/* ================= CL_CheckForResend Resend a connect message if the last one has timed out ================= */ void CL_CheckForResend( void ) { netadr_t adr; // if the local server is running and we aren't then connect if( cls.state == ca_disconnected && SV_Active( )) { cls.state = ca_connecting; Q_strncpy( cls.servername, "localhost", sizeof( cls.servername )); // we don't need a challenge on the localhost CL_SendConnectPacket(); return; } // resend if we haven't gotten a reply yet if( cls.demoplayback || cls.state != ca_connecting ) return; if(( host.realtime - cls.connect_time ) < 10.0f ) return; if( !NET_StringToAdr( cls.servername, &adr )) { MsgDev( D_ERROR, "CL_CheckForResend: bad server address\n" ); cls.state = ca_disconnected; return; } if( adr.port == 0 ) adr.port = BF_BigShort( PORT_SERVER ); cls.connect_time = host.realtime; // for retransmit requests MsgDev( D_NOTE, "Connecting to %s...\n", cls.servername ); Netchan_OutOfBandPrint( NS_CLIENT, adr, "getchallenge\n" ); }
/* * Resend a connect message if the last one has timed out */ void CL_CheckForResend(void) { netadr_t adr; /* if the local server is running and we aren't just connect */ if ((cls.state == ca_disconnected) && Com_ServerState()) { cls.state = ca_connecting; Q_strlcpy(cls.servername, "localhost", sizeof(cls.servername)); /* we don't need a challenge on the localhost */ CL_SendConnectPacket(); return; } /* resend if we haven't gotten a reply yet */ if (cls.state != ca_connecting) { return; } if (cls.realtime - cls.connect_time < 3000) { return; } if (!NET_StringToAdr(cls.servername, &adr)) { Com_Printf("Bad server address\n"); cls.state = ca_disconnected; return; } if (adr.port == 0) { adr.port = BigShort(PORT_SERVER); } cls.connect_time = cls.realtime; Com_Printf("Connecting to %s...\n", cls.servername); Netchan_OutOfBandPrint(NS_CLIENT, adr, "getchallenge\n"); }
/* ================= CL_CheckForResend Resend a connect message if the last one has timed out ================= */ void CL_CheckForResend (void) { char data[2048]; double t1, t2; if (cls.state == ca_disconnected && com_serveractive) { // if the local server is running and we are not, then connect cls.nqprotocol = false; strlcpy (cls.servername, "local", sizeof(cls.servername)); NET_StringToAdr ("local", &cls.server_adr); CL_SendConnectPacket (); // we don't need a challenge on the local server // FIXME: cls.state = ca_connecting so that we don't send the packet twice? return; } if (cls.state != ca_disconnected || !connect_time) return; if (cls.realtime - connect_time < 5.0) return; t1 = Sys_DoubleTime (); if (!NET_StringToAdr (cls.servername, &cls.server_adr)) { Com_Printf ("Bad server address\n"); connect_time = 0; return; } t2 = Sys_DoubleTime (); connect_time = cls.realtime + t2 - t1; // for retransmit requests if (cls.server_adr.port == 0) cls.server_adr.port = BigShort (cls.nqprotocol ? 26000 : PORT_SERVER); Com_Printf ("Connecting to %s...\n", cls.servername); if (cls.nqprotocol) { memcpy (data, "\x80\x00\x00\x0C" "\x01" "QUAKE\x00" "\x03", 12); NET_SendPacket (NS_CLIENT, 12, data, cls.server_adr); } else { sprintf (data, "\xff\xff\xff\xff" "getchallenge\n"); NET_SendPacket (NS_CLIENT, strlen(data), data, cls.server_adr); } }
/* ================= CL_CheckForResend Resend a connect message if the last one has timed out ================= */ void CL_CheckForResend (void) { netadr_t adr; // if the local server is running and we aren't // then connect if (cls.state == ca_disconnected && Com_ServerState() ) { cls.state = ca_connecting; strncpy (cls.servername, "localhost", sizeof(cls.servername)-1); // we don't need a challenge on the localhost CL_SendConnectPacket (); return; // cls.connect_time = -99999; // CL_CheckForResend() will fire immediately } // resend if we haven't gotten a reply yet if (cls.state != ca_connecting) return; if (cls.realtime - cls.connect_time < 3000) return; if (!NET_StringToAdr (cls.servername, &adr)) { Com_Printf ("Bad server address\n"); cls.state = ca_disconnected; return; } if (adr.port == 0) adr.port = BigShort (PORT_SERVER); cls.connect_time = cls.realtime; // for retransmit requests Com_Printf ("Connecting to %s...\n", cls.servername); Netchan_OutOfBandPrint (NS_CLIENT, adr, "getchallenge\n"); }
/* ================= CL_ConnectionlessPacket Responses to broadcasts, etc ================= */ void CL_ConnectionlessPacket( netadr_t from, sizebuf_t *msg ) { char *args; char *c, buf[MAX_SYSPATH]; int len = sizeof( buf ), i = 0; netadr_t servadr; BF_Clear( msg ); BF_ReadLong( msg ); // skip the -1 args = BF_ReadStringLine( msg ); Cmd_TokenizeString( args ); c = Cmd_Argv( 0 ); MsgDev( D_NOTE, "CL_ConnectionlessPacket: %s : %s\n", NET_AdrToString( from ), c ); // server connection if( !Q_strcmp( c, "client_connect" )) { if( cls.state == ca_connected ) { MsgDev( D_INFO, "Dup connect received. Ignored.\n"); return; } Netchan_Setup( NS_CLIENT, &cls.netchan, from, net_qport->integer); BF_WriteByte( &cls.netchan.message, clc_stringcmd ); BF_WriteString( &cls.netchan.message, "new" ); cls.state = ca_connected; cl.validsequence = 0; // haven't gotten a valid frame update yet cl.delta_sequence = -1; // we'll request a full delta from the baseline cls.lastoutgoingcommand = -1; // we don't have a backed up cmd history yet cls.nextcmdtime = host.realtime; // we can send a cmd right away CL_StartupDemoHeader (); } else if( !Q_strcmp( c, "info" )) { // server responding to a status broadcast CL_ParseStatusMessage( from, msg ); } else if( !Q_strcmp( c, "netinfo" )) { // server responding to a status broadcast CL_ParseNETInfoMessage( from, msg ); } else if( !Q_strcmp( c, "cmd" )) { // remote command from gui front end if( !NET_IsLocalAddress( from )) { Msg( "Command packet from remote host. Ignored.\n" ); return; } #ifdef XASH_SDL SDL_RestoreWindow( host.hWnd ); #endif args = BF_ReadString( msg ); Cbuf_AddText( args ); Cbuf_AddText( "\n" ); } else if( !Q_strcmp( c, "print" )) { // print command from somewhere Msg("remote: %s\n", BF_ReadString( msg ) ); } else if( !Q_strcmp( c, "ping" )) { // ping from somewhere Netchan_OutOfBandPrint( NS_CLIENT, from, "ack" ); } else if( !Q_strcmp( c, "challenge" )) { // challenge from the server we are connecting to cls.challenge = Q_atoi( Cmd_Argv( 1 )); CL_SendConnectPacket(); return; } else if( !Q_strcmp( c, "echo" )) { // echo request from server Netchan_OutOfBandPrint( NS_CLIENT, from, "%s", Cmd_Argv( 1 )); } else if( !Q_strcmp( c, "disconnect" )) { // a disconnect message from the server, which will happen if the server // dropped the connection but it is still getting packets from us CL_Disconnect(); CL_ClearEdicts(); } else if( !Q_strcmp( c, "f") ) { // serverlist got from masterserver while( !msg->bOverflow ) { servadr.type = NA_IP; // 4 bytes for IP BF_ReadBytes( msg, servadr.ip, sizeof( servadr.ip )); // 2 bytes for Port servadr.port = BF_ReadShort( msg ); if( !servadr.port ) break; MsgDev( D_INFO, "Found server: %s\n", NET_AdrToString( servadr )); NET_Config( true ); // allow remote Netchan_OutOfBandPrint( NS_CLIENT, servadr, "info %i", PROTOCOL_VERSION ); } // execute at next frame preventing relation on fps Cbuf_AddText("menu_resetping\n"); } else if( clgame.dllFuncs.pfnConnectionlessPacket( &from, args, buf, &len )) { // user out of band message (must be handled in CL_ConnectionlessPacket) if( len > 0 ) Netchan_OutOfBand( NS_SERVER, from, len, (byte *)buf ); } else MsgDev( D_ERROR, "Bad connectionless packet from %s:\n%s\n", NET_AdrToString( from ), args ); }
/* ================= CL_ConnectionlessPacket Responses to broadcasts, etc ================= */ void CL_ConnectionlessPacket( netadr_t from, sizebuf_t *msg ) { char *args; char *c, buf[MAX_SYSPATH]; int len = sizeof( buf ); int dataoffset = 0; netadr_t servadr; BF_Clear( msg ); BF_ReadLong( msg ); // skip the -1 args = BF_ReadStringLine( msg ); Cmd_TokenizeString( args ); c = Cmd_Argv( 0 ); MsgDev( D_NOTE, "CL_ConnectionlessPacket: %s : %s\n", NET_AdrToString( from ), c ); // server connection if( !Q_strcmp( c, "client_connect" )) { if( cls.state == ca_connected ) { MsgDev( D_INFO, "dup connect received. ignored\n"); return; } Netchan_Setup( NS_CLIENT, &cls.netchan, from, Cvar_VariableValue( "net_qport" )); BF_WriteByte( &cls.netchan.message, clc_stringcmd ); BF_WriteString( &cls.netchan.message, "new" ); cls.state = ca_connected; cl.validsequence = 0; // haven't gotten a valid frame update yet cl.delta_sequence = -1; // we'll request a full delta from the baseline cls.lastoutgoingcommand = -1; // we don't have a backed up cmd history yet cls.nextcmdtime = host.realtime; // we can send a cmd right away CL_StartupDemoHeader (); UI_SetActiveMenu( false ); } else if( !Q_strcmp( c, "info" )) { // server responding to a status broadcast CL_ParseStatusMessage( from, msg ); } else if( !Q_strcmp( c, "netinfo" )) { // server responding to a status broadcast CL_ParseNETInfoMessage( from, msg ); } else if( !Q_strcmp( c, "cmd" )) { // remote command from gui front end if( !NET_IsLocalAddress( from )) { Msg( "Command packet from remote host. Ignored.\n" ); return; } ShowWindow( host.hWnd, SW_RESTORE ); SetForegroundWindow ( host.hWnd ); args = BF_ReadString( msg ); Cbuf_AddText( args ); Cbuf_AddText( "\n" ); } else if( !Q_strcmp( c, "print" )) { // print command from somewhere args = BF_ReadString( msg ); Msg( args ); } else if( !Q_strcmp( c, "ping" )) { // ping from somewhere Netchan_OutOfBandPrint( NS_CLIENT, from, "ack" ); } else if( !Q_strcmp( c, "challenge" )) { // challenge from the server we are connecting to cls.challenge = Q_atoi( Cmd_Argv( 1 )); CL_SendConnectPacket(); return; } else if( !Q_strcmp( c, "echo" )) { // echo request from server Netchan_OutOfBandPrint( NS_CLIENT, from, "%s", Cmd_Argv( 1 )); } else if( !Q_strcmp( c, "disconnect" )) { // a disconnect message from the server, which will happen if the server // dropped the connection but it is still getting packets from us CL_Disconnect(); } else if( clgame.dllFuncs.pfnConnectionlessPacket( &from, args, buf, &len )) { // user out of band message (must be handled in CL_ConnectionlessPacket) if( len > 0 ) Netchan_OutOfBand( NS_SERVER, from, len, buf ); } else if( msg->pData[0] == 0xFF && msg->pData[1] == 0xFF && msg->pData[2] == 0xFF && msg->pData[3] == 0xFF && msg->pData[4] == 0x66 && msg->pData[5] == 0x0A ) { dataoffset = 6; while( 1 ) { servadr.type = NA_IP; servadr.ip[0] = msg->pData[dataoffset + 0]; servadr.ip[1] = msg->pData[dataoffset + 1]; servadr.ip[2] = msg->pData[dataoffset + 2]; servadr.ip[3] = msg->pData[dataoffset + 3]; servadr.port = *(word *)&msg->pData[dataoffset + 4]; if( !servadr.port ) break; MsgDev( D_INFO, "Found server: %s\n", NET_AdrToString( servadr )); NET_Config( true ); // allow remote Netchan_OutOfBandPrint( NS_CLIENT, servadr, "info %i", PROTOCOL_VERSION ); dataoffset += 6; } } else MsgDev( D_ERROR, "bad connectionless packet from %s:\n%s\n", NET_AdrToString( from ), args ); }