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only substr if layers returns

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This commit is contained in:
Oliver Gorwits
2021-10-07 17:09:50 +01:00
parent 933766120f
commit 0d7b482edd
1 changed files with 4 additions and 2 deletions
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6
lib/SNMP/Info/Layer3/DLink.pm
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@@ -78,8 +78,10 @@ sub layers {
my $dlink = shift; my $dlink = shift;
my $layers = $dlink->SUPER::layers(); my $layers = $dlink->SUPER::layers();
substr $layers, 5, 1, "1"; if ($layers) {
substr $layers, 6, 1, "1"; substr $layers, 5, 1, "1";
substr $layers, 6, 1, "1";
}
return $layers; return $layers;
} }