Fix udp:setpeername("*")

There seems to be a curious difference between MacOS and
Linux and I am not sure if this is documented. When you
break a "connection" on Mac OS, you only eliminate the peer
association, but the local address remains bound. On Linux,
breaking a "connection" eliminates the binding to the local
address. Have you guys ever come accross this?

Another irritating difference is that connect() returns the
error EAFNOSUPPORT on Mac OS. I am going to ignore all
errors when the reason for calling connect() is simply to
break the "connection".

1 files changed, 2 insertions, 2 deletions

diff --git a/src/tcp.c b/src/tcp.c
index 2085937..5c85ae0 100644
--- a/src/tcp.c
+++ b/src/tcp.c
@@ -222,6 +222,7 @@ 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);
@@ -247,8 +248,7 @@ static int meth_connect(lua_State *L)
     /* make sure we try to connect only to the same family */
     connecthints.ai_family = tcp->family;
     timeout_markstart(&tcp->tm);
-    err = inet_tryconnect(&tcp->sock, address, port,
-                    &tcp->tm, &connecthints);
+    err = inet_tryconnect(&tcp->sock, address, port, &tcp->tm, &connecthints);
     /* have to set the class even if it failed due to non-blocking connects */
     auxiliar_setclass(L, "tcp{client}", 1);
     if (err) {