Function ippSetOctetString

cups/ipp.c:3185–3256

 */

int					/* O  - 1 on success, 0 on failure */
ippSetOctetString(
    ipp_t           *ipp,		/* I  - IPP message */
    ipp_attribute_t **attr,		/* IO - IPP attribute */
    int             element,		/* I  - Value number (0-based) */
    const void      *data,		/* I  - Pointer to octetString data */
    int             datalen)		/* I  - Length of octetString data */
{
  _ipp_value_t	*value;			/* Current value */


 /*
  * Range check input...
  */

  if (!ipp || !attr || !*attr || ((*attr)->value_tag != IPP_TAG_STRING && (*attr)->value_tag != IPP_TAG_NOVALUE && (*attr)->value_tag != IPP_TAG_UNKNOWN) || element < 0 || element > (*attr)->num_values || datalen < 0 || datalen > IPP_MAX_LENGTH)
    return (0);

 /*
  * Set the value and return...
  */

  if ((value = ipp_set_value(ipp, attr, element)) != NULL)
  {
    if ((int)((*attr)->value_tag) & IPP_TAG_CUPS_CONST)
    {
     /*
      * Just copy the pointer...
      */

      value->unknown.data   = (void *)data;
      value->unknown.length = datalen;
    }
    else
    {
     /*
      * Copy the data...
      */

      (*attr)->value_tag = IPP_TAG_STRING;

      if (value->unknown.data)
      {
       /*
	* Free previous data...
	*/

	free(value->unknown.data);

	value->unknown.data   = NULL;
        value->unknown.length = 0;
      }

      if (datalen > 0)
      {
	void	*temp;			/* Temporary data pointer */

	if ((temp = malloc((size_t)datalen)) != NULL)