gss_name_to_string
if (gss_name_to_string(rqst2name(rqstp), client_name) != 0)
if (gss_name_to_string(server_gss_name, server_name) != 0) {
if (gss_name_to_string(gss_name, &gss_str) != 0)
static int gss_name_to_string(gss_name_t gss_name, gss_buffer_desc *str);