[Bluez-devel] SDP without results

[Bluez-devel] SDP without results

[Götz Issel]

Hi, 

I am trying to discover services of a device, looking for the SAP
service. In my understanding this is the hex ID for uuid  0x112d .

I have been trying to use the sample of Albert Huang
(http://people.csail.mit.edu/albert/bluez-intro/)   section 4.4 .

The service id is defined as
    uint32_t svc_uuid_int[] = { 0x0, 0x0, 0x0, 0x112d };

The line
    session = sdp_connect( BDADDR_ANY, &target, SDP_RETRY_IF_BUSY );

results in (checked via printf)
	session->state=0, 
	session->flags=1, 
	session->sock=3, 
	session->local=0,
	session->tid=0

The line 
err = sdp_service_search_attr_req( session, search_list, \
            SDP_ATTR_REQ_RANGE, attrid_list, &response_list);

gives err = 0 , so all is fine up to there.

The following FOR-loop is never entered ( for (; r; r = r->next ) {....  ) !

Any ideas ? 
My source code under : http://www.goetzi.de/try1.html

Using the command line tool "sdptool search 0x112d" gives perfect
results by the way.

Goetz


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Re: [Bluez-devel] SDP without results

[Marcel Holtmann]

Hi Goetz,

> I am trying to discover services of a device, looking for the SAP
> service. In my understanding this is the hex ID for uuid  0x112d .
> 
> I have been trying to use the sample of Albert Huang
> (http://people.csail.mit.edu/albert/bluez-intro/)   section 4.4 .
> 
> The service id is defined as
>     uint32_t svc_uuid_int[] = { 0x0, 0x0, 0x0, 0x112d };

you use of sdp_uuid128_create() is wrong and also not needed at all. It
is enough to add the UUID16 identifier for this kind of search. The
bluez-utils source packages contains enough examples on how to search
for specific services.

Regards

Marcel




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