Function ippAttributeString

cups/ipp-support.c:657–865

 */

size_t					/* O - Number of bytes less nul */
ippAttributeString(
    ipp_attribute_t *attr,		/* I - Attribute */
    char            *buffer,		/* I - String buffer or NULL */
    size_t          bufsize)		/* I - Size of string buffer */
{
  int		i;			/* Looping var */
  char		*bufptr,		/* Pointer into buffer */
		*bufend,		/* End of buffer */
		temp[256];		/* Temporary string */
  const char	*ptr,			/* Pointer into string */
		*end;			/* Pointer to end of string */
  _ipp_value_t	*val;			/* Current value */


  if (!attr || !attr->name)
  {
    if (buffer)
      *buffer = '\0';

    return (0);
  }

  bufptr = buffer;
  if (buffer)
    bufend = buffer + bufsize - 1;
  else
    bufend = NULL;

  for (i = attr->num_values, val = attr->values; i > 0; i --, val ++)
  {
    if (val > attr->values)
    {
      if (buffer && bufptr < bufend)
        *bufptr++ = ',';
      else
        bufptr ++;
    }

    switch (attr->value_tag & ~IPP_TAG_CUPS_CONST)
    {
      case IPP_TAG_ENUM :
          ptr = ippEnumString(attr->name, val->integer);

          if (buffer && bufptr < bufend)
            strlcpy(bufptr, ptr, (size_t)(bufend - bufptr + 1));

          bufptr += strlen(ptr);
          break;

      case IPP_TAG_INTEGER :
          if (buffer && bufptr < bufend)
            bufptr += snprintf(bufptr, (size_t)(bufend - bufptr + 1), "%d", val->integer);
          else
            bufptr += snprintf(temp, sizeof(temp), "%d", val->integer);
          break;

      case IPP_TAG_BOOLEAN :