dhcpv4: notify DHCP ACK and RELEASE via ubus

[project/odhcpd.git] / src / odhcpd.c

diff --git a/src/odhcpd.c b/src/odhcpd.c
index 13697b7..97a6de9 100644 (file)
--- a/src/odhcpd.c
+++ b/src/odhcpd.c
@@ -466,6 +466,16 @@ void odhcpd_hexlify(char *dst, const uint8_t *src, size_t len)
        *dst = 0;
 }
 
+const char *odhcpd_print_mac(const uint8_t *mac, const size_t len)
+{
+       static char buf[32];
+
+       snprintf(buf, sizeof(buf), "%02x", mac[0]);
+       for (size_t i = 1, j = 2; i < len && j < sizeof(buf); i++, j += 3)
+               snprintf(buf + j, sizeof(buf) - j, ":%02x", mac[i]);
+
+       return buf;
+}
 
 int odhcpd_bmemcmp(const void *av, const void *bv, size_t bits)
 {