diff options
Diffstat (limited to 'xorg-server/os')
| -rw-r--r-- | xorg-server/os/log.c | 1206 | ||||
| -rw-r--r-- | xorg-server/os/utils.c | 12 |
2 files changed, 615 insertions, 603 deletions
diff --git a/xorg-server/os/log.c b/xorg-server/os/log.c index 20cd74af6..0002e59f0 100644 --- a/xorg-server/os/log.c +++ b/xorg-server/os/log.c @@ -1,603 +1,603 @@ -/*
-
-Copyright 1987, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-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 OPEN GROUP 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 Open Group 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 Open Group.
-
-
-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.
-
-*/
-
-/*
- * Copyright (c) 1997-2003 by The XFree86 Project, Inc.
- *
- * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 copyright holder(s)
- * and author(s) 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 copyright holder(s) and author(s).
- */
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/Xos.h>
-#include <stdio.h>
-#include <time.h>
-#include <sys/stat.h>
-#include <stdarg.h>
-#include <stdlib.h> /* for malloc() */
-#include <errno.h>
-
-#include "input.h"
-#include "site.h"
-#include "opaque.h"
-
-#ifdef WIN32
-#include <process.h>
-#define getpid(x) _getpid(x)
-#endif
-
-#ifdef XF86BIGFONT
-#define _XF86BIGFONT_SERVER_
-#include <X11/extensions/xf86bigfont.h>
-#endif
-
-#ifdef DDXOSVERRORF
-void (*OsVendorVErrorFProc)(const char *, va_list args) = NULL;
-#endif
-
-static FILE *logFile = NULL;
-static Bool logFlush = FALSE;
-static Bool logSync = FALSE;
-static int logVerbosity = DEFAULT_LOG_VERBOSITY;
-static int logFileVerbosity = DEFAULT_LOG_FILE_VERBOSITY;
-
-/* Buffer to information logged before the log file is opened. */
-static char *saveBuffer = NULL;
-static int bufferSize = 0, bufferUnused = 0, bufferPos = 0;
-static Bool needBuffer = TRUE;
-
-/* Prefix strings for log messages. */
-#ifndef X_UNKNOWN_STRING
-#define X_UNKNOWN_STRING "(\?\?)"
-#endif
-#ifndef X_PROBE_STRING
-#define X_PROBE_STRING "(--)"
-#endif
-#ifndef X_CONFIG_STRING
-#define X_CONFIG_STRING "(**)"
-#endif
-#ifndef X_DEFAULT_STRING
-#define X_DEFAULT_STRING "(==)"
-#endif
-#ifndef X_CMDLINE_STRING
-#define X_CMDLINE_STRING "(++)"
-#endif
-#ifndef X_NOTICE_STRING
-#define X_NOTICE_STRING "(!!)"
-#endif
-#ifndef X_ERROR_STRING
-#define X_ERROR_STRING "(EE)"
-#endif
-#ifndef X_WARNING_STRING
-#define X_WARNING_STRING "(WW)"
-#endif
-#ifndef X_INFO_STRING
-#define X_INFO_STRING "(II)"
-#endif
-#ifndef X_NOT_IMPLEMENTED_STRING
-#define X_NOT_IMPLEMENTED_STRING "(NI)"
-#endif
-
-/*
- * LogInit is called to start logging to a file. It is also called (with
- * NULL arguments) when logging to a file is not wanted. It must always be
- * called, otherwise log messages will continue to accumulate in a buffer.
- *
- * %s, if present in the fname or backup strings, is expanded to the display
- * string.
- */
-
-const char *
-LogInit(const char *fname, const char *backup)
-{
- char *logFileName = NULL;
-
- if (fname && *fname) {
- /* xalloc() can't be used yet. */
- logFileName = malloc(strlen(fname) + strlen(display) + 1);
- if (!logFileName)
- FatalError("Cannot allocate space for the log file name\n");
- sprintf(logFileName, fname, display);
-
- if (backup && *backup) {
- struct stat buf;
-
- if (!stat(logFileName, &buf) && S_ISREG(buf.st_mode)) {
- char *suffix;
- char *oldLog;
-
- oldLog = malloc(strlen(logFileName) + strlen(backup) +
- strlen(display) + 1);
- suffix = malloc(strlen(backup) + strlen(display) + 1);
- if (!oldLog || !suffix)
- FatalError("Cannot allocate space for the log file name\n");
- sprintf(suffix, backup, display);
- sprintf(oldLog, "%s%s", logFileName, suffix);
- free(suffix);
- if (rename(logFileName, oldLog) == -1) {
- FatalError("Cannot move old log file \"%s\" to \"%s\"\n",
- logFileName, oldLog);
- }
- free(oldLog);
- }
- }
- if ((logFile = fopen(logFileName, "w")) == NULL)
- FatalError("Cannot open log file \"%s\"\n", logFileName);
- setvbuf(logFile, NULL, _IONBF, 0);
-
- /* Flush saved log information. */
- if (saveBuffer && bufferSize > 0) {
- fwrite(saveBuffer, bufferPos, 1, logFile);
- fflush(logFile);
-#ifndef WIN32
- fsync(fileno(logFile));
-#endif
- }
- }
-
- /*
- * Unconditionally free the buffer, and flag that the buffer is no longer
- * needed.
- */
- if (saveBuffer && bufferSize > 0) {
- free(saveBuffer); /* Must be free(), not xfree() */
- saveBuffer = NULL;
- bufferSize = 0;
- }
- needBuffer = FALSE;
-
- return logFileName;
-}
-
-void
-LogClose(void)
-{
- if (logFile) {
- fclose(logFile);
- logFile = NULL;
- }
-}
-
-Bool
-LogSetParameter(LogParameter param, int value)
-{
- switch (param) {
- case XLOG_FLUSH:
- logFlush = value ? TRUE : FALSE;
- return TRUE;
- case XLOG_SYNC:
- logSync = value ? TRUE : FALSE;
- return TRUE;
- case XLOG_VERBOSITY:
- logVerbosity = value;
- return TRUE;
- case XLOG_FILE_VERBOSITY:
- logFileVerbosity = value;
- return TRUE;
- default:
- return FALSE;
- }
-}
-
-/* This function does the actual log message writes. */
-
-void
-LogVWrite(int verb, const char *f, va_list args)
-{
- static char tmpBuffer[1024];
- int len = 0;
- static Bool newline = TRUE;
-
- if (newline) {
- sprintf(tmpBuffer, "[%10.3f] ", GetTimeInMillis() / 1000.0);
- len = strlen(tmpBuffer);
- if (logFile)
- fwrite(tmpBuffer, len, 1, logFile);
- }
-
- /*
- * Since a va_list can only be processed once, write the string to a
- * buffer, and then write the buffer out to the appropriate output
- * stream(s).
- */
- if (verb < 0 || logFileVerbosity >= verb || logVerbosity >= verb) {
- vsnprintf(tmpBuffer, sizeof(tmpBuffer), f, args);
- len = strlen(tmpBuffer);
- }
- newline = (tmpBuffer[len-1] == '\n');
- if ((verb < 0 || logVerbosity >= verb) && len > 0)
- fwrite(tmpBuffer, len, 1, stderr);
- if ((verb < 0 || logFileVerbosity >= verb) && len > 0) {
- if (logFile) {
- fwrite(tmpBuffer, len, 1, logFile);
- if (logFlush) {
- fflush(logFile);
-#ifndef WIN32
- if (logSync)
- fsync(fileno(logFile));
-#endif
- }
- } else if (needBuffer) {
- /*
- * Note, this code is used before OsInit() has been called, so
- * xalloc() and friends can't be used.
- */
- if (len > bufferUnused) {
- bufferSize += 1024;
- bufferUnused += 1024;
- if (saveBuffer)
- saveBuffer = realloc(saveBuffer, bufferSize);
- else
- saveBuffer = malloc(bufferSize);
- if (!saveBuffer)
- FatalError("realloc() failed while saving log messages\n");
- }
- bufferUnused -= len;
- memcpy(saveBuffer + bufferPos, tmpBuffer, len);
- bufferPos += len;
- }
- }
-}
-
-void
-LogWrite(int verb, const char *f, ...)
-{
- va_list args;
-
- va_start(args, f);
- LogVWrite(verb, f, args);
- va_end(args);
-}
-
-void
-LogVMessageVerb(MessageType type, int verb, const char *format, va_list args)
-{
- const char *s = X_UNKNOWN_STRING;
- char tmpBuf[1024];
-
- /* Ignore verbosity for X_ERROR */
- if (logVerbosity >= verb || logFileVerbosity >= verb || type == X_ERROR) {
- switch (type) {
- case X_PROBED:
- s = X_PROBE_STRING;
- break;
- case X_CONFIG:
- s = X_CONFIG_STRING;
- break;
- case X_DEFAULT:
- s = X_DEFAULT_STRING;
- break;
- case X_CMDLINE:
- s = X_CMDLINE_STRING;
- break;
- case X_NOTICE:
- s = X_NOTICE_STRING;
- break;
- case X_ERROR:
- s = X_ERROR_STRING;
- if (verb > 0)
- verb = 0;
- break;
- case X_WARNING:
- s = X_WARNING_STRING;
- break;
- case X_INFO:
- s = X_INFO_STRING;
- break;
- case X_NOT_IMPLEMENTED:
- s = X_NOT_IMPLEMENTED_STRING;
- break;
- case X_UNKNOWN:
- s = X_UNKNOWN_STRING;
- break;
- case X_NONE:
- s = NULL;
- break;
- }
-
- /* if s is not NULL we need a space before format */
- snprintf(tmpBuf, sizeof(tmpBuf), "%s%s%s", s ? s : "",
- s ? " " : "",
- format);
- LogVWrite(verb, tmpBuf, args);
- }
-}
-
-/* Log message with verbosity level specified. */
-void
-LogMessageVerb(MessageType type, int verb, const char *format, ...)
-{
- va_list ap;
-
- va_start(ap, format);
- LogVMessageVerb(type, verb, format, ap);
- va_end(ap);
-}
-
-/* Log a message with the standard verbosity level of 1. */
-void
-LogMessage(MessageType type, const char *format, ...)
-{
- va_list ap;
-
- va_start(ap, format);
- LogVMessageVerb(type, 1, format, ap);
- va_end(ap);
-}
-
-#ifdef __GNUC__
-void AbortServer(void) __attribute__((noreturn));
-#endif
-
-void
-AbortServer(void)
-{
-#ifdef XF86BIGFONT
- XF86BigfontCleanup();
-#endif
- CloseWellKnownConnections();
- OsCleanup(TRUE);
- CloseDownDevices();
- AbortDDX();
- fflush(stderr);
- if (CoreDump)
- abort();
- 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;
-static OsTimerPtr auditTimer = NULL;
-
-void
-FreeAuditTimer(void)
-{
- if (auditTimer != NULL) {
- /* Force output of pending messages */
- TimerForce(auditTimer);
- TimerFree(auditTimer);
- auditTimer = NULL;
- }
-}
-
-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
-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;
- if (prefix != NULL)
- 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);
- }
- if (prefix != 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);
- VErrorF(f, args);
- va_end(args);
- ErrorF("\n");
- if (!beenhere)
- OsVendorFatalError();
- if (!beenhere) {
- beenhere = TRUE;
- AbortServer();
- } else
- abort();
- /*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);
-}
-
-/* A perror() workalike. */
-
-void
-Error(char *str)
-{
- char *err = NULL;
- int saveErrno = errno;
-
- if (str) {
- err = malloc(strlen(strerror(saveErrno)) + strlen(str) + 2 + 1);
- if (!err)
- return;
- sprintf(err, "%s: ", str);
- strcat(err, strerror(saveErrno));
- LogWrite(-1, "%s", err);
- free(err);
- } else
- LogWrite(-1, "%s", strerror(saveErrno));
-}
-
-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");
-}
-
+/* + +Copyright 1987, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 OPEN GROUP 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 Open Group 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 Open Group. + + +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. + +*/ + +/* + * Copyright (c) 1997-2003 by The XFree86 Project, Inc. + * + * 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 copyright holder(s) + * and author(s) 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 copyright holder(s) and author(s). + */ + + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <X11/Xos.h> +#include <stdio.h> +#include <time.h> +#include <sys/stat.h> +#include <stdarg.h> +#include <stdlib.h> /* for malloc() */ +#include <errno.h> + +#include "input.h" +#include "site.h" +#include "opaque.h" + +#ifdef WIN32 +#include <process.h> +#define getpid(x) _getpid(x) +#endif + +#ifdef XF86BIGFONT +#define _XF86BIGFONT_SERVER_ +#include <X11/extensions/xf86bigfont.h> +#endif + +#ifdef DDXOSVERRORF +void (*OsVendorVErrorFProc)(const char *, va_list args) = NULL; +#endif + +static FILE *logFile = NULL; +static Bool logFlush = FALSE; +static Bool logSync = FALSE; +static int logVerbosity = DEFAULT_LOG_VERBOSITY; +static int logFileVerbosity = DEFAULT_LOG_FILE_VERBOSITY; + +/* Buffer to information logged before the log file is opened. */ +static char *saveBuffer = NULL; +static int bufferSize = 0, bufferUnused = 0, bufferPos = 0; +static Bool needBuffer = TRUE; + +/* Prefix strings for log messages. */ +#ifndef X_UNKNOWN_STRING +#define X_UNKNOWN_STRING "(\?\?)" +#endif +#ifndef X_PROBE_STRING +#define X_PROBE_STRING "(--)" +#endif +#ifndef X_CONFIG_STRING +#define X_CONFIG_STRING "(**)" +#endif +#ifndef X_DEFAULT_STRING +#define X_DEFAULT_STRING "(==)" +#endif +#ifndef X_CMDLINE_STRING +#define X_CMDLINE_STRING "(++)" +#endif +#ifndef X_NOTICE_STRING +#define X_NOTICE_STRING "(!!)" +#endif +#ifndef X_ERROR_STRING +#define X_ERROR_STRING "(EE)" +#endif +#ifndef X_WARNING_STRING +#define X_WARNING_STRING "(WW)" +#endif +#ifndef X_INFO_STRING +#define X_INFO_STRING "(II)" +#endif +#ifndef X_NOT_IMPLEMENTED_STRING +#define X_NOT_IMPLEMENTED_STRING "(NI)" +#endif + +/* + * LogInit is called to start logging to a file. It is also called (with + * NULL arguments) when logging to a file is not wanted. It must always be + * called, otherwise log messages will continue to accumulate in a buffer. + * + * %s, if present in the fname or backup strings, is expanded to the display + * string. + */ + +const char * +LogInit(const char *fname, const char *backup) +{ + char *logFileName = NULL; + + if (fname && *fname) { + /* xalloc() can't be used yet. */ + logFileName = malloc(strlen(fname) + strlen(display) + 1); + if (!logFileName) + FatalError("Cannot allocate space for the log file name\n"); + sprintf(logFileName, fname, display); + + if (backup && *backup) { + struct stat buf; + + if (!stat(logFileName, &buf) && S_ISREG(buf.st_mode)) { + char *suffix; + char *oldLog; + + oldLog = malloc(strlen(logFileName) + strlen(backup) + + strlen(display) + 1); + suffix = malloc(strlen(backup) + strlen(display) + 1); + if (!oldLog || !suffix) + FatalError("Cannot allocate space for the log file name\n"); + sprintf(suffix, backup, display); + sprintf(oldLog, "%s%s", logFileName, suffix); + free(suffix); + if (rename(logFileName, oldLog) == -1) { + FatalError("Cannot move old log file \"%s\" to \"%s\"\n", + logFileName, oldLog); + } + free(oldLog); + } + } + if ((logFile = fopen(logFileName, "w")) == NULL) + FatalError("Cannot open log file \"%s\"\n", logFileName); + setvbuf(logFile, NULL, _IONBF, 0); + + /* Flush saved log information. */ + if (saveBuffer && bufferSize > 0) { + fwrite(saveBuffer, bufferPos, 1, logFile); + fflush(logFile); +#ifndef WIN32 + fsync(fileno(logFile)); +#endif + } + } + + /* + * Unconditionally free the buffer, and flag that the buffer is no longer + * needed. + */ + if (saveBuffer && bufferSize > 0) { + free(saveBuffer); /* Must be free(), not xfree() */ + saveBuffer = NULL; + bufferSize = 0; + } + needBuffer = FALSE; + + return logFileName; +} + +void +LogClose(void) +{ + if (logFile) { + fclose(logFile); + logFile = NULL; + } +} + +Bool +LogSetParameter(LogParameter param, int value) +{ + switch (param) { + case XLOG_FLUSH: + logFlush = value ? TRUE : FALSE; + return TRUE; + case XLOG_SYNC: + logSync = value ? TRUE : FALSE; + return TRUE; + case XLOG_VERBOSITY: + logVerbosity = value; + return TRUE; + case XLOG_FILE_VERBOSITY: + logFileVerbosity = value; + return TRUE; + default: + return FALSE; + } +} + +/* This function does the actual log message writes. */ + +void +LogVWrite(int verb, const char *f, va_list args) +{ + static char tmpBuffer[1024]; + int len = 0; + static Bool newline = TRUE; + + if (newline) { + sprintf(tmpBuffer, "[%10.3f] ", GetTimeInMillis() / 1000.0); + len = strlen(tmpBuffer); + if (logFile) + fwrite(tmpBuffer, len, 1, logFile); + } + + /* + * Since a va_list can only be processed once, write the string to a + * buffer, and then write the buffer out to the appropriate output + * stream(s). + */ + if (verb < 0 || logFileVerbosity >= verb || logVerbosity >= verb) { + vsnprintf(tmpBuffer, sizeof(tmpBuffer), f, args); + len = strlen(tmpBuffer); + } + newline = (tmpBuffer[len-1] == '\n'); + if ((verb < 0 || logVerbosity >= verb) && len > 0) + fwrite(tmpBuffer, len, 1, stderr); + if ((verb < 0 || logFileVerbosity >= verb) && len > 0) { + if (logFile) { + fwrite(tmpBuffer, len, 1, logFile); + if (logFlush) { + fflush(logFile); +#ifndef WIN32 + if (logSync) + fsync(fileno(logFile)); +#endif + } + } else if (needBuffer) { + /* + * Note, this code is used before OsInit() has been called, so + * xalloc() and friends can't be used. + */ + if (len > bufferUnused) { + bufferSize += 1024; + bufferUnused += 1024; + if (saveBuffer) + saveBuffer = realloc(saveBuffer, bufferSize); + else + saveBuffer = malloc(bufferSize); + if (!saveBuffer) + FatalError("realloc() failed while saving log messages\n"); + } + bufferUnused -= len; + memcpy(saveBuffer + bufferPos, tmpBuffer, len); + bufferPos += len; + } + } +} + +void +LogWrite(int verb, const char *f, ...) +{ + va_list args; + + va_start(args, f); + LogVWrite(verb, f, args); + va_end(args); +} + +void +LogVMessageVerb(MessageType type, int verb, const char *format, va_list args) +{ + const char *s = X_UNKNOWN_STRING; + char tmpBuf[1024]; + + /* Ignore verbosity for X_ERROR */ + if (logVerbosity >= verb || logFileVerbosity >= verb || type == X_ERROR) { + switch (type) { + case X_PROBED: + s = X_PROBE_STRING; + break; + case X_CONFIG: + s = X_CONFIG_STRING; + break; + case X_DEFAULT: + s = X_DEFAULT_STRING; + break; + case X_CMDLINE: + s = X_CMDLINE_STRING; + break; + case X_NOTICE: + s = X_NOTICE_STRING; + break; + case X_ERROR: + s = X_ERROR_STRING; + if (verb > 0) + verb = 0; + break; + case X_WARNING: + s = X_WARNING_STRING; + break; + case X_INFO: + s = X_INFO_STRING; + break; + case X_NOT_IMPLEMENTED: + s = X_NOT_IMPLEMENTED_STRING; + break; + case X_UNKNOWN: + s = X_UNKNOWN_STRING; + break; + case X_NONE: + s = NULL; + break; + } + + /* if s is not NULL we need a space before format */ + snprintf(tmpBuf, sizeof(tmpBuf), "%s%s%s", s ? s : "", + s ? " " : "", + format); + LogVWrite(verb, tmpBuf, args); + } +} + +/* Log message with verbosity level specified. */ +void +LogMessageVerb(MessageType type, int verb, const char *format, ...) +{ + va_list ap; + + va_start(ap, format); + LogVMessageVerb(type, verb, format, ap); + va_end(ap); +} + +/* Log a message with the standard verbosity level of 1. */ +void +LogMessage(MessageType type, const char *format, ...) +{ + va_list ap; + + va_start(ap, format); + LogVMessageVerb(type, 1, format, ap); + va_end(ap); +} + +#ifdef __GNUC__ +void AbortServer(void) __attribute__((noreturn)); +#endif + +void +AbortServer(void) +{ +#ifdef XF86BIGFONT + XF86BigfontCleanup(); +#endif + CloseWellKnownConnections(); + OsCleanup(TRUE); + CloseDownDevices(); + AbortDDX(); + fflush(stderr); + if (CoreDump) + 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; +static OsTimerPtr auditTimer = NULL; + +void +FreeAuditTimer(void) +{ + if (auditTimer != NULL) { + /* Force output of pending messages */ + TimerForce(auditTimer); + TimerFree(auditTimer); + auditTimer = NULL; + } +} + +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 +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; + if (prefix != NULL) + 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); + } + if (prefix != 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); + 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); +} + +/* A perror() workalike. */ + +void +Error(char *str) +{ + char *err = NULL; + int saveErrno = errno; + + if (str) { + err = malloc(strlen(strerror(saveErrno)) + strlen(str) + 2 + 1); + if (!err) + return; + sprintf(err, "%s: ", str); + strcat(err, strerror(saveErrno)); + LogWrite(-1, "%s", err); + free(err); + } else + LogWrite(-1, "%s", strerror(saveErrno)); +} + +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"); +} + diff --git a/xorg-server/os/utils.c b/xorg-server/os/utils.c index 79399fa53..21e25e066 100644 --- a/xorg-server/os/utils.c +++ b/xorg-server/os/utils.c @@ -1310,6 +1310,18 @@ OsReleaseSignals (void) #endif } +/* + * Pending signals may interfere with core dumping. Provide a + * mechanism to block signals when aborting. + */ + +void +OsAbort (void) +{ + OsBlockSignals(); + abort(); +} + #if !defined(WIN32) /* * "safer" versions of system(3), popen(3) and pclose(3) which give up |