Implement a function to find all instances of a particular ad_type in
ticket or authenticator authdata.

https://github.com/krb5/krb5/commit/0945d0df18718a30bb80e4d8595f46b7c24e14ab
Commit By: hartmans
Revision: 22096
Changed Files:
U   trunk/src/lib/krb5/krb/copy_auth.c