/* Copyright (C) 1997-2001 Id Software, Inc. This program 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. This program 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 this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ // common.c -- misc functions used in client and server #include "qcommon.h" #include #define MAXPRINTMSG 4096 #define MAX_NUM_ARGVS 50 int com_argc; char *com_argv[MAX_NUM_ARGVS+1]; int realtime; jmp_buf abortframe; // an ERR_DROP occured, exit the entire frame QFile *log_stats_file; cvar_t *host_speeds; cvar_t *log_stats; cvar_t *developer; cvar_t *timescale; cvar_t *fixedtime; cvar_t *logfile_active; // 1 = buffer log, 2 = flush after each print cvar_t *showtrace; cvar_t *dedicated; QFile *logfile; int server_state; // host_speeds times int time_before_game; int time_after_game; int time_before_ref; int time_after_ref; /* ============================================================================ CLIENT / SERVER interactions ============================================================================ */ static int rd_target; static char *rd_buffer; static int rd_buffersize; static void (*rd_flush)(int target, char *buffer); void Com_BeginRedirect (int target, char *buffer, int buffersize, void (*flush)) { if (!target || !buffer || !buffersize || !flush) return; rd_target = target; rd_buffer = buffer; rd_buffersize = buffersize; rd_flush = flush; *rd_buffer = 0; } void Com_EndRedirect (void) { rd_flush(rd_target, rd_buffer); rd_target = 0; rd_buffer = NULL; rd_buffersize = 0; rd_flush = NULL; } /* ============= Com_Printf Both client and server can use this, and it will output to the apropriate place. ============= */ void Com_Printf (char *fmt, ...) { va_list argptr; char msg[MAXPRINTMSG]; va_start (argptr,fmt); vsnprintf (msg,MAXPRINTMSG,fmt,argptr); va_end (argptr); if (rd_target) { if ((strlen (msg) + strlen(rd_buffer)) > (rd_buffersize - 1)) { rd_flush(rd_target, rd_buffer); *rd_buffer = 0; } strcat (rd_buffer, msg); return; } Con_Print (msg); // also echo to debugging console Sys_ConsoleOutput (msg); // logfile if (logfile_active && logfile_active->value) { char name[MAX_QPATH]; if (!logfile) { Com_sprintf (name, sizeof(name), "%s/qconsole.log", FS_Gamedir ()); if (logfile_active->value > 2) logfile = Qopen (name, "a"); else logfile = Qopen (name, "w"); } if (logfile) Qprintf (logfile, "%s", msg); if (logfile_active->value > 1) Qflush (logfile); // force it to save every time } } /* ================ Com_DPrintf A Com_Printf that only shows up if the "developer" cvar is set ================ */ void Com_DPrintf (char *fmt, ...) { va_list argptr; char msg[MAXPRINTMSG]; if (!developer || !developer->value) return; // don't confuse non-developers with techie stuff... va_start (argptr,fmt); vsnprintf (msg,MAXPRINTMSG,fmt,argptr); va_end (argptr); Com_Printf ("%s", msg); } /* ============= Com_Error Both client and server can use this, and it will do the apropriate things. ============= */ void Com_Error (int code, char *fmt, ...) { va_list argptr; static char msg[MAXPRINTMSG]; static qboolean recursive; if (recursive) Sys_Error ("recursive error after: %s", msg); recursive = true; va_start (argptr,fmt); vsnprintf (msg,MAXPRINTMSG,fmt,argptr); va_end (argptr); if (code == ERR_DISCONNECT) { CL_Drop (); recursive = false; longjmp (abortframe, -1); } else if (code == ERR_DROP) { Com_Printf ("********************\nERROR: %s\n********************\n", msg); SV_Shutdown (va("Server crashed: %s\n", msg), false); CL_Drop (); recursive = false; longjmp (abortframe, -1); } else { SV_Shutdown (va("Server fatal crashed: %s\n", msg), false); CL_Shutdown (); } if (logfile) { Qclose (logfile); logfile = NULL; } Sys_Error ("%s", msg); } /* ============= Com_Quit Both client and server can use this, and it will do the apropriate things. ============= */ void Com_Quit (void) { SV_Shutdown ("Server quit\n", false); CL_Shutdown (); if (logfile) { Qclose (logfile); logfile = NULL; } Sys_Quit (); } /* ================== Com_ServerState ================== */ int Com_ServerState (void) { return server_state; } /* ================== Com_SetServerState ================== */ void Com_SetServerState (int state) { server_state = state; } /* ============================================================================== MESSAGE IO FUNCTIONS Handles byte ordering and avoids alignment errors ============================================================================== */ vec3_t bytedirs[NUMVERTEXNORMALS] = { #include "../client/anorms.h" }; // // writing functions // void MSG_WriteChar (sizebuf_t *sb, int c) { byte *buf; #ifdef PARANOID if (c < -128 || c > 127) Com_Error (ERR_FATAL, "MSG_WriteChar: range error"); #endif buf = SZ_GetSpace (sb, 1); buf[0] = c; } void MSG_WriteByte (sizebuf_t *sb, int c) { byte *buf; #ifdef PARANOID if (c < 0 || c > 255) Com_Error (ERR_FATAL, "MSG_WriteByte: range error"); #endif buf = SZ_GetSpace (sb, 1); buf[0] = c; } void MSG_WriteShort (sizebuf_t *sb, int c) { byte *buf; #ifdef PARANOID if (c < ((short)0x8000) || c > (short)0x7fff) Com_Error (ERR_FATAL, "MSG_WriteShort: range error"); #endif buf = SZ_GetSpace (sb, 2); buf[0] = c&0xff; buf[1] = c>>8; } void MSG_WriteLong (sizebuf_t *sb, int c) { byte *buf; buf = SZ_GetSpace (sb, 4); buf[0] = c&0xff; buf[1] = (c>>8)&0xff; buf[2] = (c>>16)&0xff; buf[3] = c>>24; } void MSG_WriteFloat (sizebuf_t *sb, float f) { union { float f; int l; } dat; dat.f = f; dat.l = LittleLong (dat.l); SZ_Write (sb, &dat.l, 4); } void MSG_WriteString (sizebuf_t *sb, char *s) { if (!s) SZ_Write (sb, "", 1); else SZ_Write (sb, s, strlen(s)+1); } void MSG_WriteCoord (sizebuf_t *sb, float f) { MSG_WriteShort (sb, (int)(f*8)); } void MSG_WritePos (sizebuf_t *sb, vec3_t pos) { MSG_WriteShort (sb, (int)(pos[0]*8)); MSG_WriteShort (sb, (int)(pos[1]*8)); MSG_WriteShort (sb, (int)(pos[2]*8)); } void MSG_WriteAngle (sizebuf_t *sb, float f) { MSG_WriteByte (sb, (int)(f*256/360) & 255); } void MSG_WriteAngle16 (sizebuf_t *sb, float f) { MSG_WriteShort (sb, ANGLE2SHORT(f)); } void MSG_WriteDeltaUsercmd (sizebuf_t *buf, usercmd_t *from, usercmd_t *cmd) { int bits; // // send the movement message // bits = 0; if (cmd->angles[0] != from->angles[0]) bits |= CM_ANGLE1; if (cmd->angles[1] != from->angles[1]) bits |= CM_ANGLE2; if (cmd->angles[2] != from->angles[2]) bits |= CM_ANGLE3; if (cmd->forwardmove != from->forwardmove) bits |= CM_FORWARD; if (cmd->sidemove != from->sidemove) bits |= CM_SIDE; if (cmd->upmove != from->upmove) bits |= CM_UP; if (cmd->buttons != from->buttons) bits |= CM_BUTTONS; if (cmd->impulse != from->impulse) bits |= CM_IMPULSE; MSG_WriteByte (buf, bits); if (bits & CM_ANGLE1) MSG_WriteShort (buf, cmd->angles[0]); if (bits & CM_ANGLE2) MSG_WriteShort (buf, cmd->angles[1]); if (bits & CM_ANGLE3) MSG_WriteShort (buf, cmd->angles[2]); if (bits & CM_FORWARD) MSG_WriteShort (buf, cmd->forwardmove); if (bits & CM_SIDE) MSG_WriteShort (buf, cmd->sidemove); if (bits & CM_UP) MSG_WriteShort (buf, cmd->upmove); if (bits & CM_BUTTONS) MSG_WriteByte (buf, cmd->buttons); if (bits & CM_IMPULSE) MSG_WriteByte (buf, cmd->impulse); MSG_WriteByte (buf, cmd->msec); MSG_WriteByte (buf, cmd->lightlevel); } void MSG_WriteDir (sizebuf_t *sb, vec3_t dir) { int i, best; float d, bestd; if (!dir) { MSG_WriteByte (sb, 0); return; } bestd = 0; best = 0; for (i=0 ; i bestd) { bestd = d; best = i; } } MSG_WriteByte (sb, best); } void MSG_ReadDir (sizebuf_t *sb, vec3_t dir) { int b; b = MSG_ReadByte (sb); if (b >= NUMVERTEXNORMALS) Com_Error (ERR_DROP, "MSF_ReadDir: out of range"); VectorCopy (bytedirs[b], dir); } /* ================== MSG_WriteDeltaEntity Writes part of a packetentities message. Can delta from either a baseline or a previous packet_entity ================== */ void MSG_WriteDeltaEntity (entity_state_t *from, entity_state_t *to, sizebuf_t *msg, qboolean force, qboolean newentity) { int bits; if (!to->number) Com_Error (ERR_FATAL, "Unset entity number"); if (to->number >= MAX_EDICTS) Com_Error (ERR_FATAL, "Entity number >= MAX_EDICTS"); // send an update bits = 0; if (to->number >= 256) bits |= U_NUMBER16; // number8 is implicit otherwise if (to->origin[0] != from->origin[0]) bits |= U_ORIGIN1; if (to->origin[1] != from->origin[1]) bits |= U_ORIGIN2; if (to->origin[2] != from->origin[2]) bits |= U_ORIGIN3; if ( to->angles[0] != from->angles[0] ) bits |= U_ANGLE1; if ( to->angles[1] != from->angles[1] ) bits |= U_ANGLE2; if ( to->angles[2] != from->angles[2] ) bits |= U_ANGLE3; if ( to->skinnum != from->skinnum ) { if ((unsigned)to->skinnum < 256) bits |= U_SKIN8; else if ((unsigned)to->skinnum < 0x10000) bits |= U_SKIN16; else bits |= (U_SKIN8|U_SKIN16); } if ( to->frame != from->frame ) { if (to->frame < 256) bits |= U_FRAME8; else bits |= U_FRAME16; } if ( to->effects != from->effects ) { if (to->effects < 256) bits |= U_EFFECTS8; else if (to->effects < 0x8000) bits |= U_EFFECTS16; else bits |= U_EFFECTS8|U_EFFECTS16; } if ( to->renderfx != from->renderfx ) { if (to->renderfx < 256) bits |= U_RENDERFX8; else if (to->renderfx < 0x8000) bits |= U_RENDERFX16; else bits |= U_RENDERFX8|U_RENDERFX16; } if ( to->solid != from->solid ) bits |= U_SOLID; // event is not delta compressed, just 0 compressed if ( to->event ) bits |= U_EVENT; if ( to->modelindex != from->modelindex ) bits |= U_MODEL; if ( to->modelindex2 != from->modelindex2 ) bits |= U_MODEL2; if ( to->modelindex3 != from->modelindex3 ) bits |= U_MODEL3; if ( to->modelindex4 != from->modelindex4 ) bits |= U_MODEL4; if ( to->sound != from->sound ) bits |= U_SOUND; if (newentity || (to->renderfx & RF_BEAM)) bits |= U_OLDORIGIN; // // write the message // if (!bits && !force) return; // nothing to send! //---------- if (bits & 0xff000000) bits |= U_MOREBITS3 | U_MOREBITS2 | U_MOREBITS1; else if (bits & 0x00ff0000) bits |= U_MOREBITS2 | U_MOREBITS1; else if (bits & 0x0000ff00) bits |= U_MOREBITS1; MSG_WriteByte (msg, bits&255 ); if (bits & 0xff000000) { MSG_WriteByte (msg, (bits>>8)&255 ); MSG_WriteByte (msg, (bits>>16)&255 ); MSG_WriteByte (msg, (bits>>24)&255 ); } else if (bits & 0x00ff0000) { MSG_WriteByte (msg, (bits>>8)&255 ); MSG_WriteByte (msg, (bits>>16)&255 ); } else if (bits & 0x0000ff00) { MSG_WriteByte (msg, (bits>>8)&255 ); } //---------- if (bits & U_NUMBER16) MSG_WriteShort (msg, to->number); else MSG_WriteByte (msg, to->number); if (bits & U_MODEL) MSG_WriteByte (msg, to->modelindex); if (bits & U_MODEL2) MSG_WriteByte (msg, to->modelindex2); if (bits & U_MODEL3) MSG_WriteByte (msg, to->modelindex3); if (bits & U_MODEL4) MSG_WriteByte (msg, to->modelindex4); if (bits & U_FRAME8) MSG_WriteByte (msg, to->frame); if (bits & U_FRAME16) MSG_WriteShort (msg, to->frame); if ((bits & U_SKIN8) && (bits & U_SKIN16)) //used for laser colors MSG_WriteLong (msg, to->skinnum); else if (bits & U_SKIN8) MSG_WriteByte (msg, to->skinnum); else if (bits & U_SKIN16) MSG_WriteShort (msg, to->skinnum); if ( (bits & (U_EFFECTS8|U_EFFECTS16)) == (U_EFFECTS8|U_EFFECTS16) ) MSG_WriteLong (msg, to->effects); else if (bits & U_EFFECTS8) MSG_WriteByte (msg, to->effects); else if (bits & U_EFFECTS16) MSG_WriteShort (msg, to->effects); if ( (bits & (U_RENDERFX8|U_RENDERFX16)) == (U_RENDERFX8|U_RENDERFX16) ) MSG_WriteLong (msg, to->renderfx); else if (bits & U_RENDERFX8) MSG_WriteByte (msg, to->renderfx); else if (bits & U_RENDERFX16) MSG_WriteShort (msg, to->renderfx); if (bits & U_ORIGIN1) MSG_WriteCoord (msg, to->origin[0]); if (bits & U_ORIGIN2) MSG_WriteCoord (msg, to->origin[1]); if (bits & U_ORIGIN3) MSG_WriteCoord (msg, to->origin[2]); if (bits & U_ANGLE1) MSG_WriteAngle(msg, to->angles[0]); if (bits & U_ANGLE2) MSG_WriteAngle(msg, to->angles[1]); if (bits & U_ANGLE3) MSG_WriteAngle(msg, to->angles[2]); if (bits & U_OLDORIGIN) { MSG_WriteCoord (msg, to->old_origin[0]); MSG_WriteCoord (msg, to->old_origin[1]); MSG_WriteCoord (msg, to->old_origin[2]); } if (bits & U_SOUND) MSG_WriteByte (msg, to->sound); if (bits & U_EVENT) MSG_WriteByte (msg, to->event); if (bits & U_SOLID) MSG_WriteShort (msg, to->solid); } //============================================================ // // reading functions // void MSG_BeginReading (sizebuf_t *msg) { msg->readcount = 0; } // returns -1 if no more characters are available int MSG_ReadChar (sizebuf_t *msg_read) { int c; if (msg_read->readcount+1 > msg_read->cursize) c = -1; else c = (signed char)msg_read->data[msg_read->readcount]; msg_read->readcount++; return c; } int MSG_ReadByte (sizebuf_t *msg_read) { int c; if (msg_read->readcount+1 > msg_read->cursize) c = -1; else c = (unsigned char)msg_read->data[msg_read->readcount]; msg_read->readcount++; return c; } int MSG_ReadShort (sizebuf_t *msg_read) { int c; if (msg_read->readcount+2 > msg_read->cursize) c = -1; else c = (short)(msg_read->data[msg_read->readcount] + (msg_read->data[msg_read->readcount+1]<<8)); msg_read->readcount += 2; return c; } int MSG_ReadLong (sizebuf_t *msg_read) { int c; if (msg_read->readcount+4 > msg_read->cursize) c = -1; else c = msg_read->data[msg_read->readcount] + (msg_read->data[msg_read->readcount+1]<<8) + (msg_read->data[msg_read->readcount+2]<<16) + (msg_read->data[msg_read->readcount+3]<<24); msg_read->readcount += 4; return c; } float MSG_ReadFloat (sizebuf_t *msg_read) { union { byte b[4]; float f; int l; } dat; if (msg_read->readcount+4 > msg_read->cursize) dat.f = -1; else { dat.b[0] = msg_read->data[msg_read->readcount]; dat.b[1] = msg_read->data[msg_read->readcount+1]; dat.b[2] = msg_read->data[msg_read->readcount+2]; dat.b[3] = msg_read->data[msg_read->readcount+3]; } msg_read->readcount += 4; dat.l = LittleLong (dat.l); return dat.f; } char *MSG_ReadString (sizebuf_t *msg_read) { static char string[2048]; int l,c; l = 0; do { c = MSG_ReadChar (msg_read); if (c == -1 || c == 0) break; string[l] = c; l++; } while (l < sizeof(string)-1); string[l] = 0; return string; } char *MSG_ReadStringLine (sizebuf_t *msg_read) { static char string[2048]; int l,c; l = 0; do { c = MSG_ReadChar (msg_read); if (c == -1 || c == 0 || c == '\n') break; string[l] = c; l++; } while (l < sizeof(string)-1); string[l] = 0; return string; } float MSG_ReadCoord (sizebuf_t *msg_read) { return MSG_ReadShort(msg_read) * (1.0/8); } void MSG_ReadPos (sizebuf_t *msg_read, vec3_t pos) { pos[0] = MSG_ReadShort(msg_read) * (1.0/8); pos[1] = MSG_ReadShort(msg_read) * (1.0/8); pos[2] = MSG_ReadShort(msg_read) * (1.0/8); } float MSG_ReadAngle (sizebuf_t *msg_read) { return MSG_ReadChar(msg_read) * (360.0/256); } float MSG_ReadAngle16 (sizebuf_t *msg_read) { return SHORT2ANGLE(MSG_ReadShort(msg_read)); } void MSG_ReadDeltaUsercmd (sizebuf_t *msg_read, usercmd_t *from, usercmd_t *move) { int bits; memcpy (move, from, sizeof(*move)); bits = MSG_ReadByte (msg_read); // read current angles if (bits & CM_ANGLE1) move->angles[0] = MSG_ReadShort (msg_read); if (bits & CM_ANGLE2) move->angles[1] = MSG_ReadShort (msg_read); if (bits & CM_ANGLE3) move->angles[2] = MSG_ReadShort (msg_read); // read movement if (bits & CM_FORWARD) move->forwardmove = MSG_ReadShort (msg_read); if (bits & CM_SIDE) move->sidemove = MSG_ReadShort (msg_read); if (bits & CM_UP) move->upmove = MSG_ReadShort (msg_read); // read buttons if (bits & CM_BUTTONS) move->buttons = MSG_ReadByte (msg_read); if (bits & CM_IMPULSE) move->impulse = MSG_ReadByte (msg_read); // read time to run command move->msec = MSG_ReadByte (msg_read); // read the light level move->lightlevel = MSG_ReadByte (msg_read); } void MSG_ReadData (sizebuf_t *msg_read, void *data, int len) { int i; for (i=0 ; idata = data; buf->maxsize = length; } void SZ_Clear (sizebuf_t *buf) { buf->cursize = 0; buf->overflowed = false; } void *SZ_GetSpace (sizebuf_t *buf, int length) { void *data; if (buf->cursize + length > buf->maxsize) { if (!buf->allowoverflow) Com_Error (ERR_FATAL, "SZ_GetSpace: overflow without allowoverflow set"); if (length > buf->maxsize) Com_Error (ERR_FATAL, "SZ_GetSpace: %i is > full buffer size", length); Com_Printf ("SZ_GetSpace: overflow\n"); SZ_Clear (buf); buf->overflowed = true; } data = buf->data + buf->cursize; buf->cursize += length; return data; } void SZ_Write (sizebuf_t *buf, void *data, int length) { memcpy (SZ_GetSpace(buf,length),data,length); } void SZ_Print (sizebuf_t *buf, char *data) { int len; len = strlen(data)+1; if (buf->cursize) { if (buf->data[buf->cursize-1]) memcpy ((byte *)SZ_GetSpace(buf, len),data,len); // no trailing 0 else memcpy ((byte *)SZ_GetSpace(buf, len-1)-1,data,len); // write over trailing 0 } else memcpy ((byte *)SZ_GetSpace(buf, len),data,len); } //============================================================================ /* ================ COM_CheckParm Returns the position (1 to argc-1) in the program's argument list where the given parameter apears, or 0 if not present ================ */ int COM_CheckParm (char *parm) { int i; for (i=1 ; i= com_argc || !com_argv[arg]) return ""; return com_argv[arg]; } void COM_ClearArgv (int arg) { if (arg < 0 || arg >= com_argc || !com_argv[arg]) return; com_argv[arg] = ""; } /* ================ COM_InitArgv ================ */ void COM_InitArgv (int argc, char **argv) { int i; if (argc > MAX_NUM_ARGVS) Com_Error (ERR_FATAL, "argc > MAX_NUM_ARGVS"); com_argc = argc; for (i=0 ; i= MAX_TOKEN_CHARS ) com_argv[i] = ""; else com_argv[i] = argv[i]; } } /* ================ COM_AddParm Adds the given string at the end of the current argument list ================ */ void COM_AddParm (char *parm) { if (com_argc == MAX_NUM_ARGVS) Com_Error (ERR_FATAL, "COM_AddParm: MAX_NUM)ARGS"); com_argv[com_argc++] = parm; } /// just for debugging int memsearch (byte *start, int count, int search) { int i; for (i=0 ; imagic != Z_MAGIC) Com_Error (ERR_FATAL, "Z_Free: bad magic"); z->prev->next = z->next; z->next->prev = z->prev; z_count--; z_bytes -= z->size; free (z); } /* ======================== Z_Stats_f ======================== */ void Z_Stats_f (void) { Com_Printf ("%i bytes in %i blocks\n", z_bytes, z_count); } /* ======================== Z_FreeTags ======================== */ void Z_FreeTags (int tag) { zhead_t *z, *next; for (z=z_chain.next ; z != &z_chain ; z=next) { next = z->next; if (z->tag == tag) Z_Free ((void *)(z+1)); } } /* ======================== Z_TagMalloc ======================== */ void *Z_TagMalloc (int size, int tag) { zhead_t *z; size = size + sizeof(zhead_t); z = malloc(size); if (!z) Com_Error (ERR_FATAL, "Z_Malloc: failed on allocation of %i bytes",size); memset (z, 0, size); z_count++; z_bytes += size; z->magic = Z_MAGIC; z->tag = tag; z->size = size; z->next = z_chain.next; z->prev = &z_chain; z_chain.next->prev = z; z_chain.next = z; return (void *)(z+1); } /* ======================== Z_Malloc ======================== */ void *Z_Malloc (int size) { return Z_TagMalloc (size, 0); } //============================================================================ /* ==================== COM_BlockSequenceCheckByte For proxy protecting // THIS IS MASSIVELY BROKEN! CHALLENGE MAY BE NEGATIVE // DON'T USE THIS FUNCTION!!!!! ==================== */ byte COM_BlockSequenceCheckByte (byte *base, int length, int sequence, int challenge) { Sys_Error("COM_BlockSequenceCheckByte called\n"); #if 0 int checksum; byte buf[68]; byte *p; float temp; byte c; temp = bytedirs[(sequence/3) % NUMVERTEXNORMALS][sequence % 3]; temp = LittleFloat(temp); p = ((byte *)&temp); if (length > 60) length = 60; memcpy (buf, base, length); buf[length] = (sequence & 0xff) ^ p[0]; buf[length+1] = p[1]; buf[length+2] = ((sequence>>8) & 0xff) ^ p[2]; buf[length+3] = p[3]; temp = bytedirs[((sequence+challenge)/3) % NUMVERTEXNORMALS][(sequence+challenge) % 3]; temp = LittleFloat(temp); p = ((byte *)&temp); buf[length+4] = (sequence & 0xff) ^ p[3]; buf[length+5] = (challenge & 0xff) ^ p[2]; buf[length+6] = ((sequence>>8) & 0xff) ^ p[1]; buf[length+7] = ((challenge >> 7) & 0xff) ^ p[0]; length += 8; checksum = LittleLong(Com_BlockChecksum (buf, length)); checksum &= 0xff; return checksum; #endif return 0; } static byte chktbl[1024] = { 0x84, 0x47, 0x51, 0xc1, 0x93, 0x22, 0x21, 0x24, 0x2f, 0x66, 0x60, 0x4d, 0xb0, 0x7c, 0xda, 0x88, 0x54, 0x15, 0x2b, 0xc6, 0x6c, 0x89, 0xc5, 0x9d, 0x48, 0xee, 0xe6, 0x8a, 0xb5, 0xf4, 0xcb, 0xfb, 0xf1, 0x0c, 0x2e, 0xa0, 0xd7, 0xc9, 0x1f, 0xd6, 0x06, 0x9a, 0x09, 0x41, 0x54, 0x67, 0x46, 0xc7, 0x74, 0xe3, 0xc8, 0xb6, 0x5d, 0xa6, 0x36, 0xc4, 0xab, 0x2c, 0x7e, 0x85, 0xa8, 0xa4, 0xa6, 0x4d, 0x96, 0x19, 0x19, 0x9a, 0xcc, 0xd8, 0xac, 0x39, 0x5e, 0x3c, 0xf2, 0xf5, 0x5a, 0x72, 0xe5, 0xa9, 0xd1, 0xb3, 0x23, 0x82, 0x6f, 0x29, 0xcb, 0xd1, 0xcc, 0x71, 0xfb, 0xea, 0x92, 0xeb, 0x1c, 0xca, 0x4c, 0x70, 0xfe, 0x4d, 0xc9, 0x67, 0x43, 0x47, 0x94, 0xb9, 0x47, 0xbc, 0x3f, 0x01, 0xab, 0x7b, 0xa6, 0xe2, 0x76, 0xef, 0x5a, 0x7a, 0x29, 0x0b, 0x51, 0x54, 0x67, 0xd8, 0x1c, 0x14, 0x3e, 0x29, 0xec, 0xe9, 0x2d, 0x48, 0x67, 0xff, 0xed, 0x54, 0x4f, 0x48, 0xc0, 0xaa, 0x61, 0xf7, 0x78, 0x12, 0x03, 0x7a, 0x9e, 0x8b, 0xcf, 0x83, 0x7b, 0xae, 0xca, 0x7b, 0xd9, 0xe9, 0x53, 0x2a, 0xeb, 0xd2, 0xd8, 0xcd, 0xa3, 0x10, 0x25, 0x78, 0x5a, 0xb5, 0x23, 0x06, 0x93, 0xb7, 0x84, 0xd2, 0xbd, 0x96, 0x75, 0xa5, 0x5e, 0xcf, 0x4e, 0xe9, 0x50, 0xa1, 0xe6, 0x9d, 0xb1, 0xe3, 0x85, 0x66, 0x28, 0x4e, 0x43, 0xdc, 0x6e, 0xbb, 0x33, 0x9e, 0xf3, 0x0d, 0x00, 0xc1, 0xcf, 0x67, 0x34, 0x06, 0x7c, 0x71, 0xe3, 0x63, 0xb7, 0xb7, 0xdf, 0x92, 0xc4, 0xc2, 0x25, 0x5c, 0xff, 0xc3, 0x6e, 0xfc, 0xaa, 0x1e, 0x2a, 0x48, 0x11, 0x1c, 0x36, 0x68, 0x78, 0x86, 0x79, 0x30, 0xc3, 0xd6, 0xde, 0xbc, 0x3a, 0x2a, 0x6d, 0x1e, 0x46, 0xdd, 0xe0, 0x80, 0x1e, 0x44, 0x3b, 0x6f, 0xaf, 0x31, 0xda, 0xa2, 0xbd, 0x77, 0x06, 0x56, 0xc0, 0xb7, 0x92, 0x4b, 0x37, 0xc0, 0xfc, 0xc2, 0xd5, 0xfb, 0xa8, 0xda, 0xf5, 0x57, 0xa8, 0x18, 0xc0, 0xdf, 0xe7, 0xaa, 0x2a, 0xe0, 0x7c, 0x6f, 0x77, 0xb1, 0x26, 0xba, 0xf9, 0x2e, 0x1d, 0x16, 0xcb, 0xb8, 0xa2, 0x44, 0xd5, 0x2f, 0x1a, 0x79, 0x74, 0x87, 0x4b, 0x00, 0xc9, 0x4a, 0x3a, 0x65, 0x8f, 0xe6, 0x5d, 0xe5, 0x0a, 0x77, 0xd8, 0x1a, 0x14, 0x41, 0x75, 0xb1, 0xe2, 0x50, 0x2c, 0x93, 0x38, 0x2b, 0x6d, 0xf3, 0xf6, 0xdb, 0x1f, 0xcd, 0xff, 0x14, 0x70, 0xe7, 0x16, 0xe8, 0x3d, 0xf0, 0xe3, 0xbc, 0x5e, 0xb6, 0x3f, 0xcc, 0x81, 0x24, 0x67, 0xf3, 0x97, 0x3b, 0xfe, 0x3a, 0x96, 0x85, 0xdf, 0xe4, 0x6e, 0x3c, 0x85, 0x05, 0x0e, 0xa3, 0x2b, 0x07, 0xc8, 0xbf, 0xe5, 0x13, 0x82, 0x62, 0x08, 0x61, 0x69, 0x4b, 0x47, 0x62, 0x73, 0x44, 0x64, 0x8e, 0xe2, 0x91, 0xa6, 0x9a, 0xb7, 0xe9, 0x04, 0xb6, 0x54, 0x0c, 0xc5, 0xa9, 0x47, 0xa6, 0xc9, 0x08, 0xfe, 0x4e, 0xa6, 0xcc, 0x8a, 0x5b, 0x90, 0x6f, 0x2b, 0x3f, 0xb6, 0x0a, 0x96, 0xc0, 0x78, 0x58, 0x3c, 0x76, 0x6d, 0x94, 0x1a, 0xe4, 0x4e, 0xb8, 0x38, 0xbb, 0xf5, 0xeb, 0x29, 0xd8, 0xb0, 0xf3, 0x15, 0x1e, 0x99, 0x96, 0x3c, 0x5d, 0x63, 0xd5, 0xb1, 0xad, 0x52, 0xb8, 0x55, 0x70, 0x75, 0x3e, 0x1a, 0xd5, 0xda, 0xf6, 0x7a, 0x48, 0x7d, 0x44, 0x41, 0xf9, 0x11, 0xce, 0xd7, 0xca, 0xa5, 0x3d, 0x7a, 0x79, 0x7e, 0x7d, 0x25, 0x1b, 0x77, 0xbc, 0xf7, 0xc7, 0x0f, 0x84, 0x95, 0x10, 0x92, 0x67, 0x15, 0x11, 0x5a, 0x5e, 0x41, 0x66, 0x0f, 0x38, 0x03, 0xb2, 0xf1, 0x5d, 0xf8, 0xab, 0xc0, 0x02, 0x76, 0x84, 0x28, 0xf4, 0x9d, 0x56, 0x46, 0x60, 0x20, 0xdb, 0x68, 0xa7, 0xbb, 0xee, 0xac, 0x15, 0x01, 0x2f, 0x20, 0x09, 0xdb, 0xc0, 0x16, 0xa1, 0x89, 0xf9, 0x94, 0x59, 0x00, 0xc1, 0x76, 0xbf, 0xc1, 0x4d, 0x5d, 0x2d, 0xa9, 0x85, 0x2c, 0xd6, 0xd3, 0x14, 0xcc, 0x02, 0xc3, 0xc2, 0xfa, 0x6b, 0xb7, 0xa6, 0xef, 0xdd, 0x12, 0x26, 0xa4, 0x63, 0xe3, 0x62, 0xbd, 0x56, 0x8a, 0x52, 0x2b, 0xb9, 0xdf, 0x09, 0xbc, 0x0e, 0x97, 0xa9, 0xb0, 0x82, 0x46, 0x08, 0xd5, 0x1a, 0x8e, 0x1b, 0xa7, 0x90, 0x98, 0xb9, 0xbb, 0x3c, 0x17, 0x9a, 0xf2, 0x82, 0xba, 0x64, 0x0a, 0x7f, 0xca, 0x5a, 0x8c, 0x7c, 0xd3, 0x79, 0x09, 0x5b, 0x26, 0xbb, 0xbd, 0x25, 0xdf, 0x3d, 0x6f, 0x9a, 0x8f, 0xee, 0x21, 0x66, 0xb0, 0x8d, 0x84, 0x4c, 0x91, 0x45, 0xd4, 0x77, 0x4f, 0xb3, 0x8c, 0xbc, 0xa8, 0x99, 0xaa, 0x19, 0x53, 0x7c, 0x02, 0x87, 0xbb, 0x0b, 0x7c, 0x1a, 0x2d, 0xdf, 0x48, 0x44, 0x06, 0xd6, 0x7d, 0x0c, 0x2d, 0x35, 0x76, 0xae, 0xc4, 0x5f, 0x71, 0x85, 0x97, 0xc4, 0x3d, 0xef, 0x52, 0xbe, 0x00, 0xe4, 0xcd, 0x49, 0xd1, 0xd1, 0x1c, 0x3c, 0xd0, 0x1c, 0x42, 0xaf, 0xd4, 0xbd, 0x58, 0x34, 0x07, 0x32, 0xee, 0xb9, 0xb5, 0xea, 0xff, 0xd7, 0x8c, 0x0d, 0x2e, 0x2f, 0xaf, 0x87, 0xbb, 0xe6, 0x52, 0x71, 0x22, 0xf5, 0x25, 0x17, 0xa1, 0x82, 0x04, 0xc2, 0x4a, 0xbd, 0x57, 0xc6, 0xab, 0xc8, 0x35, 0x0c, 0x3c, 0xd9, 0xc2, 0x43, 0xdb, 0x27, 0x92, 0xcf, 0xb8, 0x25, 0x60, 0xfa, 0x21, 0x3b, 0x04, 0x52, 0xc8, 0x96, 0xba, 0x74, 0xe3, 0x67, 0x3e, 0x8e, 0x8d, 0x61, 0x90, 0x92, 0x59, 0xb6, 0x1a, 0x1c, 0x5e, 0x21, 0xc1, 0x65, 0xe5, 0xa6, 0x34, 0x05, 0x6f, 0xc5, 0x60, 0xb1, 0x83, 0xc1, 0xd5, 0xd5, 0xed, 0xd9, 0xc7, 0x11, 0x7b, 0x49, 0x7a, 0xf9, 0xf9, 0x84, 0x47, 0x9b, 0xe2, 0xa5, 0x82, 0xe0, 0xc2, 0x88, 0xd0, 0xb2, 0x58, 0x88, 0x7f, 0x45, 0x09, 0x67, 0x74, 0x61, 0xbf, 0xe6, 0x40, 0xe2, 0x9d, 0xc2, 0x47, 0x05, 0x89, 0xed, 0xcb, 0xbb, 0xb7, 0x27, 0xe7, 0xdc, 0x7a, 0xfd, 0xbf, 0xa8, 0xd0, 0xaa, 0x10, 0x39, 0x3c, 0x20, 0xf0, 0xd3, 0x6e, 0xb1, 0x72, 0xf8, 0xe6, 0x0f, 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; byte *p; int x; byte chkb[60 + 4]; unsigned short crc; if (sequence < 0) Sys_Error("sequence < 0, this shouldn't happen\n"); p = chktbl + (sequence % (sizeof(chktbl) - 4)); if (length > 60) length = 60; memcpy (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; nvalue) Cmd_AddCommand ("quit", Com_Quit); Sys_Init (); NET_Init (); Netchan_Init (); SV_Init (); CL_Init (); // add + commands from command line if (!Cbuf_AddLateCommands ()) { // if the user didn't give any commands, run default action if (!dedicated->value) Cbuf_AddText ("d1\n"); else Cbuf_AddText ("dedicated_start\n"); Cbuf_Execute (); } else { // the user asked for something explicit // so drop the loading plaque SCR_EndLoadingPlaque (); } Com_Printf ("====== Quake2 Initialized ======\n\n"); } /* ================= Qcommon_Frame ================= */ void Qcommon_Frame (volatile int msec) { char *s; volatile int time_before = 0, time_between = 0, time_after = 0; if (setjmp (abortframe) ) return; // an ERR_DROP was thrown if ( log_stats->modified ) { log_stats->modified = false; if ( log_stats->value ) { if ( log_stats_file ) { Qclose( log_stats_file ); log_stats_file = 0; } log_stats_file = Qopen( "stats.log", "w" ); if ( log_stats_file ) Qprintf( log_stats_file, "entities,dlights,parts,frame time\n" ); } else { if ( log_stats_file ) { Qclose( log_stats_file ); log_stats_file = 0; } } } if (fixedtime->value) msec = fixedtime->value; else if (timescale->value) { msec *= timescale->value; if (msec < 1) msec = 1; } if (showtrace->value) { extern int c_traces, c_brush_traces; extern int c_pointcontents; Com_Printf ("%4i traces %4i points\n", c_traces, c_pointcontents); c_traces = 0; c_brush_traces = 0; c_pointcontents = 0; } do { s = Sys_ConsoleInput (); if (s) Cbuf_AddText (va("%s\n",s)); } while (s); Cbuf_Execute (); if (host_speeds->value) time_before = Sys_Milliseconds (); SV_Frame (msec); if (host_speeds->value) time_between = Sys_Milliseconds (); CL_Frame (msec); if (host_speeds->value) time_after = Sys_Milliseconds (); if (host_speeds->value) { int all, sv, gm, cl, rf; all = time_after - time_before; sv = time_between - time_before; cl = time_after - time_between; gm = time_after_game - time_before_game; rf = time_after_ref - time_before_ref; sv -= gm; cl -= rf; Com_Printf ("all:%3i sv:%3i gm:%3i cl:%3i rf:%3i\n", all, sv, gm, cl, rf); } } /* ================= Qcommon_Shutdown ================= */ void Qcommon_Shutdown (void) { }