基于TCP的通信 客户端

#include <WINSOCK2.H>  

#include <stdio.h>
// socket   套接字

#pragma comment (lib,"Ws2_32")   //library 

DWORD WINAPI ThreadInput(LPVOID lpParam);
DWORD WINAPI ThreadOutput(LPVOID lpParam);

SOCKET  sClient;

void main()
{
    //first    初始化DLL
    WSADATA wsadata;
    if (WSAStartup(MAKEWORD(,),&wsadata)!=)
    {
        printf("Init Error\n");

        return ;
    }

    //second  创建套接字

    sClient = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); 

    if (sClient == INVALID_SOCKET)
    {
        printf("Create Listen Is Error\n");

        return;
    }

    sockaddr_in  LocalAddr;

    LocalAddr.sin_family = AF_INET;

    LocalAddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");   //127.0.0.1

    LocalAddr.sin_port = htons();

    if (connect(sClient,(sockaddr*)&LocalAddr,sizeof(LocalAddr))==SOCKET_ERROR)
    {

    //    WSAENETDOWN
        int a = GetLastError();
        closesocket(sClient);

        printf("Connect Is Error\n");

        return;
    }

    HANDLE hThread[];

    //这里是整个程序的核心部分我们一定要那个管道图

    hThread[] = CreateThread(NULL,,ThreadOutput,NULL,,NULL);

    hThread[] = CreateThread(NULL,,ThreadInput,NULL,,NULL);

    WaitForMultipleObjects(,hThread,TRUE,INFINITE);

}

DWORD WINAPI ThreadInput(LPVOID lpParam)
{
    SOCKET s = sClient;

    //该线程函数是从套接字中获取信息并且通过管道注入cmd的工作函数

    char Buffer[] = {};

    DWORD dWrite = ;
    DWORD dwRecvd = ;
    while (TRUE)
    {

        scanf("%s",Buffer);

        send(s,Buffer,strlen(Buffer),);
    }

    return ;
}

DWORD WINAPI ThreadOutput(LPVOID lpParam)
{

     SOCKET s = sClient;

    //该线程函数是从被控端返给控端信息的线程函数

    char Buffer[]={};
    while (TRUE)
    {

        int Ret = recv(s,Buffer,,);

        if(Ret<)
        {
            break;
        }

        Buffer[Ret]='\0';

        printf("%s",Buffer);

    }

    return ;
}