用socket进行本机进程间通讯 (转)

服务器代码：
#include<winsock2.h>
#include<iostream>
#include<windows.h>
using namespace std;
//extern "C"{

int main(int argc, char** argv){
    int clientlen;
    struct sockaddr_in clientaddr;
    struct hostent *hp;
    char *haddrp;
    char chInfo[64];
    WSADATA wsaData;
   
    int ret = WSAStartup(MAKEWORD(2,2), &wsaData);
    if(ret != 0){
        cout << "Error" << endl;
        WSACleanup();
    }

    if (gethostname(chInfo, sizeof(chInfo)))
        cout<<"\n无法获取主机!\n ";
    cout << chInfo << endl;

    SOCKET serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if(serverSocket==INVALID_SOCKET){
        MessageBox(NULL, "创建套接字失败!", "Warning", MB_ICONEXCLAMATION);
        closesocket(serverSocket);
        WSACleanup();
    }

    sockaddr_in localaddr;
    localaddr.sin_addr.s_addr = htonl(INADDR_ANY);
    localaddr.sin_family = AF_INET;
    localaddr.sin_port = htons(6000);
    if(bind(serverSocket, (const struct sockaddr*)&localaddr, sizeof(localaddr)) == SOCKET_ERROR){
        MessageBox(0,"绑定地址失败!","Warning", MB_ICONEXCLAMATION);
        closesocket( serverSocket);
        WSACleanup();
    }

    listen(serverSocket, 5);

    while (true)
    {
        clientlen = sizeof(clientaddr);
        SOCKET connfd = accept(serverSocket, (struct sockaddr*) &clientaddr, &clientlen);
        hp = gethostbyaddr((const char*) &clientaddr.sin_addr.S_un, sizeof(clientaddr.sin_addr.S_un), AF_INET);
        haddrp = inet_ntoa(clientaddr.sin_addr);
        cout << "server connected to " << hp->h_name <<"( "<<haddrp<<" )"<<endl;

        int length;
        //char buffer[5];
        //if ((length = recv(connfd, buffer, 5, 0)) == SOCKET_ERROR)
        char buffer[10240];
        if ((length = recv(connfd, buffer, 10240, 0)) == SOCKET_ERROR)
            MessageBox(0,"接收失败!","Warning", MB_ICONEXCLAMATION);
        for(int i=0;i<length;i++)
            cout<<buffer[i];
        cout<<endl;

        closesocket(connfd);
    }
    closesocket( serverSocket);
    WSACleanup();
   
    return 0;
}

 

客户端代码：

C/C++ code

#include <winsock2.h>
#include <iostream>
#include <windows.h>
#include <memory.h>
using namespace std;
int main(){
struct hostent *hp;
struct in_addr addr;
struct sockaddr_in serverAddr;
WSADATA wsaData;
int ret = WSAStartup(MAKEWORD(2,2), &wsaData);
if(ret != 0){
cout << "Error" << endl;
WSACleanup();
}
SOCKET clientfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (clientfd == INVALID_SOCKET)
{
MessageBox(0,"创建套接字失败!","Warning", MB_ICONEXCLAMATION);
closesocket(clientfd);
WSACleanup();
}
addr.s_addr = inet_addr("192.168.168.135");
hp = gethostbyaddr((const char *)&addr,sizeof(addr),AF_INET);
memset(&serverAddr,'\0',sizeof(struct sockaddr_in));
memcpy((char*)&serverAddr.sin_addr,(char *)hp->h_addr_list[0],hp->h_length);    //OK
    serverAddr.sin_family = hp->h_addrtype;
serverAddr.sin_port = htons(6000);
if(connect(clientfd, (struct sockaddr *)&serverAddr, sizeof(serverAddr))<0)
cout<<"error"<<endl;
int length;
char buffer[5];
for(int i=0;i<5;i++)
buffer[i]='a';
if ((length = send(clientfd, buffer, 5, 0)) == SOCKET_ERROR)
MessageBox(0,"发送失败!","Warning", MB_ICONEXCLAMATION);
return 0;
}