//下边的代码是介绍同步socket的用法：

//需要用到的lib，可能不全，请看sdk的help自己添加

esock.lib

//需要的头文件，可能不全，请看sdk的help自己添加
#include <in_sock.h>
#include <nifman.h>
#include <Es_sock.h>

#if defined __WINS__
_LIT(KConnectIP,"192.168.0.1");//连接的ip地址，换成测试的ip
#else
_LIT(KConnectIP,"10.0.0.172");//移动的cmwap代理网关
#endif

const int KConnectPort = 80;//端口

HBufC8 *SocketGetUrl(TDesC8 &geturl);

void TestSocket()
{
    _LIT8(KSendData, "POST http:://www.google.com.cn http/1.1\r\n\r\n");
    TBuf8<128> sendData(KSendData);
    HBufC8 *body = SocketGetUrl(sendData);
    if(body)
    {

        //服务器端返回的数据处理

        delete body;
    }

}

HBufC8 *SocketGetUrl(TDesC8 &geturl)
{
    RNif iNif;
    RSocket iSocket;
    TRequestStatus iStatus = KRequestPending;
    TBuf8<512> writeBuf(geturl);
    TBuf8<64> recvBuf;
    HBufC8 *iBuffer = NULL;
   
    iNif.Open();
    {
        RSocketServ iSocketServ;
        User::LeaveIfError(iSocketServ.Connect());
        TInetAddr iAddress;
        if (iAddress.Input(KConnectIP) == KErrNone)
        {
            User::LeaveIfError(iSocket.Open(iSocketServ, KAfInet, KSockStream, KProtocolInetTcp));
            iAddress.SetPort(KConnectPort);
           
            iStatus = KRequestPending;
            iSocket.Connect(iAddress, iStatus);
            User::WaitForRequest(iStatus);
            if (iStatus.Int() ==KErrNone)
            {
                iStatus = KRequestPending;
                iSocket.Write(writeBuf,iStatus);
                User::WaitForRequest(iStatus);
                if (iStatus.Int() ==KErrNone)
                {
                    TSockXfrLength iDummyLength;
                    TInt recvSize = 0;
                   
                    for(;;)
                    {
                        iStatus = KRequestPending;
                        iSocket.RecvOneOrMore(recvBuf, 0, iStatus, iDummyLength);
                        User::WaitForRequest(iStatus);
                       
                        if (iStatus.Int()==KErrNone)
                        {
                            recvSize += recvBuf.Length();
                            if(iBuffer==NULL)
                                iBuffer = HBufC8::NewL(recvSize);
                            else
                                iBuffer = iBuffer->ReAlloc(recvSize);
                            iBuffer->Des().Append(recvBuf);
                        }
                        else
                        {
                            break;
                        }
                    }
                }
            }
            iSocket.Close();
        }
       
        iSocketServ.Close();
    }
    iNif.Close();
    return iBuffer;
}

此段代码只是对socket用法的简单介绍，没有超时处理，如果要做超时处理的话，请自己添加。