Open System Services Library Calls Reference Manual (G06.28+, H06.05+)

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openlog(3) OSS Library Calls Reference Manual

NAME

openlog - Initializes Event Management Service (EMS) event log ﬁles

LIBRARY

G-series native OSS processes: /G/system/sysnn/zossesrl

H-series OSS processes: /G/system/zdllnnn/zossedll

SYNOPSIS

#include <syslog.h>

int openlog(

const char *ident,

int logopt,

int facility);

PARAMETERS

ident Contains a pointer to an identity (event subject) string, which by default contains

"syslog." The calling process must not deallocate or override the identity string

until a new string is speciﬁed through a subsequent call to the openlog() func-

tion.

The event subject string becomes the value of the EMS token ZOSS-TKN-

IDENT. Refer to the syslog(3) reference page either online or in the Open Sys-

tem Services Library Calls Reference Manual for more information about the

use of this token.

logopt Speciﬁes options that modify the operation of openlog(). The following logging

options can be logically ORed to create the value for this parameter:

LOG_CONS Forces sending the event message to the local primary collector,

$0, if the message cannot be sent to the collector speciﬁed by the

EMS_COLLECTOR environment variable. If LOG_CONS is

not set when the syslog() function is called and the message

cannot be sent to the collector speciﬁed by

EMS_COLLECTOR, the syslog() function takes no further

action.

LOG_NDELAY

Opens the connection to the collector process immediately.

Normally, the openlog() function does not open this connection

until the ﬁrst event message is logged.

If you specify both LOG_NDELAY and LOG_ODELAY, only

LOG_ODELAY has effect.

LOG_NOWAIT

Has no effect. This option is included for compatibility with

certain UNIX systems.

LOG_ODELAY

Opens the connection to the collector process only when the ﬁrst

event message is to be logged. This is the default collector pro-

cess connection option.

If you specify both LOG_NDELAY and LOG_ODELAY, only

LOG_ODELAY has effect.

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