summaryrefslogtreecommitdiffstats
path: root/contrib/perl5/lib/User/pwent.pm
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/perl5/lib/User/pwent.pm')
-rw-r--r--contrib/perl5/lib/User/pwent.pm103
1 files changed, 103 insertions, 0 deletions
diff --git a/contrib/perl5/lib/User/pwent.pm b/contrib/perl5/lib/User/pwent.pm
new file mode 100644
index 0000000..32301ca
--- /dev/null
+++ b/contrib/perl5/lib/User/pwent.pm
@@ -0,0 +1,103 @@
+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
OpenPOWER on IntegriCloud