Function httpGetSubField2

cups/http.c:1367–1492

 */

char *					/* O - Value or @code NULL@ */
httpGetSubField2(http_t       *http,	/* I - HTTP connection */
                 http_field_t field,	/* I - Field index */
                 const char   *name,	/* I - Name of sub-field */
		 char         *value,	/* O - Value string */
		 int          valuelen)	/* I - Size of value buffer */
{
  const char	*fptr;			/* Pointer into field */
  char		temp[HTTP_MAX_VALUE],	/* Temporary buffer for name */
		*ptr,			/* Pointer into string buffer */
		*end;			/* End of value buffer */

  DEBUG_printf(("2httpGetSubField2(http=%p, field=%d, name=\"%s\", value=%p, valuelen=%d)", (void *)http, field, name, (void *)value, valuelen));

  if (value)
    *value = '\0';

  if (!http || !name || !value || valuelen < 2 ||
      field <= HTTP_FIELD_UNKNOWN || field >= HTTP_FIELD_MAX || !http->fields[field])
    return (NULL);

  end = value + valuelen - 1;

  for (fptr = http->fields[field]; *fptr;)
  {
   /*
    * Skip leading whitespace...
    */

    while (_cups_isspace(*fptr))
      fptr ++;

    if (*fptr == ',')
    {
      fptr ++;
      continue;
    }

   /*
    * Get the sub-field name...
    */

    for (ptr = temp;
         *fptr && *fptr != '=' && !_cups_isspace(*fptr) &&
	     ptr < (temp + sizeof(temp) - 1);
         *ptr++ = *fptr++);

    *ptr = '\0';

    DEBUG_printf(("4httpGetSubField2: name=\"%s\"", temp));

   /*
    * Skip trailing chars up to the '='...
    */

    while (_cups_isspace(*fptr))
      fptr ++;