657 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			657 lines
		
	
	
		
			17 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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| 
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| Copyright 1987, 1998  The Open Group
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| 
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| Permission to use, copy, modify, distribute, and sell this software and its
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| documentation for any purpose is hereby granted without fee, provided that
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| the above copyright notice appear in all copies and that both that
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| copyright notice and this permission notice appear in supporting
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| documentation.
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| 
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| The above copyright notice and this permission notice shall be included
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| in all copies or substantial portions of the Software.
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| 
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| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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| OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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| IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
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| OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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| ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| OTHER DEALINGS IN THE SOFTWARE.
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| 
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| Except as contained in this notice, the name of The Open Group shall
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| not be used in advertising or otherwise to promote the sale, use or
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| other dealings in this Software without prior written authorization
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| from The Open Group.
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| 
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| 
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| Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
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| Copyright 1994 Quarterdeck Office Systems.
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| 
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|                         All Rights Reserved
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| 
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| Permission to use, copy, modify, and distribute this software and its
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| documentation for any purpose and without fee is hereby granted,
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| provided that the above copyright notice appear in all copies and that
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| both that copyright notice and this permission notice appear in
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| supporting documentation, and that the names of Digital and
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| Quarterdeck not be used in advertising or publicity pertaining to
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| distribution of the software without specific, written prior
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| permission.
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| 
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| DIGITAL AND QUARTERDECK DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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| SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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| FITNESS, IN NO EVENT SHALL DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT
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| OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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| OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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| OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE
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| OR PERFORMANCE OF THIS SOFTWARE.
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| 
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| */
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| 
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| /*
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|  * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
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|  *
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|  * Permission is hereby granted, free of charge, to any person obtaining a
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|  * copy of this software and associated documentation files (the "Software"),
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|  * to deal in the Software without restriction, including without limitation
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|  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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|  * and/or sell copies of the Software, and to permit persons to whom the
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|  * Software is furnished to do so, subject to the following conditions:
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|  *
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|  * The above copyright notice and this permission notice shall be included in
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|  * all copies or substantial portions of the Software.
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|  *
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|  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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|  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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|  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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|  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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|  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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|  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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|  * OTHER DEALINGS IN THE SOFTWARE.
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|  *
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|  * Except as contained in this notice, the name of the copyright holder(s)
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|  * and author(s) shall not be used in advertising or otherwise to promote
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|  * the sale, use or other dealings in this Software without prior written
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|  * authorization from the copyright holder(s) and author(s).
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|  */
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| 
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| 
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| #ifdef HAVE_DIX_CONFIG_H
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| #include <dix-config.h>
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| #endif
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| 
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| #include <X11/Xos.h>
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| #include <stdio.h>
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| #include <time.h>
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| #include <sys/stat.h>
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| #include <stdarg.h>
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| #include <stdlib.h>	/* for malloc() */
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| 
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| #include "input.h"
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| #include "site.h"
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| #include "opaque.h"
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| 
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| #ifdef WIN32
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| #include <process.h>
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| #define getpid(x) _getpid(x)
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| #endif
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| 
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| #ifdef XF86BIGFONT
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| #include "xf86bigfontsrv.h"
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| #endif
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| 
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| #ifdef __clang__
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| #pragma clang diagnostic ignored "-Wformat-nonliteral"
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| #endif
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| 
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| #ifdef DDXOSVERRORF
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| void (*OsVendorVErrorFProc)(const char *, va_list args) = NULL;
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| #endif
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| 
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| static FILE *logFile = NULL;
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| static Bool logFlush = FALSE;
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| static Bool logSync = FALSE;
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| static int logVerbosity = DEFAULT_LOG_VERBOSITY;
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| static int logFileVerbosity = DEFAULT_LOG_FILE_VERBOSITY;
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| 
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| /* Buffer to information logged before the log file is opened. */
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| static char *saveBuffer = NULL;
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| static int bufferSize = 0, bufferUnused = 0, bufferPos = 0;
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| static Bool needBuffer = TRUE;
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| 
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| #ifdef __APPLE__
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| #include <AvailabilityMacros.h>
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| 
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| static char __crashreporter_info_buff__[4096] = {0};
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| static const char *__crashreporter_info__ __attribute__((__used__)) = &__crashreporter_info_buff__[0];
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| #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
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| // This is actually a toolchain requirement, but I'm not sure the correct check,        
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| // but it should be fine to just only include it for Leopard and later.  This line
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| // just tells the linker to never strip this symbol (such as for space optimization)
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| asm (".desc ___crashreporter_info__, 0x10");
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| #endif
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| #endif
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| 
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| /* Prefix strings for log messages. */
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| #ifndef X_UNKNOWN_STRING
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| #define X_UNKNOWN_STRING		"(\?\?)"
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| #endif
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| #ifndef X_PROBE_STRING
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| #define X_PROBE_STRING			"(--)"
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| #endif
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| #ifndef X_CONFIG_STRING
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| #define X_CONFIG_STRING			"(**)"
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| #endif
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| #ifndef X_DEFAULT_STRING
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| #define X_DEFAULT_STRING		"(==)"
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| #endif
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| #ifndef X_CMDLINE_STRING
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| #define X_CMDLINE_STRING		"(++)"
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| #endif
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| #ifndef X_NOTICE_STRING
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| #define X_NOTICE_STRING			"(!!)"
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| #endif
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| #ifndef X_ERROR_STRING
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| #define X_ERROR_STRING			"(EE)"
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| #endif
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| #ifndef X_WARNING_STRING
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| #define X_WARNING_STRING		"(WW)"
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| #endif
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| #ifndef X_INFO_STRING
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| #define X_INFO_STRING			"(II)"
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| #endif
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| #ifndef X_NOT_IMPLEMENTED_STRING
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| #define X_NOT_IMPLEMENTED_STRING	"(NI)"
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| #endif
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| #ifndef X_NONE_STRING
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| #define X_NONE_STRING                   ""
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| #endif
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| 
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| /*
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|  * LogInit is called to start logging to a file.  It is also called (with
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|  * NULL arguments) when logging to a file is not wanted.  It must always be
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|  * called, otherwise log messages will continue to accumulate in a buffer.
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|  *
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|  * %s, if present in the fname or backup strings, is expanded to the display
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|  * string.
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|  */
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| 
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| const char *
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| LogInit(const char *fname, const char *backup)
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| {
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|     char *logFileName = NULL;
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| 
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|     if (fname && *fname) {
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| 	if (asprintf(&logFileName, fname, display) == -1)
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| 	    FatalError("Cannot allocate space for the log file name\n");
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| 
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| 	if (backup && *backup) {
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| 	    struct stat buf;
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| 
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| 	    if (!stat(logFileName, &buf) && S_ISREG(buf.st_mode)) {
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| 		char *suffix;
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| 		char *oldLog;
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| 
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| 		if ((asprintf(&suffix, backup, display) == -1) ||
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| 		    (asprintf(&oldLog, "%s%s", logFileName, suffix) == -1))
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| 		    FatalError("Cannot allocate space for the log file name\n");
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| 		free(suffix);
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| 		if (rename(logFileName, oldLog) == -1) {
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| 		    FatalError("Cannot move old log file \"%s\" to \"%s\"\n",
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| 			       logFileName, oldLog);
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| 		}
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| 		free(oldLog);
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| 	    }
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| 	}
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| 	if ((logFile = fopen(logFileName, "w")) == NULL)
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| 	    FatalError("Cannot open log file \"%s\"\n", logFileName);
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| 	setvbuf(logFile, NULL, _IONBF, 0);
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| 
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| 	/* Flush saved log information. */
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| 	if (saveBuffer && bufferSize > 0) {
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| 	    fwrite(saveBuffer, bufferPos, 1, logFile);
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| 	    fflush(logFile);
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| #ifndef WIN32
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| 	    fsync(fileno(logFile));
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| #endif
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| 	}
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|     }
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| 
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|     /*
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|      * Unconditionally free the buffer, and flag that the buffer is no longer
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|      * needed.
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|      */
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|     if (saveBuffer && bufferSize > 0) {
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| 	free(saveBuffer);	/* Must be free(), not free() */
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| 	saveBuffer = NULL;
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| 	bufferSize = 0;
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|     }
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|     needBuffer = FALSE;
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| 
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|     return logFileName;
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| }
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| 
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| void
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| LogClose(enum ExitCode error)
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| {
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|     if (logFile) {
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| 	ErrorF("Server terminated %s (%d). Closing log file.\n",
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| 		(error == EXIT_NO_ERROR) ? "successfully" : "with error", error);
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| 	fclose(logFile);
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| 	logFile = NULL;
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|     }
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| }
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| 
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| Bool
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| LogSetParameter(LogParameter param, int value)
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| {
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|     switch (param) {
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|     case XLOG_FLUSH:
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| 	logFlush = value ? TRUE : FALSE;
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| 	return TRUE;
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|     case XLOG_SYNC:
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| 	logSync = value ? TRUE : FALSE;
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| 	return TRUE;
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|     case XLOG_VERBOSITY:
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| 	logVerbosity = value;
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| 	return TRUE;
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|     case XLOG_FILE_VERBOSITY:
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| 	logFileVerbosity = value;
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| 	return TRUE;
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|     default:
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| 	return FALSE;
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|     }
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| }
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| 
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| /* This function does the actual log message writes. */
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| 
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| void
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| LogVWrite(int verb, const char *f, va_list args)
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| {
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|     static char tmpBuffer[1024];
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|     int len = 0;
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|     static Bool newline = TRUE;
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| 
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|     if (newline) {
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| 	sprintf(tmpBuffer, "[%10.3f] ", GetTimeInMillis() / 1000.0);
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| 	len = strlen(tmpBuffer);
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| 	if (logFile)
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| 	    fwrite(tmpBuffer, len, 1, logFile);
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|     }
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| 
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|     /*
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|      * Since a va_list can only be processed once, write the string to a
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|      * buffer, and then write the buffer out to the appropriate output
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|      * stream(s).
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|      */
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|     if (verb < 0 || logFileVerbosity >= verb || logVerbosity >= verb) {
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| 	vsnprintf(tmpBuffer, sizeof(tmpBuffer), f, args);
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| 	len = strlen(tmpBuffer);
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|     }
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|     newline = (tmpBuffer[len-1] == '\n');
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|     if ((verb < 0 || logVerbosity >= verb) && len > 0)
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| 	fwrite(tmpBuffer, len, 1, stderr);
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|     if ((verb < 0 || logFileVerbosity >= verb) && len > 0) {
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| 	if (logFile) {
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| 	    fwrite(tmpBuffer, len, 1, logFile);
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| 	    if (logFlush) {
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| 		fflush(logFile);
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| #ifndef WIN32
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| 		if (logSync)
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| 		    fsync(fileno(logFile));
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| #endif
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| 	    }
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| 	} else if (needBuffer) {
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| 	    if (len > bufferUnused) {
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| 		bufferSize += 1024;
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| 		bufferUnused += 1024;
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| 		saveBuffer = realloc(saveBuffer, bufferSize);
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| 		if (!saveBuffer)
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| 		    FatalError("realloc() failed while saving log messages\n");
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| 	    }
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| 	    bufferUnused -= len;
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| 	    memcpy(saveBuffer + bufferPos, tmpBuffer, len);
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| 	    bufferPos += len;
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| 	}
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|     }
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| }
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| 
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| void
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| LogWrite(int verb, const char *f, ...)
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| {
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|     va_list args;
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| 
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|     va_start(args, f);
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|     LogVWrite(verb, f, args);
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|     va_end(args);
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| }
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| 
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| /* Returns the Message Type string to prepend to a logging message, or NULL
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|  * if the message will be dropped due to insufficient verbosity. */
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| static const char *
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| LogMessageTypeVerbString(MessageType type, int verb)
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| {
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|     if (type == X_ERROR)
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| 	verb = 0;
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| 
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|     if (logVerbosity < verb && logFileVerbosity < verb)
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| 	return NULL;
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| 
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|     switch (type) {
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|     case X_PROBED:
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| 	return X_PROBE_STRING;
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|     case X_CONFIG:
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| 	return X_CONFIG_STRING;
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|     case X_DEFAULT:
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| 	return X_DEFAULT_STRING;
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|     case X_CMDLINE:
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| 	return X_CMDLINE_STRING;
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|     case X_NOTICE:
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| 	return X_NOTICE_STRING;
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|     case X_ERROR:
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| 	return X_ERROR_STRING;
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|     case X_WARNING:
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| 	return X_WARNING_STRING;
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|     case X_INFO:
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| 	return X_INFO_STRING;
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|     case X_NOT_IMPLEMENTED:
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| 	return X_NOT_IMPLEMENTED_STRING;
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|     case X_UNKNOWN:
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| 	return X_UNKNOWN_STRING;
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|     case X_NONE:
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| 	return X_NONE_STRING;
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|     default:
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| 	return X_UNKNOWN_STRING;
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|     }
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| }
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| 
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| void
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| LogVMessageVerb(MessageType type, int verb, const char *format, va_list args)
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| {
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|     const char *type_str;
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|     char tmpFormat[1024];
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|     const char *new_format;
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| 
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|     type_str = LogMessageTypeVerbString(type, verb);
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|     if (!type_str)
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| 	return;
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| 
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|     /* if type_str is not "", prepend it and ' ', to format */
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|     if (type_str[0] == '\0')
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|         new_format = format;
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|     else {
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|         new_format = tmpFormat;
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|         snprintf(tmpFormat, sizeof(tmpFormat), "%s %s", type_str, format);
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|     }
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| 
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|     LogVWrite(verb, new_format, args);
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| }
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| 
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| /* Log message with verbosity level specified. */
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| void
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| LogMessageVerb(MessageType type, int verb, const char *format, ...)
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| {
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|     va_list ap;
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| 
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|     va_start(ap, format);
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|     LogVMessageVerb(type, verb, format, ap);
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|     va_end(ap);
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| }
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| 
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| /* Log a message with the standard verbosity level of 1. */
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| void
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| LogMessage(MessageType type, const char *format, ...)
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| {
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|     va_list ap;
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| 
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|     va_start(ap, format);
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|     LogVMessageVerb(type, 1, format, ap);
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|     va_end(ap);
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| }
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| 
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| 
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| void
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| LogVHdrMessageVerb(MessageType type, int verb, const char *msg_format,
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| 		   va_list msg_args, const char *hdr_format, va_list hdr_args)
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| {
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|     const char *type_str;
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|     char tmpFormat[1024];
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|     char *tmpFormat_end = &tmpFormat[sizeof(tmpFormat)];
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|     char *p;
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|     int left;
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| 
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|     type_str = LogMessageTypeVerbString(type, verb);
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|     if (!type_str)
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| 	return;
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| 
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|     /* if type_str != "", copy it and ' ' to tmpFormat; set p after ' ' */
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|     p = tmpFormat;
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|     if (type_str[0] != '\0')
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| 	p += snprintf(tmpFormat, sizeof(tmpFormat), "%s ", type_str);
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| 
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|     /* append as much of hdr as fits after type_str (if there was one) */
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|     left = tmpFormat_end - p;
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|     if (left > 1)
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| 	p += vsnprintf(p, left, hdr_format, hdr_args);
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| 
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|     /* append as much of msg_format as will fit after hdr */
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|     left = tmpFormat_end - p;
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|     if (left > 1)
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| 	snprintf(p, left, "%s", msg_format);
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| 
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|     LogVWrite(verb, tmpFormat, msg_args);
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| }
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| 
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| void
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| LogHdrMessageVerb(MessageType type, int verb, const char *msg_format,
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| 		  va_list msg_args, const char *hdr_format, ...)
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| {
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|     va_list hdr_args;
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| 
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|     va_start(hdr_args, hdr_format);
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|     LogVHdrMessageVerb(type, verb, msg_format, msg_args, hdr_format, hdr_args);
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|     va_end(hdr_args);
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| }
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| 
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| void
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| LogHdrMessage(MessageType type, const char *msg_format, va_list msg_args,
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| 	      const char *hdr_format, ...)
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| {
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|     va_list hdr_args;
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| 
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|     va_start(hdr_args, hdr_format);
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|     LogVHdrMessageVerb(type, 1, msg_format, msg_args, hdr_format, hdr_args);
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|     va_end(hdr_args);
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| }
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| 
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| void
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| AbortServer(void) _X_NORETURN;
 | |
| 
 | |
| void
 | |
| AbortServer(void)
 | |
| {
 | |
| #ifdef XF86BIGFONT
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|     XF86BigfontCleanup();
 | |
| #endif
 | |
|     CloseWellKnownConnections();
 | |
|     OsCleanup(TRUE);
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|     CloseDownDevices();
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|     AbortDDX(EXIT_ERR_ABORT);
 | |
|     fflush(stderr);
 | |
|     if (CoreDump)
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| 	OsAbort();
 | |
|     exit (1);
 | |
| }
 | |
| 
 | |
| #define AUDIT_PREFIX "AUDIT: %s: %ld: "
 | |
| #ifndef AUDIT_TIMEOUT
 | |
| #define AUDIT_TIMEOUT ((CARD32)(120 * 1000)) /* 2 mn */
 | |
| #endif
 | |
| 
 | |
| static int nrepeat = 0;
 | |
| static int oldlen = -1;
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| static OsTimerPtr auditTimer = NULL;
 | |
| 
 | |
| void
 | |
| FreeAuditTimer(void)
 | |
| {
 | |
|     if (auditTimer != NULL) {
 | |
| 	/* Force output of pending messages */
 | |
| 	TimerForce(auditTimer);
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| 	TimerFree(auditTimer);
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| 	auditTimer = NULL;
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|     }
 | |
| }
 | |
| 
 | |
| static char *
 | |
| AuditPrefix(void)
 | |
| {
 | |
|     time_t tm;
 | |
|     char *autime, *s;
 | |
|     char *tmpBuf;
 | |
|     int len;
 | |
| 
 | |
|     time(&tm);
 | |
|     autime = ctime(&tm);
 | |
|     if ((s = strchr(autime, '\n')))
 | |
| 	*s = '\0';
 | |
|     len = strlen(AUDIT_PREFIX) + strlen(autime) + 10 + 1;
 | |
|     tmpBuf = malloc(len);
 | |
|     if (!tmpBuf)
 | |
| 	return NULL;
 | |
|     snprintf(tmpBuf, len, AUDIT_PREFIX, autime, (unsigned long)getpid());
 | |
|     return tmpBuf;
 | |
| }
 | |
| 
 | |
| void
 | |
| AuditF(const char * f, ...)
 | |
| {
 | |
|     va_list args;
 | |
| 
 | |
|     va_start(args, f);
 | |
| 
 | |
|     VAuditF(f, args);
 | |
|     va_end(args);
 | |
| }
 | |
| 
 | |
| static CARD32
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| AuditFlush(OsTimerPtr timer, CARD32 now, pointer arg)
 | |
| {
 | |
|     char *prefix;
 | |
| 
 | |
|     if (nrepeat > 0) {
 | |
| 	prefix = AuditPrefix();
 | |
| 	ErrorF("%slast message repeated %d times\n",
 | |
| 	       prefix != NULL ? prefix : "", nrepeat);
 | |
| 	nrepeat = 0;
 | |
| 	free(prefix);
 | |
| 	return AUDIT_TIMEOUT;
 | |
|     } else {
 | |
| 	/* if the timer expires without anything to print, flush the message */
 | |
| 	oldlen = -1;
 | |
| 	return 0;
 | |
|     }
 | |
| }
 | |
| 
 | |
| void
 | |
| VAuditF(const char *f, va_list args)
 | |
| {
 | |
|     char *prefix;
 | |
|     char buf[1024];
 | |
|     int len;
 | |
|     static char oldbuf[1024];
 | |
| 
 | |
|     prefix = AuditPrefix();
 | |
|     len = vsnprintf(buf, sizeof(buf), f, args);
 | |
| 
 | |
|     if (len == oldlen && strcmp(buf, oldbuf) == 0) {
 | |
| 	/* Message already seen */
 | |
| 	nrepeat++;
 | |
|     } else {
 | |
| 	/* new message */
 | |
| 	if (auditTimer != NULL)
 | |
| 	    TimerForce(auditTimer);
 | |
| 	ErrorF("%s%s", prefix != NULL ? prefix : "", buf);
 | |
| 	strlcpy(oldbuf, buf, sizeof(oldbuf));
 | |
| 	oldlen = len;
 | |
| 	nrepeat = 0;
 | |
| 	auditTimer = TimerSet(auditTimer, 0, AUDIT_TIMEOUT, AuditFlush, NULL);
 | |
|     }
 | |
|     free(prefix);
 | |
| }
 | |
| 
 | |
| void
 | |
| FatalError(const char *f, ...)
 | |
| {
 | |
|     va_list args;
 | |
|     static Bool beenhere = FALSE;
 | |
| 
 | |
|     if (beenhere)
 | |
| 	ErrorF("\nFatalError re-entered, aborting\n");
 | |
|     else
 | |
| 	ErrorF("\nFatal server error:\n");
 | |
| 
 | |
|     va_start(args, f);
 | |
| #ifdef __APPLE__
 | |
|     {
 | |
|         va_list args2;
 | |
|         va_copy(args2, args);
 | |
|         (void)vsnprintf(__crashreporter_info_buff__, sizeof(__crashreporter_info_buff__), f, args2);
 | |
|         va_end(args2);
 | |
|     }
 | |
| #endif
 | |
|     VErrorF(f, args);
 | |
|     va_end(args);
 | |
|     ErrorF("\n");
 | |
|     if (!beenhere)
 | |
| 	OsVendorFatalError();
 | |
|     if (!beenhere) {
 | |
| 	beenhere = TRUE;
 | |
| 	AbortServer();
 | |
|     } else
 | |
| 	OsAbort();
 | |
|     /*NOTREACHED*/
 | |
| }
 | |
| 
 | |
| void
 | |
| VErrorF(const char *f, va_list args)
 | |
| {
 | |
| #ifdef DDXOSVERRORF
 | |
|     if (OsVendorVErrorFProc)
 | |
| 	OsVendorVErrorFProc(f, args);
 | |
|     else
 | |
| 	LogVWrite(-1, f, args);
 | |
| #else
 | |
|     LogVWrite(-1, f, args);
 | |
| #endif
 | |
| }
 | |
| 
 | |
| void
 | |
| ErrorF(const char * f, ...)
 | |
| {
 | |
|     va_list args;
 | |
| 
 | |
|     va_start(args, f);
 | |
|     VErrorF(f, args);
 | |
|     va_end(args);
 | |
| }
 | |
| 
 | |
| void
 | |
| LogPrintMarkers(void)
 | |
| {
 | |
|     /* Show what the message marker symbols mean. */
 | |
|     LogWrite(0, "Markers: ");
 | |
|     LogMessageVerb(X_PROBED, 0, "probed, ");
 | |
|     LogMessageVerb(X_CONFIG, 0, "from config file, ");
 | |
|     LogMessageVerb(X_DEFAULT, 0, "default setting,\n\t");
 | |
|     LogMessageVerb(X_CMDLINE, 0, "from command line, ");
 | |
|     LogMessageVerb(X_NOTICE, 0, "notice, ");
 | |
|     LogMessageVerb(X_INFO, 0, "informational,\n\t");
 | |
|     LogMessageVerb(X_WARNING, 0, "warning, ");
 | |
|     LogMessageVerb(X_ERROR, 0, "error, ");
 | |
|     LogMessageVerb(X_NOT_IMPLEMENTED, 0, "not implemented, ");
 | |
|     LogMessageVerb(X_UNKNOWN, 0, "unknown.\n");
 | |
| }
 | |
| 
 |