diff options
Diffstat (limited to 'ioq3-r437/src/client/cl_net_chan.c')
| -rw-r--r-- | ioq3-r437/src/client/cl_net_chan.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/ioq3-r437/src/client/cl_net_chan.c b/ioq3-r437/src/client/cl_net_chan.c deleted file mode 100644 index 1433c434..00000000 --- a/ioq3-r437/src/client/cl_net_chan.c +++ /dev/null @@ -1,167 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. - -This file is part of Quake III Arena source code. - -Quake III Arena source code 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. - -Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ - -#include "../qcommon/q_shared.h" -#include "../qcommon/qcommon.h" -#include "client.h" - -/* -============== -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 ) { - 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 = 0; - - serverId = MSG_ReadLong(msg); - messageAcknowledge = MSG_ReadLong(msg); - reliableAcknowledge = MSG_ReadLong(msg); - - msg->oob = 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 || 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 ) { - long reliableAcknowledge, i, index; - byte key, *string; - int srdc, sbit, soob; - - srdc = msg->readcount; - sbit = msg->bit; - soob = msg->oob; - - msg->oob = 0; - - reliableAcknowledge = MSG_ReadLong(msg); - - msg->oob = soob; - msg->bit = sbit; - msg->readcount = srdc; - - string = (byte *) 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 || 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; - } -} - -/* -================= -CL_Netchan_TransmitNextFragment -================= -*/ -void CL_Netchan_TransmitNextFragment( netchan_t *chan ) { - Netchan_TransmitNextFragment( chan ); -} - -/* -=============== -CL_Netchan_Transmit -================ -*/ -void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg ) { - MSG_WriteByte( msg, clc_EOF ); - - CL_Netchan_Encode( msg ); - Netchan_Transmit( chan, msg->cursize, msg->data ); -} - -extern int oldsize; -int newsize = 0; - -/* -================= -CL_Netchan_Process -================= -*/ -qboolean CL_Netchan_Process( netchan_t *chan, msg_t *msg ) { - int ret; - - ret = Netchan_Process( chan, msg ); - if (!ret) - return qfalse; - CL_Netchan_Decode( msg ); - newsize += msg->cursize; - return qtrue; -} |