diff options
Diffstat (limited to 'nx-X11/programs/Xserver/os/log.c')
| -rw-r--r-- | nx-X11/programs/Xserver/os/log.c | 716 |
1 files changed, 716 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/os/log.c b/nx-X11/programs/Xserver/os/log.c new file mode 100644 index 000000000..e09943723 --- /dev/null +++ b/nx-X11/programs/Xserver/os/log.c @@ -0,0 +1,716 @@ +/* + +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). + */ + +/* $XFree86: xc/programs/Xserver/os/log.c,v 1.6 2003/11/07 13:45:27 tsi Exp $ */ + +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/. */ +/* */ +/* NX-X11, NX protocol compression and NX extensions to this software */ +/* are copyright of NoMachine. Redistribution and use of the present */ +/* software is allowed according to terms specified in the file LICENSE */ +/* which comes in the source distribution. */ +/* */ +/* Check http://www.nomachine.com/licensing.html for applicability. */ +/* */ +/* NX and NoMachine are trademarks of NoMachine S.r.l. */ +/* */ +/* All rights reserved. */ +/* */ +/**************************************************************************/ + +#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 "site.h" +#include "opaque.h" + +#ifdef WIN32 +#include <process.h> +#define getpid(x) _getpid(x) +#endif + +#ifdef NX_TRANS_SOCKET + +#include "NX.h" + +#endif + +#ifdef DDXOSVERRORF +void (*OsVendorVErrorFProc)(const char *, va_list args) = NULL; +#ifdef NX_TRANS_EXIT +int OsVendorVErrorFFatal = 0; +#endif +#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); +#ifdef __UNIXOS2__ + remove(oldLog); +#endif + 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() +{ + 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; + + /* + * 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); +#ifdef NX_TRANS_EXIT + /* + * Beautify the message. Make the + * first letter uppercase. + */ + + *tmpBuffer = toupper(*tmpBuffer); + + /* + * Remove the trailing newline. + */ + + if (strlen(tmpBuffer) > 0 && + *(tmpBuffer + strlen(tmpBuffer) - 1) == '\n') { + *(tmpBuffer + strlen(tmpBuffer) - 1) = '\0'; + } + + /* + * Remove the trailing full-stop. + */ + + if (strlen(tmpBuffer) > 0 && + *(tmpBuffer + strlen(tmpBuffer) - 1) == '.') { + *(tmpBuffer + strlen(tmpBuffer) - 1) = '\0'; + } +#endif /* #ifdef NX_TRANS_EXIT */ + len = strlen(tmpBuffer); + } + 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 = NULL; + + /* 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; + } + + /* + * Prefix the format string with the message type. We do it this way + * so that LogVWrite() is only called once per message. + */ + if (s) { + tmpBuf = malloc(strlen(format) + strlen(s) + 1 + 1); + /* Silently return if malloc fails here. */ + if (!tmpBuf) + return; + sprintf(tmpBuf, "%s ", s); + strcat(tmpBuf, format); + LogVWrite(verb, tmpBuf, args); + free(tmpBuf); + } else + LogVWrite(verb, format, 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) +{ +#if defined(NX_TRANS_SOCKET) && defined(NX_TRANS_TEST) + fprintf(stderr, "AbortServer: Going to abort the current server.\n"); +#endif + OsCleanup(TRUE); + AbortDDX(); + fflush(stderr); + if (CoreDump) + abort(); +#ifdef NX_TRANS_EXIT +#ifdef NX_TRANS_TEST + fprintf(stderr, "AbortServer: Going to clean up NX resources and exit.\n"); +#endif + NXTransExit(1); +#else /* #ifdef NX_TRANS_EXIT */ + exit (1); +#endif +} + +#ifndef AUDIT_PREFIX +#define AUDIT_PREFIX "AUDIT: %s: %ld %s: " +#endif +#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'; + if ((s = strrchr(argvGlobal[0], '/'))) + s++; + else + s = argvGlobal[0]; + len = strlen(AUDIT_PREFIX) + strlen(autime) + 10 + strlen(s) + 1; + tmpBuf = malloc(len); + if (!tmpBuf) + return NULL; + snprintf(tmpBuf, len, AUDIT_PREFIX, autime, (unsigned long)getpid(), s); + 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 1 + /* XXX Compressing duplicated messages is temporarily disabled to + * work around bugzilla 964: + * https://freedesktop.org/bugzilla/show_bug.cgi?id=964 + */ + ErrorF("%s%s", prefix != NULL ? prefix : "", buf); + oldlen = -1; + nrepeat = 0; +#else + 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); + } +#endif + if (prefix != NULL) + free(prefix); +} + +void +FatalError(const char *f, ...) +{ + va_list args; + static Bool beenhere = FALSE; + +#ifdef NX_TRANS_EXIT + if (beenhere) { + fprintf(stderr, "Error: Aborting session with fatal error function reentered.\n"); + } + else { + /* + * Tell to the log function that this + * is a fatal error. + */ + + OsVendorVErrorFFatal = 1; + + fprintf(stderr, "Error: Aborting session with '"); + + va_start(args, f); + VErrorF(f, args); + va_end(args); + + fprintf(stderr, "'.\n"); + } +#else /* #ifdef NX_TRANS_EXIT */ + 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"); +#endif /* #ifdef NX_TRANS_EXIT */ +#ifdef DDXOSFATALERROR + if (!beenhere) + OsVendorFatalError(); +#endif +#ifdef ABORTONFATALERROR + abort(); +#endif + 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. */ + +#ifndef NEED_STRERROR +#ifdef SYSV +#if !defined(ISC) || defined(ISC202) || defined(ISC22) +#define NEED_STRERROR +#endif +#endif +#endif + +#if defined(NEED_STRERROR) && !defined(strerror) +extern char *sys_errlist[]; +extern int sys_nerr; +#define strerror(n) \ + ((n) >= 0 && (n) < sys_nerr) ? sys_errlist[(n)] : "unknown error" +#endif + +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, err); + } else + LogWrite(-1, strerror(saveErrno)); +} + +void +LogPrintMarkers() +{ + /* Show what the message marker symbols mean. */ + ErrorF("Markers: "); + LogMessageVerb(X_PROBED, -1, "probed, "); + LogMessageVerb(X_CONFIG, -1, "from config file, "); + LogMessageVerb(X_DEFAULT, -1, "default setting,\n\t"); + LogMessageVerb(X_CMDLINE, -1, "from command line, "); + LogMessageVerb(X_NOTICE, -1, "notice, "); + LogMessageVerb(X_INFO, -1, "informational,\n\t"); + LogMessageVerb(X_WARNING, -1, "warning, "); + LogMessageVerb(X_ERROR, -1, "error, "); + LogMessageVerb(X_NOT_IMPLEMENTED, -1, "not implemented, "); + LogMessageVerb(X_UNKNOWN, -1, "unknown.\n"); +} + |