[PATCH] Abstract address UNIX sockets not binding properly (by capnbry@gmail.com...

[project/luci.git] / libs / nixio / src / bind.c

diff --git a/libs/nixio/src/bind.c b/libs/nixio/src/bind.c
index 7112059..68e1df8 100644 (file)
--- a/libs/nixio/src/bind.c
+++ b/libs/nixio/src/bind.c
@@ -193,15 +193,15 @@ static int nixio_sock__bind_connect(lua_State *L, int do_bind) {
 
                struct sockaddr_un addr;
                addr.sun_family = AF_UNIX;
-               luaL_argcheck(L, pathlen < sizeof(addr.sun_path), 2, "out of range");
-               strncpy(addr.sun_path, path, sizeof(addr.sun_path));
+               luaL_argcheck(L, pathlen <= sizeof(addr.sun_path), 2, "out of range");
+               memcpy(addr.sun_path, path, pathlen);
+               socklen_t alen = sizeof(sa_family_t) + pathlen;
 
                if (do_bind) {
-                       status = bind(sock->fd, (struct sockaddr*)&addr, sizeof(addr));
+                       status = bind(sock->fd, (struct sockaddr*)&addr, alen);
                } else {
                        do {
-                               status = connect(sock->fd, (struct sockaddr*)&addr,
-                                               sizeof(addr));
+                               status = connect(sock->fd, (struct sockaddr*)&addr, alen);
                        } while (status == -1 && errno == EINTR);
                }
 #endif