Merge tryconnect6 into inet_tryconnect.

src/inet.c

@@ -396,7 +396,7 @@ const char *inet_trydisconnect(p_socket ps, int family, p_timeout tm)
 /*-------------------------------------------------------------------------*\
 * Tries to connect to remote address (address, port)
 \*-------------------------------------------------------------------------*/
-const char *inet_tryconnect(p_socket ps, const char *address,
+const char *inet_tryconnect(p_socket ps, int *family, const char *address,
         const char *serv, p_timeout tm, struct addrinfo *connecthints)
 {
     struct addrinfo *iterator = NULL, *resolved = NULL;
@@ -410,6 +410,23 @@ const char *inet_tryconnect(p_socket ps, const char *address,
     }
     for (iterator = resolved; iterator; iterator = iterator->ai_next) {
         timeout_markstart(tm);
+        /* create new socket if necessary. if there was no
+         * bind, we need to create one for every new family
+         * that shows up while iterating. if there was a
+         * bind, all families will be the same and we will
+         * not enter this branch. */
+        if (*family != iterator->ai_family) {
+            socket_destroy(ps);
+            err = socket_strerror(socket_create(ps, iterator->ai_family, 
+                iterator->ai_socktype, iterator->ai_protocol));
+            if (err != NULL) {
+                freeaddrinfo(resolved);
+                return err;
+            }
+            *family = iterator->ai_family;
+            /* all sockets initially non-blocking */
+            socket_setnonblocking(ps);
+        }
         /* try connecting to remote address */
         err = socket_strerror(socket_connect(ps, (SA *) iterator->ai_addr, 
             (socklen_t) iterator->ai_addrlen, tm));
@@ -424,7 +441,8 @@ const char *inet_tryconnect(p_socket ps, const char *address,
 /*-------------------------------------------------------------------------*\
 * Tries to accept a socket
 \*-------------------------------------------------------------------------*/
-const char *inet_tryaccept(p_socket server, int family, p_socket client, p_timeout tm)
+const char *inet_tryaccept(p_socket server, int family, p_socket client, 
+    p_timeout tm)
 {
 	socklen_t len;
 	t_sockaddr_storage addr;

src/inet.h

@@ -26,7 +26,7 @@
 int inet_open(lua_State *L);
 
 const char *inet_trycreate(p_socket ps, int family, int type);
-const char *inet_tryconnect(p_socket ps, const char *address,
+const char *inet_tryconnect(p_socket ps, int *family, const char *address,
         const char *serv, p_timeout tm, struct addrinfo *connecthints);
 const char *inet_trybind(p_socket ps, const char *address, const char *serv,
         struct addrinfo *bindhints);

src/tcp.c

@@ -248,7 +248,8 @@ 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, &tcp->family, 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) {
@@ -388,20 +389,11 @@ static int global_create6(lua_State *L) {
     return tcp_create(L, AF_INET6);
 }
 
-const char *strfamily(int family) {
+#if 0
-    switch (family) {
-        case PF_UNSPEC: return "unspec";
-        case PF_INET: return "inet";
-        case PF_INET6: return "inet6";
-        default: return "invalid";
-    }
-}
-
 static const char *tryconnect6(const char *remoteaddr, const char *remoteserv,
     struct addrinfo *connecthints, p_tcp tcp) {
     struct addrinfo *iterator = NULL, *resolved = NULL;
     const char *err = NULL;
-    int i = 0;
     /* try resolving */
     err = socket_gaistrerror(getaddrinfo(remoteaddr, remoteserv,
                 connecthints, &resolved));
@@ -442,6 +434,7 @@ static const char *tryconnect6(const char *remoteaddr, const char *remoteserv,
     /* here, if err is set, we failed */
     return err;
 }
+#endif
 
 static int global_connect(lua_State *L) {
     const char *remoteaddr = luaL_checkstring(L, 1);
@@ -479,7 +472,8 @@ static int global_connect(lua_State *L) {
     connecthints.ai_socktype = SOCK_STREAM;
     /* make sure we try to connect only to the same family */
     connecthints.ai_family = bindhints.ai_family;
-    err = tryconnect6(remoteaddr, remoteserv, &connecthints, tcp);
+    err = inet_tryconnect(&tcp->sock, &tcp->family, remoteaddr, remoteserv,
+         &tcp->tm, &connecthints);
     if (err) {
         socket_destroy(&tcp->sock);
         lua_pushnil(L);

src/udp.c

@@ -376,7 +376,8 @@ static int meth_setpeername(lua_State *L) {
     /* make sure we try to connect only to the same family */
     connecthints.ai_family = udp->family;
     if (connecting) {
-        err = inet_tryconnect(&udp->sock, address, port, tm, &connecthints);
+        err = inet_tryconnect(&udp->sock, &udp->family, address, 
+            port, tm, &connecthints);
         if (err) {
             lua_pushnil(L);
             lua_pushstring(L, err);