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Hello,<br>
<br>
headers are parsed as needed -- the core has an incremental sip
parser. By default ony few are parsed (like: call-id, csec, to, top
via).<br>
<br>
Some of the well known headers have internal flags, so parsing to
locate them would be like (example for Authorization and
Proxy-Authorization):<br>
<br>
parse_headers(msg, HDR_PROXYAUTH_F|HDR_AUTHORIZATION_F, 0)<br>
<br>
If this function does not return error, then you can get these
headers via their hooks in the sip_msg_t or iterating through
headers list.<br>
<br>
If you look for undefined header, you have to parse to the end of
headers with:<br>
<br>
if(parse_headers(msg, HDR_EOH_F, 0)<0)<br>
{<br>
LM_ERR("error parsing headers\n");<br>
return -1;<br>
}<br>
<br>
Then you iterate through headers and find it by name if it is
actually in the message.<br>
<br>
The parser does caching, so when parsing to locate a header, all the
headers found before it are added to the list. For example, calling
second time parse_headers(msg, HDR_EOH_F, 0) does pretty much
nothing, as sip_msg_t keeps a flag that message was already parsed
to the last header.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 10/25/12 8:58 PM, Peter Dunkley
wrote:<br>
</div>
<blockquote cite="mid:1351191524.30536.5.camel@pd-notebook-linux"
type="cite">
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Hi,<br>
<br>
When adding the oma.xcap-directory auid support to xcap_server I
couldn't get the following bit of code (in
xcap_server.c:xcaps_get_directory()) to work:<br>
<br>
while (hdr != NULL)<br>
{<br>
if (cmp_hdrname_strzn(&hdr->name, "Host",
4) == 0)<br>
{<br>
server_name = hdr->body;<br>
break;<br>
}<br>
hdr = hdr->next;<br>
}<br>
<br>
The host header was never found. However, simply putting
'xdbg("$hdr(Host)\n");' in event_route[xhttp:request] made it
start working.<br>
<br>
Have I missed something in the code, or is this a bug?<br>
<br>
Regards,<br>
<br>
Peter<br>
<br>
<br>
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<pre>--
Peter Dunkley
Technical Director
Crocodile RCS Ltd
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<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla - <a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a>
<a class="moz-txt-link-freetext" href="http://twitter.com/#!/miconda">http://twitter.com/#!/miconda</a> - <a class="moz-txt-link-freetext" href="http://www.linkedin.com/in/miconda">http://www.linkedin.com/in/miconda</a>
Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - <a class="moz-txt-link-freetext" href="http://asipto.com/u/kat">http://asipto.com/u/kat</a>
Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - <a class="moz-txt-link-freetext" href="http://asipto.com/u/katu">http://asipto.com/u/katu</a></pre>
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