finding which apps use a given port

[Zbigniew Szalbot]

Hi,

For a long time there has been a problem with posix-something port (as 
reported by portaudit) and I do not see an update to this particular 
port. How would I go about checking which ports/applications use this 
particular posix port? I am tempted to remove it but need to check why 
it is there in first place...

Many thanks in advance!

Zbigniew Szalbot