VC SOCKET 压缩通信学习

Server................
// Server.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "zlib.h"
#include <WinSock2.h>
#include <Windows.h>
#include <stdio.h>
#pragma comment(lib,"ws2_32.lib")
#pragma comment(lib,"ZLib.lib")
#define PORT 4000
#define LOCAL_HOST "192.168.1.100"

DWORD WINAPI createproc(LPVOID lpParment)
{
    SOCKET server = (SOCKET)lpParment;
    char recvbuf[MAX_PATH] = {0};
    char sendbuf[MAX_PATH] = {0};
    int err= 0;

    while (true)
    {
        unsigned long recvLen=sizeof(recvbuf),recLen=sizeof(recvbuf),stLen=sizeof(recvbuf);
        char unresvbuf[MAX_PATH] = {0};
    //    memset(recvbuf,0x00,sizeof(recvbuf));
        err = recv(server,recvbuf,MAX_PATH,0);

        uncompress((BYTE*)unresvbuf,&recLen,(BYTE*)recvbuf,stLen);


        if (err == SOCKET_ERROR)
        {
            printf("Recv msg error\r\n");
            break;
        }else
        {
            printf("Recv msg :%s\r\n",unresvbuf);
        }

        char com[MAX_PATH] = {0};
        char strDst[1024]={0};
        memset(sendbuf,0x00,sizeof(sendbuf));
        gets(sendbuf);
        unsigned long srcLen=sizeof(sendbuf),bufLen=sizeof(sendbuf),dstLen=sizeof(sendbuf);

        compress((BYTE*)com,&bufLen,(BYTE*)sendbuf,srcLen);
//        printf("压缩长度:%d\r\n 压缩以后的内容:%s\r\n==============\r\n",bufLen,com);

//        uncompress((BYTE*)strDst,&dstLen,(BYTE*)com,bufLen);
//        printf("解压缩长度:%d\r\n解压缩以后的长度:%s\r\n",dstLen,strDst);

        err = send(server,com,(int)strlen(com),0);
        if (err == SOCKET_ERROR)
        {
            printf("Send msg error\r\n");
        //return -1;
            break;
        }else
        {
            printf("Send Msg:%s\r\n",sendbuf);
        }
    }
    return 0;
}

int main(int argc, _TCHAR* argv[])
{
    WSADATA wsadata;
    SOCKET Serversocket,Clientsocket;
    struct sockaddr_in LocalAddr,clientaddr;
    HANDLE hThread;
    int err = 0;
    if (WSAStartup(MAKEWORD(2,2),&wsadata) != 0)
    {
        printf("Wsa init error\r\n");
        return -1;
    }
    Serversocket = socket(AF_INET,SOCK_STREAM,0);
    if (Serversocket == INVALID_SOCKET)
    {
        printf("Serversocket Error\r\n");
        return -1;
    }
    LocalAddr.sin_family = AF_INET;
    LocalAddr.sin_port = htons(PORT);
    LocalAddr .sin_addr.S_un.S_addr = inet_addr(LOCAL_HOST);
    memset(LocalAddr.sin_zero,0x00,8);

    err = bind(Serversocket,(struct sockaddr*)&LocalAddr,sizeof(LocalAddr));
    if (err != 0)
    {
        printf("Bind Port error\r\n");
        return -1;
    }

    err = listen(Serversocket,10);
    if (err != 0)
    {
        printf("Listen error\r\n");
        return -1;
    }

    while (true)
    {
/*
        char com[MAX_PATH] = {0};
        char xxoo[MAX_PATH] = "Nimagebi...caonima";

         unsigned long srcLen=sizeof(xxoo),bufLen=sizeof(xxoo),dstLen=sizeof(xxoo);
         char strDst[1024]={0};
         compress((BYTE*)com,&bufLen,(BYTE*)xxoo,srcLen);
         printf("/nAfter Compressed Length:%d\r\nCompressed String:%s\r\n==============\r\n",bufLen,com);

         uncompress((BYTE*)strDst,&dstLen,(BYTE*)com,bufLen);
         printf("/nAfter UnCompressed Length:%d\r\nUnCompressed String:%s\r\n",dstLen,strDst);
*/
        int addrlen = sizeof(clientaddr);
        Clientsocket = accept(Serversocket,(struct sockaddr*)&clientaddr,&addrlen);
        if (Clientsocket == INVALID_SOCKET)
        {
            printf("Clientsocket Error\r\n");
            //return -1;
            break;
        }

        printf("Have client connect herf:%s ---> %d\r\n",inet_ntoa(clientaddr.sin_addr),clientaddr.sin_port);

        hThread = CreateThread(NULL,0,createproc,(LPVOID)Clientsocket,0,NULL); //新建立线程，如果不简历，相互通信几句就卡死了。奇怪。

        if (hThread == NULL)
        {
            printf("New Create thread error\r\n");
            break;
        }else
        {
            printf("New create Thread susccess\r\rn");
        }
        CloseHandle(hThread);

    }
    closesocket(Clientsocket);
    closesocket(Serversocket);
    WSACleanup();
    return 0;
}

 

Client

 

// Client.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "zlib.h"
#include<winsock2.h>
#include <windows.h>
#include <stdio.h>
#pragma  comment(lib,"ws2_32.lib")
#pragma comment(lib,"Zlib.lib")
#define PORT 4000
#define Local_host "192.168.1.100"

int main(int argc,char** argv)
{
    WSADATA wsadata;
    SOCKET localsocket;
    sockaddr_in localaddr;
    char sendbuf[MAX_PATH] = {0};
    char recvbuf[MAX_PATH] = {0};
    int locallen = 0;
    int  ret = 0;

    if (WSAStartup(MAKEWORD(1,1),&wsadata) != 0)
    {
        printf("wSA STARTinit error\r\n");
        return -1;
    }
    localsocket = socket(AF_INET,SOCK_STREAM,0);
    if (localsocket == INVALID_SOCKET)
    {
        printf("localsocket error\r\b");
        return -1;
    }

    localaddr.sin_addr.s_addr = inet_addr(Local_host);
    localaddr.sin_port = htons(PORT);
    localaddr.sin_family = AF_INET;
    
    ret = connect(localsocket,(sockaddr*)&localaddr,sizeof(localaddr));
    if (ret == SOCKET_ERROR)
    {
        printf("Connect error\r\n");
        return -1;
    }

    while (true)
    {
        memset(sendbuf,0,sizeof(sendbuf));
        memset(recvbuf,0,sizeof(recvbuf));
        char sendres[MAX_PATH] = {0};
        char unsendres[MAX_PATH] = {0};
        unsigned long SendLen=sizeof(sendbuf),sufLen=sizeof(sendbuf),stLen=sizeof(sendbuf);

        gets(sendbuf);

        compress((BYTE*)sendres,&sufLen,(BYTE*)sendbuf,stLen);
//        uncompress((BYTE*)unsendres,&stLen,(BYTE*)sendres,SendLen);
//        printf("解压缩以后的内容:%s",unsendres);
        ret = send(localsocket,sendres,(int)strlen(sendres),0);
        if (ret == INVALID_SOCKET)
        {
            printf("Ret send msg error\r\n");
            break;
        }


        char com[MAX_PATH] = {0};
        char strDst[MAX_PATH]={0};
        ret = recv(localsocket,recvbuf,MAX_PATH,0);
        unsigned long srcLen=sizeof(recvbuf),bufLen=sizeof(recvbuf),dstLen=sizeof(recvbuf);
        uncompress(( BYTE*)com,&dstLen,( BYTE*)recvbuf,bufLen);

        if (ret == INVALID_SOCKET)
        {
            printf("Recv msg error\r\n");
            break;

        }else
        {
            //printf("Recv buf is :%s\r\n",recvbuf);
            printf("Recv msg susscess :%s\r\n",com);
        }

    }
    closesocket(localsocket);
    WSACleanup();
    return 0;
}