fromhexstr
uint8_t *fromhexstr(uint8_t *, const char *, size_t);
if (fromhexstr($$.value + $$.length + i,
if (fromhexstr($$.value + $$.length, $2,
if (fromhexstr($$.value + $$.length, $2,
if (fromhexstr($$.value + $$.length, $2,
uint8_t *fromhexstr(uint8_t *, const char *, size_t);