notifier(7) Apple Inc. notifier(7)
NAME
notifier - cups notification interface
SYNOPSIS
notifier recipient [ user-data ]
DESCRIPTION
The CUPS notifier interface provides a standard method for adding sup-
port for new event notification methods to CUPS. Each notifier delivers
one or more IPP events from the standard input to the specified recipi-
ent.
Notifiers must read IPP messages from the standard input using the ipp-
New and ippReadFile functions and exit on error. Notifiers are encour-
aged to exit after a suitable period of inactivity, however they may
exit after reading the first message or stay running until an error is
seen.
LOG MESSAGES
Messages sent to stderr are generally logged to the current ErrorLog.
Each line begins with a standard prefix:
ALERT: message
Sets the printer-state-message attribute and adds the specified
message to the current ErrorLog using the "alert" log level.
CRIT: message
Sets the printer-state-message attribute and adds the specified
message to the current ErrorLog using the "critical" log level.
DEBUG: message
Sets the printer-state-message attribute and adds the specified
message to the current ErrorLog using the "debug" log level.
DEBUG2: message
Sets the printer-state-message attribute and adds the specified
message to the current ErrorLog using the "debug2" log level.
EMERG: message
Sets the printer-state-message attribute and adds the specified
message to the current ErrorLog using the "emergency" log level.
ERROR: message
Sets the printer-state-message attribute and adds the specified
message to the current ErrorLog using the "error" log level.
INFO: message
Sets the printer-state-message attribute. If the current LogLevel
is set to "debug2", also adds the specified message to the current
ErrorLog using the "info" log level.
NOTICE: message
Sets the printer-state-message attribute and adds the specified
message to the current ErrorLog using the "notice" log level.
WARNING: message
Sets the printer-state-message attribute and adds the specified
message to the current ErrorLog using the "warning" log level.
ENVIRONMENT VARIABLES
The following environment variables are defined by the CUPS server when
executing the notifier:
CHARSET
The default text character set, typically utf-8.
CUPS_CACHEDIR
The directory for semi-persistent cache files can be found.
CUPS_DATADIR
The directory where data files can be found.
CUPS_FILETYPE
The type of file being printed: "job-sheet" for a banner page and
"document" for a regular print file.
CUPS_SERVERROOT
The root directory of the server.
LANG
The default language locale (typically C or en).
PATH
The standard execution path for external programs that may be run
by the filter.
SOFTWARE
The name and version number of the server (typically CUPS/1.2).
TZ
The timezone of the server.
USER
The user executing the filter, typically "lp"; consult the
cupsd.conf(5) file for the current setting.
SEE ALSO
backend(7), cupsd(8), filter(7),
http://localhost:631/help
COPYRIGHT
Copyright 2007-2013 by Apple Inc.
12 May 2009 CUPS notifier(7)
Mac OS X 10.9 - Generated Thu Oct 17 06:07:58 CDT 2013