524 lines
14 KiB
C
524 lines
14 KiB
C
/*
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Copyright (C) 1997-2001 Id Software, Inc.
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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 <windows.h>
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#include "engine.h"
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#define MAXPRINTMSG 4096
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jmp_buf abortframe;
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int com_argc;
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char *com_argv[MAX_NUM_ARGVS+1];
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double realtime;
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cvar_t *host_speeds;
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int server_state;
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/*
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============================================================================
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CLIENT / SERVER interactions
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============================================================================
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*/
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static int rd_target;
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static char *rd_buffer;
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static int rd_buffersize;
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static void (*rd_flush)(int target, char *buffer);
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void Com_BeginRedirect (int target, char *buffer, int buffersize, void (*flush))
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{
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if (!target || !buffer || !buffersize || !flush)
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return;
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rd_target = target;
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rd_buffer = buffer;
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rd_buffersize = buffersize;
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rd_flush = flush;
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*rd_buffer = 0;
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}
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void Com_EndRedirect (void)
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{
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rd_flush(rd_target, rd_buffer);
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rd_target = 0;
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rd_buffer = NULL;
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rd_buffersize = 0;
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rd_flush = NULL;
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}
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/*
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=============
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Com_Error_f
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Just throw a fatal error to
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test error shutdown procedures
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=============
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*/
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void Com_Error_f (void)
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{
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Sys_Error("%s", Cmd_Argv(1));
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}
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/*
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=============
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Com_Error
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Both client and server can use this, and it will
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do the apropriate things.
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=============
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*/
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void Com_Error (int code, char *fmt, ...)
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{
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va_list argptr;
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static char msg[MAXPRINTMSG];
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static bool recursive;
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if (recursive) std.error ("recursive error after: %s", msg);
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recursive = true;
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va_start (argptr,fmt);
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vsprintf (msg,fmt,argptr);
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va_end (argptr);
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host.state = HOST_ERROR;
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if (code == ERR_DISCONNECT)
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{
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CL_Drop ();
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recursive = false;
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longjmp (abortframe, -1);
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}
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else if (code == ERR_DROP)
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{
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Msg ("********************\nERROR: %s\n********************\n", msg);
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SV_Shutdown (va("Server crashed: %s\n", msg), false);
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CL_Drop ();
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recursive = false;
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longjmp (abortframe, -1);
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}
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else
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{
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// print out where the crash happened, if it was caused by QC (and do a cleanup)
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SV_Shutdown (va("Server fatal crashed: %s\n", msg), false);
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CL_Shutdown ();
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}
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std.error("%s", msg);
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}
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/*
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=============
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Com_Printf
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Both client and server can use this, and it will output
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to the apropriate place.
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=============
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*/
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void Com_Printf (char *fmt, ...)
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{
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va_list argptr;
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char msg[MAXPRINTMSG];
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va_start (argptr,fmt);
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vsprintf (msg,fmt,argptr);
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va_end (argptr);
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if (rd_target)
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{
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if ((strlen (msg) + strlen(rd_buffer)) > (rd_buffersize - 1))
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{
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rd_flush(rd_target, rd_buffer);
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*rd_buffer = 0;
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}
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strcat (rd_buffer, msg);
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return;
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}
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Con_Print (msg);
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}
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/*
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================
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Com_DPrintf
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A Msg that only shows up in developer mode > 0
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================
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*/
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void Com_DPrintf (int level, char *fmt, ...)
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{
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va_list argptr;
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char msg[MAXPRINTMSG];
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// don't confuse non-developers with techie stuff...
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if(host.developer >= level)
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{
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va_start (argptr,fmt);
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vsprintf (msg,fmt,argptr);
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va_end (argptr);
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Msg ("%s", msg);
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}
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}
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/*
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================
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Com_DWarnf
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A Warning that only shows up in debug mode
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================
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*/
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void Com_DWarnf (char *fmt, ...)
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{
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va_list argptr;
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char msg[MAXPRINTMSG];
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// don't confuse non-developers with techie stuff...
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if (!host.debug) return;
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va_start (argptr,fmt);
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vsprintf (msg,fmt,argptr);
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va_end (argptr);
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Msg ("%s", msg);
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}
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/*
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=============
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Com_Quit
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Both client and server can use this, and it will
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do the apropriate things.
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=============
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*/
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void Com_Quit (void)
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{
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SV_Shutdown ("Server quit\n", false);
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CL_Shutdown ();
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Sys_Quit ();
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}
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/*
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==================
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Com_ServerState
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==================
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*/
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int Com_ServerState (void)
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{
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return server_state;
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}
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/*
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==================
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Com_SetServerState
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==================
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*/
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void Com_SetServerState (int state)
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{
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server_state = state;
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}
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//============================================================================
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/*
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================
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CheckParm
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Returns the position (1 to argc-1) in the program's argument list
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where the given parameter apears, or 0 if not present
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================
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*/
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int CheckParm (const char *parm)
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{
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int i;
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for (i = 1; i < com_argc; i++ )
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{
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// NEXTSTEP sometimes clears appkit vars.
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if (!com_argv[i]) continue;
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if (!strcmp (parm, com_argv[i])) return i;
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}
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return 0;
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}
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bool _GetParmFromCmdLine( char *parm, char *out, size_t size )
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{
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int argc = CheckParm( parm );
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if(!argc) return false;
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if(!out) return false;
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strncpy( out, com_argv[argc+1], size );
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return true;
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}
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int COM_Argc (void)
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{
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return com_argc;
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}
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char *COM_Argv (int arg)
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{
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if (arg < 0 || arg >= com_argc || !com_argv[arg])
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return "";
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return com_argv[arg];
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}
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void COM_ClearArgv (int arg)
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{
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if (arg < 0 || arg >= com_argc || !com_argv[arg])
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return;
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com_argv[arg] = "";
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}
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/*
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================
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COM_InitArgv
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================
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*/
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void COM_InitArgv (int argc, char **argv)
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{
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int i;
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char dev_level[4];
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if (argc > MAX_NUM_ARGVS)
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{
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Msg ("COM_InitArgv: too many arguments in cmdline (max %d)\n", MAX_NUM_ARGVS);
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argc = MAX_NUM_ARGVS;
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}
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com_argc = argc;
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for (i = 0; i < argc; i++)
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{
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if (!argv[i] || strlen(argv[i]) >= MAX_TOKEN_CHARS )
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com_argv[i] = "";
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else com_argv[i] = argv[i];
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}
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// determine debug and developer mode
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if (CheckParm ("-debug")) host.debug = true;
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if(GetParmFromCmdLine("-dev", dev_level ))
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host.developer = atoi(dev_level);
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}
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char *CopyString (const char *in)
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{
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char *out;
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out = Z_Malloc (strlen(in)+1);
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strcpy (out, in);
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return out;
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}
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static byte chktbl[1024] = {
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0x84, 0x47, 0x51, 0xc1, 0x93, 0x22, 0x21, 0x24, 0x2f, 0x66, 0x60, 0x4d, 0xb0, 0x7c, 0xda,
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0x88, 0x54, 0x15, 0x2b, 0xc6, 0x6c, 0x89, 0xc5, 0x9d, 0x48, 0xee, 0xe6, 0x8a, 0xb5, 0xf4,
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0xcb, 0xfb, 0xf1, 0x0c, 0x2e, 0xa0, 0xd7, 0xc9, 0x1f, 0xd6, 0x06, 0x9a, 0x09, 0x41, 0x54,
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0x67, 0x46, 0xc7, 0x74, 0xe3, 0xc8, 0xb6, 0x5d, 0xa6, 0x36, 0xc4, 0xab, 0x2c, 0x7e, 0x85,
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0xa8, 0xa4, 0xa6, 0x4d, 0x96, 0x19, 0x19, 0x9a, 0xcc, 0xd8, 0xac, 0x39, 0x5e, 0x3c, 0xf2,
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0xf5, 0x5a, 0x72, 0xe5, 0xa9, 0xd1, 0xb3, 0x23, 0x82, 0x6f, 0x29, 0xcb, 0xd1, 0xcc, 0x71,
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0xfb, 0xea, 0x92, 0xeb, 0x1c, 0xca, 0x4c, 0x70, 0xfe, 0x4d, 0xc9, 0x67, 0x43, 0x47, 0x94,
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0xb9, 0x47, 0xbc, 0x3f, 0x01, 0xab, 0x7b, 0xa6, 0xe2, 0x76, 0xef, 0x5a, 0x7a, 0x29, 0x0b,
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0x51, 0x54, 0x67, 0xd8, 0x1c, 0x14, 0x3e, 0x29, 0xec, 0xe9, 0x2d, 0x48, 0x67, 0xff, 0xed,
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0x54, 0x4f, 0x48, 0xc0, 0xaa, 0x61, 0xf7, 0x78, 0x12, 0x03, 0x7a, 0x9e, 0x8b, 0xcf, 0x83,
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0x7b, 0xae, 0xca, 0x7b, 0xd9, 0xe9, 0x53, 0x2a, 0xeb, 0xd2, 0xd8, 0xcd, 0xa3, 0x10, 0x25,
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0x78, 0x5a, 0xb5, 0x23, 0x06, 0x93, 0xb7, 0x84, 0xd2, 0xbd, 0x96, 0x75, 0xa5, 0x5e, 0xcf,
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0x4e, 0xe9, 0x50, 0xa1, 0xe6, 0x9d, 0xb1, 0xe3, 0x85, 0x66, 0x28, 0x4e, 0x43, 0xdc, 0x6e,
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0xbb, 0x33, 0x9e, 0xf3, 0x0d, 0x00, 0xc1, 0xcf, 0x67, 0x34, 0x06, 0x7c, 0x71, 0xe3, 0x63,
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0xb7, 0xb7, 0xdf, 0x92, 0xc4, 0xc2, 0x25, 0x5c, 0xff, 0xc3, 0x6e, 0xfc, 0xaa, 0x1e, 0x2a,
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0x48, 0x11, 0x1c, 0x36, 0x68, 0x78, 0x86, 0x79, 0x30, 0xc3, 0xd6, 0xde, 0xbc, 0x3a, 0x2a,
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0x6d, 0x1e, 0x46, 0xdd, 0xe0, 0x80, 0x1e, 0x44, 0x3b, 0x6f, 0xaf, 0x31, 0xda, 0xa2, 0xbd,
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0x77, 0x06, 0x56, 0xc0, 0xb7, 0x92, 0x4b, 0x37, 0xc0, 0xfc, 0xc2, 0xd5, 0xfb, 0xa8, 0xda,
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0xf5, 0x57, 0xa8, 0x18, 0xc0, 0xdf, 0xe7, 0xaa, 0x2a, 0xe0, 0x7c, 0x6f, 0x77, 0xb1, 0x26,
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0xba, 0xf9, 0x2e, 0x1d, 0x16, 0xcb, 0xb8, 0xa2, 0x44, 0xd5, 0x2f, 0x1a, 0x79, 0x74, 0x87,
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0x4b, 0x00, 0xc9, 0x4a, 0x3a, 0x65, 0x8f, 0xe6, 0x5d, 0xe5, 0x0a, 0x77, 0xd8, 0x1a, 0x14,
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0x41, 0x75, 0xb1, 0xe2, 0x50, 0x2c, 0x93, 0x38, 0x2b, 0x6d, 0xf3, 0xf6, 0xdb, 0x1f, 0xcd,
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0xff, 0x14, 0x70, 0xe7, 0x16, 0xe8, 0x3d, 0xf0, 0xe3, 0xbc, 0x5e, 0xb6, 0x3f, 0xcc, 0x81,
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0x24, 0x67, 0xf3, 0x97, 0x3b, 0xfe, 0x3a, 0x96, 0x85, 0xdf, 0xe4, 0x6e, 0x3c, 0x85, 0x05,
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0x0e, 0xa3, 0x2b, 0x07, 0xc8, 0xbf, 0xe5, 0x13, 0x82, 0x62, 0x08, 0x61, 0x69, 0x4b, 0x47,
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0x62, 0x73, 0x44, 0x64, 0x8e, 0xe2, 0x91, 0xa6, 0x9a, 0xb7, 0xe9, 0x04, 0xb6, 0x54, 0x0c,
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0xc5, 0xa9, 0x47, 0xa6, 0xc9, 0x08, 0xfe, 0x4e, 0xa6, 0xcc, 0x8a, 0x5b, 0x90, 0x6f, 0x2b,
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0x3f, 0xb6, 0x0a, 0x96, 0xc0, 0x78, 0x58, 0x3c, 0x76, 0x6d, 0x94, 0x1a, 0xe4, 0x4e, 0xb8,
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0x38, 0xbb, 0xf5, 0xeb, 0x29, 0xd8, 0xb0, 0xf3, 0x15, 0x1e, 0x99, 0x96, 0x3c, 0x5d, 0x63,
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0xd5, 0xb1, 0xad, 0x52, 0xb8, 0x55, 0x70, 0x75, 0x3e, 0x1a, 0xd5, 0xda, 0xf6, 0x7a, 0x48,
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0x7d, 0x44, 0x41, 0xf9, 0x11, 0xce, 0xd7, 0xca, 0xa5, 0x3d, 0x7a, 0x79, 0x7e, 0x7d, 0x25,
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0x1b, 0x77, 0xbc, 0xf7, 0xc7, 0x0f, 0x84, 0x95, 0x10, 0x92, 0x67, 0x15, 0x11, 0x5a, 0x5e,
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0x41, 0x66, 0x0f, 0x38, 0x03, 0xb2, 0xf1, 0x5d, 0xf8, 0xab, 0xc0, 0x02, 0x76, 0x84, 0x28,
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0xf4, 0x9d, 0x56, 0x46, 0x60, 0x20, 0xdb, 0x68, 0xa7, 0xbb, 0xee, 0xac, 0x15, 0x01, 0x2f,
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0x20, 0x09, 0xdb, 0xc0, 0x16, 0xa1, 0x89, 0xf9, 0x94, 0x59, 0x00, 0xc1, 0x76, 0xbf, 0xc1,
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0x4d, 0x5d, 0x2d, 0xa9, 0x85, 0x2c, 0xd6, 0xd3, 0x14, 0xcc, 0x02, 0xc3, 0xc2, 0xfa, 0x6b,
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0xb7, 0xa6, 0xef, 0xdd, 0x12, 0x26, 0xa4, 0x63, 0xe3, 0x62, 0xbd, 0x56, 0x8a, 0x52, 0x2b,
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0xb9, 0xdf, 0x09, 0xbc, 0x0e, 0x97, 0xa9, 0xb0, 0x82, 0x46, 0x08, 0xd5, 0x1a, 0x8e, 0x1b,
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0xa7, 0x90, 0x98, 0xb9, 0xbb, 0x3c, 0x17, 0x9a, 0xf2, 0x82, 0xba, 0x64, 0x0a, 0x7f, 0xca,
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0x5a, 0x8c, 0x7c, 0xd3, 0x79, 0x09, 0x5b, 0x26, 0xbb, 0xbd, 0x25, 0xdf, 0x3d, 0x6f, 0x9a,
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0x8f, 0xee, 0x21, 0x66, 0xb0, 0x8d, 0x84, 0x4c, 0x91, 0x45, 0xd4, 0x77, 0x4f, 0xb3, 0x8c,
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0xbc, 0xa8, 0x99, 0xaa, 0x19, 0x53, 0x7c, 0x02, 0x87, 0xbb, 0x0b, 0x7c, 0x1a, 0x2d, 0xdf,
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0x48, 0x44, 0x06, 0xd6, 0x7d, 0x0c, 0x2d, 0x35, 0x76, 0xae, 0xc4, 0x5f, 0x71, 0x85, 0x97,
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0xc4, 0x3d, 0xef, 0x52, 0xbe, 0x00, 0xe4, 0xcd, 0x49, 0xd1, 0xd1, 0x1c, 0x3c, 0xd0, 0x1c,
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0x42, 0xaf, 0xd4, 0xbd, 0x58, 0x34, 0x07, 0x32, 0xee, 0xb9, 0xb5, 0xea, 0xff, 0xd7, 0x8c,
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0x0d, 0x2e, 0x2f, 0xaf, 0x87, 0xbb, 0xe6, 0x52, 0x71, 0x22, 0xf5, 0x25, 0x17, 0xa1, 0x82,
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0x04, 0xc2, 0x4a, 0xbd, 0x57, 0xc6, 0xab, 0xc8, 0x35, 0x0c, 0x3c, 0xd9, 0xc2, 0x43, 0xdb,
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0x27, 0x92, 0xcf, 0xb8, 0x25, 0x60, 0xfa, 0x21, 0x3b, 0x04, 0x52, 0xc8, 0x96, 0xba, 0x74,
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0xe3, 0x67, 0x3e, 0x8e, 0x8d, 0x61, 0x90, 0x92, 0x59, 0xb6, 0x1a, 0x1c, 0x5e, 0x21, 0xc1,
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0x65, 0xe5, 0xa6, 0x34, 0x05, 0x6f, 0xc5, 0x60, 0xb1, 0x83, 0xc1, 0xd5, 0xd5, 0xed, 0xd9,
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0xc7, 0x11, 0x7b, 0x49, 0x7a, 0xf9, 0xf9, 0x84, 0x47, 0x9b, 0xe2, 0xa5, 0x82, 0xe0, 0xc2,
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0x88, 0xd0, 0xb2, 0x58, 0x88, 0x7f, 0x45, 0x09, 0x67, 0x74, 0x61, 0xbf, 0xe6, 0x40, 0xe2,
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0x9d, 0xc2, 0x47, 0x05, 0x89, 0xed, 0xcb, 0xbb, 0xb7, 0x27, 0xe7, 0xdc, 0x7a, 0xfd, 0xbf,
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0xa8, 0xd0, 0xaa, 0x10, 0x39, 0x3c, 0x20, 0xf0, 0xd3, 0x6e, 0xb1, 0x72, 0xf8, 0xe6, 0x0f,
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|
0xef, 0x37, 0xe5, 0x09, 0x33, 0x5a, 0x83, 0x43, 0x80, 0x4f, 0x65, 0x2f, 0x7c, 0x8c, 0x6a,
|
|
0xa0, 0x82, 0x0c, 0xd4, 0xd4, 0xfa, 0x81, 0x60, 0x3d, 0xdf, 0x06, 0xf1, 0x5f, 0x08, 0x0d,
|
|
0x6d, 0x43, 0xf2, 0xe3, 0x11, 0x7d, 0x80, 0x32, 0xc5, 0xfb, 0xc5, 0xd9, 0x27, 0xec, 0xc6,
|
|
0x4e, 0x65, 0x27, 0x76, 0x87, 0xa6, 0xee, 0xee, 0xd7, 0x8b, 0xd1, 0xa0, 0x5c, 0xb0, 0x42,
|
|
0x13, 0x0e, 0x95, 0x4a, 0xf2, 0x06, 0xc6, 0x43, 0x33, 0xf4, 0xc7, 0xf8, 0xe7, 0x1f, 0xdd,
|
|
0xe4, 0x46, 0x4a, 0x70, 0x39, 0x6c, 0xd0, 0xed, 0xca, 0xbe, 0x60, 0x3b, 0xd1, 0x7b, 0x57,
|
|
0x48, 0xe5, 0x3a, 0x79, 0xc1, 0x69, 0x33, 0x53, 0x1b, 0x80, 0xb8, 0x91, 0x7d, 0xb4, 0xf6,
|
|
0x17, 0x1a, 0x1d, 0x5a, 0x32, 0xd6, 0xcc, 0x71, 0x29, 0x3f, 0x28, 0xbb, 0xf3, 0x5e, 0x71,
|
|
0xb8, 0x43, 0xaf, 0xf8, 0xb9, 0x64, 0xef, 0xc4, 0xa5, 0x6c, 0x08, 0x53, 0xc7, 0x00, 0x10,
|
|
0x39, 0x4f, 0xdd, 0xe4, 0xb6, 0x19, 0x27, 0xfb, 0xb8, 0xf5, 0x32, 0x73, 0xe5, 0xcb, 0x32
|
|
};
|
|
|
|
/*
|
|
====================
|
|
COM_BlockSequenceCRCByte
|
|
|
|
For proxy protecting
|
|
====================
|
|
*/
|
|
byte COM_BlockSequenceCRCByte (byte *base, int length, int sequence)
|
|
{
|
|
int n, x;
|
|
word crc;
|
|
byte *p, chkb[60 + 4];
|
|
|
|
if (sequence < 0)
|
|
{
|
|
MsgWarn("COM_BlockSequenceCRCByte: sequence < 0, this shouldn't happen\n");
|
|
sequence = abs(sequence);
|
|
}
|
|
|
|
p = chktbl + (sequence % (sizeof(chktbl) - 4));
|
|
|
|
if (length > 60) length = 60;
|
|
Mem_Copy (chkb, base, length);
|
|
|
|
chkb[length] = p[0];
|
|
chkb[length + 1] = p[1];
|
|
chkb[length + 2] = p[2];
|
|
chkb[length + 3] = p[3];
|
|
length += 4;
|
|
|
|
crc = CRC_Block(chkb, length);
|
|
for (x = 0, n = 0; n < length; n++) x += chkb[n];
|
|
crc = (crc ^ x) & 0xff;
|
|
|
|
return crc;
|
|
}
|
|
|
|
//========================================================
|
|
|
|
float frand(void)
|
|
{
|
|
return (rand()&32767)* (1.0/32767);
|
|
}
|
|
|
|
float crand(void)
|
|
{
|
|
return (rand()&32767)* (2.0/32767) - 1;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
Com_PageInMemory
|
|
|
|
===============
|
|
*/
|
|
int paged_total;
|
|
|
|
void Com_PageInMemory (byte *buffer, int size)
|
|
{
|
|
int i;
|
|
|
|
for (i = size - 1; i > 0; i -= 4096)
|
|
paged_total += buffer[i];
|
|
}
|
|
|
|
#ifndef HAVE_STRLCAT
|
|
size_t strlcat(char *dst, const char *src, size_t siz)
|
|
{
|
|
register char *d = dst;
|
|
register const char *s = src;
|
|
register size_t n = siz;
|
|
size_t dlen;
|
|
|
|
// Find the end of dst and adjust bytes left but don't go past end
|
|
while (n-- != 0 && *d != '\0') d++;
|
|
dlen = d - dst;
|
|
n = siz - dlen;
|
|
|
|
if (n == 0) return(dlen + strlen(s));
|
|
while (*s != '\0')
|
|
{
|
|
if (n != 1)
|
|
{
|
|
*d++ = *s;
|
|
n--;
|
|
}
|
|
s++;
|
|
}
|
|
|
|
*d = '\0';
|
|
return(dlen + (s - src)); //count does not include NUL
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifndef HAVE_STRLCPY
|
|
size_t strlcpy(char *dst, const char *src, size_t siz)
|
|
{
|
|
register char *d = dst;
|
|
register const char *s = src;
|
|
register size_t n = siz;
|
|
|
|
// Copy as many bytes as will fit
|
|
if (n != 0 && --n != 0)
|
|
{
|
|
do
|
|
{
|
|
if ((*d++ = *s++) == 0)
|
|
break;
|
|
} while (--n != 0);
|
|
}
|
|
|
|
// Not enough room in dst, add NUL and traverse rest of src
|
|
if (n == 0)
|
|
{
|
|
if (siz != 0) *d = '\0'; //NUL-terminate dst
|
|
while (*s++);
|
|
}
|
|
return(s - src - 1); //count does not include NUL
|
|
}
|
|
#endif |