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package SNMP::Utils;
use strict;
{
sub get_indices {
my $oids = shift;
my $entry = shift;
my $numindices = shift;
# find all oids beginning with $entry
# then skip one field for the sequence
# then read the next numindices fields
my $entrypat = $entry;
$entrypat =~ s/\./\\\./g;
my @indices = map {
/^$entrypat\.\d+\.(.*)/ && $1;
} grep {
/^$entrypat/
} keys %{$oids};
my %seen = ();
my @o = map {[split /\./]} sort grep !$seen{$_}++, @indices;
return @o;
}
sub get_size {
my $oids = shift;
my $entry = shift;
my $entrypat = $entry;
$entrypat =~ s/\./\\\./g;
my @entries = grep {
/^$entrypat/
} keys %{$oids};
return scalar(@entries);
}
sub get_object {
my $oids = shift;
my $object = shift;
my @indices = @_;
#my $oid = $object.'.'.join('.', @indices);
my $oid = $object;
$oid .= '.'.join('.', @indices) if (@indices);
return $oids->{$oid};
}
sub get_object_value {
my $oids = shift;
my $object = shift;
my $values = shift;
my @indices = @_;
my $key = get_object($oids, $object, @indices);
if (defined $key) {
return $values->{$key};
} else {
return undef;
}
}
#SNMP::Utils::counter([$idxs1, $idxs2], $idx1, $idx2),
# this flattens a n-dimensional array and returns the absolute position
# of the element at position idx1,idx2,...,idxn
# element 1,2 in table 0,0 0,1 0,2 1,0 1,1 1,2 2,0 2,1 2,2 is at pos 6
sub get_number {
my $indexlists = shift; #, zeiger auf array aus [1, 2]
my @element = @_;
my $dimensions = scalar(@{$indexlists->[0]});
my @sorted = ();
my $number = 0;
if ($dimensions == 1) {
@sorted =
sort { $a->[0] <=> $b->[0] } @{$indexlists};
} elsif ($dimensions == 2) {
@sorted =
sort { $a->[0] <=> $b->[0] || $a->[1] <=> $b->[1] } @{$indexlists};
} elsif ($dimensions == 3) {
@sorted =
sort { $a->[0] <=> $b->[0] ||
$a->[1] <=> $b->[1] ||
$a->[2] <=> $b->[2] } @{$indexlists};
}
foreach (@sorted) {
if ($dimensions == 1) {
if ($_->[0] == $element[0]) {
last;
}
} elsif ($dimensions == 2) {
if ($_->[0] == $element[0] && $_->[1] == $element[1]) {
last;
}
} elsif ($dimensions == 3) {
if ($_->[0] == $element[0] &&
$_->[1] == $element[1] &&
$_->[2] == $element[2]) {
last;
}
}
$number++;
}
return ++$number;
}
}
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