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- package User::pwent;
- use strict;
-
- BEGIN {
- use Exporter ();
- use vars qw(@EXPORT @EXPORT_OK %EXPORT_TAGS);
- @EXPORT = qw(getpwent getpwuid getpwnam getpw);
- @EXPORT_OK = qw(
- $pw_name $pw_passwd $pw_uid
- $pw_gid $pw_quota $pw_comment
- $pw_gecos $pw_dir $pw_shell
- );
- %EXPORT_TAGS = ( FIELDS => [ @EXPORT_OK, @EXPORT ] );
- }
- use vars @EXPORT_OK;
-
- # Class::Struct forbids use of @ISA
- sub import { goto &Exporter::import }
-
- use Class::Struct qw(struct);
- struct 'User::pwent' => [
- name => '$',
- passwd => '$',
- uid => '$',
- gid => '$',
- quota => '$',
- comment => '$',
- gecos => '$',
- dir => '$',
- shell => '$',
- ];
-
- sub populate (@) {
- return unless @_;
- my $pwob = new();
-
- ( $pw_name, $pw_passwd, $pw_uid,
- $pw_gid, $pw_quota, $pw_comment,
- $pw_gecos, $pw_dir, $pw_shell, ) = @$pwob = @_;
-
- return $pwob;
- }
-
- sub getpwent ( ) { populate(CORE::getpwent()) }
- sub getpwnam ($) { populate(CORE::getpwnam(shift)) }
- sub getpwuid ($) { populate(CORE::getpwuid(shift)) }
- sub getpw ($) { ($_[0] =~ /^\d+/) ? &getpwuid : &getpwnam }
-
- 1;
- __END__
-
- =head1 NAME
-
- User::pwent - by-name interface to Perl's built-in getpw*() functions
-
- =head1 SYNOPSIS
-
- use User::pwent;
- $pw = getpwnam('daemon') or die "No daemon user";
- if ( $pw->uid == 1 && $pw->dir =~ m#^/(bin|tmp)?$# ) {
- print "gid 1 on root dir";
- }
-
- use User::pwent qw(:FIELDS);
- getpwnam('daemon') or die "No daemon user";
- if ( $pw_uid == 1 && $pw_dir =~ m#^/(bin|tmp)?$# ) {
- print "gid 1 on root dir";
- }
-
- $pw = getpw($whoever);
-
- =head1 DESCRIPTION
-
- This module's default exports override the core getpwent(), getpwuid(),
- and getpwnam() functions, replacing them with versions that return
- "User::pwent" objects. This object has methods that return the similarly
- named structure field name from the C's passwd structure from F<pwd.h>;
- namely name, passwd, uid, gid, quota, comment, gecos, dir, and shell.
-
- You may also import all the structure fields directly into your namespace
- as regular variables using the :FIELDS import tag. (Note that this still
- overrides your core functions.) Access these fields as
- variables named with a preceding C<pw_> in front their method names.
- Thus, C<$passwd_obj-E<gt>shell()> corresponds to $pw_shell if you import
- the fields.
-
- The getpw() funtion is a simple front-end that forwards
- a numeric argument to getpwuid() and the rest to getpwnam().
-
- To access this functionality without the core overrides,
- pass the C<use> an empty import list, and then access
- function functions with their full qualified names.
- On the other hand, the built-ins are still available
- via the C<CORE::> pseudo-package.
-
- =head1 NOTE
-
- While this class is currently implemented using the Class::Struct
- module to build a struct-like class, you shouldn't rely upon this.
-
- =head1 AUTHOR
-
- Tom Christiansen
-