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notifier
Section: Apple Inc. (7)
Updated: CUPS
Index
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NAME
notifier - cups notification interface
SYNOPSIS
notifier
recipient
[
user-data
]
DESCRIPTION
The CUPS notifier interface provides a standard method for adding support for
new event notification methods to CUPS. Each notifier delivers one or more IPP
events from the standard input to the specified recipient.
Notifiers must read IPP messages from the standard input using the
ippNew and ippReadFile functions and exit on error. Notifiers are encouraged 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 2007-2009 by Apple Inc.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- LOG MESSAGES
-
- ENVIRONMENT VARIABLES
-
- SEE ALSO
-
- COPYRIGHT
-
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