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제 목 : syslog의 Priority와 Facility 값
작성자 : 좋은진호(truefeel, http://coffeenix.net/ )
작성일 : 2012.1.9(월)
/usr/include/sys/syslog.h (FreeBSD는 /usr/include/syslog.h)파일을 보고 값을 계산했다.
로깅 설정시 숫자로 설정해야할 경우에 사용
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/* 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 significant condition */
#define LOG_INFO 6 /* informational */
#define LOG_DEBUG 7 /* debug-level messages */
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LOG_EMERG = 0
LOG_ALERT = 1
LOG_CRIT = 2
LOG_ERR = 3
LOG_WARNING = 4
LOG_NOTICE = 5
LOG_INFO = 6
LOG_DEBUG = 7
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/* 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 */
#define LOG_CRON (9<<3) /* clock daemon */
#define LOG_AUTHPRIV (10<<3) /* security/authorization messages (private) */
#define LOG_FTP (11<<3) /* ftp daemon */
/* 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 */
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위에서 <<3은 왼쪽으로 3번 shift하라는 것이다.
예를들어 LOG_LOCAL1의 17<<3 은 17(2진수 10001)을 왼쪽으로 3번 shift한다. 즉 2진수 10001000 = 136
LOG_KERN = 0
LOG_USER = 8
LOG_MAIL = 16
LOG_DAEMON = 24
LOG_AUTH = 32
LOG_SYSLOG = 40
LOG_LPR = 48
LOG_NEWS = 56
LOG_UUCP = 64
LOG_CRON = 72
LOG_AUTHPRIV = 80
LOG_FTP = 88
LOG_LOCAL0 = 128
LOG_LOCAL1 = 136
LOG_LOCAL2 = 144
LOG_LOCAL3 = 152
LOG_LOCAL4 = 160
LOG_LOCAL5 = 168
LOG_LOCAL6 = 176
LOG_LOCAL7 = 184
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/*
* 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 /* don't wait for console forks: DEPRECATED */
#define LOG_PERROR 0x20 /* log to stderr as well */
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LOG_PID = 1
LOG_CONS = 2
LOG_ODELAY = 4
LOG_NDELAY = 8
LOG_NOWAIT = 16
LOG_PERROR = 32
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http://coffeenix.net/ )