request-header equivalent for 2.1

[Graeme B. Davis]

We still have an old server running 2.1 (on Sol 2.5.1!) -- is there an
equivalent way to get http headers with this version of roxen? in 4.x, I
know I can do &request-header.whatever;,but I'm not sure how to do it in 2.1
 
Ideas?
 
Thanks!
 
graeme