allow null rcache to rd_req & friends

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@1077 dc483132-0cff-0310-8789-dd5450dbe970

diff --git a/doc/api/krb5.tex b/doc/api/krb5.tex
index a53b3f4a10a4df2078ffaf0ed60db9de6e3ec98b..0700002d52bc2bd1bdc085e86aedfc306819f7fb 100644 (file)
--- a/doc/api/krb5.tex
+++ b/doc/api/krb5.tex
@@ -462,7 +462,8 @@ Parses a KRB_AP_REQ message, returning its contents.
 in the ticket.
 
 \funcparam{rcache} specifies a replay detection cache used to store
-authenticators and server names.
+authenticators and server names.  If \funcparam{rcache} is NULL, then no
+replay detection is performed.
 
 \funcparam{keyproc} specifies a procedure to generate a decryption key for the
 ticket.  If \funcparam{keyproc} is non-NULL, \funcparam{keyprocarg} is