Function cups_auth_param

cups/auth.c:616–713

 */

static const char *				/* O - Parameter value or @code NULL@ if not present */
cups_auth_param(const char *scheme,		/* I - Pointer to auth data */
                const char *name,		/* I - Name of parameter */
                char       *value,		/* I - Value buffer */
                size_t     valsize)		/* I - Size of value buffer */
{
  char		*valptr = value,		/* Pointer into value buffer */
      		*valend = value + valsize - 1;	/* Pointer to end of buffer */
  size_t	namelen = strlen(name);		/* Name length */
  int		param;				/* Is this a parameter? */


  DEBUG_printf(("8cups_auth_param(scheme=\"%s\", name=\"%s\", value=%p, valsize=%d)", scheme, name, (void *)value, (int)valsize));

  while (!isspace(*scheme & 255) && *scheme)
    scheme ++;

  while (*scheme)
  {
    while (isspace(*scheme & 255) || *scheme == ',')
      scheme ++;

    if (!strncmp(scheme, name, namelen) && scheme[namelen] == '=')
    {
     /*
      * Found the parameter, copy the value...
      */

      scheme += namelen + 1;
      if (*scheme == '\"')
      {
        scheme ++;

	while (*scheme && *scheme != '\"')
	{
	  if (valptr < valend)
	    *valptr++ = *scheme;

	  scheme ++;
	}
      }
      else
      {
	while (*scheme && strchr("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~+/=", *scheme))
	{
	  if (valptr < valend)
	    *valptr++ = *scheme;

	  scheme ++;
	}
      }

      *valptr = '\0';

      DEBUG_printf(("9cups_auth_param: Returning \"%s\".", value));

      return (value);
    }