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 <[email protected]>
Signed-off-by: Blue Swirl <[email protected]>

diff --git a/slirp/socket.c b/slirp/socket.c
index 8a257acc83f82fa6ac87df98060712ba58c09bdb..eaad77af8d51a896a25e0fe3d44ee4afb2a64f4b 100644 (file)
--- a/slirp/socket.c
+++ b/slirp/socket.c
@@ -587,6 +587,7 @@ tcp_listen(Slirp *slirp, u_int32_t haddr, u_int hport, u_int32_t laddr,
        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);