mirror of
https://git.code.sf.net/p/quake/quakeforge-old
synced 2024-11-22 20:02:09 +00:00
1127 lines
20 KiB
C
1127 lines
20 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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Portions Copyright (C) 1999,2000 Nelson Rush.
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Copyright (C) 1999,2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// common.c -- misc functions used in client and server
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#include <ctype.h>
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#include "common.h"
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#include "crc.h"
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#include "sys.h"
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#include "cmd.h"
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#include "console.h"
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#ifdef SERVERONLY
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#include "qwsvdef.h"
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#else
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#include "quakedef.h"
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#endif
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#include "config.h"
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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void COM_InitFilesystem (void);
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void COM_Path_f (void);
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qboolean standard_quake = true, rogue, hipnotic;
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extern cvar_t developer;
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//============================================================================
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// ClearLink is used for new headnodes
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void ClearLink (link_t *l)
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{
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l->prev = l->next = l;
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}
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void RemoveLink (link_t *l)
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{
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l->next->prev = l->prev;
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l->prev->next = l->next;
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}
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void InsertLinkBefore (link_t *l, link_t *before)
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{
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l->next = before;
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l->prev = before->prev;
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l->prev->next = l;
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l->next->prev = l;
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}
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void InsertLinkAfter (link_t *l, link_t *after)
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{
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l->next = after->next;
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l->prev = after;
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l->prev->next = l;
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l->next->prev = l;
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}
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/*
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==============================================================================
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MESSAGE IO FUNCTIONS
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Handles byte ordering and avoids alignment errors
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==============================================================================
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*/
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//
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// writing functions
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//
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void MSG_WriteChar (sizebuf_t *sb, int c)
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{
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byte *buf;
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#ifdef PARANOID
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if (c < -128 || c > 127)
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Sys_Error ("MSG_WriteChar: range error");
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#endif
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buf = SZ_GetSpace (sb, 1);
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buf[0] = c;
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}
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void MSG_WriteByte (sizebuf_t *sb, int c)
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{
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byte *buf;
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#ifdef PARANOID
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if (c < 0 || c > 255)
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Sys_Error ("MSG_WriteByte: range error");
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#endif
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buf = SZ_GetSpace (sb, 1);
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buf[0] = c;
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}
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void MSG_WriteShort (sizebuf_t *sb, int c)
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{
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byte *buf;
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#ifdef PARANOID
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if (c < ((short)0x8000) || c > (short)0x7fff)
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Sys_Error ("MSG_WriteShort: range error");
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#endif
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buf = SZ_GetSpace (sb, 2);
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buf[0] = c&0xff;
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buf[1] = c>>8;
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}
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void MSG_WriteLong (sizebuf_t *sb, int c)
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{
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byte *buf;
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buf = SZ_GetSpace (sb, 4);
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buf[0] = c&0xff;
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buf[1] = (c>>8)&0xff;
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buf[2] = (c>>16)&0xff;
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buf[3] = c>>24;
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}
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void MSG_WriteFloat (sizebuf_t *sb, float f)
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{
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union
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{
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float f;
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int l;
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} dat;
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dat.f = f;
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dat.l = LittleLong (dat.l);
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SZ_Write (sb, &dat.l, 4);
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}
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void MSG_WriteString (sizebuf_t *sb, char *s)
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{
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if (!s)
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SZ_Write (sb, "", 1);
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else
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SZ_Write (sb, s, Q_strlen(s)+1);
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}
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void MSG_WriteCoord (sizebuf_t *sb, float f)
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{
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MSG_WriteShort (sb, (int)(f*8));
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}
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void MSG_WriteAngle (sizebuf_t *sb, float f)
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{
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MSG_WriteByte (sb, (int)(f*256/360) & 255);
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}
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void MSG_WriteAngle16 (sizebuf_t *sb, float f)
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{
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MSG_WriteShort (sb, (int)(f*65536/360) & 65535);
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}
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void MSG_WriteDeltaUsercmd (sizebuf_t *buf, usercmd_t *from, usercmd_t *cmd)
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{
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int bits;
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//
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// send the movement message
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//
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bits = 0;
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if (cmd->angles[0] != from->angles[0])
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bits |= CM_ANGLE1;
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if (cmd->angles[1] != from->angles[1])
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bits |= CM_ANGLE2;
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if (cmd->angles[2] != from->angles[2])
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bits |= CM_ANGLE3;
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if (cmd->forwardmove != from->forwardmove)
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bits |= CM_FORWARD;
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if (cmd->sidemove != from->sidemove)
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bits |= CM_SIDE;
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if (cmd->upmove != from->upmove)
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bits |= CM_UP;
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if (cmd->buttons != from->buttons)
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bits |= CM_BUTTONS;
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if (cmd->impulse != from->impulse)
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bits |= CM_IMPULSE;
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MSG_WriteByte (buf, bits);
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if (bits & CM_ANGLE1)
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MSG_WriteAngle16 (buf, cmd->angles[0]);
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if (bits & CM_ANGLE2)
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MSG_WriteAngle16 (buf, cmd->angles[1]);
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if (bits & CM_ANGLE3)
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MSG_WriteAngle16 (buf, cmd->angles[2]);
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if (bits & CM_FORWARD)
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MSG_WriteShort (buf, cmd->forwardmove);
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if (bits & CM_SIDE)
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MSG_WriteShort (buf, cmd->sidemove);
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if (bits & CM_UP)
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MSG_WriteShort (buf, cmd->upmove);
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if (bits & CM_BUTTONS)
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MSG_WriteByte (buf, cmd->buttons);
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if (bits & CM_IMPULSE)
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MSG_WriteByte (buf, cmd->impulse);
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MSG_WriteByte (buf, cmd->msec);
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}
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//
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// reading functions
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//
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int msg_readcount;
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qboolean msg_badread;
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void MSG_BeginReading (void)
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{
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msg_readcount = 0;
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msg_badread = false;
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}
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int MSG_GetReadCount(void)
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{
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return msg_readcount;
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}
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// returns -1 and sets msg_badread if no more characters are available
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int MSG_ReadChar (void)
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{
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int c;
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if (msg_readcount+1 > net_message.cursize)
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{
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msg_badread = true;
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return -1;
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}
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c = (signed char)net_message.data[msg_readcount];
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msg_readcount++;
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return c;
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}
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int MSG_ReadByte (void)
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{
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int c;
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if (msg_readcount+1 > net_message.cursize)
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{
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msg_badread = true;
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return -1;
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}
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c = (unsigned char)net_message.data[msg_readcount];
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msg_readcount++;
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return c;
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}
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int MSG_ReadShort (void)
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{
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int c;
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if (msg_readcount+2 > net_message.cursize)
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{
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msg_badread = true;
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return -1;
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}
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c = (short)(net_message.data[msg_readcount]
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+ (net_message.data[msg_readcount+1]<<8));
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msg_readcount += 2;
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return c;
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}
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int MSG_ReadLong (void)
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{
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int c;
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if (msg_readcount+4 > net_message.cursize)
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{
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msg_badread = true;
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return -1;
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}
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c = net_message.data[msg_readcount]
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+ (net_message.data[msg_readcount+1]<<8)
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+ (net_message.data[msg_readcount+2]<<16)
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+ (net_message.data[msg_readcount+3]<<24);
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msg_readcount += 4;
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return c;
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}
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float MSG_ReadFloat (void)
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{
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union
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{
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byte b[4];
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float f;
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int l;
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} dat;
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dat.b[0] = net_message.data[msg_readcount];
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dat.b[1] = net_message.data[msg_readcount+1];
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dat.b[2] = net_message.data[msg_readcount+2];
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dat.b[3] = net_message.data[msg_readcount+3];
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msg_readcount += 4;
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dat.l = LittleLong (dat.l);
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return dat.f;
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}
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char *MSG_ReadString (void)
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{
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static char string[2048];
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int l,c;
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l = 0;
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do
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{
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c = MSG_ReadChar ();
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if (c == -1 || c == 0)
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break;
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string[l] = c;
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l++;
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} while (l < sizeof(string)-1);
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string[l] = 0;
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return string;
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}
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char *MSG_ReadStringLine (void)
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{
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static char string[2048];
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int l,c;
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l = 0;
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do
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{
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c = MSG_ReadChar ();
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if (c == -1 || c == 0 || c == '\n')
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break;
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string[l] = c;
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l++;
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} while (l < sizeof(string)-1);
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string[l] = 0;
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return string;
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}
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float MSG_ReadCoord (void)
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{
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return MSG_ReadShort() * (1.0/8);
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}
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float MSG_ReadAngle (void)
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{
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return MSG_ReadChar() * (360.0/256);
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}
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float MSG_ReadAngle16 (void)
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{
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return MSG_ReadShort() * (360.0/65536);
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}
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void MSG_ReadDeltaUsercmd (usercmd_t *from, usercmd_t *move)
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{
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int bits;
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memcpy (move, from, sizeof(*move));
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bits = MSG_ReadByte ();
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// read current angles
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if (bits & CM_ANGLE1)
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move->angles[0] = MSG_ReadAngle16 ();
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if (bits & CM_ANGLE2)
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move->angles[1] = MSG_ReadAngle16 ();
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if (bits & CM_ANGLE3)
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move->angles[2] = MSG_ReadAngle16 ();
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// read movement
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if (bits & CM_FORWARD)
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move->forwardmove = MSG_ReadShort ();
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if (bits & CM_SIDE)
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move->sidemove = MSG_ReadShort ();
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if (bits & CM_UP)
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move->upmove = MSG_ReadShort ();
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// read buttons
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if (bits & CM_BUTTONS)
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move->buttons = MSG_ReadByte ();
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if (bits & CM_IMPULSE)
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move->impulse = MSG_ReadByte ();
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// read time to run command
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move->msec = MSG_ReadByte ();
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}
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//===========================================================================
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void SZ_Clear (sizebuf_t *buf)
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{
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buf->cursize = 0;
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buf->overflowed = false;
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}
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void *SZ_GetSpace (sizebuf_t *buf, int length)
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{
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void *data;
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if (buf->cursize + length > buf->maxsize)
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{
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if (!buf->allowoverflow)
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Sys_Error ("SZ_GetSpace: overflow without allowoverflow set (%d)", buf->maxsize);
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if (length > buf->maxsize)
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Sys_Error ("SZ_GetSpace: %i is > full buffer size", length);
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Sys_Printf ("SZ_GetSpace: overflow\n"); // because Con_Printf may be redirected
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SZ_Clear (buf);
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buf->overflowed = true;
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}
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data = buf->data + buf->cursize;
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buf->cursize += length;
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return data;
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}
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void SZ_Write (sizebuf_t *buf, void *data, int length)
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{
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Q_memcpy (SZ_GetSpace(buf,length),data,length);
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}
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void SZ_Print (sizebuf_t *buf, char *data)
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{
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int len;
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len = Q_strlen(data)+1;
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if (!buf->cursize || buf->data[buf->cursize-1])
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Q_memcpy ((byte *)SZ_GetSpace(buf, len),data,len); // no trailing 0
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else
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Q_memcpy ((byte *)SZ_GetSpace(buf, len-1)-1,data,len); // write over trailing 0
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}
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|
|
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//============================================================================
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|
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/*
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============
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COM_SkipPath
|
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============
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*/
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char *COM_SkipPath (char *pathname)
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{
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char *last;
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last = pathname;
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while (*pathname)
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{
|
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if (*pathname=='/')
|
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last = pathname+1;
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pathname++;
|
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}
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return last;
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}
|
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|
|
/*
|
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============
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|
COM_StripExtension
|
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============
|
|
*/
|
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void COM_StripExtension (char *in, char *out)
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{
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while (*in && *in != '.')
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*out++ = *in++;
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*out = 0;
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}
|
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|
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/*
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============
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COM_FileExtension
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============
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*/
|
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char *COM_FileExtension (char *in)
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{
|
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static char exten[8];
|
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int i;
|
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while (*in && *in != '.')
|
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in++;
|
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if (!*in)
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return "";
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in++;
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for (i=0 ; i<7 && *in ; i++,in++)
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exten[i] = *in;
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exten[i] = 0;
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return exten;
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}
|
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|
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/*
|
|
============
|
|
COM_FileBase
|
|
============
|
|
*/
|
|
void COM_FileBase (char *in, char *out)
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|
{
|
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char *s, *s2;
|
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s = in + strlen(in) - 1;
|
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|
|
while (s != in && *s != '.')
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s--;
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for (s2 = s ; *s2 && *s2 != '/' ; s2--)
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;
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if (s-s2 < 2)
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strcpy (out,"?model?");
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|
else
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{
|
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s--;
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strncpy (out,s2+1, s-s2);
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out[s-s2] = 0;
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|
}
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|
}
|
|
|
|
|
|
/*
|
|
==================
|
|
COM_DefaultExtension
|
|
==================
|
|
*/
|
|
void COM_DefaultExtension (char *path, char *extension)
|
|
{
|
|
char *src;
|
|
//
|
|
// if path doesn't have a .EXT, append extension
|
|
// (extension should include the .)
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|
//
|
|
src = path + strlen(path) - 1;
|
|
|
|
while (*src != '/' && src != path)
|
|
{
|
|
if (*src == '.')
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return; // it has an extension
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|
src--;
|
|
}
|
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|
|
strcat (path, extension);
|
|
}
|
|
|
|
//============================================================================
|
|
|
|
char com_token[1024];
|
|
|
|
|
|
/*
|
|
==============
|
|
COM_Parse
|
|
|
|
Parse a token out of a string
|
|
==============
|
|
*/
|
|
char *COM_Parse (char *data)
|
|
{
|
|
int c;
|
|
int len;
|
|
|
|
len = 0;
|
|
com_token[0] = 0;
|
|
|
|
if (!data)
|
|
return NULL;
|
|
|
|
// skip whitespace
|
|
skipwhite:
|
|
while ( (c = *data) <= ' ')
|
|
{
|
|
if (c == 0)
|
|
return NULL; // end of file;
|
|
data++;
|
|
}
|
|
|
|
// skip // comments
|
|
if (c=='/' && data[1] == '/')
|
|
{
|
|
while (*data && *data != '\n')
|
|
data++;
|
|
goto skipwhite;
|
|
}
|
|
|
|
|
|
// handle quoted strings specially
|
|
if (c == '\"')
|
|
{
|
|
data++;
|
|
while (1)
|
|
{
|
|
c = *data++;
|
|
if (c=='\"' || !c)
|
|
{
|
|
com_token[len] = 0;
|
|
return data;
|
|
}
|
|
com_token[len] = c;
|
|
len++;
|
|
}
|
|
}
|
|
|
|
// parse a regular word
|
|
do
|
|
{
|
|
com_token[len] = c;
|
|
data++;
|
|
len++;
|
|
c = *data;
|
|
} while (c>32);
|
|
|
|
com_token[len] = 0;
|
|
return data;
|
|
}
|
|
|
|
/*
|
|
================
|
|
COM_Init
|
|
================
|
|
*/
|
|
void COM_Init (void)
|
|
{
|
|
#ifdef WORDS_BIGENDIAN
|
|
BigShort = ShortNoSwap;
|
|
LittleShort = ShortSwap;
|
|
BigLong = LongNoSwap;
|
|
LittleLong = LongSwap;
|
|
BigFloat = FloatNoSwap;
|
|
LittleFloat = FloatSwap;
|
|
#else
|
|
BigShort = ShortSwap;
|
|
LittleShort = ShortNoSwap;
|
|
BigLong = LongSwap;
|
|
LittleLong = LongNoSwap;
|
|
BigFloat = FloatSwap;
|
|
LittleFloat = FloatNoSwap;
|
|
#endif
|
|
|
|
Cmd_AddCommand ("path", COM_Path_f);
|
|
|
|
COM_InitFilesystem ();
|
|
register_check ();
|
|
}
|
|
|
|
|
|
/*
|
|
============
|
|
va
|
|
|
|
does a varargs printf into a temp buffer, so I don't need to have
|
|
varargs versions of all text functions.
|
|
============
|
|
*/
|
|
char *va(char *format, ...)
|
|
{
|
|
va_list argptr;
|
|
static char string[1024];
|
|
|
|
va_start (argptr, format);
|
|
vsnprintf (string, sizeof(string), format, argptr);
|
|
va_end (argptr);
|
|
|
|
return string;
|
|
}
|
|
|
|
|
|
/// just for debugging
|
|
int memsearch (byte *start, int count, int search)
|
|
{
|
|
int i;
|
|
|
|
for (i=0 ; i<count ; i++)
|
|
if (start[i] == search)
|
|
return i;
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
=====================================================================
|
|
|
|
INFO STRINGS
|
|
|
|
=====================================================================
|
|
*/
|
|
|
|
/*
|
|
===============
|
|
Info_ValueForKey
|
|
|
|
Searches the string for the given
|
|
key and returns the associated value, or an empty string.
|
|
===============
|
|
*/
|
|
char *Info_ValueForKey (char *s, char *key)
|
|
{
|
|
char pkey[512];
|
|
static char value[4][512]; // use two buffers so compares
|
|
// work without stomping on each other
|
|
static int valueindex;
|
|
char *o;
|
|
|
|
valueindex = (valueindex + 1) % 4;
|
|
if (*s == '\\')
|
|
s++;
|
|
while (1)
|
|
{
|
|
o = pkey;
|
|
while (*s != '\\')
|
|
{
|
|
if (!*s)
|
|
return "";
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
s++;
|
|
|
|
o = value[valueindex];
|
|
|
|
while (*s != '\\' && *s)
|
|
{
|
|
if (!*s)
|
|
return "";
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
|
|
if (!strcmp (key, pkey) )
|
|
return value[valueindex];
|
|
|
|
if (!*s)
|
|
return "";
|
|
s++;
|
|
}
|
|
}
|
|
|
|
void Info_RemoveKey (char *s, char *key)
|
|
{
|
|
char *start;
|
|
char pkey[512];
|
|
char value[512];
|
|
char *o;
|
|
|
|
if (strstr (key, "\\"))
|
|
{
|
|
Con_Printf ("Can't use a key with a \\\n");
|
|
return;
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
start = s;
|
|
if (*s == '\\')
|
|
s++;
|
|
o = pkey;
|
|
while (*s != '\\')
|
|
{
|
|
if (!*s)
|
|
return;
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
s++;
|
|
|
|
o = value;
|
|
while (*s != '\\' && *s)
|
|
{
|
|
if (!*s)
|
|
return;
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
|
|
if (!strcmp (key, pkey) )
|
|
{
|
|
strcpy (start, s); // remove this part
|
|
return;
|
|
}
|
|
|
|
if (!*s)
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
void Info_RemovePrefixedKeys (char *start, char prefix)
|
|
{
|
|
char *s;
|
|
char pkey[512];
|
|
char value[512];
|
|
char *o;
|
|
|
|
s = start;
|
|
|
|
while (1)
|
|
{
|
|
if (*s == '\\')
|
|
s++;
|
|
o = pkey;
|
|
while (*s != '\\')
|
|
{
|
|
if (!*s)
|
|
return;
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
s++;
|
|
|
|
o = value;
|
|
while (*s != '\\' && *s)
|
|
{
|
|
if (!*s)
|
|
return;
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
|
|
if (pkey[0] == prefix)
|
|
{
|
|
Info_RemoveKey (start, pkey);
|
|
s = start;
|
|
}
|
|
|
|
if (!*s)
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
void Info_SetValueForStarKey (char *s, char *key, char *value, int maxsize)
|
|
{
|
|
char new[1024], *v;
|
|
int c;
|
|
#ifdef SERVERONLY
|
|
extern cvar_t sv_highchars;
|
|
#endif
|
|
|
|
if (strstr (key, "\\") || strstr (value, "\\") )
|
|
{
|
|
Con_Printf ("Can't use keys or values with a \\\n");
|
|
return;
|
|
}
|
|
|
|
if (strstr (key, "\"") || strstr (value, "\"") )
|
|
{
|
|
Con_Printf ("Can't use keys or values with a \"\n");
|
|
return;
|
|
}
|
|
|
|
if (strlen(key) > 63 || strlen(value) > 63)
|
|
{
|
|
Con_Printf ("Keys and values must be < 64 characters.\n");
|
|
return;
|
|
}
|
|
|
|
// this next line is kinda trippy
|
|
if (*(v = Info_ValueForKey(s, key))) {
|
|
// key exists, make sure we have enough room for new value,
|
|
// if we don't, don't change it!
|
|
if (strlen(value) - strlen(v) + strlen(s) > maxsize) {
|
|
Con_Printf ("Info 1 string length exceeded\n");
|
|
return;
|
|
}
|
|
}
|
|
Info_RemoveKey (s, key);
|
|
if (!value || !strlen(value))
|
|
return;
|
|
|
|
snprintf(new, sizeof(new), "\\%s\\%s", key, value);
|
|
|
|
if ((int)(strlen(new) + strlen(s)) > maxsize)
|
|
{
|
|
Con_Printf ("Info 2 string length exceeded\n");
|
|
return;
|
|
}
|
|
|
|
// only copy ascii values
|
|
s += strlen(s);
|
|
v = new;
|
|
while (*v)
|
|
{
|
|
c = (unsigned char)*v++;
|
|
#ifndef SERVERONLY
|
|
// client only allows highbits on name
|
|
if (stricmp(key, "name") != 0) {
|
|
c &= 127;
|
|
if (c < 32 || c > 127)
|
|
continue;
|
|
// auto lowercase team
|
|
if (stricmp(key, "team") == 0)
|
|
c = tolower(c);
|
|
}
|
|
#else
|
|
if (!sv_highchars.value) {
|
|
c &= 127;
|
|
if (c < 32 || c > 127)
|
|
continue;
|
|
}
|
|
#endif
|
|
// c &= 127; // strip high bits
|
|
if (c > 13) // && c < 127)
|
|
*s++ = c;
|
|
}
|
|
*s = 0;
|
|
}
|
|
|
|
void Info_SetValueForKey (char *s, char *key, char *value, int maxsize)
|
|
{
|
|
if (key[0] == '*')
|
|
{
|
|
Con_Printf ("Can't set * keys\n");
|
|
return;
|
|
}
|
|
|
|
Info_SetValueForStarKey (s, key, value, maxsize);
|
|
}
|
|
|
|
void Info_Print (char *s)
|
|
{
|
|
char key[512];
|
|
char value[512];
|
|
char *o;
|
|
int l;
|
|
|
|
if (*s == '\\')
|
|
s++;
|
|
while (*s)
|
|
{
|
|
o = key;
|
|
while (*s && *s != '\\')
|
|
*o++ = *s++;
|
|
|
|
l = o - key;
|
|
if (l < 20)
|
|
{
|
|
memset (o, ' ', 20-l);
|
|
key[20] = 0;
|
|
}
|
|
else
|
|
*o = 0;
|
|
Con_Printf ("%s", key);
|
|
|
|
if (!*s)
|
|
{
|
|
Con_Printf ("MISSING VALUE\n");
|
|
return;
|
|
}
|
|
|
|
o = value;
|
|
s++;
|
|
while (*s && *s != '\\')
|
|
*o++ = *s++;
|
|
*o = 0;
|
|
|
|
if (*s)
|
|
s++;
|
|
Con_Printf ("%s\n", value);
|
|
}
|
|
}
|
|
|
|
static byte chktbl[1024 + 4] = {
|
|
0x78,0xd2,0x94,0xe3,0x41,0xec,0xd6,0xd5,0xcb,0xfc,0xdb,0x8a,0x4b,0xcc,0x85,0x01,
|
|
0x23,0xd2,0xe5,0xf2,0x29,0xa7,0x45,0x94,0x4a,0x62,0xe3,0xa5,0x6f,0x3f,0xe1,0x7a,
|
|
0x64,0xed,0x5c,0x99,0x29,0x87,0xa8,0x78,0x59,0x0d,0xaa,0x0f,0x25,0x0a,0x5c,0x58,
|
|
0xfb,0x00,0xa7,0xa8,0x8a,0x1d,0x86,0x80,0xc5,0x1f,0xd2,0x28,0x69,0x71,0x58,0xc3,
|
|
0x51,0x90,0xe1,0xf8,0x6a,0xf3,0x8f,0xb0,0x68,0xdf,0x95,0x40,0x5c,0xe4,0x24,0x6b,
|
|
0x29,0x19,0x71,0x3f,0x42,0x63,0x6c,0x48,0xe7,0xad,0xa8,0x4b,0x91,0x8f,0x42,0x36,
|
|
0x34,0xe7,0x32,0x55,0x59,0x2d,0x36,0x38,0x38,0x59,0x9b,0x08,0x16,0x4d,0x8d,0xf8,
|
|
0x0a,0xa4,0x52,0x01,0xbb,0x52,0xa9,0xfd,0x40,0x18,0x97,0x37,0xff,0xc9,0x82,0x27,
|
|
0xb2,0x64,0x60,0xce,0x00,0xd9,0x04,0xf0,0x9e,0x99,0xbd,0xce,0x8f,0x90,0x4a,0xdd,
|
|
0xe1,0xec,0x19,0x14,0xb1,0xfb,0xca,0x1e,0x98,0x0f,0xd4,0xcb,0x80,0xd6,0x05,0x63,
|
|
0xfd,0xa0,0x74,0xa6,0x86,0xf6,0x19,0x98,0x76,0x27,0x68,0xf7,0xe9,0x09,0x9a,0xf2,
|
|
0x2e,0x42,0xe1,0xbe,0x64,0x48,0x2a,0x74,0x30,0xbb,0x07,0xcc,0x1f,0xd4,0x91,0x9d,
|
|
0xac,0x55,0x53,0x25,0xb9,0x64,0xf7,0x58,0x4c,0x34,0x16,0xbc,0xf6,0x12,0x2b,0x65,
|
|
0x68,0x25,0x2e,0x29,0x1f,0xbb,0xb9,0xee,0x6d,0x0c,0x8e,0xbb,0xd2,0x5f,0x1d,0x8f,
|
|
0xc1,0x39,0xf9,0x8d,0xc0,0x39,0x75,0xcf,0x25,0x17,0xbe,0x96,0xaf,0x98,0x9f,0x5f,
|
|
0x65,0x15,0xc4,0x62,0xf8,0x55,0xfc,0xab,0x54,0xcf,0xdc,0x14,0x06,0xc8,0xfc,0x42,
|
|
0xd3,0xf0,0xad,0x10,0x08,0xcd,0xd4,0x11,0xbb,0xca,0x67,0xc6,0x48,0x5f,0x9d,0x59,
|
|
0xe3,0xe8,0x53,0x67,0x27,0x2d,0x34,0x9e,0x9e,0x24,0x29,0xdb,0x69,0x99,0x86,0xf9,
|
|
0x20,0xb5,0xbb,0x5b,0xb0,0xf9,0xc3,0x67,0xad,0x1c,0x9c,0xf7,0xcc,0xef,0xce,0x69,
|
|
0xe0,0x26,0x8f,0x79,0xbd,0xca,0x10,0x17,0xda,0xa9,0x88,0x57,0x9b,0x15,0x24,0xba,
|
|
0x84,0xd0,0xeb,0x4d,0x14,0xf5,0xfc,0xe6,0x51,0x6c,0x6f,0x64,0x6b,0x73,0xec,0x85,
|
|
0xf1,0x6f,0xe1,0x67,0x25,0x10,0x77,0x32,0x9e,0x85,0x6e,0x69,0xb1,0x83,0x00,0xe4,
|
|
0x13,0xa4,0x45,0x34,0x3b,0x40,0xff,0x41,0x82,0x89,0x79,0x57,0xfd,0xd2,0x8e,0xe8,
|
|
0xfc,0x1d,0x19,0x21,0x12,0x00,0xd7,0x66,0xe5,0xc7,0x10,0x1d,0xcb,0x75,0xe8,0xfa,
|
|
0xb6,0xee,0x7b,0x2f,0x1a,0x25,0x24,0xb9,0x9f,0x1d,0x78,0xfb,0x84,0xd0,0x17,0x05,
|
|
0x71,0xb3,0xc8,0x18,0xff,0x62,0xee,0xed,0x53,0xab,0x78,0xd3,0x65,0x2d,0xbb,0xc7,
|
|
0xc1,0xe7,0x70,0xa2,0x43,0x2c,0x7c,0xc7,0x16,0x04,0xd2,0x45,0xd5,0x6b,0x6c,0x7a,
|
|
0x5e,0xa1,0x50,0x2e,0x31,0x5b,0xcc,0xe8,0x65,0x8b,0x16,0x85,0xbf,0x82,0x83,0xfb,
|
|
0xde,0x9f,0x36,0x48,0x32,0x79,0xd6,0x9b,0xfb,0x52,0x45,0xbf,0x43,0xf7,0x0b,0x0b,
|
|
0x19,0x19,0x31,0xc3,0x85,0xec,0x1d,0x8c,0x20,0xf0,0x3a,0xfa,0x80,0x4d,0x2c,0x7d,
|
|
0xac,0x60,0x09,0xc0,0x40,0xee,0xb9,0xeb,0x13,0x5b,0xe8,0x2b,0xb1,0x20,0xf0,0xce,
|
|
0x4c,0xbd,0xc6,0x04,0x86,0x70,0xc6,0x33,0xc3,0x15,0x0f,0x65,0x19,0xfd,0xc2,0xd3,
|
|
|
|
// map checksum goes here
|
|
0x00,0x00,0x00,0x00
|
|
};
|
|
|
|
#if 0
|
|
static byte chkbuf[16 + 60 + 4];
|
|
|
|
static unsigned last_mapchecksum = 0;
|
|
|
|
/*
|
|
====================
|
|
COM_BlockSequenceCheckByte
|
|
|
|
For proxy protecting
|
|
====================
|
|
*/
|
|
byte COM_BlockSequenceCheckByte (byte *base, int length, int sequence, unsigned mapchecksum)
|
|
{
|
|
int checksum;
|
|
byte *p;
|
|
|
|
if (last_mapchecksum != mapchecksum) {
|
|
last_mapchecksum = mapchecksum;
|
|
chktbl[1024] = (mapchecksum & 0xff000000) >> 24;
|
|
chktbl[1025] = (mapchecksum & 0x00ff0000) >> 16;
|
|
chktbl[1026] = (mapchecksum & 0x0000ff00) >> 8;
|
|
chktbl[1027] = (mapchecksum & 0x000000ff);
|
|
|
|
Com_BlockFullChecksum (chktbl, sizeof(chktbl), chkbuf);
|
|
}
|
|
|
|
p = chktbl + (sequence % (sizeof(chktbl) - 8));
|
|
|
|
if (length > 60)
|
|
length = 60;
|
|
memcpy (chkbuf + 16, base, length);
|
|
|
|
length += 16;
|
|
|
|
chkbuf[length] = (sequence & 0xff) ^ p[0];
|
|
chkbuf[length+1] = p[1];
|
|
chkbuf[length+2] = ((sequence>>8) & 0xff) ^ p[2];
|
|
chkbuf[length+3] = p[3];
|
|
|
|
length += 4;
|
|
|
|
checksum = LittleLong(Com_BlockChecksum (chkbuf, length));
|
|
|
|
checksum &= 0xff;
|
|
|
|
return checksum;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
====================
|
|
COM_BlockSequenceCRCByte
|
|
|
|
For proxy protecting
|
|
====================
|
|
*/
|
|
byte COM_BlockSequenceCRCByte (byte *base, int length, int sequence)
|
|
{
|
|
unsigned short crc;
|
|
byte *p;
|
|
byte chkb[60 + 4];
|
|
|
|
p = chktbl + (sequence % (sizeof(chktbl) - 8));
|
|
|
|
if (length > 60)
|
|
length = 60;
|
|
memcpy (chkb, base, length);
|
|
|
|
chkb[length] = (sequence & 0xff) ^ p[0];
|
|
chkb[length+1] = p[1];
|
|
chkb[length+2] = ((sequence>>8) & 0xff) ^ p[2];
|
|
chkb[length+3] = p[3];
|
|
|
|
length += 4;
|
|
|
|
crc = CRC_Block(chkb, length);
|
|
|
|
crc &= 0xff;
|
|
|
|
return crc;
|
|
}
|