Initial commit.

2013-04-04 14:32:05 -07:00
parent ba5c81da32
commit d71d53e8ec
2180 changed files with 1393544 additions and 1 deletions
--- a/codemp/client/cl_net_chan.cpp
+++ b/codemp/client/cl_net_chan.cpp
@@ -0,0 +1,179 @@
+//Anything above this #include will be ignored by the compiler
+#include "../qcommon/exe_headers.h"
+
+#include "client.h"
+
+// TTimo: unused, commenting out to make gcc happy
+#if 1
+/*
+==============
+CL_Netchan_Encode
+
+	// first 12 bytes of the data are always:
+	long serverId;
+	long messageAcknowledge;
+	long reliableAcknowledge;
+
+==============
+*/
+static void CL_Netchan_Encode( msg_t *msg ) {
+#ifdef _XBOX
+	return;
+#endif
+	int serverId, messageAcknowledge, reliableAcknowledge;
+	int i, index, srdc, sbit, soob;
+	byte key, *string;
+
+	if ( msg->cursize <= CL_ENCODE_START ) {
+		return;
+	}
+
+        srdc = msg->readcount;
+        sbit = msg->bit;
+        soob = msg->oob;
+        
+        msg->bit = 0;
+        msg->readcount = 0;
+        msg->oob = (qboolean)0;
+        
+        serverId = MSG_ReadLong(msg);
+	messageAcknowledge = MSG_ReadLong(msg);
+	reliableAcknowledge = MSG_ReadLong(msg);
+
+        msg->oob = (qboolean)soob;
+        msg->bit = sbit;
+        msg->readcount = srdc;
+        
+	string = (byte *)clc->serverCommands[ reliableAcknowledge & (MAX_RELIABLE_COMMANDS-1) ];
+	index = 0;
+	//
+	key = clc->challenge ^ serverId ^ messageAcknowledge;
+	for (i = CL_ENCODE_START; i < msg->cursize; i++) {
+		// modify the key with the last received now acknowledged server command
+		if (!string[index])
+			index = 0;
+		if (/*string[index] > 127 || */	// eurofix: remove this so we can chat in european languages...	-ste
+			string[index] == '%') 
+		{
+			key ^= '.' << (i & 1);
+		}
+		else {
+			key ^= string[index] << (i & 1);
+		}
+		index++;
+		// encode the data with this key
+		*(msg->data + i) = (*(msg->data + i)) ^ key;
+	}
+}
+
+/*
+==============
+CL_Netchan_Decode
+
+	// first four bytes of the data are always:
+	long reliableAcknowledge;
+
+==============
+*/
+static void CL_Netchan_Decode( msg_t *msg ) {
+#ifdef _XBOX
+	return;
+#endif
+	long reliableAcknowledge, i, index;
+	byte key, *string;
+        int	srdc, sbit, soob;
+
+        srdc = msg->readcount;
+        sbit = msg->bit;
+        soob = msg->oob;
+        
+        msg->oob = (qboolean)0;
+        
+	reliableAcknowledge = MSG_ReadLong(msg);
+
+        msg->oob = (qboolean)soob;
+        msg->bit = sbit;
+        msg->readcount = srdc;
+
+	string = (unsigned char *)clc->reliableCommands[ reliableAcknowledge & (MAX_RELIABLE_COMMANDS-1) ];
+	index = 0;
+	// xor the client challenge with the netchan sequence number (need something that changes every message)
+	key = clc->challenge ^ LittleLong( *(unsigned *)msg->data );
+	for (i = msg->readcount + CL_DECODE_START; i < msg->cursize; i++) {
+		// modify the key with the last sent and with this message acknowledged client command
+		if (!string[index])
+			index = 0;
+		if (/*string[index] > 127 || */	// eurofix: remove this so we can chat in european languages...	-ste
+			string[index] == '%') 
+		{
+			key ^= '.' << (i & 1);
+		}
+		else {
+			key ^= string[index] << (i & 1);
+		}
+		index++;
+		// decode the data with this key
+		*(msg->data + i) = *(msg->data + i) ^ key;
+	}
+}
+#endif
+
+/*
+=================
+CL_Netchan_TransmitNextFragment
+=================
+*/
+void CL_Netchan_TransmitNextFragment( netchan_t *chan ) {
+	Netchan_TransmitNextFragment( chan );
+}
+
+//byte chksum[65536];
+
+/*
+===============
+CL_Netchan_Transmit
+================
+*/
+void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg )
+{
+	MSG_WriteByte( msg, clc_EOF );
+
+	CL_Netchan_Encode( msg );
+	if( !Netchan_Transmit( chan, msg->cursize, msg->data ) )
+	{
+		// Don't call Com_Error if we're already disconnecting!
+		if( com_errorEntered )
+			return;
+
+		// Quickly detect dead connections: (may want to put in some relaxation here?)
+		Com_Error( ERR_DROP, "@MENUS_LOST_CONNECTION" );
+	}
+}
+
+extern 	int oldsize;
+int newsize = 0;
+
+/*
+=================
+CL_Netchan_Process
+=================
+*/
+qboolean CL_Netchan_Process( netchan_t *chan, msg_t *msg ) {
+	int ret;
+//	int i;
+//	static		int newsize = 0;
+
+	ret = Netchan_Process( chan, msg );
+	if (!ret)
+		return qfalse;
+	CL_Netchan_Decode( msg );
+//	Huff_Decompress( msg, CL_DECODE_START );
+//	for(i=CL_DECODE_START+msg->readcount;i<msg->cursize;i++) {
+//		if (msg->data[i] != chksum[i-(CL_DECODE_START+msg->readcount)]) {
+//			Com_Error(ERR_DROP,"bad %d v %d\n", msg->data[i], chksum[i-(CL_DECODE_START+msg->readcount)]);
+//		}
+//	}
+	newsize += msg->cursize;
+//	Com_Printf("saved %d to %d (%d%%)\n", (oldsize>>3), newsize, 100-(newsize*100/(oldsize>>3)));
+	return qtrue;
+}