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linux与windows间socket通信实例

第七根弦 2014 年 3 月 12 日 未分类 发表评论 (0)

linux端：

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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <unistd.h>
#include <arpa/inet.h>
#define MYPORT 3333
#define BACKLOG 10
int main()
{
int sockfd, new_fd;
struct sockaddr_in my_addr;
struct sockaddr_in their_addr;
socklen_t sin_size;
if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
    perror("socket");
    exit(1);
}
my_addr.sin_family = AF_INET;
my_addr.sin_port = htons(MYPORT);
my_addr.sin_addr.s_addr = htonl(INADDR_ANY);
bzero(&(my_addr.sin_zero),0);
if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(struct sockaddr))== -1) {
    perror("bind");
    exit(1);
}
if (listen(sockfd, BACKLOG) == -1) {
    perror("listen");
    exit(1);
}
while(1) {
sin_size = sizeof(struct sockaddr_in);
if ((new_fd = accept(sockfd, (struct sockaddr *)&their_addr,&sin_size)) == -1) {
    perror("accept");
    continue;
}
printf("server: got connection from %s\n",inet_ntoa(their_addr.sin_addr));
if (!fork()) {
if (send(new_fd, "Hello, world!\n", 14, 0) == -1)
perror("send");
close(new_fd);
exit(0);
}
close(new_fd);
while(waitpid(-1,NULL,WNOHANG) > 0);
}
}

window端：

C++
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// client.cpp : Defines the entry point for the console application.
//
 
#include "stdafx.h"
#include<Winsock2.h>
//#include<Winsock.h>
//#include <windows.h>
#include<stdio.h>
#pragma comment (lib,"WS2_32.lib")
 
#include<stdlib.h>
//using namespace std;
 
int _tmain(int argc, _TCHAR* argv[])
{
int i;
char recvBuffer[255] = {0};
//WORD wVersionRequested; //typedef unsigned short WORD; 2字节
WSADATA wsaData;
//WSADATA 包含了Windows Socket执行的信息。
int err;
//wsaData.wVersion =MAKEWORD(1,1);
//这个宏创建一个被指定变量连接而成的WORD变量。返回一个WORD变量。
//第一个是socket库版本，第二个是取得的版本号。
//err=WSAStartup(wVersionRequested,&wsaData); //return 0 if successful
err=WSAStartup(MAKEWORD(1,1),&wsaData); //return 0 if successful
if(err!=0){
printf("Call WSAStart ERROR!");
exit(1);
}   //终止对WinSock库的使用
//if(LOBYTE(wsaData.wVersion)!=1|| HIBYTE(wsaData.wHighVersion)!=1)
//{
//  WSACleanup();
//  exit(0);
//}
//typedef unsigined int   SOCKET;//创建用与监听的套接字
SOCKET SocketClient=socket(AF_INET,SOCK_STREAM,0);       //0表示让系统自己选择协议
//定义地址结构体//填入服务器端的ip地址和端口号
SOCKADDR_IN addrSrv;
//转换为TCP/IP network byte order //32bit  
addrSrv.sin_addr.S_un.S_addr=inet_addr("172.17.51.81"); //ip 172.17.51.81
addrSrv.sin_family=AF_INET;                              //family address
addrSrv.sin_port=htons(3333);                            //16bit端口号
printf("Connect to server...\n");
i=connect(SocketClient,(sockaddr *)&addrSrv,sizeof(SOCKADDR_IN)); //指向要建立连接的数据结构  
if(i<0){
printf("%i\n",WSAGetLastError());
printf("连接到172.17.51.81:3333错误!");
exit(1);
}
recv(SocketClient,recvBuffer,255,0);
printf("%s\n",recvBuffer);   //send(socketClient,recvBuffer,20,0);
closesocket(SocketClient);
WSACleanup();
return 0;
}

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