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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2014
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef LOG_H
#define LOG_H
#include <pthread.h>
#include "arch.h"
/* logging buffer size */
#define LOG_BUFFER_SIZE 1024
/* logging levels */
enum logLevels
{
LOG_LEVEL_ALWAYS = 0,
LOG_LEVEL_ERROR,
LOG_LEVEL_WARNING,
LOG_LEVEL_INFO,
LOG_LEVEL_DEBUG
};
/* startup return values */
enum logReturns
{
LOG_STARTUP_OK = 0,
LOG_ERROR_MALLOC,
LOG_ERROR_NULL_FILE,
LOG_ERROR_FILE_OPEN,
LOG_ERROR_NO_CFG,
LOG_ERROR_FILE_NOT_OPEN,
LOG_GENERAL_ERROR
};
#define SESMAN_CFG_LOGGING "Logging"
#define SESMAN_CFG_LOG_FILE "LogFile"
#define SESMAN_CFG_LOG_LEVEL "LogLevel"
#define SESMAN_CFG_LOG_ENABLE_SYSLOG "EnableSyslog"
#define SESMAN_CFG_LOG_SYSLOG_LEVEL "SyslogLevel"
/* enable threading */
/*#define LOG_ENABLE_THREAD*/
#ifdef DEBUG
#define LOG_DBG(args...) log_message(LOG_LEVEL_DEBUG, args);
#else
#define LOG_DBG(args...)
#endif
struct log_config
{
const char *program_name;
char *log_file;
int fd;
enum logLevels log_level;
int enable_syslog;
enum logLevels syslog_level;
pthread_mutex_t log_lock;
pthread_mutexattr_t log_lock_attr;
};
/* internal functions, only used in log.c if this ifdef is defined.*/
#ifdef LOGINTERNALSTUFF
/**
*
* @brief Starts the logging subsystem
* @param l_cfg logging system configuration
* @return
*
*/
enum logReturns DEFAULT_CC
internal_log_start(struct log_config *l_cfg);
/**
*
* @brief Shuts down the logging subsystem
* @param l_cfg pointer to the logging subsystem to stop
*
*/
enum logReturns DEFAULT_CC
internal_log_end(struct log_config *l_cfg);
/**
* Converts a log level to a string
* @param lvl, the loglevel
* @param str pointer where the string will be stored.
*/
void DEFAULT_CC
internal_log_lvl2str(const enum logLevels lvl, char *str);
/**
*
* @brief Converts a string to a log level
* @param s The string to convert
* @return The corresponding level or LOG_LEVEL_DEBUG if error
*
*/
enum logLevels DEFAULT_CC
internal_log_text2level(const char *s);
/**
* A function that init our struct that holds all state and
* also init its content.
* @return LOG_STARTUP_OK or LOG_ERROR_MALLOC
*/
enum logReturns DEFAULT_CC
internalInitAndAllocStruct(void);
/**
* Read configuration from a file and store the values in lists.
* @param file
* @param lc
* @param param_n
* @param param_v
* @param applicationName, the application name used in the log events.
* @return
*/
enum logReturns DEFAULT_CC
internal_config_read_logging(int file, struct log_config *lc,
struct list *param_n,
struct list *param_v,
const char *applicationName);
/*End of internal functions*/
#endif
/**
* This function initialize the log facilities according to the configuration
* file, that is described by the in parameter.
* @param iniFile
* @param applicationName, the name that is used in the log for the running application
* @return LOG_STARTUP_OK on success
*/
enum logReturns DEFAULT_CC
log_start(const char *iniFile, const char *applicationName);
/**
* An alternative log_start where the caller gives the params directly.
* @param iniParams
* @return
*/
enum logReturns DEFAULT_CC
log_start_from_param(const struct log_config *iniParams);
/**
* Function that terminates all logging
* @return
*/
enum logReturns DEFAULT_CC
log_end(void);
/**
* the log function that all files use to log an event.
* @param lvl, the loglevel
* @param msg, the logtext.
* @param ...
* @return
*/
enum logReturns DEFAULT_CC
log_message(const enum logLevels lvl, const char *msg, ...) printflike(2, 3);
/**
* This function returns the configured file name for the logfile
* @param replybuf the buffer where the reply is stored
* @param bufsize how big is the reply buffer.
* @return
*/
char *getLogFile(char *replybuf, int bufsize);
#endif
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