monitor: Don't pass NULL as src to memcpy

Skip the memcpy when len = 0
2019-10-28 14:42:01 -05:00 · 2019-10-28 14:42:01 -05:00 · 6c2b10b118
parent 37e6f6f08b
commit 6c2b10b118
1 changed files with 2 additions and 1 deletions
--- a/monitor/main.c
+++ b/monitor/main.c
@ -176,7 +176,8 @@ static size_t rta_add(void *rta_buf, unsigned short type, uint16_t len,

 	rta->rta_len = rta_len;
 	rta->rta_type = type;
-	memcpy(RTA_DATA(rta), data, len);
+	if (len)
+		memcpy(RTA_DATA(rta), data, len);

 	return RTA_SPACE(len);
 }