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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
// -=- Logger_file.cxx - Logger instance for a file
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <os/Mutex.h>
#include <rfb/Logger_file.h>
using namespace rfb;
Logger_File::Logger_File(const char* loggerName)
: Logger(loggerName), indent(13), width(79), m_file(nullptr),
m_lastLogTime(0)
{
m_filename[0] = '\0';
mutex = new os::Mutex();
}
Logger_File::~Logger_File()
{
closeFile();
delete mutex;
}
void Logger_File::write(int /*level*/, const char *logname, const char *message)
{
os::AutoMutex a(mutex);
if (!m_file) {
if (m_filename[0] == '\0')
return;
char bakFilename[PATH_MAX];
if (snprintf(bakFilename, sizeof(bakFilename),
"%s.bak", m_filename) >= (int)sizeof(bakFilename)) {
remove(m_filename);
} else {
remove(bakFilename);
rename(m_filename, bakFilename);
}
m_file = fopen(m_filename, "w+");
if (!m_file) return;
}
time_t current = time(nullptr);
if (current != m_lastLogTime) {
m_lastLogTime = current;
fprintf(m_file, "\n%s", ctime(&m_lastLogTime));
}
fprintf(m_file," %s:", logname);
int column = strlen(logname) + 2;
if (column < indent) {
fprintf(m_file,"%*s",indent-column,"");
column = indent;
}
while (true) {
const char* s = strchr(message, ' ');
int wordLen;
if (s) wordLen = s-message;
else wordLen = strlen(message);
if (column + wordLen + 1 > width) {
fprintf(m_file,"\n%*s",indent,"");
column = indent;
}
fprintf(m_file," %.*s",wordLen,message);
column += wordLen + 1;
message += wordLen + 1;
if (!s) break;
}
fprintf(m_file,"\n");
fflush(m_file);
}
void Logger_File::setFilename(const char* filename)
{
closeFile();
m_filename[0] = '\0';
if (strlen(filename) >= sizeof(m_filename))
return;
strcpy(m_filename, filename);
}
void Logger_File::setFile(FILE* file)
{
closeFile();
m_file = file;
}
void Logger_File::closeFile()
{
if (m_file) {
fclose(m_file);
m_file = nullptr;
}
}
static Logger_File logger("file");
bool rfb::initFileLogger(const char* filename) {
logger.setFilename(filename);
logger.registerLogger();
return true;
}
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