pub unsafe extern "C" fn gss_inquire_cred(
    arg1: *mut OM_uint32,
    arg2: gss_cred_id_t,
    arg3: *mut gss_name_t,
    arg4: *mut OM_uint32,
    arg5: *mut gss_cred_usage_t,
    arg6: *mut gss_OID_set
) -> OM_uint32