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] = {};
char sendbuf[MAX_PATH] = {};
int err= ; while (true)
{
unsigned long recvLen=sizeof(recvbuf),recLen=sizeof(recvbuf),stLen=sizeof(recvbuf);
char unresvbuf[MAX_PATH] = {};
// memset(recvbuf,0x00,sizeof(recvbuf));
err = recv(server,recvbuf,MAX_PATH,); 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] = {};
char strDst[]={};
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),);
if (err == SOCKET_ERROR)
{
printf("Send msg error\r\n");
//return -1;
break;
}else
{
printf("Send Msg:%s\r\n",sendbuf);
}
}
return ;
} int main(int argc, _TCHAR* argv[])
{
WSADATA wsadata;
SOCKET Serversocket,Clientsocket;
struct sockaddr_in LocalAddr,clientaddr;
HANDLE hThread;
int err = ;
if (WSAStartup(MAKEWORD(,),&wsadata) != )
{
printf("Wsa init error\r\n");
return -;
}
Serversocket = socket(AF_INET,SOCK_STREAM,);
if (Serversocket == INVALID_SOCKET)
{
printf("Serversocket Error\r\n");
return -;
}
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,); err = bind(Serversocket,(struct sockaddr*)&LocalAddr,sizeof(LocalAddr));
if (err != )
{
printf("Bind Port error\r\n");
return -;
} err = listen(Serversocket,);
if (err != )
{
printf("Listen error\r\n");
return -;
} 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,,createproc,(LPVOID)Clientsocket,,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 ;
}
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] = {};
char recvbuf[MAX_PATH] = {};
int locallen = ;
int ret = ; if (WSAStartup(MAKEWORD(,),&wsadata) != )
{
printf("wSA STARTinit error\r\n");
return -;
}
localsocket = socket(AF_INET,SOCK_STREAM,);
if (localsocket == INVALID_SOCKET)
{
printf("localsocket error\r\b");
return -;
} 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 -;
} while (true)
{
memset(sendbuf,,sizeof(sendbuf));
memset(recvbuf,,sizeof(recvbuf));
char sendres[MAX_PATH] = {};
char unsendres[MAX_PATH] = {};
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),);
if (ret == INVALID_SOCKET)
{
printf("Ret send msg error\r\n");
break;
} char com[MAX_PATH] = {};
char strDst[MAX_PATH]={};
ret = recv(localsocket,recvbuf,MAX_PATH,);
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 ;
}
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