what is contained in whoami.h?

[utzoo!decvax!harpo!npoiv!hou5f!hou5b!hou5c!hou5e!hou5a!hbb]

In mkpath.c, there is an include file called whoami.h. Can the
contents of this include file be posted to net.sources?

Thank you
Sincerely,
Harlan Braude
(hou5a!hbb)