mac_colon_addr
extern const char *mac_colon_addr(const uint8_t *, size_t, char *, size_t);
(void) mac_colon_addr((uint8_t *)(arh + 1),
(void) mac_colon_addr((uint8_t *)(arh + 1),
(void) mac_colon_addr(haddr, haddrlen, hbuf, sizeof (hbuf));
mac_colon_addr(haddr, haddrlen, hbuf, sizeof (hbuf)));
mac_colon_addr(haddr, hlen, hbuf,