541 lines
14 KiB
C
541 lines
14 KiB
C
#include <unistd.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <ctype.h>
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#include <sys/wait.h>
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#include <sys/mman.h>
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#include <errno.h>
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#include <time.h>
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#include "quakedef.h"
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qboolean isDedicated;
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int nostdout = 0;
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// user preference directory
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#if defined (USERPREF_DIR)
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char *prefdir= ".quake";
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#endif
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#if defined (BASEDIR)
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/* - DC - won't work without this */
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#define macro_string(x) _macro_string(x)
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#define _macro_string(x) #x
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char *basedir = macro_string(BASEDIR);
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#undef macro_string
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#undef _macro_string
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#else
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char *basedir = ".";
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#endif
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// caching is disabled
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char *cachedir = "/tmp";
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cvar_t sys_linerefresh = { "sys_linerefresh", "0" }; // set for entity display
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// =======================================================================
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// General routines
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// =======================================================================
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void Sys_DebugNumber (int y, int val)
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{
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}
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/*
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void Sys_Printf (char *fmt, ...)
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{
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va_list argptr;
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char text[1024];
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va_start (argptr,fmt);
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vsprintf (text,fmt,argptr);
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va_end (argptr);
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fprintf(stderr, "%s", text);
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Con_Print (text);
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}
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void Sys_Printf (char *fmt, ...)
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{
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va_list argptr;
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char text[1024], *t_p;
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int l, r;
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if (nostdout)
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return;
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va_start (argptr,fmt);
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vsprintf (text,fmt,argptr);
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va_end (argptr);
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l = strlen(text);
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t_p = text;
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// make sure everything goes through, even though we are non-blocking
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while (l)
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{
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r = write (1, text, l);
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if (r != l)
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sleep (0);
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if (r > 0)
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{
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t_p += r;
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l -= r;
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}
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}
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}
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*/
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void Sys_Printf (char *fmt, ...)
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{
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va_list argptr;
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char text[4096];
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unsigned char *p;
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va_start (argptr, fmt);
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vsprintf (text, fmt, argptr);
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va_end (argptr);
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if (strlen (text) > sizeof (text))
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Sys_Error ("memory overwrite in Sys_Printf");
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if (nostdout)
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return;
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for (p = (unsigned char *) text; *p; p++)
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{
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*p &= 0x7f;
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if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9)
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printf ("[%02x]", *p);
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else
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putc (*p, stdout);
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}
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}
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#if 0
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static char end1[] =
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"\x1b[?7h\x1b[40m\x1b[2J\x1b[0;1;41m\x1b[1;1H QUAKE: The Doomed Dimension \x1b[33mby \x1b[44mid\x1b[41m Software \x1b[2;1H ---------------------------------------------------------------------------- \x1b[3;1H CALL 1-800-IDGAMES TO ORDER OR FOR TECHNICAL SUPPORT \x1b[4;1H PRICE: $45.00 (PRICES MAY VARY OUTSIDE THE US.) \x1b[5;1H \x1b[6;1H \x1b[37mYes! You only have one fourth of this incredible epic. That is because most \x1b[7;1H of you have paid us nothing or at most, very little. You could steal the \x1b[8;1H game from a friend. But we both know you'll be punished by God if you do. \x1b[9;1H \x1b[33mWHY RISK ETERNAL DAMNATION? CALL 1-800-IDGAMES AND BUY NOW! \x1b[10;1H \x1b[37mRemember, we love you almost as much as He does. \x1b[11;1H \x1b[12;1H \x1b[33mProgramming: \x1b[37mJohn Carmack, Michael Abrash, John Cash \x1b[13;1H \x1b[33mDesign: \x1b[37mJohn Romero, Sandy Petersen, American McGee, Tim Willits \x1b[14;1H \x1b[33mArt: \x1b[37mAdrian Carmack, Kevin Cloud \x1b[15;1H \x1b[33mBiz: \x1b[37mJay Wilbur, Mike Wilson, Donna Jackson \x1b[16;1H \x1b[33mProjects: \x1b[37mShawn Green \x1b[33mSupport: \x1b[37mBarrett Alexander \x1b[17;1H \x1b[33mSound Effects: \x1b[37mTrent Reznor and Nine Inch Nails \x1b[18;1H For other information or details on ordering outside the US, check out the \x1b[19;1H files accompanying QUAKE or our website at http://www.idsoftware.com. \x1b[20;1H \x1b[0;41mQuake is a trademark of Id Software, inc., (c)1996 Id Software, inc. \x1b[21;1H All rights reserved. NIN logo is a registered trademark licensed to \x1b[22;1H Nothing Interactive, Inc. All rights reserved. \x1b[40m\x1b[23;1H\x1b[0m";
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static char end2[] =
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"\x1b[?7h\x1b[40m\x1b[2J\x1b[0;1;41m\x1b[1;1H QUAKE \x1b[33mby \x1b[44mid\x1b[41m Software \x1b[2;1H ----------------------------------------------------------------------------- \x1b[3;1H \x1b[37mWhy did you quit from the registered version of QUAKE? Did the \x1b[4;1H scary monsters frighten you? Or did Mr. Sandman tug at your \x1b[5;1H little lids? No matter! What is important is you love our \x1b[6;1H game, and gave us your money. Congratulations, you are probably \x1b[7;1H not a thief. \x1b[8;1H Thank You. \x1b[9;1H \x1b[33;44mid\x1b[41m Software is: \x1b[10;1H PROGRAMMING: \x1b[37mJohn Carmack, Michael Abrash, John Cash \x1b[11;1H \x1b[33mDESIGN: \x1b[37mJohn Romero, Sandy Petersen, American McGee, Tim Willits \x1b[12;1H \x1b[33mART: \x1b[37mAdrian Carmack, Kevin Cloud \x1b[13;1H \x1b[33mBIZ: \x1b[37mJay Wilbur, Mike Wilson \x1b[33mPROJECTS MAN: \x1b[37mShawn Green \x1b[14;1H \x1b[33mBIZ ASSIST: \x1b[37mDonna Jackson \x1b[33mSUPPORT: \x1b[37mBarrett Alexander \x1b[15;1H \x1b[33mSOUND EFFECTS AND MUSIC: \x1b[37mTrent Reznor and Nine Inch Nails \x1b[16;1H \x1b[17;1H If you need help running QUAKE refer to the text files in the \x1b[18;1H QUAKE directory, or our website at http://www.idsoftware.com. \x1b[19;1H If all else fails, call our technical support at 1-800-IDGAMES. \x1b[20;1H \x1b[0;41mQuake is a trademark of Id Software, inc., (c)1996 Id Software, inc. \x1b[21;1H All rights reserved. NIN logo is a registered trademark licensed \x1b[22;1H to Nothing Interactive, Inc. All rights reserved. \x1b[23;1H\x1b[40m\x1b[0m";
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#endif
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void Sys_Quit (void)
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{
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Host_Shutdown ();
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fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
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#if 0
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if (registered.value)
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printf ("%s", end2);
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else
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printf ("%s", end1);
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#endif
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fflush (stdout);
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exit (0);
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}
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void Sys_Init (void)
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{
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#if id386
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Sys_SetFPCW ();
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#endif
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}
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void Sys_Error (char *error, ...)
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{
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va_list argptr;
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char string[4096];
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// change stdin to non blocking
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fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY);
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va_start (argptr, error);
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vsprintf (string, error, argptr);
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va_end (argptr);
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fprintf (stderr, "Error: %s\n", string);
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Host_Shutdown ();
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exit (1);
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}
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void Sys_Warn (char *warning, ...)
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{
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va_list argptr;
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char string[4096];
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va_start (argptr, warning);
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vsprintf (string, warning, argptr);
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va_end (argptr);
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fprintf (stderr, "Warning: %s", string);
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}
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/*
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============
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Sys_FileTime
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returns -1 if not present
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============
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*/
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int Sys_FileTime (char *path)
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{
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struct stat buf;
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if (stat (path, &buf) == -1)
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return -1;
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return buf.st_mtime;
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}
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void Sys_mkdir (char *path)
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{
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mkdir (path, 0777);
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}
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void Sys_Strtime(char *buf)
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{
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struct tm *tm_;
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static time_t t_;
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time(&t_);
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tm_=gmtime(&t_);
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sprintf(buf,"%02d:%02d:%02d",tm_->tm_hour,tm_->tm_min,tm_->tm_sec);
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}
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int Sys_FileOpenRead (char *path, int *handle)
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{
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int h;
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struct stat fileinfo;
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h = open (path, O_RDONLY, 0666);
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*handle = h;
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if (h == -1)
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return -1;
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if (fstat (h, &fileinfo) == -1)
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Sys_Error ("Error fstating %s", path);
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return fileinfo.st_size;
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}
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int Sys_FileOpenWrite (char *path)
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{
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int handle;
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umask (0);
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handle = open (path, O_RDWR | O_CREAT | O_TRUNC, 0666);
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if (handle == -1)
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Sys_Error ("Error opening %s: %s", path, strerror (errno));
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return handle;
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}
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int Sys_FileWrite (int handle, void *src, int count)
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{
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return write (handle, src, count);
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}
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void Sys_FileClose (int handle)
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{
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close (handle);
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}
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void Sys_FileSeek (int handle, int position)
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{
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lseek (handle, position, SEEK_SET);
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}
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int Sys_FileRead (int handle, void *dest, int count)
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{
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return read (handle, dest, count);
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}
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void Sys_DebugLog (char *file, char *fmt, ...)
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{
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va_list argptr;
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static char data[4096];
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int fd;
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va_start (argptr, fmt);
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vsprintf (data, fmt, argptr);
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va_end (argptr);
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// fd = open(file, O_WRONLY | O_BINARY | O_CREAT | O_APPEND, 0666);
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fd = open (file, O_WRONLY | O_CREAT | O_APPEND, 0666);
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write (fd, data, strlen (data));
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close (fd);
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}
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void Sys_EditFile (char *filename)
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{
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char cmd[256];
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char *term;
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char *editor;
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term = getenv ("TERM");
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if (term && !strcmp (term, "xterm"))
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{
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editor = getenv ("VISUAL");
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if (!editor)
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editor = getenv ("EDITOR");
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if (!editor)
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editor = getenv ("EDIT");
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if (!editor)
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editor = "vi";
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sprintf (cmd, "xterm -e %s %s", editor, filename);
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system (cmd);
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}
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}
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double Sys_FloatTime (void)
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{
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struct timeval tp;
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struct timezone tzp;
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static int secbase;
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gettimeofday (&tp, &tzp);
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if (!secbase)
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{
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secbase = tp.tv_sec;
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return tp.tv_usec / 1000000.0;
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}
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return (tp.tv_sec - secbase) + tp.tv_usec / 1000000.0;
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}
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// =======================================================================
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// Sleeps for microseconds
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// =======================================================================
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static volatile int oktogo;
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void alarm_handler (int x)
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{
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oktogo = 1;
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}
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void Sys_LineRefresh (void)
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{
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}
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void floating_point_exception_handler (int whatever)
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{
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// Sys_Warn("floating point exception\n");
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signal (SIGFPE, floating_point_exception_handler);
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}
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char *Sys_ConsoleInput (void)
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{
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static char text[256];
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int len;
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fd_set fdset;
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struct timeval timeout;
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if (cls.state == ca_dedicated)
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{
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FD_ZERO (&fdset);
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FD_SET (0, &fdset); // stdin
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timeout.tv_sec = 0;
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timeout.tv_usec = 0;
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if (select (1, &fdset, NULL, NULL, &timeout) == -1
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|| !FD_ISSET (0, &fdset))
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return NULL;
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len = read (0, text, sizeof (text));
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if (len < 1)
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return NULL;
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text[len - 1] = 0; // rip off the /n and terminate
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return text;
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}
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return NULL;
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}
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#if !id386
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void Sys_HighFPPrecision (void)
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{
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}
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void Sys_LowFPPrecision (void)
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{
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}
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#endif
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// - DC - create user pref directory
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#if defined (USERPREF_DIR)
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char *Sys_InitUserDir(void)
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{
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char *home;
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char *userdir;
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struct stat stat_buf;
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int ulen;
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home = getenv("HOME");
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if (!home){
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Sys_Error("Environment variable HOME not found.\n");
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}
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ulen = strlen(home)+strlen(prefdir);
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userdir = (char *)malloc(ulen+2);
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strncpy(userdir,home,ulen);
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if (home[strlen(home)-1]!='/'){
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ulen++;
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strncat(userdir,"/",ulen);
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}
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if (stat(userdir,&stat_buf)){
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Sys_Error("could not stat %s\n",userdir);
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}
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strncat(userdir,prefdir,ulen);
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userdir[ulen]=0;
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if (stat(userdir,&stat_buf)){
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if (errno == ENOENT)
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Sys_mkdir(userdir);
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else
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Sys_Error("error while stating %s\n",userdir);
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}
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if (!S_ISDIR(stat_buf.st_mode))
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Sys_Error("%s is not a directory\n",userdir);
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return userdir;
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}
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#endif
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int main (int c, char **v)
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{
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double time, oldtime, newtime;
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quakeparms_t parms;
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extern int vcrFile;
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extern int recording;
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int j;
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int mb_mem_size=50;
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static char *home;
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struct stat stat_buf;
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// signal(SIGFPE, floating_point_exception_handler);
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signal (SIGFPE, SIG_IGN);
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memset (&parms, 0, sizeof (parms));
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COM_InitArgv (c, v);
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parms.argc = com_argc;
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parms.argv = com_argv;
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j = COM_CheckParm ("-heapsize");
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if (j)
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mb_mem_size =
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(int) (Q_atof (com_argv[j + 1]));
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parms.memsize = mb_mem_size*1024*1024;
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parms.membase = malloc (parms.memsize);
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// not enough memory !!
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if (!parms.membase){
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Sys_Error("Not enough memory - asked for %d - change with -heapsize <value in Mb> \n",mb_mem_size);
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}
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#if defined (USERPREF_DIR)
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parms.userdir = Sys_InitUserDir ();
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#endif
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parms.basedir = basedir;
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// caching is disabled by default, use -cachedir to enable
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//parms.cachedir = "";
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fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
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Sys_Init ();
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Host_Init (&parms);
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if (COM_CheckParm ("-nostdout"))
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nostdout = 1;
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else
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{
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fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY);
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printf ("Linux Quake -- Version %0.3f -- basedir = %s\n", LINUX_VERSION,basedir);
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}
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oldtime = Sys_FloatTime () - 0.1;
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while (1)
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{
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// find time spent rendering last frame
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newtime = Sys_FloatTime ();
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time = newtime - oldtime;
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if (cls.state == ca_dedicated)
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{ // play vcrfiles at max speed
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if (time < sys_ticrate.value
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&& (vcrFile == -1 || recording))
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{
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usleep (1);
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continue; // not time to run a server only tic yet
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}
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time = sys_ticrate.value;
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}
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if (time > sys_ticrate.value * 2)
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oldtime = newtime;
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else
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oldtime += time;
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Host_Frame (time);
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// graphic debugging aids
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if (sys_linerefresh.value)
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Sys_LineRefresh ();
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}
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}
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/*
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================
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Sys_MakeCodeWriteable
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================
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*/
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void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length)
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{
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int r;
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unsigned long addr;
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int psize = getpagesize ();
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addr = (startaddr & ~(psize - 1)) - psize;
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// fprintf(stderr, "writable code %lx(%lx)-%lx, length=%lx\n", startaddr,
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// addr, startaddr+length, length);
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r = mprotect ((char *) addr, length + startaddr - addr + psize, 7);
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if (r < 0)
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Sys_Error ("Protection change failed\n");
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}
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