Invite Hello World

Hello list,

I'm trying to get a simple "hello world" sample up
and going and I am
having trouble sending and receiving an INVITE. I've looked
at
http://wiki.opensource.nokia.com/projects/SofiaTutorial and I can send and
receive a simple message. But I would like help sending and
receiving an
INVITE (the API is still very new to me).

Below is my humble attempt, can anyone see where I have
messed up big time
and help me resolve the issue.

I would like the Caller to send the invite to the Callee.

Thank you in advance!

---code---

#include <stdio.h>
#include <sofia-sip/nua.h>

// #define CALLER 1

struct application
{
   su_home_t  home;     /* memory home */
   su_root_t* root;     /* root object */
   nua_t*     nua;      /* NUA stack object */
};

void event_callback(nua_event_t event, int status, const
char* phrase,
nua_t* nua, nua_magic_t* magic, nua_handle_t* nh,
nua_hmagic_t* hmagic,
const sip_t* sip, tagi_t tags[]);

void send_invite(nua_t* nua, su_home_t*);

void event_i_invite(int status, const char* phrase, nua_t*
nua,
nua_magic_t* magic, nua_handle_t* nh, nua_hmagic_t* hmagic,
const sip_t*
sip, tagi_t tags[]);
void event_r_invite(int status, const char* phrase, nua_t*
nua,
nua_magic_t* magic, nua_handle_t* nh, nua_hmagic_t* hmagic,
const sip_t*
sip, tagi_t tags[]);

int main(int argc, char* argv[])
{
   application app = ;
               app.home.suh_size = sizeof(application);

   su_init();
   su_home_init(&app.home);
   app.root = su_root_create(&app);

#ifdef CALLER
   printf("I am the Callern");
#else
   printf("I am the Calleen");
#endif

   if (app.root != NULL)
   {
      app.nua = nua_create(app.root, event_callback,
&app,
#ifdef CALLER
                                               
NUTAG_URL("sip:0.0.0.0:5062"),
/* Address to bind to */
#else
                                               
NUTAG_URL("sip:0.0.0.0:5060"),
#endif
                                                     
TAG_END());

      if (app.nua != NULL)
      {
         nua_set_params(app.nua,
SIPTAG_USER_AGENT_STR("Simon/1.0"),
                                
SIPTAG_ALLOW_STR("INVITE,CANCEL,BYE,ACK"),
                                 SIPTAG_USER_AGENT(NULL),
                                 NUTAG_AUTOACK(1),
                                 TAG_END());
#ifdef CALLER
         send_invite(app.nua, &app.home);
#endif

         su_root_run(app.root);

         nua_destroy(app.nua);
      }

      su_root_destroy(app.root);
   }

   su_home_deinit(&app.home);
   su_deinit();

   return 0;
}

void event_callback(nua_event_t event, int status, const
char* phrase,
nua_t* nua, nua_magic_t* magic, nua_handle_t* nh,
nua_hmagic_t* hmagic,
const sip_t* sip, tagi_t tags[])
{
   switch (event)
   {
      case nua_i_invite:
         event_i_invite(status, phrase, nua, magic, nh,
hmagic, sip, tags);
      break;

      case nua_r_invite:
         event_r_invite(status, phrase, nua, magic, nh,
hmagic, sip, tags);
      break;

      case nua_r_set_params:
      break;

   /* and so on ... */

      default:
   /* unknown event -> print out error message */
         if (status > 100)
         {
            printf("Unknown event %d: %03d %sn",
event, status, phrase);
         }
         else
         {
            printf("Unknown event %dn", event);
         }
   }

   return;
}

void send_invite(nua_t* nua, su_home_t* h)
{
   nua_handle_t* handle = nua_handle(nua, h,
SIPTAG_TO_STR("sip:test127.0.0.1:5060"),
TAG_END());

   nua_invite(handle, TAG_END());

   nua_handle_destroy(handle);

   return;
}

void event_i_invite(int status, const char* phrase, nua_t*
nua,
nua_magic_t* magic, nua_handle_t* nh, nua_hmagic_t* hmagic,
const sip_t*
sip, tagi_t tags[])
{
   printf("Incoming call...n");

   return;
}

void event_r_invite(int status, const char* phrase, nua_t*
nua,
nua_magic_t* magic, nua_handle_t* nh, nua_hmagic_t* hmagic,
const sip_t*
sip, tagi_t tags[])
{
   printf("Response to INVITE: %03d %sn", status,
phrase);

   return;
}


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В Вск, 06/05/2007 в 21:46 +1000, simonpixeltangent.com пишет:
> Hello list,
> 
> I'm trying to get a simple "hello world"
sample up and going and I am
> having trouble sending and receiving an INVITE. I've
looked at
> http://wiki.opensource.nokia.com/projects/SofiaTutorial and I can send and
> receive a simple message. But I would like help sending
and receiving an
> INVITE (the API is still very new to me).
> 
> Below is my humble attempt, can anyone see where I have
messed up big time
> and help me resolve the issue.
> 
> I would like the Caller to send the invite to the
Callee.
> 
> Thank you in advance!

Hello Simon. Since invite should initialize SDP, you have to
pass sdp
string to call nua_invite, then it will work, try:


>    nua_invite(handle,
>                SOATAG_USER_SDP_STR("v=0rnm=audio
5000 RTP/AVP 18 8rn"
>                                    "a=rtpmap:18
G729/8000rn"
>                                    "a=rtpmap:8
PCMA/8000rn"),
>                TAG_END());

Heh, I'd better file a bug about that, it's really easy to
fire a warning to
developer about incorrect api usage. But it's really hard to
find what's wrong
in this case moreover if you are newbie.


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Thankyou so very much, I know I will have more questions in
the future.



> В Вск, 06/05/2007 в 21:46 +1000, simonpixeltangent.com пишет:
>> Hello list,
>>
>> I'm trying to get a simple "hello world"
sample up and going and I am
>> having trouble sending and receiving an INVITE.
I've looked at
>> http://wiki.opensource.nokia.com/projects/SofiaTutorial and I can send
>> and
>> receive a simple message. But I would like help
sending and receiving an
>> INVITE (the API is still very new to me).
>>
>> Below is my humble attempt, can anyone see where I
have messed up big
>> time
>> and help me resolve the issue.
>>
>> I would like the Caller to send the invite to the
Callee.
>>
>> Thank you in advance!
>
> Hello Simon. Since invite should initialize SDP, you
have to pass sdp
> string to call nua_invite, then it will work, try:
>
>
>>    nua_invite(handle,
>>               
SOATAG_USER_SDP_STR("v=0rnm=audio 5000 RTP/AVP 18
>> 8rn"
>>                                   
"a=rtpmap:18 G729/8000rn"
>>                                    "a=rtpmap:8
PCMA/8000rn"),
>>                TAG_END());
>
> Heh, I'd better file a bug about that, it's really easy
to fire a warning
> to
> developer about incorrect api usage. But it's really
hard to find what's
> wrong
> in this case moreover if you are newbie.
>
>


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-------------
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Download DB2 Express C - the FREE version of DB2 express and
take
control of your XML. No limits. Just data. Click to get it
now.
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