slirp: fix structure initialization in tcp_listen()

A data structure of type sockaddr_in is allocated from stack but not
properly initialized. This may lead to a failure in the bind() call
later on. Fixed by filling the contents of the structure with zeroes
before using it.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/socket.c b/socket.c
index 2e926aa..569fd84 100644
--- a/socket.c
+++ b/socket.c
@@ -593,6 +593,7 @@ struct socket *tcp_listen(Slirp *slirp, u_int32_t haddr, u_int hport,
     struct socket *so;
     int s, opt = 1;
     socklen_t addrlen = sizeof(addr);
+    memset(&addr, 0, addrlen);
 
     DEBUG_CALL("tcp_listen");
     DEBUG_ARG("haddr = %x", haddr);