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- /*
- * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
- #pragma once
- #include <stdarg.h>
- #include <sys/cdefs.h>
- __BEGIN_DECLS
- struct syslog_data {
- char const* 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)
- /* Don't wait for child processes created while logging the message. */
- #define LOG_NOWAIT (1 << 5)
- /* 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.
- */
- char const* 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, char const*, ...);
- void syslog_r(int, struct syslog_data*, char const*, ...);
- void vsyslog(int, char const* message, va_list);
- void vsyslog_r(int, struct syslog_data* data, char const* message, va_list);
- void openlog(char const*, int, int);
- void openlog_r(char const*, 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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