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;
}