/* Copyright (C) 1996-1997 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. */ #ifdef __i386__ #define _GNU_SOURCE //we need this in order to fix up broken backtraces. make sure its defined only where needed so we still some posixy conformance test on one plat. #endif #include #include #include #include "quakedef.h" #undef malloc #ifdef NeXT #include #endif #include #include #include #include #include #include #include #include #ifdef MULTITHREAD #include #endif // callbacks void Sys_Linebuffer_Callback (struct cvar_s *var, char *oldvalue); cvar_t sys_nostdout = CVAR("sys_nostdout","0"); cvar_t sys_extrasleep = CVAR("sys_extrasleep","0"); cvar_t sys_colorconsole = CVAR("sys_colorconsole", "1"); cvar_t sys_linebuffer = CVARC("sys_linebuffer", "1", Sys_Linebuffer_Callback); qboolean stdin_ready; struct termios orig, changes; /* =============================================================================== REQUIRED SYS FUNCTIONS =============================================================================== */ /* ============ Sys_FileTime returns -1 if not present ============ */ int Sys_FileTime (char *path) { struct stat buf; if (stat (path,&buf) == -1) return -1; return buf.st_mtime; } /* ============ Sys_mkdir ============ */ void Sys_mkdir (char *path) { if (mkdir (path, 0777) != -1) return; // if (errno != EEXIST) // Sys_Error ("mkdir %s: %s",path, strerror(errno)); } qboolean Sys_remove (char *path) { return system(va("rm \"%s\"", path)); } qboolean Sys_Rename (char *oldfname, char *newfname) { return !rename(oldfname, newfname); } int Sys_DebugLog(char *file, char *fmt, ...) { va_list argptr; char data[1024]; int fd; size_t result; va_start(argptr, fmt); vsnprintf (data,sizeof(data)-1, fmt, argptr); va_end(argptr); if (strlen(data) >= sizeof(data)-1) Sys_Error("Sys_DebugLog was stomped\n"); fd = open(file, O_WRONLY | O_CREAT | O_APPEND, 0666); if (fd) { result = write(fd, data, strlen(data)); // do something with the result if (result != strlen(data)) Con_Printf("Sys_DebugLog() write: Filename: %s, expected %lu, result was %lu (%s)\n",file,(unsigned long)strlen(data),(unsigned long)result,strerror(errno)); close(fd); return 0; } return 1; } /* ================ Sys_Milliseconds ================ */ unsigned int Sys_Milliseconds (void) { struct timeval tp; struct timezone tzp; static int secbase; gettimeofday(&tp, &tzp); if (!secbase) { secbase = tp.tv_sec; return tp.tv_usec/1000; } return (tp.tv_sec - secbase)*1000 + tp.tv_usec/1000; } /* ================ Sys_DoubleTime ================ */ double Sys_DoubleTime (void) { struct timeval tp; struct timezone tzp; static int secbase; gettimeofday(&tp, &tzp); if (!secbase) { secbase = tp.tv_sec; return tp.tv_usec/1000000.0; } return (tp.tv_sec - secbase) + tp.tv_usec/1000000.0; } /* ================ Sys_Error ================ */ void Sys_Error (const char *error, ...) { va_list argptr; char string[1024]; va_start (argptr,error); vsnprintf (string,sizeof(string)-1, error,argptr); va_end (argptr); printf ("Fatal error: %s\n",string); tcsetattr(STDIN_FILENO, TCSADRAIN, &orig); //we used to fire sigsegv. this resulted in people reporting segfaults and not the error message that appeared above. resulting in wasted debugging. //abort should trigger a SIGABRT and still give us the same stack trace. should be more useful that way. abort(); exit (1); } int ansiremap[8] = {0, 4, 2, 6, 1, 5, 3, 7}; void ApplyColour(unsigned int chr) { static int oldchar = CON_WHITEMASK; int bg, fg; chr &= CON_FLAGSMASK; if (oldchar == chr) return; oldchar = chr; printf("\e[0;"); // reset if (chr & CON_BLINKTEXT) printf("5;"); // set blink bg = (chr & CON_BGMASK) >> CON_BGSHIFT; fg = (chr & CON_FGMASK) >> CON_FGSHIFT; // don't handle intensive bit for background // as terminals differ too much in displaying \e[1;7;3?m bg &= 0x7; if (chr & CON_NONCLEARBG) { if (fg & 0x8) // intensive bit set for foreground { printf("1;"); // set bold/intensity ansi flag fg &= 0x7; // strip intensive bit } // set foreground and background colors printf("3%i;4%im", ansiremap[fg], ansiremap[bg]); } else { switch(fg) { //to get around wierd defaults (like a white background) we have these special hacks for colours 0 and 7 case COLOR_BLACK: printf("7m"); // set inverse break; case COLOR_GREY: printf("1;30m"); // treat as dark grey break; case COLOR_WHITE: printf("m"); // set nothing else break; default: if (fg & 0x8) // intensive bit set for foreground { printf("1;"); // set bold/intensity ansi flag fg &= 0x7; // strip intensive bit } printf("3%im", ansiremap[fg]); // set foreground break; } } } #define putch(c) putc(c, stdout); void Sys_PrintColouredChar(unsigned int chr) { ApplyColour(chr); chr = chr & CON_CHARMASK; if ((chr > 128 || chr < 32) && chr != 10 && chr != 13 && chr != 9) printf("[%02x]", chr); else chr &= ~0x80; putch(chr); } /* ================ Sys_Printf ================ */ #define MAXPRINTMSG 4096 char coninput_text[256]; int coninput_len; void Sys_Printf (char *fmt, ...) { va_list argptr; if (sys_nostdout.value) return; if (1) { char msg[MAXPRINTMSG]; unsigned char *t; va_start (argptr,fmt); vsnprintf (msg,sizeof(msg)-1, fmt,argptr); va_end (argptr); //if we're not linebuffered, kill the currently displayed input line, add the new text, and add more output. if (!sys_linebuffer.value) { int i; for (i = 0; i < coninput_len; i++) putch('\b'); putch('\b'); for (i = 0; i < coninput_len; i++) putch(' '); putch(' '); for (i = 0; i < coninput_len; i++) putch('\b'); putch('\b'); } if (sys_colorconsole.value) { wchar_t w; conchar_t *e, *c; conchar_t ctext[MAXPRINTMSG]; e = COM_ParseFunString(CON_WHITEMASK, msg, ctext, sizeof(ctext), false); for (c = ctext; c < e; c++) { if (*c & CON_HIDDEN) continue; ApplyColour(*c); w = *c & 0x0ffff; if (w >= 0xe000 && w < 0xe100) { /*not all quake chars are ascii compatible, so map those control chars to safe ones so we don't mess up anyone's xterm*/ if ((w & 0x7f) > 0x20) putc(w&0x7f, stdout); else if (w & 0x80) { static char tab[32] = "---#@.@@@@ # >.." "[]0123456789.---"; putc(tab[w&31], stdout); } else { static char tab[32] = ".####.#### # >.." "[]0123456789.---"; putc(tab[w&31], stdout); } } else { /*putwc doesn't like me. force it in utf8*/ if (w >= 0x80) { if (w > 0x800) { putc(0xe0 | ((w>>12)&0x0f), stdout); putc(0x80 | ((w>>6)&0x3f), stdout); } else putc(0xc0 | ((w>>6)&0x1f), stdout); putc(0x80 | (w&0x3f), stdout); } else putc(w, stdout); } } } else { for (t = (unsigned char*)msg; *t; t++) { if (*t >= 146 && *t < 156) *t = *t - 146 + '0'; if (*t >= 0x12 && *t <= 0x1b) *t = *t - 0x12 + '0'; if (*t == 143) *t = '.'; if (*t == 157 || *t == 158 || *t == 159) *t = '-'; if (*t >= 128) *t -= 128; if (*t == 16) *t = '['; if (*t == 17) *t = ']'; if (*t == 0x1c) *t = 249; *t &= 0x7f; if ((*t > 128 || *t < 32) && *t != 10 && *t != 13 && *t != 9) printf("[%02x]", *t); else putc(*t, stdout); } } //and put the input line back if (!sys_linebuffer.value) { if (coninput_len) printf("]%s", coninput_text); else putch(']'); } } else { va_start (argptr,fmt); vprintf (fmt,argptr); va_end (argptr); } fflush(stdout); } #if 0 /* ================ Sys_Printf ================ */ void Sys_Printf (char *fmt, ...) { va_list argptr; static char text[2048]; unsigned char *p; va_start (argptr,fmt); vsnprintf (text,sizeof(text)-1, fmt,argptr); va_end (argptr); if (strlen(text) > sizeof(text)) Sys_Error("memory overwrite in Sys_Printf"); if (sys_nostdout.value) return; for (p = (unsigned char *)text; *p; p++) { *p &= 0x7f; if ((*p > 128 || *p < 32) && *p != 10 && *p != 13 && *p != 9) printf("[%02x]", *p); else putc(*p, stdout); } fflush(stdout); } #endif /* ================ Sys_Quit ================ */ void Sys_Quit (void) { tcsetattr(STDIN_FILENO, TCSADRAIN, &orig); exit (0); // appkit isn't running } static int do_stdin = 1; #if 1 char *Sys_LineInputChar(char *line) { char c; while(*line) { c = *line++; if (c == '\r' || c == '\n') { coninput_text[coninput_len] = 0; putch ('\n'); putch (']'); coninput_len = 0; fflush(stdout); return coninput_text; } if (c == 8) { if (coninput_len) { putch (c); putch (' '); putch (c); coninput_len--; coninput_text[coninput_len] = 0; } continue; } if (c == '\t') { int i; char *s = Cmd_CompleteCommand(coninput_text, true, true, 0, NULL); if(s) { for (i = 0; i < coninput_len; i++) putch('\b'); for (i = 0; i < coninput_len; i++) putch(' '); for (i = 0; i < coninput_len; i++) putch('\b'); strcpy(coninput_text, s); coninput_len = strlen(coninput_text); printf("%s", coninput_text); } continue; } putch (c); coninput_text[coninput_len] = c; coninput_len++; coninput_text[coninput_len] = 0; if (coninput_len == sizeof(coninput_text)) coninput_len = 0; } fflush(stdout); return NULL; } #endif /* ================ Sys_ConsoleInput Checks for a complete line of text typed in at the console, then forwards it to the host command processor ================ */ void Sys_Linebuffer_Callback (struct cvar_s *var, char *oldvalue) { changes = orig; if (var->value) { changes.c_lflag |= (ICANON|ECHO); } else { changes.c_lflag &= ~(ICANON|ECHO); changes.c_cc[VTIME] = 0; changes.c_cc[VMIN] = 1; } tcsetattr(STDIN_FILENO, TCSADRAIN, &changes); } char *Sys_ConsoleInput (void) { static char text[256]; int len; if (!stdin_ready || !do_stdin) return NULL; // the select didn't say it was ready stdin_ready = false; if (sys_linebuffer.value == 0) { text[0] = getc(stdin); text[1] = 0; len = 1; return Sys_LineInputChar(text); } else { len = read (0, text, sizeof(text)-1); if (len == 0) { // end of file do_stdin = 0; return NULL; } if (len < 1) return NULL; text[len-1] = 0; // rip off the /n and terminate return text; } } /* ============= Sys_Init Quake calls this so the system can register variables before host_hunklevel is marked ============= */ void Sys_Init (void) { Cvar_Register (&sys_nostdout, "System configuration"); Cvar_Register (&sys_extrasleep, "System configuration"); Cvar_Register (&sys_colorconsole, "System configuration"); Cvar_Register (&sys_linebuffer, "System configuration"); } void Sys_Shutdown (void) { } #ifdef __linux__ /*should probably be GNUC but whatever*/ #include #ifdef __i386__ #include #endif static void Friendly_Crash_Handler(int sig, siginfo_t *info, void *vcontext) { int fd; void *array[10]; size_t size; int firstframe = 0; char signame[32]; switch(sig) { case SIGILL: strcpy(signame, "SIGILL"); break; case SIGFPE: strcpy(signame, "SIGFPE"); break; case SIGBUS: strcpy(signame, "SIGBUS"); break; case SIGABRT: strcpy(signame, "SIGABRT"); break; case SIGSEGV: Q_snprintfz(signame, sizeof(signame), "SIGSEGV (%p)", info->si_addr); break; default: Q_snprintfz(signame, sizeof(signame), "%i", sig); break; } // get void*'s for all entries on the stack size = backtrace(array, 10); #if defined(__i386__) //x86 signals don't leave the stack in a clean state, so replace the signal handler with the real crash address, and hide this function ucontext_t *uc = vcontext; array[1] = uc->uc_mcontext.gregs[REG_EIP]; firstframe = 1; #elif defined(__amd64__) //amd64 is sane enough, but this function and the libc signal handler are on the stack, and should be ignored. firstframe = 2; #endif // print out all the frames to stderr fprintf(stderr, "Error: signal %s:\n", signame); backtrace_symbols_fd(array+firstframe, size-firstframe, 2); fd = open("crash.log", O_WRONLY|O_CREAT|O_APPEND, S_IRUSR | S_IWUSR | S_IRGRP); if (fd != -1) { time_t rawtime; struct tm * timeinfo; char buffer [80]; time (&rawtime); timeinfo = localtime (&rawtime); strftime (buffer, sizeof(buffer), "Time: %Y-%m-%d %H:%M:%S\n",timeinfo); write(fd, buffer, strlen(buffer)); Q_snprintfz(buffer, sizeof(buffer), "Binary: "__DATE__" "__TIME__"\n"); write(fd, buffer, strlen(buffer)); Q_snprintfz(buffer, sizeof(buffer), "Ver: %i.%02i%s\n", FTE_VER_MAJOR, FTE_VER_MINOR, #ifdef OFFICIAL_RELEASE " (official)"); #else ""); #endif write(fd, buffer, strlen(buffer)); #ifdef SVNREVISION if (strcmp(STRINGIFY(SVNREVISION), "-")) { Q_snprintfz(buffer, sizeof(buffer), "Revision: %s\n", STRINGIFY(SVNREVISION)); write(fd, buffer, strlen(buffer)); } #endif backtrace_symbols_fd(array + firstframe, size - firstframe, fd); write(fd, "\n", 1); close(fd); } exit(1); } #endif /* ============= main ============= */ int main(int argc, char *argv[]) { float maxsleep; quakeparms_t parms; // fd_set fdset; // extern int net_socket; int j; signal(SIGPIPE, SIG_IGN); tcgetattr(STDIN_FILENO, &orig); changes = orig; memset (&parms, 0, sizeof(parms)); COM_InitArgv (argc, (const char **)argv); parms.argc = com_argc; parms.argv = com_argv; #ifdef __linux__ if (!COM_CheckParm("-nodumpstack")) { struct sigaction act; memset(&act, 0, sizeof(act)); act.sa_sigaction = Friendly_Crash_Handler; act.sa_flags = SA_SIGINFO | SA_RESTART; sigaction(SIGILL, &act, NULL); sigaction(SIGFPE, &act, NULL); sigaction(SIGSEGV, &act, NULL); sigaction(SIGABRT, &act, NULL); sigaction(SIGBUS, &act, NULL); } #endif parms.basedir = "./"; TL_InitLanguages(parms.basedir); SV_Init (&parms); // run one frame immediately for first heartbeat maxsleep = SV_Frame(); // // main loop // while (1) { if (do_stdin) stdin_ready = NET_Sleep(maxsleep, true); else { NET_Sleep(maxsleep, false); stdin_ready = false; } maxsleep = SV_Frame(); // extrasleep is just a way to generate a fucked up connection on purpose if (sys_extrasleep.value) usleep (sys_extrasleep.value); } return 0; } int Sys_EnumerateFiles (const char *gpath, const char *match, int (*func)(const char *, qofs_t, time_t mtime, void *, searchpathfuncs_t *), void *parm, searchpathfuncs_t *spath) { DIR *dir; char apath[MAX_OSPATH]; char file[MAX_OSPATH]; char truepath[MAX_OSPATH]; char *s; struct dirent *ent; struct stat st; //printf("path = %s\n", gpath); //printf("match = %s\n", match); if (!gpath) gpath = ""; *apath = '\0'; Q_strncpyz(apath, match, sizeof(apath)); for (s = apath+strlen(apath)-1; s >= apath; s--) { if (*s == '/') { s[1] = '\0'; match += s - apath+1; break; } } if (s < apath) //didn't find a '/' *apath = '\0'; Q_snprintfz(truepath, sizeof(truepath), "%s/%s", gpath, apath); //printf("truepath = %s\n", truepath); //printf("gamepath = %s\n", gpath); //printf("apppath = %s\n", apath); //printf("match = %s\n", match); dir = opendir(truepath); if (!dir) { Con_DPrintf("Failed to open dir %s\n", truepath); return true; } do { ent = readdir(dir); if (!ent) break; if (*ent->d_name != '.') { if (wildcmp(match, ent->d_name)) { Q_snprintfz(file, sizeof(file), "%s/%s", truepath, ent->d_name); if (stat(file, &st) == 0) { Q_snprintfz(file, sizeof(file), "%s%s%s", apath, ent->d_name, S_ISDIR(st.st_mode)?"/":""); if (!func(file, st.st_size, st.st_mtime, parm, spath)) { closedir(dir); return false; } } else printf("Stat failed for \"%s\"\n", file); } } } while(1); closedir(dir); return true; } void Sys_CloseLibrary(dllhandle_t *lib) { dlclose((void*)lib); } dllhandle_t *Sys_LoadLibrary(const char *name, dllfunction_t *funcs) { int i; dllhandle_t *lib; lib = dlopen (name, RTLD_LAZY); if (!lib) return NULL; if (funcs) { for (i = 0; funcs[i].name; i++) { *funcs[i].funcptr = dlsym(lib, funcs[i].name); if (!*funcs[i].funcptr) break; } if (funcs[i].name) { Sys_CloseLibrary((dllhandle_t*)lib); lib = NULL; } } return (dllhandle_t*)lib; } void *Sys_GetAddressForName(dllhandle_t *module, const char *exportname) { if (!module) return NULL; return dlsym(module, exportname); } void Sys_ServerActivity(void) { } #ifdef MULTITHREAD /* Thread creation calls */ typedef void *(*pfunction_t)(void *); void *Sys_CreateThread(char *name, int (*func)(void *), void *args, int priority, int stacksize) { pthread_t *thread; pthread_attr_t attr; thread = (pthread_t *)malloc(sizeof(pthread_t)); if (!thread) return NULL; pthread_attr_init(&attr); pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE); if (stacksize < PTHREAD_STACK_MIN) stacksize = PTHREAD_STACK_MIN; pthread_attr_setstacksize(&attr, stacksize); if (pthread_create(thread, &attr, (pfunction_t)func, args)) { free(thread); thread = NULL; } pthread_attr_destroy(&attr); return (void *)thread; } void Sys_WaitOnThread(void *thread) { pthread_join((pthread_t *)thread, NULL); free(thread); } /* Mutex calls */ void *Sys_CreateMutex(void) { pthread_mutex_t *mutex = (pthread_mutex_t *)malloc(sizeof(pthread_mutex_t)); if (mutex && !pthread_mutex_init(mutex, NULL)) return mutex; return NULL; } qboolean Sys_TryLockMutex(void *mutex) { return !pthread_mutex_trylock(mutex); } qboolean Sys_LockMutex(void *mutex) { return !pthread_mutex_lock(mutex); } qboolean Sys_UnlockMutex(void *mutex) { return !pthread_mutex_unlock(mutex); } void Sys_DestroyMutex(void *mutex) { pthread_mutex_destroy(mutex); free(mutex); } /* Conditional wait calls */ typedef struct condvar_s { //FIXME: these should not be pointers. pthread_mutex_t *mutex; pthread_cond_t *cond; } condvar_t; void *Sys_CreateConditional(void) { condvar_t *condv; pthread_mutex_t *mutex; pthread_cond_t *cond; condv = (condvar_t *)malloc(sizeof(condvar_t)); if (!condv) return NULL; mutex = (pthread_mutex_t *)malloc(sizeof(pthread_mutex_t)); if (!mutex) return NULL; cond = (pthread_cond_t *)malloc(sizeof(pthread_cond_t)); if (!cond) return NULL; if (!pthread_mutex_init(mutex, NULL)) { if (!pthread_cond_init(cond, NULL)) { condv->cond = cond; condv->mutex = mutex; return (void *)condv; } else pthread_mutex_destroy(mutex); } free(cond); free(mutex); free(condv); return NULL; } qboolean Sys_LockConditional(void *condv) { return !pthread_mutex_lock(((condvar_t *)condv)->mutex); } qboolean Sys_UnlockConditional(void *condv) { return !pthread_mutex_unlock(((condvar_t *)condv)->mutex); } qboolean Sys_ConditionWait(void *condv) { return !pthread_cond_wait(((condvar_t *)condv)->cond, ((condvar_t *)condv)->mutex); } qboolean Sys_ConditionSignal(void *condv) { return !pthread_cond_signal(((condvar_t *)condv)->cond); } qboolean Sys_ConditionBroadcast(void *condv) { return !pthread_cond_broadcast(((condvar_t *)condv)->cond); } void Sys_DestroyConditional(void *condv) { condvar_t *cv = (condvar_t *)condv; pthread_cond_destroy(cv->cond); pthread_mutex_destroy(cv->mutex); free(cv->cond); free(cv->mutex); free(cv); } #endif void Sys_Sleep (double seconds) { struct timespec ts; ts.tv_sec = (time_t)seconds; seconds -= ts.tv_sec; ts.tv_nsec = seconds * 1000000000.0; nanosleep(&ts, NULL); } qboolean Sys_RandomBytes(qbyte *string, int len) { qboolean res; int fd = open("/dev/urandom", 0); res = (read(fd, string, len) == len); close(fd); return res; }