Github user nsuke commented on a diff in the pull request:

    https://github.com/apache/thrift/pull/628#discussion_r45577791
  
    --- Diff: lib/cpp/src/thrift/server/TNonblockingServer.cpp ---
    @@ -1105,10 +1113,17 @@ void TNonblockingServer::listenSocket(THRIFT_SOCKET 
s) {
       serverSocket_ = s;
     
       if (!port_) {
    -    sockaddr_in addr;
    -    socklen_t size = sizeof(addr);
    -    if (!getsockname(serverSocket_, reinterpret_cast<sockaddr*>(&addr), 
&size)) {
    -      listenPort_ = ntohs(addr.sin_port);
    +    #ifdef _WIN32
    +      struct sockaddr_storage addr;
    +      struct sockaddr_in *pAddr = (sockaddr_in *) &addr;
    +      socklen_t size = sizeof(addr);
    +    #else
    +      struct sockaddr_in addr;
    +      struct sockaddr_in *pAddr = &addr;
    +      socklen_t size = sizeof(addr);
    +    #endif
    --- End diff --
    
    Maybe `getsockname` does not truncate the result but instead fails when 
struct is too small ?
    Is it whole Win32 API spec or mingw only bug ?


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