syslog.h
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上传日期:2007-04-14
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- /*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved. The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
- *
- * @(#)syslog.h 7.8 (Berkeley) 5/26/88
- */
- #ifndef SYSLOG_H
- #define SYSLOG_H
- /* Added __[BEGIN/END]_DECLS so this file would work with C++. (mevans) */
- #include <sys/cdefs.h>
- #include <stdarg.h>
- /* Discipline: openlog(), closelog(), and setlogmask() are not thread-safe
- * and should only be called when other threads will not be calling syslog
- * functions. syslog() and vsyslog() are thread-safe and may be called
- * asynchronously, even if openlog() has not been called. */
- /*
- * Facility codes
- */
- #define LOG_KERN (0<<3) /* kernel messages */
- #define LOG_USER (1<<3) /* random user-level messages */
- #define LOG_MAIL (2<<3) /* mail system */
- #define LOG_DAEMON (3<<3) /* system daemons */
- #define LOG_AUTH (4<<3) /* security/authorization messages */
- #define LOG_SYSLOG (5<<3) /* messages generated internally by syslogd */
- #define LOG_LPR (6<<3) /* line printer subsystem */
- #define LOG_NEWS (7<<3) /* network news subsystem */
- #define LOG_UUCP (8<<3) /* UUCP subsystem */
- /* other codes through 15 reserved for system use */
- #define LOG_LOCAL0 (16<<3) /* reserved for local use */
- #define LOG_LOCAL1 (17<<3) /* reserved for local use */
- #define LOG_LOCAL2 (18<<3) /* reserved for local use */
- #define LOG_LOCAL3 (19<<3) /* reserved for local use */
- #define LOG_LOCAL4 (20<<3) /* reserved for local use */
- #define LOG_LOCAL5 (21<<3) /* reserved for local use */
- #define LOG_LOCAL6 (22<<3) /* reserved for local use */
- #define LOG_LOCAL7 (23<<3) /* reserved for local use */
- #define LOG_NFACILITIES 24 /* maximum number of facilities */
- #define LOG_FACMASK 0x03f8 /* mask to extract facility part */
- #define LOG_FAC(p) (((p) & LOG_FACMASK) >> 3) /* facility of pri */
- /*
- * Priorities (these are ordered)
- */
- #define LOG_EMERG 0 /* system is unusable */
- #define LOG_ALERT 1 /* action must be taken immediately */
- #define LOG_CRIT 2 /* critical conditions */
- #define LOG_ERR 3 /* error conditions */
- #define LOG_WARNING 4 /* warning conditions */
- #define LOG_NOTICE 5 /* normal but signification condition */
- #define LOG_INFO 6 /* informational */
- #define LOG_DEBUG 7 /* debug-level messages */
- #define LOG_PRIMASK 0x0007 /* mask to extract priority part (internal) */
- #define LOG_PRI(p) ((p) & LOG_PRIMASK) /* extract priority */
- #define LOG_MAKEPRI(fac, pri) (((fac) << 3) | (pri))
- #ifdef KERNEL
- #define LOG_PRINTF -1 /* pseudo-priority to indicate use of printf */
- #endif
- /*
- * arguments to setlogmask.
- */
- #define LOG_MASK(pri) (1 << (pri)) /* mask for one priority */
- #define LOG_UPTO(pri) ((1 << ((pri)+1)) - 1) /* all priorities through pri */
- /*
- * Option flags for openlog.
- *
- * LOG_ODELAY no longer does anything; LOG_NDELAY is the
- * inverse of what it used to be.
- */
- #define LOG_PID 0x01 /* log the pid with each message */
- #define LOG_CONS 0x02 /* log on the console if errors in sending */
- #define LOG_ODELAY 0x04 /* delay open until first syslog() (default) */
- #define LOG_NDELAY 0x08 /* don't delay open */
- #define LOG_NOWAIT 0x10 /* if forking to log on console, don't wait() */
- __BEGIN_DECLS
- /* Syslogging functions. */
- void syslog(int pri, char *fmt, ...);
- void vsyslog(int pri, char *fmt, va_list args);
- void openlog(char *ident, int logstat, int logfac);
- void closelog(void);
- int setlogmask(int pmask);
- __END_DECLS
- #endif