Throw an error if the ServerSocket host argument is invalid.

runtime/bin/socket_win.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/builtin.h"
 #include "bin/eventhandler.h"
 #include "bin/socket.h"
 
 bool Socket::Initialize() {
   int err;
@@ skipping 193 matching lines @@
     free(buffer);
     return NULL;
   }
   return buffer;
 }
 
 
 intptr_t ServerSocket::CreateBindListen(const char* host,
                                         intptr_t port,
                                         intptr_t backlog) {
+  in_addr_t s_addr = TEMP_FAILURE_RETRY(inet_addr(host));
+  if (s_addr == INADDR_NONE) {
+    return -5;
+  }
+
   SOCKET s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
   if (s == INVALID_SOCKET) {
     return -1;
   }
 
   BOOL optval = true;
   int status = setsockopt(s,
                           SOL_SOCKET,
                           SO_REUSEADDR,
                           reinterpret_cast<const char*>(&optval),
                           sizeof(optval));
   if (status == SOCKET_ERROR) {
     DWORD rc = WSAGetLastError();
     closesocket(s);
     SetLastError(rc);
     return -1;
   }
 
   sockaddr_in addr;
   memset(&addr, 0, sizeof(addr));
   addr.sin_family = AF_INET;
-  addr.sin_addr.s_addr = inet_addr(host);
+  addr.sin_addr.s_addr = s_addr;
   addr.sin_port = htons(port);
   status = bind(s,
                 reinterpret_cast<struct sockaddr *>(&addr),
                 sizeof(addr));
   if (status == SOCKET_ERROR) {
     DWORD rc = WSAGetLastError();
     closesocket(s);
     SetLastError(rc);
     return -1;
   }
 
   status = listen(s, backlog);
   if (status == SOCKET_ERROR) {
     DWORD rc = WSAGetLastError();
     closesocket(s);
     SetLastError(rc);
     return -1;
   }
 
   ListenSocket* listen_socket = new ListenSocket(s);
   return reinterpret_cast<intptr_t>(listen_socket);
 }