clear addr buffer before calling getsockname

diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 29877465cf31e1632f20002aaa813852607a4ccf..59d730cf0b75e52c6312cb0cde333d1f02e2c539 100644 (file)
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -671,6 +671,7 @@ BUILD_FUNC_DEF_2(PySocketSock_getsockname,PySocketSockObject *,s, PyObject *,arg
                return NULL;
        if (!getsockaddrlen(s, &addrlen))
                return NULL;
+       memset(addrbuf, 0, addrlen);
        Py_BEGIN_ALLOW_THREADS
        res = getsockname(s->sock_fd, (struct sockaddr *) addrbuf, &addrlen);
        Py_END_ALLOW_THREADS