osip_message_to_str.c

嵌入式产品中的osip的源代码.

  message = message + strlen (message);
  osip_strncpy (message, CRLF, 2);
  message = message + 2;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message, sip->vias,
				 "Via: ", 5,
				 ((int (*)(void *, char **))
				  &osip_via_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message,
				 sip->record_routes, "Record-Route: ", 14,
				 ((int (*)(void *, char **))
				  &osip_record_route_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message, sip->routes,
				 "Route: ", 7,
				 ((int (*)(void *, char **))
				  &osip_route_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i = strcat_simple_header (dest, &malloc_size, &message,
			    sip->from, "From: ", 6,
			    ((int (*)(void *, char **)) &osip_from_to_str),
			    &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i = strcat_simple_header (dest, &malloc_size, &message,
			    sip->to, "To: ", 4,
			    ((int (*)(void *, char **)) &osip_to_to_str),
			    &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i = strcat_simple_header (dest, &malloc_size, &message,
			    sip->call_id, "Call-ID: ", 9,
			    ((int (*)(void *, char **)) &osip_call_id_to_str),
			    &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i = strcat_simple_header (dest, &malloc_size, &message,
			    sip->cseq, "CSeq: ", 6,
			    ((int (*)(void *, char **)) &osip_cseq_to_str),
			    &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message, sip->contacts,
				 "Contact: ", 9,
				 ((int (*)(void *, char **))
				  &osip_contact_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i = strcat_headers_one_per_line (dest, &malloc_size, &message,
				   sip->authorizations, "Authorization: ", 15,
				   ((int (*)(void *, char **))
				    &osip_authorization_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message,
				 sip->www_authenticates, "WWW-Authenticate: ",
				 18,
				 ((int (*)(void *, char **))
				  &osip_www_authenticate_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message,
				 sip->proxy_authenticates,
				 "Proxy-Authenticate: ", 20,
				 ((int (*)(void *, char **))
				  &osip_www_authenticate_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message,
				 sip->proxy_authorizations,
				 "Proxy-Authorization: ", 21,
				 ((int (*)(void *, char **))
				  &osip_authorization_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  pos = 0;
  while (!osip_list_eol (sip->headers, pos))
    {
      osip_header_t *header;

      header = (osip_header_t *) osip_list_get (sip->headers, pos);
      i = osip_header_to_str (header, &tmp);
      if (i == -1)
	{
	  osip_free (*dest);
	  *dest = NULL;
	  return -1;
	}

      if (malloc_size < (size_t) (message - *dest + 100 + 16))
	{
	  size_t size = message - *dest;
	  malloc_size = message - *dest + 16 + 100;
	  *dest = realloc (*dest, malloc_size);
	  if (*dest == NULL)
	    return -1;
	  message = *dest + size;
	}

      osip_strncpy (message, tmp, strlen (tmp));
      osip_free (tmp);
      message = message + strlen (message);
      osip_strncpy (message, CRLF, 2);
      message = message + 2;

      pos++;
    }

  i =
    strcat_headers_all_on_one_line (dest, &malloc_size, &message, sip->allows,
				    "Allow: ", 7,
				    ((int (*)(void *, char **))
				     &osip_content_length_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i = strcat_simple_header (dest, &malloc_size, &message,
			    sip->content_type, "Content-Type: ", 14,
			    ((int (*)(void *, char **))
			     &osip_content_type_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_all_on_one_line (dest, &malloc_size, &message,
				    sip->content_encodings,
				    "Content-Encoding: ", 18,
				    ((int (*)(void *, char **))
				     &osip_content_length_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i = strcat_simple_header (dest, &malloc_size, &message,
			    sip->mime_version, "Mime-Version: ", 14,
			    ((int (*)(void *, char **))
			     &osip_content_length_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message,
				 sip->call_infos, "Call-Info: ", 11,
				 ((int (*)(void *, char **))
				  &osip_call_info_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message,
				 sip->alert_infos, "Alert-Info: ", 12,
				 ((int (*)(void *, char **))
				  &osip_call_info_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_one_per_line (dest, &malloc_size, &message,
				 sip->error_infos, "Error-Info: ", 12,
				 ((int (*)(void *, char **))
				  &osip_call_info_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_all_on_one_line (dest, &malloc_size, &message,
				    sip->accepts, "Accept: ", 8,
				    ((int (*)(void *, char **))
				     &osip_content_type_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_all_on_one_line (dest, &malloc_size, &message,
				    sip->accept_encodings,
				    "Accept-Encoding: ", 17,
				    ((int (*)(void *, char **))
				     &osip_accept_encoding_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;

  i =
    strcat_headers_all_on_one_line (dest, &malloc_size, &message,
				    sip->accept_languages,
				    "Accept-Language: ", 17,
				    ((int (*)(void *, char **))
				     &osip_accept_encoding_to_str), &next);
  if (i != 0)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }
  message = next;



  /* we have to create the body before adding the contentlength */
  /* add enough lenght for "Content-Length: " */
  if (malloc_size < (size_t) (message - *dest + 100 + 16))
    {
      size_t size = message - *dest;
      malloc_size = message - *dest + 16 + 100;
      *dest = realloc (*dest, malloc_size);
      if (*dest == NULL)
	return -1;
      message = *dest + size;
    }

  osip_strncpy (message, "Content-Length: ", 16);
  message = message + strlen (message);

  /* SIPit Day1
     ALWAYS RECALCULATE?
     if (sip->contentlength!=NULL)
     {
     i = osip_content_length_to_str(sip->contentlength, &tmp);
     if (i==-1) {
     osip_free(*dest);
     *dest = NULL;
     return -1;
     }
     osip_strncpy(message,tmp,strlen(tmp));
     osip_free(tmp);
     }
     else
     { */
  if (osip_list_eol (sip->bodies, 0))	/* no body */
    osip_strncpy (message, "0", 1);
  else
    {
      /* BUG: p130 (rfc2543bis-04)
         "No SP after last token or quoted string"

         In fact, if extra spaces exist: the stack can't be used
         to make user-agent that wants to make authentication...
         This should be changed...
       */

      osip_strncpy (message, "     ", 5);
      content_length_to_modify = message;
    }
  /*  } */
  message = message + strlen (message);
  osip_strncpy (message, CRLF, 2);
  message = message + 2;


  /* end of headers */
  osip_strncpy (message, CRLF, 2);
  message = message + 2;

  if (osip_list_eol (sip->bodies, 0))
    {
      /* same remark as at the beginning of the method */
      sip->message_property = 1;
      sip->message = osip_strdup (*dest);
      return 0;			/* it's all done */
    }
  start_of_bodies = message;

  pos = 0;
  while (!osip_list_eol (sip->bodies, pos))
    {
      osip_body_t *body;

      body = (osip_body_t *) osip_list_get (sip->bodies, pos);

      if (sip->mime_version != NULL)
	{
	  osip_strncpy (message, "--++", strlen ("--++"));
	  message = message + strlen (message);
	  osip_strncpy (message, CRLF, 2);
	  message = message + 2;
	}

      i = osip_body_to_str (body, &tmp);
      if (i != 0)
	{
	  osip_free (*dest);
	  *dest = NULL;
	  return -1;
	}

      if (malloc_size < message - *dest + 100 + strlen (tmp))
	{
	  size_t size = message - *dest;
	  malloc_size = message - *dest + strlen (tmp) + 100;
	  *dest = realloc (*dest, malloc_size);
	  if (*dest == NULL)
	    return -1;
	  message = *dest + size;
	}

      osip_strncpy (message, tmp, strlen (tmp));
      osip_free (tmp);
      message = message + strlen (message);

      pos++;
    }

  if (sip->mime_version != NULL)
    {
      osip_strncpy (message, "--++--", strlen ("--++--"));
      message = message + strlen (message);
      osip_strncpy (message, CRLF, 2);
      message = message + 2;
      /* ADDED at SIPit day1:  Is this needed for MIME type?
         osip_strncpy(message,CRLF,2);
         message = message + 2;
         strncpy(message,"\0",1); */
    }

  if (content_length_to_modify == NULL)
    {
      osip_free (*dest);
      *dest = NULL;
      return -1;
    }

  /* we NOW have the length of bodies: */
  {
    size_t size = strlen (start_of_bodies);
    char tmp[15];

    sprintf (tmp, "%i", size);
    /* do not use osip_strncpy here! */
    strncpy (content_length_to_modify + 5 - strlen (tmp), tmp, strlen (tmp));
  }

  /* same remark as at the beginning of the method */
  sip->message_property = 1;
  sip->message = osip_strdup (*dest);
  return 0;
}