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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* 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.
*
* 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 HOLDER 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.
*/
#pragma once
#include <stdarg.h>
__BEGIN_DECLS
struct syslog_data {
const char* ident;
int logopt;
int facility;
int maskpri;
};
/* The severity of the message. This is ordered. */
#define LOG_EMERG 0
#define LOG_ALERT 1
#define LOG_CRIT 2
#define LOG_ERR 3
#define LOG_WARNING 4
#define LOG_NOTICE 5
#define LOG_INFO 6
#define LOG_DEBUG 7
/* Macros for masking out the priority of a combined priority */
#define LOG_PRIMASK (7)
#define LOG_PRI(priority) ((priority) & LOG_PRIMASK)
/*
* Many of these facilities don't really make sense anymore, but we keep them
* for compatibility purposes.
*/
#define LOG_KERN ( 0 << 3)
#define LOG_USER ( 1 << 3)
#define LOG_MAIL ( 2 << 3)
#define LOG_DAEMON ( 3 << 3)
#define LOG_AUTH ( 4 << 3)
#define LOG_SYSLOG ( 5 << 3)
#define LOG_LPR ( 6 << 3)
#define LOG_NEWS ( 7 << 3)
#define LOG_UUCP ( 8 << 3)
#define LOG_CRON ( 9 << 3)
#define LOG_AUTHPRIV (10 << 3)
#define LOG_FTP (11 << 3)
/* glibc and OpenBSD reserve 12..15 for future system usage, we will too */
#define LOG_LOCAL0 (16 << 3)
#define LOG_LOCAL1 (17 << 3)
#define LOG_LOCAL2 (18 << 3)
#define LOG_LOCAL3 (19 << 3)
#define LOG_LOCAL4 (20 << 3)
#define LOG_LOCAL5 (21 << 3)
#define LOG_LOCAL6 (22 << 3)
#define LOG_LOCAL7 (23 << 3)
#define LOG_NFACILITIES 24
/* Macros to get the facility from a combined priority. */
#define LOG_FACMASK (~7)
#define LOG_FAC(priority) (((priority) & LOG_FACMASK) >> 3)
/* For masking logs, we use these macros with just the priority. */
#define LOG_MASK(priority) (1 << (priority))
#define LOG_UPTO(priority) (LOG_MASK(priority) + (LOG_MASK(priority) - 1))
/* Macro to make a combined priority. */
#define LOG_MAKEPRI(facility, priority) ((facility) | (priority))
/* Include a PID with the message. */
#define LOG_PID (1 << 0)
/* Log on the console. */
#define LOG_CONS (1 << 1)
/* Open the syslogd connection at the first call. (not implemented, default) */
#define LOG_ODELAY (1 << 2)
/* Open the syslogd connection immediately. (not implemented) */
#define LOG_NDELAY (1 << 3)
/* Log to stderr as well. */
#define LOG_PERROR (1 << 4)
/* This is useful to have, but has to be stored weirdly for compatibility. */
#ifdef SYSLOG_NAMES
/* Used for marking the fallback; some applications check for these defines. */
# define INTERNAL_NOPRI 0x10
# define INTERNAL_MARK LOG_MAKEPRI(LOG_NFACILITIES << 3, 0)
typedef struct _code {
/*
* Most Unices define this as char*, but in C++, we have to define it as a
* const char* if we want to use string constants.
*/
const char* c_name;
int c_val;
} CODE;
/*
* The names we use are the same as what glibc and OpenBSD use. We omit
* deprecated values in the hope that no one uses them. Sorted, as well.
*/
CODE prioritynames[] = {
{ "alert", LOG_ALERT },
{ "crit", LOG_CRIT },
{ "debug", LOG_DEBUG },
{ "emerg", LOG_EMERG },
{ "err", LOG_ERR },
{ "info", LOG_INFO },
/* Fallback */
{ "none", INTERNAL_NOPRI },
{ "notice", LOG_NOTICE },
{ "warning", LOG_WARNING },
{ NULL, -1 },
};
CODE facilitynames[] = {
{ "auth", LOG_AUTH },
{ "authpriv", LOG_AUTHPRIV },
{ "cron", LOG_CRON },
{ "daemon", LOG_DAEMON },
{ "ftp", LOG_FTP },
{ "kern", LOG_KERN },
{ "local0", LOG_LOCAL0 },
{ "local1", LOG_LOCAL1 },
{ "local2", LOG_LOCAL2 },
{ "local3", LOG_LOCAL3 },
{ "local4", LOG_LOCAL4 },
{ "local5", LOG_LOCAL5 },
{ "local6", LOG_LOCAL6 },
{ "local7", LOG_LOCAL7 },
{ "lpr", LOG_LPR },
{ "mail", LOG_MAIL },
/* Fallback */
{ "mark", INTERNAL_MARK },
{ "news", LOG_NEWS },
{ "syslog", LOG_SYSLOG },
{ "user", LOG_USER },
{ "uucp", LOG_UUCP },
{ NULL, -1 },
};
#endif
/* The re-entrant versions are an OpenBSD extension we also implement. */
void syslog(int, const char*, ...);
void syslog_r(int, struct syslog_data*, const char*, ...);
void vsyslog(int, const char* message, va_list);
void vsyslog_r(int, struct syslog_data* data, const char* message, va_list);
void openlog(const char*, int, int);
void openlog_r(const char*, int, int, struct syslog_data*);
void closelog(void);
void closelog_r(struct syslog_data*);
int setlogmask(int);
int setlogmask_r(int, struct syslog_data*);
__END_DECLS
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