Function cupsDoIORequest

cups/request.c:99–278

 */

ipp_t *					/* O - Response data */
cupsDoIORequest(http_t     *http,	/* I - Connection to server or @code CUPS_HTTP_DEFAULT@ */
                ipp_t      *request,	/* I - IPP request */
                const char *resource,	/* I - HTTP resource for POST */
		int        infile,	/* I - File to read from or -1 for none */
		int        outfile)	/* I - File to write to or -1 for none */
{
  ipp_t		*response = NULL;	/* IPP response data */
  size_t	length = 0;		/* Content-Length value */
  http_status_t	status;			/* Status of HTTP request */
  struct stat	fileinfo;		/* File information */
  ssize_t	bytes;			/* Number of bytes read/written */
  char		buffer[32768];		/* Output buffer */


  DEBUG_printf(("cupsDoIORequest(http=%p, request=%p(%s), resource=\"%s\", infile=%d, outfile=%d)", (void *)http, (void *)request, request ? ippOpString(request->request.op.operation_id) : "?", resource, infile, outfile));

 /*
  * Range check input...
  */

  if (!request || !resource)
  {
    ippDelete(request);

    _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(EINVAL), 0);

    return (NULL);
  }

 /*
  * Get the default connection as needed...
  */

  if (!http && (http = _cupsConnect()) == NULL)
  {
    ippDelete(request);

    return (NULL);
  }

 /*
  * See if we have a file to send...
  */

  if (infile >= 0)
  {
    if (fstat(infile, &fileinfo))
    {
     /*
      * Can't get file information!
      */

      _cupsSetError(errno == EBADF ? IPP_STATUS_ERROR_NOT_FOUND : IPP_STATUS_ERROR_NOT_AUTHORIZED, NULL, 0);
      ippDelete(request);

      return (NULL);
    }