version 2, including all changes.
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SYSLOG |
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!!!SYSLOG |
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NAME |
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SYNOPSIS |
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DESCRIPTION |
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PARAMETERS |
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HISTORY |
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SEE ALSO |
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---- |
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!!NAME |
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closelog, openlog, syslog - send messages to the system logger |
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!!SYNOPSIS |
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__#include __ |
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__void openlog( char__ ''*ident''__, int__ |
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''option''__, int__ |
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''facility''__)__ |
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__void syslog( int__ ''priority''__, char__ |
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''*format''__, ...)__ |
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__void closelog( void )__ |
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!!DESCRIPTION |
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__closelog()__ closes the descriptor being used to write |
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to the system logger. The use of __closelog()__ is |
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optional. |
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__openlog()__ opens a connection to the system logger for |
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a program. The string pointed to by ''ident'' is added to |
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each message, and is typically set to the program name. |
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Values for ''option'' and ''facility'' are given in |
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the next section. The use of __openlog()__ is optional; |
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It will automatically be called by __syslog()__ if |
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necessary, in which case ''ident'' will default to |
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NULL. |
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__syslog()__ generates a log message, which will be |
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distributed by syslogd(8). ''priority'' is a |
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combination of the ''facility'' and the ''level'', |
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values for which are given in the next section. The |
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remaining arguments are a ''format'', as in |
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printf(3) and any arguments required by the |
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''format'', except that the two character %m will be |
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replaced by the error message string (''strerror'') |
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corresponding to the present value of |
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''errno''. |
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!!PARAMETERS |
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This section lists the parameters used to set the values of |
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''option'', ''facility'', and |
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''priority''. |
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__option__ |
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The ''option'' argument to __openlog()__ is an OR of |
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any of these: |
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__LOG_CONS__ |
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write directly to system console if there is an error while |
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sending to system logger |
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__LOG_NDELAY__ |
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open the connection immediately (normally, the connection is |
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opened when the first message is logged) |
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__LOG_PERROR__ |
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print to stderr as well |
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__LOG_PID__ |
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include PID with each message |
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__facility__ |
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The ''facility'' argument is used to specify what type of |
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program is logging the message. This lets the configuration |
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file specify that messages from different facilities will be |
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handled differently. |
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__LOG_AUTH__ |
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security/authorization messages (DEPRECATED Use |
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__LOG_AUTHPRIV__ instead) |
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__LOG_AUTHPRIV__ |
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security/authorization messages (private) |
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__LOG_CRON__ |
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clock daemon (__cron__ and __at__) |
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__LOG_DAEMON__ |
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system daemons without separate facility value |
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__LOG_FTP__ |
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ftp daemon |
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__LOG_KERN__ |
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kernel messages |
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__LOG_LOCAL0__ through __LOG_LOCAL7__ |
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reserved for local use |
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__LOG_LPR__ |
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line printer subsystem |
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__LOG_MAIL__ |
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mail subsystem |
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__LOG_NEWS__ |
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USENET news subsystem |
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__LOG_SYSLOG__ |
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messages generated internally by __syslogd__ |
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__LOG_USER__(default) |
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generic user-level messages |
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__LOG_UUCP__ |
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UUCP subsystem |
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__level__ |
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This determines the importance of the message. The levels |
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are, in order of decreasing importance: |
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__LOG_EMERG__ |
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system is unusable |
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__LOG_ALERT__ |
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action must be taken immediately |
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__LOG_CRIT__ |
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critical conditions |
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__LOG_ERR__ |
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error conditions |
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__LOG_WARNING__ |
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warning conditions |
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__LOG_NOTICE__ |
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normal, but significant, condition |
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__LOG_INFO__ |
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informational message |
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__LOG_DEBUG__ |
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debug-level message |
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!!HISTORY |
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A __syslog__ function call appeared in BSD |
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4.2. |
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!!SEE ALSO |
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2 |
perry |
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logger(1), syslog.conf(5), |
1 |
perry |
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syslogd(8) |
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---- |