RLOGIN failures with uucp

[20]

Seems that the RLOGIN message comes from the 5.2 uucico when it can't find the
login name in the USERFILE.  The login name *must* be present in the USERFILE.
In no case can the login name be missing from the USERFILE.  Period.  At least
from  what  I  can tell.  In the sample USERFILE below, removing the null line
won't change the results one bit.

USERFILE:
	, 		/			(null line)
	n1,		/
	,s1		/
	n2,s2		/

Results:
	login=n1, machine=s1, ret=0	login match with null machine
	login=n1, machine=s2, ret=0	login match with null machine
	login=n1, machine=s3, ret=0	login match with null machine
	login=n2, machine=s1, ret=2	login not paired with machine 
	login=n2, machine=s2, ret=0	login match and machine match
	login=n2, machine=s3, ret=2	login not paired with machine 
	login=n3, machine=s1, ret=2	login not in USERFILE
	login=n3, machine=s2, ret=2	login not in USERFILE
	login=n3, machine=s3, ret=2	login not in USERFILE

Must be a security reason for this, eh?