How to check if ObjectIdentifier is root of another ObjectIdentifier? (SnmpSharpNet)

Question

How would I check if an ObjectIdentifier is parent/root of another ObjectIdentifier?

For example:

ObjectIdentifier rootId = ...;
Variable variable = ...;
if (rootId.IsRootOf(variable.Id))
{
    // The variable's id is a child of root id!
}

I can't seem to find any method like that in SnmpSharpNet.

Convert to strings and then use `.StartsWith`. – Lex Li Jan 14 '20 at 22:44 — Lex Li, Jan 14 '20 at 22:44

score 0 · Answer 1 · answered Jan 14 '20 at 14:46

0

rootId is a parent if this is true

is-equal (rootId, variableId, len(rootId))

answered Jan 14 '20 at 14:46

Gambit Support

Could you expand on this answer? I am not sure what you mean. How would I implement this IsEqual method? – Vapid Jan 14 '20 at 15:55
1

Your API must have a comparison operation on OID type for a certain length. Since OIDs are hierarchical, if they are the same upto the length of the smaller of the 2, then by definition the smaller of the 2 is the parent of the longer. – Gambit Support Jan 14 '20 at 17:27

1 Answers1