[lug] portable md5 function?

[D. Stimits]

I'm trying to find out if there is now a semi-portable (at least among
linux machines, probably UNIX in general) md5 sum function call
available. The original crypt() one-way hash does not use md5, but most
of the linux distro's now use md5 (or make it available) for passwords.
Is this possibly built into the libpam library? I'm trying to find a C
function call to do this, without invoking a "system()" call.

D. Stimits, stimits at idcomm.com