/* It accepts all printable ASCII chars except for '#' which opens a comment. Please note that ' ' (space) while accepted is not a valid key name char.  */
static bool is_nvram_char(char c)
/* It accepts all printable ASCII chars except for '#' which opens a comment. Please note that ' ' (space) while accepted is not a valid key name char.  */
static bool is_nvram_char(char c)
{
	if (c == '#')
		return false;
	return (c >= 0x20 && c < 0x7f);
}