pop3d::udb(n)						      Tcl POP3 Server Package						     pop3d::udb(n)

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NAME

       pop3d::udb - Simple user database for pop3d

SYNOPSIS

       package require Tcl  8.2

       package require pop3d::udb  ?1.0.1?

       ::pop3d::udb::new ?dbName?

       dbName option ?arg arg ...?

       dbName destroy

       dbName add user pwd storage

       dbName remove user

       dbName rename user newName

       dbName lookup user

       dbName exists user

       dbName who

       dbName save ?file?

       dbName read file

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DESCRIPTION

       The package pop3d::udb provides simple in memory databases which can be used in conjunction with the pop3 server core provided by the pack-
       age pop3d. The databases will use the names of users as keys and associates passwords and storage references with them.

       Objects created by this package can be directly used in the authentication callback of pop3 servers following the same interface as servers
       created by the package pop3d.

       ::pop3d::udb::new ?dbName?
	      This command creates a new database object with an associated global Tcl command whose name is dbName.

       The command dbName may be used to invoke various operations on the database.  It has the following general form:

       dbName option ?arg arg ...?
	      Option and the args determine the exact behavior of the command.

       The following commands are possible for database objects:

       dbName destroy
	      Destroys the database object.

       dbName add user pwd storage
	      Add a new user or changes the data of an existing user. Stores password and storage reference for the given user.

       dbName remove user
	      Removes the specified user from the database.

       dbName rename user newName
	      Changes the name of the specified user to newName.

       dbName lookup user
	      Searches	the  database  for the specified user and returns a two-element list containing the associated password and storage refer-
	      ence, in this order. Throws an error if the user could not be found. This is the interface as expected by the  authentication  call-
	      back of package pop3d.

       dbName exists user
	      Returns true if the specified user is known to the database, else false.

       dbName who
	      Returns a list of users known to the database.

       dbName save ?file?
	      Saves  the  contents  of	the database into the given file. If the file is not specified the system will use the path last used in a
	      call to dbName read. The generated file can be read by the read method.

       dbName read file
	      Reads the specified file and adds the contained user definitions to the database. As the file is actually  source'd  a  safe  inter-
	      preter is employed to safeguard against malicious code. This interpreter knows the add command for adding users and their associated
	      data to this database. This command has the same argument signature as the method add. The path of the file is remembered internally
	      so that it can be used in the next call of dbName save without an argument.

BUGS, IDEAS, FEEDBACK
       This document, and the package it describes, will undoubtedly contain bugs and other problems.  Please report such in the category pop3d of
       the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you  may  have  for
       either package and/or documentation.

KEYWORDS

       internet, network, pop3, protocol

CATEGORY

       Networking

COPYRIGHT

       Copyright (c) 2002 Andreas Kupries <andreas_kupries@users.sourceforge.net>

pop3d								       1.0.1							     pop3d::udb(n)