syslog.h(3head)

1syslog.h(3HEAD)                     Headers                    syslog.h(3HEAD)
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NAME

6       syslog.h, syslog - definitions for system error logging
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SYNOPSIS

9       #include <syslog.h>
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DESCRIPTION

13       The <syslog.h> header defines the following symbolic constants, zero or
14       more of which can be OR'ed together to form the logopt option of  open‐
15       log():
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17       LOG_PID       Log the process ID with each message.
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20       LOG_CONS      Log to the system console on error.
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23       LOG_NDELAY    Connect to syslog daemon immediately.
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26       LOG_ODELAY    Delay open until syslog() is called.
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29       LOG_NOWAIT    Do not wait for child processes.
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33       The  following symbolic constants are defined as possible values of the
34       facility argument to openlog():
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36       LOG_KERN      reserved for message generated by the system
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39       LOG_USER      message generated by a process
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42       LOG_MAIL      reserved for message generated by mail system
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45       LOG_NEWS      reserved for message generated by news system
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48       LOG_UUCP      reserved for message generated by UUCP system
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51       LOG_DAEMON    reserved for message generated by system daemon
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54       LOG_AUTH      reserved for message generated by authorization daemon
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57       LOG_CRON      reserved for message generated by clock daemon
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60       LOG_LPR       reserved for message generated by printer system
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63       LOG_LOCAL0    reserved for local use
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66       LOG_LOCAL1    reserved for local use
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69       LOG_LOCAL2    reserved for local use
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72       LOG_LOCAL3    reserved for local use
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75       LOG_LOCAL4    reserved for local use
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78       LOG_LOCAL5    reserved for local use
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81       LOG_LOCAL6    reserved for local use
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84       LOG_LOCAL7    reserved for local use
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88       The following is declared as a macro for constructing the maskpri argu‐
89       ment  to  setlogmask(). The following macro expands to an expression of
90       type int when the argument pri is an expre ssion of type int:
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92       LOG_MASK(pri)    a mask for priority pri
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96       The following constants are defined as possible values for the priority
97       argument of syslog():
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99       LOG_EMERG      A panic condition was reported to all processes.
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102       LOG_ALERT      A condition that should be corrected immediately.
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105       LOG_CRIT       A critical condition.
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108       LOG_ERR        An error message.
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111       LOG_WARNING    A warning message.
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114       LOG_NOTICE     A condition requiring special handling.
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117       LOG_INFO       A general information message.
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120       LOG_DEBUG      A message useful for debugging programs.
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ATTRIBUTES

124       See attributes(5) for descriptions of the following attributes:
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129       ┌─────────────────────────────┬─────────────────────────────┐
130       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
131       ├─────────────────────────────┼─────────────────────────────┤
132       │Interface Stability          │Standard                     │
133       └─────────────────────────────┴─────────────────────────────┘
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NAME

SYNOPSIS

DESCRIPTION

ATTRIBUTES

SEE ALSO