2 files changed, 3 insertions, 1 deletions

diff --git a/src/inet.c b/src/inet.c
index b28852b..0469756 100644
--- a/src/inet.c
+++ b/src/inet.c
@@ -478,6 +478,9 @@ const char *inet_trybind(p_socket ps, const char *address, const char *serv,
     struct addrinfo *iterator = NULL, *resolved = NULL;
     const char *err = NULL;
     t_socket sock = *ps;
+    /* translate luasocket special values to C */
+    if (strcmp(address, "*") == 0) address = NULL;
+    if (!serv) serv = "0";
     /* try resolving */
     err = socket_gaistrerror(getaddrinfo(address, serv, bindhints, &resolved));
     if (err) {
diff --git a/src/tcp.c b/src/tcp.c
index ca8eec2..60c1e8a 100644
--- a/src/tcp.c
+++ b/src/tcp.c
@@ -222,7 +222,6 @@ static int meth_bind(lua_State *L)
     bindhints.ai_socktype = SOCK_STREAM;
     bindhints.ai_family = tcp->family;
     bindhints.ai_flags = AI_PASSIVE;
-    address = strcmp(address, "*")? address: NULL;
     err = inet_trybind(&tcp->sock, address, port, &bindhints);
     if (err) {
         lua_pushnil(L);