Re: catenate the sms

On Mittwoch, April 23, 2003, at 04:13  Uhr, Yury Mikhienko wrote:

>>> But I see in pdu_to_msg function  (smsc_smpp.c) the following:
>>> ...
>>>     if (pdu->u.deliver_sm.esm_class & 
>>> ESM_CLASS_SUBMIT_UDH_INDICATOR) {
>>>         udh_offset = octstr_get_char(pdu->u.deliver_sm.short_message,
>>> 0) + 1;
>>>         msg->sms.udhdata =
>>> octstr_copy(pdu->u.deliver_sm.short_message, 0, udh_offset);
>>>         msg->sms.msgdata =
>>> octstr_copy(pdu->u.deliver_sm.short_message, udh_offset,
>>>
>>> octstr_len(pdu->u.deliver_sm.short_message) - udh_offset);
>>>         octstr_destroy(pdu->u.deliver_sm.short_message);
>>>         msg->sms.coding = DC_8BIT;
>>>     } else {
>>>         msg->sms.msgdata = pdu->u.deliver_sm.short_message;
>>>     }
>>>     pdu->u.deliver_sm.short_message = NULL;
>>> ...
>>>
>>> this is work for INCOMING sms only (in my opinion)
>>>
>>
>> This is only splitting off the UDH header from the content.
>>
>
> And  sms-service receive the UDH+msgdata content or pure msgdata 
> content?
> I think, the sms-service receive the pure msgdata content in this case.

Of course. The UDH is in the UDH field and the message content is in 
the message field.
On SMPP they are transported together, in other SMSC drivers they are 
kept separate.

Andreas Fink
Global Networks Switzerland AG

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