stun: memset saddr before binding

We need to zero out data before we actually do the bind, otherwise
uninitialized crap can be in saddr.

Found by coverty scanner.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/stun.c b/stun.c
index 4ea4eac..e39e76a 100644
--- a/stun.c
+++ b/stun.c
@@ -33,7 +33,7 @@
 struct stun_header {
 	uint16_t type;
 	uint16_t len;
-	uint32_t magic_cookie; 
+	uint32_t magic_cookie;
 	uint32_t transid[3];
 };
 
@@ -74,6 +74,7 @@ static int stun_test(const char *server_ip, int server_port,
 
 	set_reuseaddr(sock);
 
+	memset(&saddr, 0, sizeof(saddr));
 	saddr.sin_family = PF_INET;
 	saddr.sin_port = htons(tun_port);
 	saddr.sin_addr.s_addr = INADDR_ANY;