char *gnrc_netif_addr_to_str(char *out, size_t out_len, const uint8_t *addr, size_t addr_len) { size_t i; if (out_len < (3 * addr_len)) { /* 2 for every byte, 1 for ':' or '\0' */ return NULL; } out[0] = '\0'; for (i = 0; i < addr_len; i++) { out[(3 * i)] = _half_byte_to_char(addr[i] >> 4); out[(3 * i) + 1] = _half_byte_to_char(addr[i] & 0xf); if (i != (addr_len - 1)) { out[(3 * i) + 2] = ':'; } else { out[(3 * i) + 2] = '\0'; } } return out; }
char *gnrc_netif_addr_to_str(const uint8_t *addr, size_t addr_len, char *out) { char *res = out; assert((out != NULL) && ((addr != NULL) || (addr_len == 0U))); out[0] = '\0'; for (size_t i = 0; i < addr_len; i++) { *(out++) = _half_byte_to_char(*(addr) >> 4); *(out++) = _half_byte_to_char(*(addr++) & 0xf); *(out++) = (i == (addr_len - 1)) ? '\0' : ':'; } return res; }