Don't overflow the buffer.

1 files changed, 1 insertions, 1 deletions

diff --git a/net.c b/net.c
index 34b3b2a9..71575e91 100644
--- 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 < sizeof(hwaddr_buffer); i++) {
+	for (i = 0; i < hwlen && i < sizeof(hwaddr_buffer) / 3; i++) {
 		if (i > 0)
 			*p ++= ':';
 		p += snprintf(p, 3, "%.2x", hwaddr[i]);