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1.1.1.2 ! root 1: /* ! 2: Copyright (C) 1997-2001 Id Software, Inc. ! 3: ! 4: This program is free software; you can redistribute it and/or ! 5: modify it under the terms of the GNU General Public License ! 6: as published by the Free Software Foundation; either version 2 ! 7: of the License, or (at your option) any later version. ! 8: ! 9: This program is distributed in the hope that it will be useful, ! 10: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 11: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ! 12: ! 13: See the GNU General Public License for more details. ! 14: ! 15: You should have received a copy of the GNU General Public License ! 16: along with this program; if not, write to the Free Software ! 17: Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ! 18: ! 19: */ 1.1 root 20: #include <unistd.h> 21: #include <signal.h> 22: #include <stdlib.h> 23: #include <limits.h> 24: #include <sys/time.h> 25: #include <sys/types.h> 26: #include <unistd.h> 27: #include <fcntl.h> 28: #include <stdarg.h> 29: #include <stdio.h> 30: #include <sys/ipc.h> 31: #include <sys/shm.h> 32: #include <sys/stat.h> 33: #include <string.h> 34: #include <ctype.h> 35: #include <sys/wait.h> 36: #include <sys/mman.h> 37: #include <errno.h> 38: #include <mntent.h> 39: 40: #include <dlfcn.h> 41: 42: #include "../qcommon/qcommon.h" 43: 44: #include "../linux/rw_linux.h" 45: 46: cvar_t *nostdout; 47: 48: unsigned sys_frame_time; 49: 50: uid_t saved_euid; 51: qboolean stdin_active = true; 52: 53: // ======================================================================= 54: // General routines 55: // ======================================================================= 56: 57: void Sys_ConsoleOutput (char *string) 58: { 59: if (nostdout && nostdout->value) 60: return; 61: 62: fputs(string, stdout); 63: } 64: 65: void Sys_Printf (char *fmt, ...) 66: { 67: va_list argptr; 68: char text[1024]; 69: unsigned char *p; 70: 71: va_start (argptr,fmt); 72: vsprintf (text,fmt,argptr); 73: va_end (argptr); 74: 75: if (strlen(text) > sizeof(text)) 76: Sys_Error("memory overwrite in Sys_Printf"); 77: 78: if (nostdout && nostdout->value) 79: return; 80: 81: for (p = (unsigned char *)text; *p; p++) { 82: *p &= 0x7f; 83: if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9) 84: printf("[%02x]", *p); 85: else 86: putc(*p, stdout); 87: } 88: } 89: 90: void Sys_Quit (void) 91: { 92: CL_Shutdown (); 93: Qcommon_Shutdown (); 94: fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY); 95: _exit(0); 96: } 97: 98: void Sys_Init(void) 99: { 100: #if id386 101: // Sys_SetFPCW(); 102: #endif 103: } 104: 105: void Sys_Error (char *error, ...) 106: { 107: va_list argptr; 108: char string[1024]; 109: 110: // change stdin to non blocking 111: fcntl (0, F_SETFL, fcntl (0, F_GETFL, 0) & ~FNDELAY); 112: 113: va_start (argptr,error); 114: vsprintf (string,error,argptr); 115: va_end (argptr); 116: fprintf(stderr, "Error: %s\n", string); 117: 118: CL_Shutdown (); 119: Qcommon_Shutdown (); 120: _exit (1); 121: 122: } 123: 124: void Sys_Warn (char *warning, ...) 125: { 126: va_list argptr; 127: char string[1024]; 128: 129: va_start (argptr,warning); 130: vsprintf (string,warning,argptr); 131: va_end (argptr); 132: fprintf(stderr, "Warning: %s", string); 133: } 134: 135: /* 136: ============ 137: Sys_FileTime 138: 139: returns -1 if not present 140: ============ 141: */ 142: int Sys_FileTime (char *path) 143: { 144: struct stat buf; 145: 146: if (stat (path,&buf) == -1) 147: return -1; 148: 149: return buf.st_mtime; 150: } 151: 152: void floating_point_exception_handler(int whatever) 153: { 154: // Sys_Warn("floating point exception\n"); 155: signal(SIGFPE, floating_point_exception_handler); 156: } 157: 158: char *Sys_ConsoleInput(void) 159: { 160: static char text[256]; 161: int len; 162: fd_set fdset; 163: struct timeval timeout; 164: 165: if (!dedicated || !dedicated->value) 166: return NULL; 167: 168: if (!stdin_active) 169: return NULL; 170: 171: FD_ZERO(&fdset); 172: FD_SET(0, &fdset); // stdin 173: timeout.tv_sec = 0; 174: timeout.tv_usec = 0; 175: if (select (1, &fdset, NULL, NULL, &timeout) == -1 || !FD_ISSET(0, &fdset)) 176: return NULL; 177: 178: len = read (0, text, sizeof(text)); 179: if (len == 0) { // eof! 180: stdin_active = false; 181: return NULL; 182: } 183: 184: if (len < 1) 185: return NULL; 186: text[len-1] = 0; // rip off the /n and terminate 187: 188: return text; 189: } 190: 191: /*****************************************************************************/ 192: 193: static void *game_library; 194: 195: /* 196: ================= 197: Sys_UnloadGame 198: ================= 199: */ 200: void Sys_UnloadGame (void) 201: { 202: if (game_library) 203: dlclose (game_library); 204: game_library = NULL; 205: } 206: 207: /* 208: ================= 209: Sys_GetGameAPI 210: 211: Loads the game dll 212: ================= 213: */ 214: void *Sys_GetGameAPI (void *parms) 215: { 216: #ifndef REF_HARD_LINKED 217: void *(*GetGameAPI) (void *); 218: 219: char name[MAX_OSPATH]; 220: char curpath[MAX_OSPATH]; 221: char *path; 222: #ifdef __sgi 223: const char *gamename = "gamemips.so"; 224: #else 225: #error Unknown arch 226: #endif 227: 228: setreuid(getuid(), getuid()); 229: setegid(getgid()); 230: 231: if (game_library) 232: Com_Error (ERR_FATAL, "Sys_GetGameAPI without Sys_UnloadingGame"); 233: 234: getcwd(curpath, sizeof(curpath)); 235: 236: Com_Printf("------- Loading %s -------", gamename); 237: 238: // now run through the search paths 239: path = NULL; 240: while (1) 241: { 242: path = FS_NextPath (path); 243: if (!path) 244: return NULL; // couldn't find one anywhere 245: sprintf (name, "%s/%s/%s", curpath, path, gamename); 246: Com_Printf ("Trying to load library (%s)\n",name); 247: game_library = dlopen (name, RTLD_NOW ); 248: if (game_library) 249: { 250: Com_DPrintf ("LoadLibrary (%s)\n",name); 251: break; 252: } 253: } 254: 255: GetGameAPI = (void *)dlsym (game_library, "GetGameAPI"); 256: if (!GetGameAPI) 257: { 258: Sys_UnloadGame (); 259: return NULL; 260: } 261: 262: return GetGameAPI (parms); 263: #else 264: return (void *)GetGameAPI (parms); 265: #endif 266: } 267: 268: /*****************************************************************************/ 269: 270: void Sys_AppActivate (void) 271: { 272: } 273: 274: void Sys_SendKeyEvents (void) 275: { 276: if (KBD_Update_fp) 277: KBD_Update_fp(); 278: 279: // grab frame time 280: sys_frame_time = Sys_Milliseconds(); 281: } 282: 283: /*****************************************************************************/ 284: 285: char *Sys_GetClipboardData(void) 286: { 287: return NULL; 288: } 289: 290: int main (int argc, char **argv) 291: { 292: int time, oldtime, newtime; 293: 294: // go back to real user for config loads 295: saved_euid = geteuid(); 296: seteuid(getuid()); 297: 298: Qcommon_Init(argc, argv); 299: 300: /* fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY); */ 301: 302: nostdout = Cvar_Get("nostdout", "0", 0); 303: if (!nostdout->value) { 304: /* fcntl(0, F_SETFL, fcntl (0, F_GETFL, 0) | FNDELAY); */ 305: // printf ("Linux Quake -- Version %0.3f\n", LINUX_VERSION); 306: } 307: 308: oldtime = Sys_Milliseconds (); 309: while (1) 310: { 311: // find time spent rendering last frame 312: do { 313: newtime = Sys_Milliseconds (); 314: time = newtime - oldtime; 315: } while (time < 1); 316: Qcommon_Frame (time); 317: oldtime = newtime; 318: } 319: 320: } 321: 322: void Sys_CopyProtect(void) 323: { 324: FILE *mnt; 325: struct mntent *ent; 326: char path[MAX_OSPATH]; 327: struct stat st; 328: qboolean found_cd = false; 329: 330: static qboolean checked = false; 331: 332: if (checked) 333: return; 334: 335: Com_Printf("XXX - Sys_CopyProtect disabled\n"); 336: checked = true; 337: return; 338: 339: if ((mnt = setmntent("/etc/mtab", "r")) == NULL) 340: Com_Error(ERR_FATAL, "Can't read mount table to determine mounted cd location."); 341: 342: while ((ent = getmntent(mnt)) != NULL) { 343: if (strcmp(ent->mnt_type, "iso9660") == 0) { 344: // found a cd file system 345: found_cd = true; 346: sprintf(path, "%s/%s", ent->mnt_dir, "install/data/quake2.exe"); 347: if (stat(path, &st) == 0) { 348: // found it 349: checked = true; 350: endmntent(mnt); 351: return; 352: } 353: sprintf(path, "%s/%s", ent->mnt_dir, "Install/Data/quake2.exe"); 354: if (stat(path, &st) == 0) { 355: // found it 356: checked = true; 357: endmntent(mnt); 358: return; 359: } 360: sprintf(path, "%s/%s", ent->mnt_dir, "quake2.exe"); 361: if (stat(path, &st) == 0) { 362: // found it 363: checked = true; 364: endmntent(mnt); 365: return; 366: } 367: } 368: } 369: endmntent(mnt); 370: 371: if (found_cd) 372: Com_Error (ERR_FATAL, "Could not find a Quake2 CD in your CD drive."); 373: Com_Error (ERR_FATAL, "Unable to find a mounted iso9660 file system.\n" 374: "You must mount the Quake2 CD in a cdrom drive in order to play."); 375: } 376: 377: #if 0 378: /* 379: ================ 380: Sys_MakeCodeWriteable 381: ================ 382: */ 383: void Sys_MakeCodeWriteable (unsigned long startaddr, unsigned long length) 384: { 385: 386: int r; 387: unsigned long addr; 388: int psize = getpagesize(); 389: 390: addr = (startaddr & ~(psize-1)) - psize; 391: 392: // fprintf(stderr, "writable code %lx(%lx)-%lx, length=%lx\n", startaddr, 393: // addr, startaddr+length, length); 394: 395: r = mprotect((char*)addr, length + startaddr - addr + psize, 7); 396: 397: if (r < 0) 398: Sys_Error("Protection change failed\n"); 399: 400: } 401: 402: #endif
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