SOCKETS?

程序界面 一个MEMO 两个按钮 （一个LISTING 一个SEND）
程序功能 当按下LISTING时 程序处于LISTING状态
当按下LISTING时 程序可以发送BUF(MEMO)的数据到处于LISTING状态的电脑上！

帮我 看看这段代码又什么问题？

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
#include <winsock.h>
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
WSADATA ws;
SOCKET sock;
struct sockaddr_in server_addr;


//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Onlisten(void)
{
int bindflag,acceptflag,listenflag;
int iResult;
long lResult;
char strSubAddr[100], strBuffer[100];

lResult = WSAStartup(0x0101,&ws);
sock = socket(AF_INET,SOCK_STREAM,0);
if(sock<0)
ShowMessage("error!");
server_addr.sin_family=AF_INET;
server_addr.sin_addr.s_addr=INADDR_ANY;//本机地址
server_addr.sin_port=htons(10000);

bindflag=bind(sock,(struct sockaddr *)&server_addr,sizeof(struct sockaddr));

listenflag=listen(sock,2);//最大连接数据为2

if(listenflag<0)
{
ShowMessage("接受连接失败");
exit(1);
}
else
ShowMessage("Listing");
acceptflag=accept(sock,NULL,NULL);//null
if(acceptflag<0)
ShowMessage("接受连接失败");
//MessageBox("接受连接失败","出错",MB_ICONERROR);
}
void __fastcall TForm1::ButtonSendClick(TObject *Sender)
{
send(connectflag,"************欢迎来到************",100,0);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::ButtonListenClick(TObject *Sender)
{
Onlisten();
}
//