
		usage(argv[0]);
	    }
	    a++;
	    prefs.outfile = argv[a];
	}
	else if (strncmp(argv[a],"--pidfile=",10)==0)
	{
	    if (prefs.pidfile)
	    {
		fprintf(stderr,"%s: pid file was already specified as \"%s\"\n",argv[0],prefs.pidfile);
		usage(argv[0]);
	    }
	    prefs.pidfile = &argv[a][10];
	}
        else if (strncmp(argv[a],"--port=",7)==0)
        {
            if (prefs.port)
            {
                fprintf(stderr,"%s: port number was already specified as \"%hu\"\n",argv[0],prefs.port);
                usage(argv[0]);
            }
	    if (str_to_ushort(&argv[a][7],&prefs.port)<0)
	    {
		fprintf(stderr,"%s: \"%s\" should be a positive integer\n",argv[0],&argv[a][7]);
		usage(argv[0]);
	    }
        }
        else if (strcmp(argv[a],"-p")==0)
        {
            if (a+1>=argc)
            {
                fprintf(stderr,"%s: option \"%s\" requires an argument\n",argv[0],argv[a]);
                usage(argv[0]);
            }
            if (prefs.port)
            {
                fprintf(stderr,"%s: port number was already specified as \"%hu\"\n",argv[0],prefs.port);
                usage(argv[0]);
            }
            a++;
	    if (str_to_ushort(argv[a],&prefs.port)<0)
	    {
		fprintf(stderr,"%s: \"%s\" should be a positive integer\n",argv[0],argv[a]);
		usage(argv[0]);
	    }
        }
	else if (strcmp(argv[a],"-P")==0)
	{
	    if (a+1>=argc)
	    {
		fprintf(stderr,"%s: option \"%s\" requires an argument\n",argv[0],argv[a]);
		usage(argv[0]);
	    }
	    if (prefs.pidfile)
	    {
		fprintf(stderr,"%s: pid file was already specified as \"%s\"\n",argv[0],prefs.pidfile);
		usage(argv[0]);
	    }
	    a++;
	    prefs.pidfile = argv[a];
	}
        else if (strncmp(argv[a],"--update=",9)==0)
        {
            if (prefs.update)
            {
                fprintf(stderr,"%s: update period was already specified as \"%u\"\n",argv[0],prefs.expire);
                usage(argv[0]);
            }
	    if (str_to_uint(&argv[a][9],&prefs.update)<0)
	    {
		fprintf(stderr,"%s: \"%s\" should be a positive integer\n",argv[0],&argv[a][9]);
		usage(argv[0]);
	    }
        }
        else if (strcmp(argv[a],"-u")==0)
        {
            if (a+1>=argc)
            {
                fprintf(stderr,"%s: option \"%s\" requires an argument\n",argv[0],argv[a]);
                usage(argv[0]);
            }
            if (prefs.update)
            {
                fprintf(stderr,"%s: update period was already specified as \"%u\"\n",argv[0],prefs.expire);
                usage(argv[0]);
            }
            a++;
	    if (str_to_uint(argv[a],&prefs.update)<0)
	    {
		fprintf(stderr,"%s: \"%s\" should be a positive integer\n",argv[0],argv[a]);
		usage(argv[0]);
	    }
        }
        else if (strcmp(argv[a],"-h")==0 || strcmp(argv[a],"--help")==0 || strcmp(argv[a],"--usage")
==0)
            usage(argv[0]);
	else if (strcmp(argv[a],"-v")==0 || strcmp(argv[a],"--version")==0)
        {
            printf("version "PVPGN_VERSION"\n");
            exit(0);
        }
	else if (strcmp(argv[a],"--command")==0 || strcmp(argv[a],"--expire")==0 ||
		 strcmp(argv[a],"--logfile")==0 || strcmp(argv[a],"--outfile")==0 ||
		 strcmp(argv[a],"--port")==0 || strcmp(argv[a],"--pidfile")==0 ||
		 strcmp(argv[a],"--update")==0)
	{
	    fprintf(stderr,"%s: option \"%s\" requires and argument.\n",argv[0],argv[a]);
	    usage(argv[0]);
	}
        else
        {
            fprintf(stderr,"%s: unknown option \"%s\"\n",argv[0],argv[a]);
            usage(argv[0]);
        }
    
    if (!prefs.process)
	prefs.process = BNTRACKD_PROCESS;
    if (prefs.expire==0)
	prefs.expire  = BNTRACKD_EXPIRE;
    if (!prefs.logfile)
	prefs.logfile = BNTRACKD_LOGFILE;
    if (!prefs.outfile)
	prefs.outfile = BNTRACKD_OUTFILE;
    if (prefs.port==0)
	prefs.port    = BNTRACKD_SERVER_PORT;
    if (!prefs.pidfile)
	prefs.pidfile = BNTRACKD_PIDFILE;
    if (prefs.expire==0)
	prefs.update  = BNTRACKD_UPDATE;
    
    if (prefs.logfile[0]=='\0')
	prefs.logfile = NULL;
    if (prefs.pidfile[0]=='\0')
	prefs.pidfile = NULL;
}


static void fixup_str(char * str)
{
    char         prev;
    unsigned int i;
    
    for (prev='\0',i=0; i<strlen(str); prev=str[i],i++)
	if (prev=='#' && str[i]=='#')
	    str[i] = '%';
}