Originální popis anglicky:
syslog.h - definitions for system error logging
Návod, kniha: POSIX Programmer's Manual
#include <syslog.h>
The
<syslog.h> header shall define the following symbolic
constants, zero or more of which may be OR'ed together to form the
logopt option of
openlog():
- LOG_PID
- Log the process ID with each message.
- LOG_CONS
- Log to the system console on error.
- LOG_NDELAY
- Connect to syslog daemon immediately.
- LOG_ODELAY
- Delay open until syslog() is called.
- LOG_NOWAIT
- Do not wait for child processes.
The following symbolic constants shall be defined as possible values of the
facility argument to
openlog():
- LOG_KERN
- Reserved for message generated by the system.
- LOG_USER
- Message generated by a process.
- LOG_MAIL
- Reserved for message generated by mail system.
- LOG_NEWS
- Reserved for message generated by news system.
- LOG_UUCP
- Reserved for message generated by UUCP system.
- LOG_DAEMON
- Reserved for message generated by system daemon.
- LOG_AUTH
- Reserved for message generated by authorization
daemon.
- LOG_CRON
- Reserved for message generated by clock daemon.
- LOG_LPR
- Reserved for message generated by printer system.
- LOG_LOCAL0
- Reserved for local use.
- LOG_LOCAL1
- Reserved for local use.
- LOG_LOCAL2
- Reserved for local use.
- LOG_LOCAL3
- Reserved for local use.
- LOG_LOCAL4
- Reserved for local use.
- LOG_LOCAL5
- Reserved for local use.
- LOG_LOCAL6
- Reserved for local use.
- LOG_LOCAL7
- Reserved for local use.
The following shall be declared as macros for constructing the
maskpri
argument to
setlogmask(). The following macros expand to an expression
of type
int when the argument
pri is an expression of type
int:
- LOG_MASK(pri)
- A mask for priority pri.
The following constants shall be defined as possible values for the
priority argument of
syslog():
- LOG_EMERG
- A panic condition was reported to all processes.
- LOG_ALERT
- A condition that should be corrected immediately.
- LOG_CRIT
- A critical condition.
- LOG_ERR
- An error message.
- LOG_WARNING
- A warning message.
- LOG_NOTICE
- A condition requiring special handling.
- LOG_INFO
- A general information message.
- LOG_DEBUG
- A message useful for debugging programs.
The following shall be declared as functions and may also be defined as macros.
Function prototypes shall be provided.
void closelog(void);
void openlog(const char *, int, int);
int setlogmask(int);
void syslog(int, const char *, ...);
The following sections are informative.
None.
None.
None.
The System Interfaces volume of IEEE Std 1003.1-2001,
closelog()
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. In the event of any discrepancy between
this version and the original IEEE and The Open Group Standard, the original
IEEE and The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.opengroup.org/unix/online.html
.
