dns, bugfix: fix ipv6 address error.

Author: xicilion

fibjs/include/inetAddr.h

@@ -42,6 +42,14 @@ union inetAddr {
             addr6.sin6_family = PF_INET6;
     }
 
+    void init(sockaddr* addr)
+    {
+        if (addr->sa_family == PF_INET)
+            memmove(this, addr, sizeof(addr4));
+        else
+            memmove(this, addr, sizeof(addr6));
+    }
+
     void setPort(int32_t port)
     {
         addr4.sin_port = htons(port);

fibjs/src/net/net.cpp

@@ -37,9 +37,7 @@ result_t dns_base::resolve(exlib::string name, obj_ptr<NArray>& retVal, AsyncEve
     obj_ptr<NArray> arr = new NArray();
     for (ptr = result; ptr != NULL; ptr = ptr->ai_next) {
         inetAddr addr_info;
-        addr_info.init(addr_info.addr4.sin_family);
-
-        memcpy(&addr_info, ptr->ai_addr, addr_info.size());
+        addr_info.init(ptr->ai_addr);
         arr->append(addr_info.str());
     }