Subject: Re: [Bluez-users] problem adding 1284 ID SDP attribute
From: Marcel Holtmann <marcel@holtmann.org>
To: bluez-users@lists.sourceforge.net
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Date: Mon, 12 Dec 2005 10:34:36 +0100

Hi Arch,

> I am having a problem adding the 1284ID attribute. The 1284ID is of
> type String. (So I use SDP_TEXT_STR8) However, the first 2 characters
> of this string are to be interpreted as a 2-byte length field. The
> length of my string is 80 which is 0x0050 in HEXADECIMAL. So when I
> add it as a string, the SDP function interprets the 1st byte as a null
> terminator and sends an empty string.
>  
> I tried increasing the length of my string to 0x0101 to avoid a 0x00
> byte. However, this cannot be done since the maximum length for an
> SDP_TEXT_STR8 is only 255 which is 0x00FF.
>  
> In this case, how will I be able to add a 1284ID string attribute
> whose length field contains a 0x00 byte?

last week ago or so, Collin ran into the same problem with the HID
report descriptor. It is also a binary string. With bluez-libs-2.23 you
can use sdp_data_alloc_with_length() to specify the length of the string
and then it should work fine.

Regards

Marcel


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