From 7336ffbd41b0132d1a89ee20d46db3b47e459192 Mon Sep 17 00:00:00 2001
From: emanuele-f <black.silver@hotmail.it>
Date: Fri, 20 May 2022 15:35:17 +0200
Subject: [PATCH] Ensure zdtun_parse_pkt initializes the zdtun_pkt_t

---
 zdtun.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/zdtun.c b/zdtun.c
index 9f30799..7554b72 100644
--- a/zdtun.c
+++ b/zdtun.c
@@ -876,13 +876,13 @@ static int is_upper_layer(int proto) {
 /* ******************************************************* */
 
 int zdtun_parse_pkt(zdtun_t *tun, const char *_pkt_buf, uint16_t pkt_len, zdtun_pkt_t *pkt) {
-  if (pkt_len < IPV4_HEADER_LEN) {
+  memset(pkt, 0, sizeof(zdtun_pkt_t));
+
+  if(pkt_len < IPV4_HEADER_LEN) {
     debug("Ignoring non IP packet (len: %d)", pkt_len);
     return -1;
   }
 
-  memset(pkt, 0, sizeof(zdtun_pkt_t));
-
   char *pkt_buf = (char *)_pkt_buf; /* needed to set the zdtun_pkt_t pointers */
   uint8_t ipver = (*pkt_buf) >> 4;
   uint8_t ipproto;