Be sure to initialize sockaddr structure

Error: UNINIT (CWE-457): [#def30]
libslirp-4.3.0/src/udp.c:325: var_decl: Declaring variable "addr" without initializer.
libslirp-4.3.0/src/udp.c:342: uninit_use_in_call: Using uninitialized value "addr". Field "addr.sin_zero" is uninitialized when calling "bind".

Signed-off-by: Jindrich Novy <jnovy@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/udp.c b/src/udp.c
index 9ed1e74..0ad44d7 100644
--- a/src/udp.c
+++ b/src/udp.c
@@ -329,6 +329,7 @@ struct socket *udp_listen(Slirp *slirp, uint32_t haddr, unsigned hport,
     struct socket *so;
     socklen_t addrlen = sizeof(struct sockaddr_in);
 
+    memset(&addr, 0, sizeof(addr));
     so = socreate(slirp);
     so->s = slirp_socket(AF_INET, SOCK_DGRAM, 0);
     if (so->s < 0) {