debug_printf("CRAM-MD5: user name = %s\n", auth_vars[0]);
debug_printf(" challenge = %s\n", challenge);
debug_printf(" received = %s\n", clear);
debug_printf("CRAM-MD5: user name = %s\n", auth_vars[0]);
debug_printf(" challenge = %s\n", challenge);
debug_printf(" received = %s\n", clear);