when using remote_endpoint().address() of asio, make failed( undefined reference to `if_indextoname(unsigned int, char*)

[jjmin.liang]

Hi guys,

I'm writing a tcp server in the ESP32, everything work fine, but when I add the following code to my program, it will make failed, and tell me

undefined reference to `if_indextoname(unsigned int, char*)

.
this is the code will cause the link error:

Code: Select all

this->acceptor->async_accept([this](std::error_code ec, tcp::socket socket) {
        if (!ec) {
            socket.remote_endpoint().address().to_string().c_str(); // this code will cause link error
            ......
        }
        ......
 }

any tips? Thank you!

[jjmin.liang]

I finally solved it. just use raw socket func: getpeername. done!