char *
generating_sdp_answer(osip_message_t *request, osip_negotiation_ctx_t *context)
{
sdp_message_t *remote_sdp;
sdp_message_t *local_sdp = NULL;
int i;
char *local_body;
if (context==NULL)
return NULL;
local_body = NULL;
if (MSG_IS_INVITE(request)||MSG_IS_OPTIONS(request)||MSG_IS_RESPONSE_FOR(request, "INVITE"))
{
osip_body_t *body;
body = (osip_body_t *)osip_list_get(&request->bodies,0);
if(body == NULL)
return NULL;
/* remote_sdp = (sdp_message_t *) osip_malloc(sizeof(sdp_message_t)); */
i = sdp_message_init(&remote_sdp);
if (i!=0) return NULL;
/* WE ASSUME IT IS A SDP BODY AND THAT */
/* IT IS THE ONLY ONE, OF COURSE, THIS IS */
/* NOT TRUE */
i = sdp_message_parse(remote_sdp,body->body);
if (i!=0) return NULL;
i = osip_negotiation_ctx_set_remote_sdp(context, remote_sdp);
i = osip_negotiation_ctx_execute_negotiation(eXosip.osip_negotiation, context);
if (i==200)
{
local_sdp = osip_negotiation_ctx_get_local_sdp(context);
i = sdp_message_to_str(local_sdp, &local_body);
remote_sdp = osip_negotiation_ctx_get_remote_sdp(context);
sdp_message_free(remote_sdp);
osip_negotiation_ctx_set_remote_sdp(context, NULL);
if (i!=0) {
OSIP_TRACE(osip_trace(__FILE__,__LINE__,OSIP_ERROR,NULL,"ERROR: Could not parse local SDP answer %i\n",i));
return NULL;
}
return local_body;
}
else if (i==415)
{
OSIP_TRACE(osip_trace(__FILE__,__LINE__,OSIP_INFO1,NULL,"WARNING: Unsupported media %i\n",i));
}
else
{
OSIP_TRACE(osip_trace(__FILE__,__LINE__,OSIP_ERROR,NULL,"ERROR: while building answer to SDP (%i)\n",i));
}
remote_sdp = osip_negotiation_ctx_get_remote_sdp(context);
sdp_message_free(remote_sdp);
osip_negotiation_ctx_set_remote_sdp(context, NULL);
}
return NULL;
}
int
test_sdp_message (char *msg, int verbose)
{
sdp_message_t *sdp;
{
char *result;
sdp_message_init (&sdp);
if (sdp_message_parse (sdp, msg) != 0)
{
fprintf (stdout, "ERROR: failed while parsing!\n");
sdp_message_free (sdp); /* try to free msg, even if it failed! */
/* this seems dangerous..... */
return -1;
}
else
{
int i;
i = sdp_message_to_str (sdp, &result);
test_accessor_get_api (sdp);
if (i == -1)
{
fprintf (stdout, "ERROR: failed while printing message!\n");
sdp_message_free (sdp);
return -1;
}
else
{
if (verbose)
fprintf (stdout, "%s", result);
if (strlen (result) != strlen (msg))
fprintf (stdout, "length differ from original message!\n");
if (0 == strncmp (result, msg, strlen (result)))
fprintf (stdout, "result equals msg!!\n");
osip_free (result);
{
osip_negotiation_ctx_t *context;
sdp_message_t *dest;
i = osip_negotiation_ctx_init (&context);
i =
osip_negotiation_ctx_set_mycontext (context,
(void *) ua_context);
{
sdp_message_t *sdp;
osip_negotiation_sdp_build_offer (osip_negotiation,
context, &sdp,
ua_context->m_audio_port,
ua_context->m_video_port);
sdp_message_to_str (sdp, &result);
fprintf (stdout, "Here is the offer:\n%s\n", result);
osip_free (result);
osip_negotiation_sdp_message_put_on_hold (sdp);
sdp_message_to_str (sdp, &result);
fprintf (stdout, "Here is the offer on hold:\n%s\n", result);
osip_free (result);
sdp_message_free (sdp);
}
i = osip_negotiation_ctx_set_remote_sdp (context, sdp);
if (i != 0)
{
fprintf (stdout,
"Initialisation of context failed. Could not negociate\n");
}
else
{
fprintf (stdout, "Trying to execute a SIP negotiation:\n");
i =
osip_negotiation_ctx_execute_negotiation
(osip_negotiation, context);
fprintf (stdout, "return code: %i\n", i);
if (i == 200)
{
dest = osip_negotiation_ctx_get_local_sdp (context);
fprintf (stdout, "SDP answer:\n");
i = sdp_message_to_str (dest, &result);
if (i != 0)
fprintf (stdout,
"Error found in SDP answer while printing\n");
else
fprintf (stdout, "%s\n", result);
osip_free (result);
}
osip_negotiation_ctx_free (context);
return 0;
}
}
}
sdp_message_free (sdp);
}
}
return 0;
}
