Selecting matching rule for compare operation?

[Pierangelo Masarati <ando@sys-net.it>]

Maybe I'm missing something, but (unless the compare operation is to be 
considered obsolete) there's a need for flexibility in performing 
comparisons, e.g. a mech to select appropriate matching rules when 
asserting values.

Scenario: want to know if a server supports a certain control; 
supportedControl doesn't define an EQUALITY rule; however, it's syntax 
is OID.

Quick'n'(not so)dirty: ldapsearch -b "" -s base 
"(supportedControl:objectIdentifierMatch:=<OID>)" # if exactly one entry 
is returned, the DSA supports the control

Clean (would be) solution: ldapcompare ""  
"supportedControl/objectIdentifierMatch:<OID>" # compareTrue if value 
exists according to specified matchingRule

Is there a better/more rfc-compliant way (other than defining an 
EQUALITY rule for that attribute)?

p.




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