We may change size of hwaddr_buffer, so just use sizeof.

diff --git a/net.c b/net.c
index 15b80075fc524d59be1f6c91d73d600ffc2dd506..34b3b2a99fd8f57c647e6aecc81cf5d1bfbd2073 100644 (file)
--- a/net.c
+++ b/net.c
@@ -138,7 +138,7 @@ hwaddr_ntoa(const unsigned char *hwaddr, size_t hwlen)
        char *p = hwaddr_buffer;
        size_t i;
 
-       for (i = 0; i < hwlen && i < HWADDR_LEN; i++) {
+       for (i = 0; i < hwlen && i < sizeof(hwaddr_buffer); i++) {
                if (i > 0)
                        *p ++= ':';
                p += snprintf(p, 3, "%.2x", hwaddr[i]);