Hi Aki,

> -		if (offset != 0) {
> -			sms->submit.ud[offset] = (ref & 0xf0) >> 8;
> -			sms->submit.ud[offset+1] = (ref & 0x0f);
> -		}
> -
>  		sms_address_from_string(&sms->submit.daddr, to);
> +
> +		if (offset == 0)
> +			continue;
> +
> +		if (use_16bit) {
> +			sms->submit.ud[offset] = ref & 0xf0 >> 8;

This doesn't look right at all, bitwise shift >> has higher precedence
than bitwise AND &.

> +			sms->submit.ud[offset+1] = ref & 0x0f;
> +		} else {
> +			sms->submit.ud[offset] = ref & 0x0f;
> +		}

Regards,
-Denis