/* $XConsortium: utils.c,v 1.147 94/08/16 14:03:23 dpw Exp $ */ /* $XFree86: xc/programs/Xserver/os/utils.c,v 3.6 1994/12/29 10:22:01 dawes Exp $ */ /* Copyright (c) 1987 X Consortium Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of the X Consortium shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the X Consortium. Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts, Copyright 1994 Quarterdeck Office Systems. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the names of Digital and Quarterdeck not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL AND QUARTERDECK DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include "Xos.h" #include #include "misc.h" #include "X.h" #include "input.h" #include "opaque.h" #ifdef X_POSIX_C_SOURCE #define _POSIX_C_SOURCE X_POSIX_C_SOURCE #include #undef _POSIX_C_SOURCE #else #if defined(X_NOT_POSIX) || defined(_POSIX_SOURCE) #include #else #define _POSIX_SOURCE #include #undef _POSIX_SOURCE #endif #endif #if !defined(SYSV) && !defined(AMOEBA) && !defined(_MINIX) #include #endif #include #include #include /* for isspace */ #if NeedVarargsPrototypes #include #endif #ifdef AMOEBA #include "osdep.h" #include #include static mutex print_lock; #endif #if defined(__STDC__) || defined(AMOEBA) /* DHD: SVR4.0 has a prototype for abs() in stdlib.h */ /* DHD: might be better to move this include higher up? */ #ifdef abs #undef abs #endif #ifndef NOSTDHDRS #include /* for malloc() */ #endif #endif extern char *display; extern CARD32 defaultScreenSaverTime; /* for parsing command line */ extern CARD32 defaultScreenSaverInterval; extern int defaultScreenSaverBlanking; extern int defaultBackingStore; extern Bool disableBackingStore; extern Bool disableSaveUnders; extern Bool PartialNetwork; #ifndef NOLOGOHACK extern int logoScreenSaver; #endif #ifdef RLIMIT_DATA extern int limitDataSpace; #endif #ifdef RLIMIT_STACK extern int limitStackSpace; #endif #ifdef RLIMIT_NOFILE extern int limitNoFile; #endif extern int defaultColorVisualClass; extern Bool permitOldBugs; extern int monitorResolution; extern Bool defeatAccessControl; Bool CoreDump; Bool noTestExtensions; Bool noXkbExtension = #ifdef XKB FALSE; #else TRUE; #endif int auditTrailLevel = 1; void ddxUseMsg(); #if NeedVarargsPrototypes void VErrorF(char*, va_list); #endif #ifdef AIXV3 #define AIXFILE "/tmp/aixfile" FILE *aixfd; int SyncOn = 0; extern int SelectWaitTime; #endif #ifdef DEBUG #ifndef SPECIAL_MALLOC #define MEMBUG #endif #endif #ifdef MEMBUG #define MEM_FAIL_SCALE 100000 long Memory_fail = 0; #endif #ifdef sgi int userdefinedfontpath = 0; #endif /* sgi */ Bool Must_have_memory = FALSE; char *dev_tty_from_init = NULL; /* since we need to parse it anyway */ OsSigHandlerPtr OsSignal(sig, handler) int sig; OsSigHandlerPtr handler; { #ifdef X_NOT_POSIX return signal(sig, handler); #else struct sigaction act, oact; sigemptyset(&act.sa_mask); if (handler != SIG_IGN) sigaddset(&act.sa_mask, sig); act.sa_flags = 0; act.sa_handler = handler; sigaction(sig, &act, &oact); return oact.sa_handler; #endif } #ifdef SERVER_LOCK /* * Explicit support for a server lock file like the ones used for UUCP. * For architectures with virtual terminals that can run more than one * server at a time. This keeps the servers from stomping on each other * if the user forgets to give them different display numbers. */ #define LOCK_PATH "/tmp/.X" #define LOCK_TMPPATH "/tmp/.tX" #define LOCK_SUFFIX "-lock" #ifdef _MINIX #include /* For PATH_MAX */ #endif #ifndef PATH_MAX #include #ifndef PATH_MAX #ifdef MAXPATHLEN #define PATH_MAX MAXPATHLEN #else #define PATH_MAX 1024 #endif #endif #endif #include extern int errno; static Bool StillLocking = FALSE; /* * LockServer -- * Check if the server lock file exists. If so, check if the PID * contained inside is valid. If so, then die. Otherwise, create * the lock file containing the PID. */ void LockServer() { #ifndef AMOEBA char tmp[PATH_MAX], lock[PATH_MAX], pid_str[12]; int lfd, i, haslock, l_pid, t; /* * Path names */ (void) sprintf(tmp, "%s%s%s", LOCK_TMPPATH, display, LOCK_SUFFIX); (void) sprintf(lock, "%s%s%s", LOCK_PATH, display, LOCK_SUFFIX); /* * Create a temporary file containing our PID. Attempt three times * to create the file. */ StillLocking = TRUE; i = 0; do { i++; lfd = creat(tmp, 0444); if (lfd < 0) sleep(2); else break; } while (i < 3); if (lfd < 0) FatalError("Could not create lock file in %s\n", tmp); (void) sprintf(pid_str, "%10d\n", getpid()); (void) write(lfd, pid_str, 11); (void) close(lfd); (void) chmod(tmp, 0444); /* * OK. Now the tmp file exists. Try three times to move it in place * for the lock. */ i = 0; haslock = 0; while ((!haslock) && (i++ < 3)) { haslock = (link(tmp,lock) == 0); if (haslock) { /* * We're done. */ break; } else { /* * Read the pid from the existing file */ lfd = open(lock, O_RDONLY); if (lfd < 0) { unlink(tmp); FatalError("Can't read lock file %s\n", lock); } pid_str[0] = '\0'; if (read(lfd, pid_str, 11) != 11) { /* * Bogus lock file. */ unlink(lock); close(lfd); continue; } pid_str[11] = '\0'; sscanf(pid_str, "%d", &l_pid); close(lfd); /* * Now try to kill the PID to see if it exists. */ errno = 0; t = kill(l_pid, 0); if ((t< 0) && (errno == ESRCH)) { /* * Stale lock file. */ unlink(lock); continue; } else if (((t < 0) && (errno == EPERM)) || (t == 0)) { /* * Process is still active. */ unlink(tmp); FatalError("Server is already active for display %s\n%s %s\n%s\n", display, "\tIf this server is no longer running, remove", lock, "\tand start again."); } } } unlink(tmp); if (!haslock) FatalError("Could not create server lock file: %s\n", lock); StillLocking = FALSE; #endif /* !AMOEBA */ } /* * Unlock_Server -- * Remove the server lock file. */ void UnlockServer() { #ifndef AMOEBA char buf[PATH_MAX]; if (StillLocking) return; (void)sprintf(buf, "%s%s%s", LOCK_PATH, display, LOCK_SUFFIX); (void) unlink(buf); #endif } #endif /* SERVER_LOCK */ /* Force connections to close on SIGHUP from init */ /*ARGSUSED*/ SIGVAL AutoResetServer (sig) int sig; { dispatchException |= DE_RESET; isItTimeToYield = TRUE; #ifdef GPROF chdir ("/tmp"); exit (0); #endif #if defined(SYSV) && defined(X_NOT_POSIX) OsSignal (SIGHUP, AutoResetServer); #endif #ifdef AMOEBA WakeUpMainThread(); #endif } /* Force connections to close and then exit on SIGTERM, SIGINT */ /*ARGSUSED*/ SIGVAL GiveUp(sig) int sig; { dispatchException |= DE_TERMINATE; isItTimeToYield = TRUE; #if defined(SYSV) && defined(X_NOT_POSIX) if (sig) OsSignal(sig, SIG_IGN); #endif #ifdef AMOEBA WakeUpMainThread(); #endif } static void AbortServer() { extern void AbortDDX(); OsCleanup(); AbortDDX(); fflush(stderr); #ifdef AMOEBA IOPCleanUp(); #endif if (CoreDump) abort(); exit (1); } void Error(str) char *str; { #ifdef AMOEBA mu_lock(&print_lock); #endif perror(str); #ifdef AMOEBA mu_unlock(&print_lock); #endif } #ifndef DDXTIME CARD32 GetTimeInMillis() { #ifndef AMOEBA struct timeval tp; X_GETTIMEOFDAY(&tp); return(tp.tv_sec * 1000) + (tp.tv_usec / 1000); #else return sys_milli(); #endif } #endif AdjustWaitForDelay (waitTime, newdelay) pointer waitTime; unsigned long newdelay; { static struct timeval delay_val; struct timeval **wt = (struct timeval **) waitTime; unsigned long olddelay; if (*wt == NULL) { delay_val.tv_sec = newdelay / 1000; delay_val.tv_usec = 1000 * (newdelay % 1000); *wt = &delay_val; } else { olddelay = (*wt)->tv_sec * 1000 + (*wt)->tv_usec / 1000; if (newdelay < olddelay) { (*wt)->tv_sec = newdelay / 1000; (*wt)->tv_usec = 1000 * (newdelay % 1000); } } } void UseMsg() { #if !defined(AIXrt) && !defined(AIX386) #ifndef AMOEBA ErrorF("use: X [:] [option]\n"); #else ErrorF("use: X [[]:] [option]\n"); #endif ErrorF("-a # mouse acceleration (pixels)\n"); ErrorF("-ac disable access control restrictions\n"); #ifdef MEMBUG ErrorF("-alloc int chance alloc should fail\n"); #endif ErrorF("-audit int set audit trail level\n"); ErrorF("-auth string select authorization file\n"); ErrorF("bc enable bug compatibility\n"); ErrorF("-bs disable any backing store support\n"); ErrorF("-c turns off key-click\n"); ErrorF("c # key-click volume (0-100)\n"); ErrorF("-cc int default color visual class\n"); ErrorF("-co string color database file\n"); ErrorF("-config string read options from file\n"); ErrorF("-core generate core dump on fatal error\n"); ErrorF("-dpi int screen resolution in dots per inch\n"); ErrorF("-deferglyphs [none|all|16] defer loading of [no|all|16-bit] glyphs\n"); ErrorF("-f # bell base (0-100)\n"); ErrorF("-fc string cursor font\n"); ErrorF("-fn string default font name\n"); ErrorF("-fp string default font path\n"); ErrorF("-help prints message with these options\n"); ErrorF("-I ignore all remaining arguments\n"); ErrorF("-kb disable XKB extension\n"); #ifdef XKB XkbUseMsg(); #endif #ifdef RLIMIT_DATA ErrorF("-ld int limit data space to N Kb\n"); #endif #ifdef RLIMIT_NOFILE ErrorF("-lf int limit number of open files to N\n"); #endif #ifdef RLIMIT_STACK ErrorF("-ls int limit stack space to N Kb\n"); #endif #ifndef NOLOGOHACK ErrorF("-logo enable logo in screen saver\n"); ErrorF("nologo disable logo in screen saver\n"); #endif ErrorF("-p # screen-saver pattern duration (minutes)\n"); ErrorF("-pn accept failure to listen on all ports\n"); ErrorF("-nopn reject failure to listen on all ports\n"); ErrorF("-r turns off auto-repeat\n"); ErrorF("r turns on auto-repeat \n"); ErrorF("-s # screen-saver timeout (minutes)\n"); ErrorF("-su disable any save under support\n"); ErrorF("-t # mouse threshold (pixels)\n"); ErrorF("-terminate terminate at server reset\n"); ErrorF("-to # connection time out\n"); ErrorF("-tst disable testing extensions\n"); ErrorF("ttyxx server started from init on /dev/ttyxx\n"); ErrorF("v video blanking for screen-saver\n"); ErrorF("-v screen-saver without video blanking\n"); ErrorF("-wm WhenMapped default backing-store\n"); ErrorF("-x string loads named extension at init time \n"); #ifdef AMOEBA ErrorF("-tcp capability specify TCP/IP server capability\n"); #endif #ifdef XDMCP XdmcpUseMsg(); #endif #endif /* !AIXrt && ! AIX386 */ ddxUseMsg(); } /* * This function parses the command line. Handles device-independent fields * and allows ddx to handle additional fields. It is not allowed to modify * argc or any of the strings pointed to by argv. */ void ProcessCommandLine ( argc, argv ) int argc; char *argv[]; { int i, skip; #ifdef AMOEBA mu_init(&print_lock); #endif defaultKeyboardControl.autoRepeat = TRUE; #ifdef PART_NET PartialNetwork = TRUE; #endif #ifdef AIXV3 OpenDebug(); #endif for ( i = 1; i < argc; i++ ) { /* call ddx first, so it can peek/override if it wants */ if(skip = ddxProcessArgument(argc, argv, i)) { i += (skip - 1); } else if(argv[i][0] == ':') { /* initialize display */ display = argv[i]; display++; } #ifdef AMOEBA else if (strchr(argv[i], ':') != NULL) { char *p; XServerHostName = argv[i]; if ((p = strchr(argv[i], ':')) != NULL) { *p++ = '\0'; display = p; } } else if (strcmp( argv[i], "-tcp") == 0) { if (++i < argc) XTcpServerName = argv[i]; else UseMsg(); } #endif /* AMOEBA */ else if ( strcmp( argv[i], "-a") == 0) { if(++i < argc) defaultPointerControl.num = atoi(argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "-ac") == 0) { defeatAccessControl = TRUE; } #ifdef MEMBUG else if ( strcmp( argv[i], "-alloc") == 0) { if(++i < argc) Memory_fail = atoi(argv[i]); else UseMsg(); } #endif else if ( strcmp( argv[i], "-audit") == 0) { if(++i < argc) auditTrailLevel = atoi(argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "-auth") == 0) { if(++i < argc) InitAuthorization (argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "bc") == 0) permitOldBugs = TRUE; else if ( strcmp( argv[i], "-bs") == 0) disableBackingStore = TRUE; else if ( strcmp( argv[i], "c") == 0) { if(++i < argc) defaultKeyboardControl.click = atoi(argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "-c") == 0) { defaultKeyboardControl.click = 0; } else if ( strcmp( argv[i], "-cc") == 0) { if(++i < argc) defaultColorVisualClass = atoi(argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "-co") == 0) { if(++i < argc) rgbPath = argv[i]; else UseMsg(); } else if ( strcmp( argv[i], "-core") == 0) CoreDump = TRUE; else if ( strcmp( argv[i], "-dpi") == 0) { if(++i < argc) monitorResolution = atoi(argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "-deferglyphs") == 0) { if(++i >= argc || !ParseGlyphCachingMode(argv[i])) UseMsg(); } else if ( strcmp( argv[i], "-f") == 0) { if(++i < argc) defaultKeyboardControl.bell = atoi(argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "-fc") == 0) { if(++i < argc) defaultCursorFont = argv[i]; else UseMsg(); } else if ( strcmp( argv[i], "-fn") == 0) { if(++i < argc) defaultTextFont = argv[i]; else UseMsg(); } else if ( strcmp( argv[i], "-fp") == 0) { if(++i < argc) { #ifdef sgi userdefinedfontpath = 1; #endif /* sgi */ defaultFontPath = argv[i]; } else UseMsg(); } else if ( strcmp( argv[i], "-help") == 0) { UseMsg(); exit(0); } else if ( strcmp( argv[i], "-kb") == 0) { #ifdef XKB noXkbExtension = TRUE; #endif } #ifdef XKB else if ( (skip=XkbProcessArguments(argc,argv,i))!=0 ) { if (skip>0) i+= skip-1; else UseMsg(); } #endif #ifdef RLIMIT_DATA else if ( strcmp( argv[i], "-ld") == 0) { if(++i < argc) { limitDataSpace = atoi(argv[i]); if (limitDataSpace > 0) limitDataSpace *= 1024; } else UseMsg(); } #endif #ifdef RLIMIT_NOFILE else if ( strcmp( argv[i], "-lf") == 0) { if(++i < argc) limitNoFile = atoi(argv[i]); else UseMsg(); } #endif #ifdef RLIMIT_STACK else if ( strcmp( argv[i], "-ls") == 0) { if(++i < argc) { limitStackSpace = atoi(argv[i]); if (limitStackSpace > 0) limitStackSpace *= 1024; } else UseMsg(); } #endif #ifndef NOLOGOHACK else if ( strcmp( argv[i], "-logo") == 0) { logoScreenSaver = 1; } else if ( strcmp( argv[i], "nologo") == 0) { logoScreenSaver = 0; } #endif else if ( strcmp( argv[i], "-p") == 0) { if(++i < argc) defaultScreenSaverInterval = ((CARD32)atoi(argv[i])) * MILLI_PER_MIN; else UseMsg(); } else if ( strcmp( argv[i], "-pn") == 0) PartialNetwork = TRUE; else if ( strcmp( argv[i], "-nopn") == 0) PartialNetwork = FALSE; else if ( strcmp( argv[i], "r") == 0) defaultKeyboardControl.autoRepeat = TRUE; else if ( strcmp( argv[i], "-r") == 0) defaultKeyboardControl.autoRepeat = FALSE; else if ( strcmp( argv[i], "-s") == 0) { if(++i < argc) defaultScreenSaverTime = ((CARD32)atoi(argv[i])) * MILLI_PER_MIN; else UseMsg(); } else if ( strcmp( argv[i], "-su") == 0) disableSaveUnders = TRUE; else if ( strcmp( argv[i], "-t") == 0) { if(++i < argc) defaultPointerControl.threshold = atoi(argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "-terminate") == 0) { extern Bool terminateAtReset; terminateAtReset = TRUE; } else if ( strcmp( argv[i], "-to") == 0) { if(++i < argc) TimeOutValue = ((long)atoi(argv[i])) * MILLI_PER_SECOND; else UseMsg(); } else if ( strcmp( argv[i], "-tst") == 0) { noTestExtensions = TRUE; } else if ( strcmp( argv[i], "v") == 0) defaultScreenSaverBlanking = PreferBlanking; else if ( strcmp( argv[i], "-v") == 0) defaultScreenSaverBlanking = DontPreferBlanking; else if ( strcmp( argv[i], "-wm") == 0) defaultBackingStore = WhenMapped; else if ( strcmp( argv[i], "-x") == 0) { if(++i >= argc) UseMsg(); /* For U**x, which doesn't support dynamic loading, there's nothing * to do when we see a -x. Either the extension is linked in or * it isn't */ } else if ( strcmp( argv[i], "-I") == 0) { /* ignore all remaining arguments */ break; } else if (strncmp (argv[i], "tty", 3) == 0) { /* just in case any body is interested */ dev_tty_from_init = argv[i]; } #ifdef XDMCP else if ((skip = XdmcpOptions(argc, argv, i)) != i) { i = skip - 1; } #endif #ifdef AIXV3 else if ( strcmp( argv[i], "-timeout") == 0) { if(++i < argc) SelectWaitTime = atoi(argv[i]); else UseMsg(); } else if ( strcmp( argv[i], "-sync") == 0) { SyncOn++; } #endif else { UseMsg(); exit (1); } } } static void InsertFileIntoCommandLine(resargc, resargv, prefix_argc, prefix_argv, filename, suffix_argc, suffix_argv) int *resargc; char ***resargv; int prefix_argc; char **prefix_argv; char *filename; int suffix_argc; char **suffix_argv; { struct stat st; FILE *f; char *p; char *q; int insert_argc; char *buf; int len; int i; f = fopen(filename, "r"); if (!f) FatalError("Can't open option file %s\n", filename); fstat(fileno(f), &st); buf = (char *) xalloc((unsigned) st.st_size + 1); if (!buf) FatalError("Out of Memory\n"); len = fread(buf, 1, (unsigned) st.st_size, f); fclose(f); if (len < 0) FatalError("Error reading option file %s\n", filename); buf[len] = '\0'; p = buf; q = buf; insert_argc = 0; while (*p) { while (isspace(*p)) p++; if (!*p) break; if (*p == '#') { while (*p && *p != '\n') p++; } else { while (*p && !isspace(*p)) *q++ = *p++; /* Since p and q might still be pointing at the same place, we */ /* need to step p over the whitespace now before we add the null. */ if (*p) p++; *q++ = '\0'; insert_argc++; } } buf = (char *) xrealloc(buf, q - buf); if (!buf) FatalError("Out of memory reallocing option buf\n"); *resargc = prefix_argc + insert_argc + suffix_argc; *resargv = (char **) xalloc((*resargc + 1) * sizeof(char *)); memcpy(*resargv, prefix_argv, prefix_argc * sizeof(char *)); p = buf; for (i = 0; i < insert_argc; i++) { (*resargv)[prefix_argc + i] = p; p += strlen(p) + 1; } memcpy(*resargv + prefix_argc + insert_argc, suffix_argv, suffix_argc * sizeof(char *)); (*resargv)[*resargc] = NULL; } /* end InsertFileIntoCommandLine */ void ExpandCommandLine(pargc, pargv) int *pargc; char ***pargv; { int i; for (i = 1; i < *pargc; i++) { if ( (0 == strcmp((*pargv)[i], "-config")) && (i < (*pargc - 1)) ) { InsertFileIntoCommandLine(pargc, pargv, i, *pargv, (*pargv)[i+1], /* filename */ *pargc - i - 2, *pargv + i + 2); i--; } } } /* end ExpandCommandLine */ /* Implement a simple-minded font authorization scheme. The authorization name is "hp-hostname-1", the contents are simply the host name. */ int set_font_authorizations(authorizations, authlen, client) char **authorizations; int *authlen; pointer client; { #define AUTHORIZATION_NAME "hp-hostname-1" #if defined(TCPCONN) || defined(STREAMSCONN) #include static char result[1024]; static char *p = NULL; if (p == NULL) { char hname[1024], *hnameptr; struct hostent *host; int len; gethostname(hname, 1024); host = gethostbyname(hname); if (host == NULL) hnameptr = hname; else hnameptr = host->h_name; p = result; *p++ = sizeof(AUTHORIZATION_NAME) >> 8; *p++ = sizeof(AUTHORIZATION_NAME) & 0xff; *p++ = (len = strlen(hnameptr) + 1) >> 8; *p++ = (len & 0xff); memmove(p, AUTHORIZATION_NAME, sizeof(AUTHORIZATION_NAME)); p += sizeof(AUTHORIZATION_NAME); memmove(p, hnameptr, len); p += len; } *authlen = p - result; *authorizations = result; return 1; #else /* TCPCONN */ return 0; #endif /* TCPCONN */ } /* XALLOC -- X's internal memory allocator. Why does it return unsigned * int * instead of the more common char *? Well, if you read K&R you'll * see they say that alloc must return a pointer "suitable for conversion" * to whatever type you really want. In a full-blown generic allocator * there's no way to solve the alignment problems without potentially * wasting lots of space. But we have a more limited problem. We know * we're only ever returning pointers to structures which will have to * be long word aligned. So we are making a stronger guarantee. It might * have made sense to make Xalloc return char * to conform with people's * expectations of malloc, but this makes lint happier. */ unsigned long * Xalloc (amount) unsigned long amount; { #if !defined(__STDC__) && !defined(AMOEBA) char *malloc(); #endif register pointer ptr; if ((long)amount <= 0) return (unsigned long *)NULL; /* aligned extra on long word boundary */ amount = (amount + (sizeof(long) - 1)) & ~(sizeof(long) - 1); #ifdef MEMBUG if (!Must_have_memory && Memory_fail && ((random() % MEM_FAIL_SCALE) < Memory_fail)) return (unsigned long *)NULL; #endif if (ptr = (pointer)malloc(amount)) return (unsigned long *)ptr; if (Must_have_memory) FatalError("Out of memory"); return (unsigned long *)NULL; } /***************** * XNFalloc * "no failure" realloc, alternate interface to Xalloc w/o Must_have_memory *****************/ unsigned long * XNFalloc (amount) unsigned long amount; { #if !defined(__STDC__) && !defined(AMOEBA) char *malloc(); #endif register pointer ptr; if ((long)amount <= 0) { return (unsigned long *)NULL; } /* aligned extra on long word boundary */ amount = (amount + 3) & ~3; ptr = (pointer)malloc(amount); if (!ptr) { FatalError("Out of memory"); } return ((unsigned long *)ptr); } /***************** * Xcalloc *****************/ unsigned long * Xcalloc (amount) unsigned long amount; { unsigned long *ret; ret = Xalloc (amount); if (ret) bzero ((char *) ret, (int) amount); return ret; } /***************** * Xrealloc *****************/ unsigned long * Xrealloc (ptr, amount) register pointer ptr; unsigned long amount; { #if !defined(__STDC__) && !defined(AMOEBA) char *malloc(); char *realloc(); #endif #ifdef MEMBUG if (!Must_have_memory && Memory_fail && ((random() % MEM_FAIL_SCALE) < Memory_fail)) return (unsigned long *)NULL; #endif if ((long)amount <= 0) { if (ptr && !amount) free(ptr); return (unsigned long *)NULL; } amount = (amount + 3) & ~3; if (ptr) ptr = (pointer)realloc((char *)ptr, amount); else ptr = (pointer)malloc(amount); if (ptr) return (unsigned long *)ptr; if (Must_have_memory) FatalError("Out of memory"); return (unsigned long *)NULL; } /***************** * XNFrealloc * "no failure" realloc, alternate interface to Xrealloc w/o Must_have_memory *****************/ unsigned long * XNFrealloc (ptr, amount) register pointer ptr; unsigned long amount; { if (( ptr = (pointer)Xrealloc( ptr, amount ) ) == NULL) { FatalError( "Out of memory" ); } return ((unsigned long *)ptr); } /***************** * Xfree * calls free *****************/ void Xfree(ptr) register pointer ptr; { if (ptr) free((char *)ptr); } OsInitAllocator () { #ifdef MEMBUG static int been_here; /* Check the memory system after each generation */ if (been_here) CheckMemory (); else been_here = 1; #endif } /*VARARGS1*/ void AuditF( #if NeedVarargsPrototypes char * f, ...) #else f, s0, s1, s2, s3, s4, s5, s6, s7, s8, s9) /* limit of ten args */ char *f; char *s0, *s1, *s2, *s3, *s4, *s5, *s6, *s7, *s8, *s9; #endif { #ifdef X_NOT_STDC_ENV long tm; #else time_t tm; #endif char *autime, *s; #if NeedVarargsPrototypes va_list args; #endif if (*f != ' ') { time(&tm); autime = ctime(&tm); if (s = strchr(autime, '\n')) *s = '\0'; if (s = strrchr(argvGlobal[0], '/')) s++; else s = argvGlobal[0]; ErrorF("AUDIT: %s: %d %s: ", autime, getpid(), s); } #if NeedVarargsPrototypes va_start(args, f); VErrorF(f, args); va_end(args); #else ErrorF(f, s0, s1, s2, s3, s4, s5, s6, s7, s8, s9); #endif } /*VARARGS1*/ void FatalError( #if NeedVarargsPrototypes char *f, ...) #else f, s0, s1, s2, s3, s4, s5, s6, s7, s8, s9) /* limit of ten args */ char *f; char *s0, *s1, *s2, *s3, *s4, *s5, *s6, *s7, *s8, *s9; #endif { #if NeedVarargsPrototypes va_list args; #endif ErrorF("\nFatal server error:\n"); #if NeedVarargsPrototypes va_start(args, f); VErrorF(f, args); va_end(args); #else ErrorF(f, s0, s1, s2, s3, s4, s5, s6, s7, s8, s9); #endif ErrorF("\n"); AbortServer(); /*NOTREACHED*/ } #if NeedVarargsPrototypes void VErrorF(f, args) char *f; va_list args; { #ifdef AIXV3 vfprintf(aixfd, f, args); fflush (aixfd); if (SyncOn) sync(); #else vfprintf(stderr, f, args); #endif /* AIXV3 */ } #endif /*VARARGS1*/ void ErrorF( #if NeedVarargsPrototypes char * f, ...) #else f, s0, s1, s2, s3, s4, s5, s6, s7, s8, s9) /* limit of ten args */ char *f; char *s0, *s1, *s2, *s3, *s4, *s5, *s6, *s7, *s8, *s9; #endif { #if NeedVarargsPrototypes va_list args; va_start(args, f); VErrorF(f, args); va_end(args); #else #ifdef AIXV3 fprintf(aixfd, f, s0, s1, s2, s3, s4, s5, s6, s7, s8, s9); fflush (aixfd); if (SyncOn) sync(); #else /* not AIXV3 */ #ifdef AMOEBA mu_lock(&print_lock); #endif fprintf( stderr, f, s0, s1, s2, s3, s4, s5, s6, s7, s8, s9); #ifdef AMOEBA mu_unlock(&print_lock); #endif #endif /* AIXV3 */ #endif } #ifdef AIXV3 OpenDebug() { if((aixfd = fopen(AIXFILE,"w")) == NULL ) { fprintf(stderr,"open aixfile failed\n"); exit(-1); } chmod(AIXFILE,00777); } #endif