Description This routine sets the default credentials cache name. If
the default name is not passed in the argument name, it
defaults to the first valid entry of the following values: the KRB5CCNAME logical
name, the file krb5cc_<PID> in
a [.TMP] directory in the user's
login directory (where <PID> is
the user's process ID). If the KRB5CCNAME logical
name is defined, it must not be a system-wide logical name.
Return
Values This routine returns the following KRB5 status codes: