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# ex:ts=8 sw=4:
# $OpenBSD: IdCache.pm,v 1.4 2007/06/04 14:40:39 espie Exp $
#
# Copyright (c) 2002-2005 Marc Espie <espie@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
#
use strict;
use warnings;
package OpenBSD::SimpleIdCache;
sub new
{
my $class = shift;
bless {}, $class;
}
sub lookup
{
my ($self, $name, $default) = @_;
my $r;
if (defined $self->{$name}) {
$r = $self->{$name};
} else {
$r = $self->convert($name);
if (!defined $r) {
$r = $default;
}
$self->{$name} = $r;
}
return $r;
}
package OpenBSD::IdCache;
our @ISA=qw(OpenBSD::SimpleIdCache);
sub lookup
{
my ($self, $name, $default) = @_;
if ($name =~ m/^\d+$/o) {
return $name;
} else {
return $self->SUPER::lookup($name, $default);
}
}
package OpenBSD::UidCache;
our @ISA=qw(OpenBSD::IdCache);
sub convert
{
my @entry = getpwnam($_[1]);
return @entry == 0 ? undef : $entry[2];
}
package OpenBSD::GidCache;
our @ISA=qw(OpenBSD::IdCache);
sub convert
{
my @entry = getgrnam($_[1]);
return @entry == 0 ? undef : $entry[2];
}
package OpenBSD::UnameCache;
our @ISA=qw(OpenBSD::SimpleIdCache);
sub convert
{
return getpwuid($_[1]);
}
package OpenBSD::GnameCache;
our @ISA=qw(OpenBSD::SimpleIdCache);
sub convert
{
return getgrgid($_[1]);
}
1;
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