服务器端的socket怎么判断客户端的IP地址

服务器端的socket如何判断客户端的IP地址？
如下代码可行否：
……

C/C++ code

SOCKADDR mAddr;int mLen;Accept(*mClientSocket,mAddr,mLen);if( !strncmp(mAddr.sa_data,"192.168.10.11",mLen) ){   printf("和客户192.168.10.11连接");}else if( !strncmp(mAddr.sa_data,"192.168.10.12",mLen) ){   printf("和客户192.168.10.12连接");}

C/C++ code

    SOCKADDR_IN        clientAddr;    int socketLen = sizeof(SOCKADDR_IN);    m_pListenSocket->Accept(*pClient,(SOCKADDR*)&clientAddr, &socketLen);    unsigned long m_lIP;m_lIP = clientAddr.sin_addr.S_un.S_addr;short m_nPort;m_nPort= clientAddr.sin_port;