[reSIProcate] SDP Contents not getting created.....

[John Draper]

Alan Hawrylyshen wrote:

>
> On 2005.12.10, at 02:57 , John Draper wrote:
>
>>
>>
>>>
>>> - Don’t build SDP as ASCII, use the API in the SdpContents class.
>>
>>
>> I would if I knew how,  or could find some example code that does  
>> this.  I did find
>> the BasicCall.cxx code,  but I couldn't figure out how to use %s  
>> string substitution,
>> and had asked list people this very question, but got no volunteers  
>> to tell me how,
>> so I'm stumbling along trying things until I get it right.
>>
>
>
> testSdp.cxx --
>   sdp.session().connection().getAddress() = Data("10.1.1.1");
> etc.
>
>>> - Just because a test driver messes around with ASCII to  
>>> SdpContents  conversion doesn’t mean it’s a good idea.
>>
>>
>> I'm sure it isn't,  I just don't know better because I haven't  found 
>> out how to do things, so I'm having
>> to do a lot of experimenting, and am now (FINALLY) able to break  the 
>> program at key places with the source level
>> debugger and examine data.  I just recently got to this level of  
>> progress, and it's now made it a lot easier for me to analyse whats  
>> going on.
>>
>> For instance,  in my application,  my recipient has a SIP address  
>> pointing to a domain that is NOT
>> the SIP server.  They (my company) are not using DNS SRV,  but I  
>> figured out that I can
>> do this....   to.param(p_maddr) = "213.167.79.25";  to force it to  
>> use this IP as the SIP
>> server I want.   I don't know if this is the "proper" way to do  
>> this,  but it does work,
>> and I'm sending out the proper INVITE message and it goes to the  
>> right server,  but when
>> I ommitted this statement, it went to our web site,  because the  
>> code tried
>> to resolve the "domain.com" domain name,  which pointed to their  web 
>> server, which
>> obviously not where I want to sent the INVITE request.
>>
>> If you've read my earlier postings,  you'll see my asking for the  
>> proper way to do this.
>>
>>> - Read the Data class definition, it covers Data manipulation  
>>> (which  you almost never need) adequately.
>>
>>
>> I have....  over and over.  But I couldn't figure out how to  specify 
>> string substitution
>> by inserting an IP address into a %s format using the construct in  
>> the BasicCall.cxx.
>>
>
> Because %foo is a C-ism and this stack is C++. Learn how to use  
> std::string, resip::Data is quite similar in many ways.
>
>> Care to tell me how?   I would like to code this properly of  
>> course...  I only did it that
>> way because I couldn't think of any other way to do it.  The test  
>> code does not need
>> to do string substitution like I do.
>>
>
> You don't either -- see testSdp.cxx or SdpContents for the methods /  
> etc. 

It took me a long time to find this,  thanx for the tip.   Did I reply 
the correct way
this time?   Sometimes my "reply all" doesn't work on certain messages.

John

John