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/****************************************************************************
* include/syslog.h
*
* Copyright (C) 2013-2014 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __INCLUDE_SYSLOG_H
#define __INCLUDE_SYSLOG_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdarg.h>
#include <stdbool.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* The option argument to openlog() is an OR of any of these:
*
* LOG_CONS - Write directly to system console if there is an error
* while sending to system logger.
* LOG_NDELAY - Open the connection immediately (normally, the connection
* is opened when the first message is logged).
* LOG_NOWAIT - Don't wait for child processes that may have been created
* while logging the message.
* LOG_ODELAY - The converse of LOG_NDELAY; opening of the connection is
* delayed until syslog() is called. (This is the default,
* and need not be specified.)
* LOG_PERROR - (Not in POSIX.1-2001 or POSIX.1-2008.) Print to stderr
* as well (Linux).
* LOG_PID - Include PID with each message.
*/
/* The facility argument is used to specify what type of program is logging
* the message. This lets the configuration file specify that messages from
* different facilities will be handled differently.
*
* LOG_AUTH - Security/authorization messages
* LOG_AUTHPRIV - Security/authorization messages (private)
* LOG_CRON - Clock daemon (cron and at)
* LOG_DAEMON - System daemons without separate facility value
* LOG_FTP - Ftp daemon
* LOG_KERN - Lernel messages (these can't be generated from user
* processes)
* LOG_LOCAL0 through LOG_LOCAL7 - Reserved for local use
* LOG_LPR - Line printer subsystem
* LOG_MAIL - Mail subsystem
* LOG_NEWS - USENET news subsystem
* LOG_SYSLOG - Messages generated internally by syslogd(8)
* LOG_USER - Generic user-level messages (default)
* LOG_UUCP - UUCP subsystem
*/
/* This determines the importance of the message. The levels are, in order
* of decreasing importance:
*/
#define LOG_EMERG 7 /* System is unusable */
#define LOG_ALERT 6 /* Action must be taken immediately */
#define LOG_CRIT 5 /* Critical conditions */
#define LOG_ERR 4 /* Error conditions */
#define LOG_WARNING 3 /* Warning conditions */
#define LOG_NOTICE 2 /* Normal, but significant, condition */
#define LOG_INFO 1 /* Informational message */
#define LOG_DEBUG 0 /* Debug-level message */
/****************************************************************************
* Public Type Declarations
****************************************************************************/
/****************************************************************************
* Public Variables
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#if defined(__cplusplus)
extern "C"
{
#endif
#if 0 /* Not supported */
void openlog(FAR const char *ident, int option, int facility);
void closelog(void);
int setlogmask(int mask);
#endif
/* These low-level debug APIs are provided by the NuttX library. These are
* normally accessed via the macros in debug.h. If the cross-compiler's
* C pre-processor supports a variable number of macro arguments, then those
* macros below will map all debug statements to one or the other of the
* following.
*/
int syslog(int priority, FAR const char *format, ...);
int vsyslog(int priority, FAR const char *src, va_list ap);
#ifdef CONFIG_ARCH_LOWPUTC /* Non-standard */
int lowsyslog(int priority, FAR const char *format, ...);
int lowvsyslog(int priority, FAR const char *src, va_list ap);
#endif
/* Enable or disable syslog output */
#ifdef CONFIG_SYSLOG_ENABLE /* Non-standard */
void syslog_enable(bool enable);
#endif
#if defined(__cplusplus)
}
#endif
#endif /* __INCLUDE_SYSLOG_H */
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