基于ipv6的socket通信(TCP)
http://blog.csdn.net/masikkk/article/details/5722258
一 服务器端
#include <winsock2.h> #include <ws2tcpip.h> #include <iostream.h> #include "tpipv6.h" // 所需库连接 #pragma comment (lib,"Ws2_32.lib") void main() { WSADATA wsaData; //版本协商 if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) { cout<<"装载socket失败!"<<endl; return ; } SOCKET server_sock, client_sock; //服务器端和客户端套接字 //addrinfo结构体是为了消除IPv6协议与IPv4协议之间的差异，编制统一的程序而追加的结构。并且允许多个IPv4地址或IPv6地址链成链表 struct addrinfo server_addr , //服务器端地址信息 *res=NULL; //若有多个地址，res是地址信息链表指针 memset(&server_addr,0,sizeof(server_addr));//如果没有这句话就会出现绑定错误,也就是在调用getaddrinfo()之前该参数必须清0 server_addr.ai_family = AF_INET6; //地址簇,这里指定是ipv6协议,其值可以是 AF_INET:ipv4, AF_INET6:ipv6 server_addr.ai_socktype = SOCK_STREAM; //套接字类型,这里是流式,其值可以是 SOCK_STREAM:流式, SOCK_DGRAM:数据报, SOCK_RAW:原始套接字 server_addr.ai_protocol = IPPROTO_TCP; //传输层协议,这里是TCP协议,其值可以是: IPPROTO_TCP:TCP, IPPROTO_UDP:UDP, 若为0系统根据套接字类型自动选择 int result; result = getaddrinfo("3ffe:3600:21:3000::1", "2000", &server_addr, &res); //解析本机地址, 服务器地址 监听端口 if(result != 0)//地址解析正确时返回0 { cout<<"服务器地址解析错误!"<<endl; return ; } server_sock = socket(res->ai_family,res->ai_socktype,res->ai_protocol); //创建服务器端socket if(server_sock == INVALID_SOCKET) { cout<<"创建服务器socket失败!"<<endl; return ; } if(bind(server_sock, res->ai_addr, res->ai_addrlen) == SOCKET_ERROR) //绑定 { cout<<"服务器端绑定失败!"<<endl; return ; } if( listen(server_sock ,2) == SOCKET_ERROR ) //监听 { cout<<"服务器端监听失败!"<<endl; return; } // struct sockaddr_in6 client_addr; //客户端地址 struct sockaddr_storage client_addr; //结构体sockaddr_storage有足够大的空间来存储任何类型的sockaddr int clientaddr_len = sizeof(client_addr); //客户端地址长度 while(1) { client_sock = accept(server_sock,(struct sockaddr*)&client_addr,&clientaddr_len);//接受客户端连接 if(client_sock == INVALID_SOCKET) { cout<<"接受客户端连接失败!"<<endl; continue; //继续 } // cout<<"连接来自:"<<inet_pton(client_addr.sin6_addr)<<endl; char buf[256];//发送和接收缓冲区 int nRecv=0; while(1) { cout<<"服务器端请输入:"; cin>>buf; send(client_sock,buf,256,0); nRecv = recv(client_sock,buf,256,0); if(nRecv>0) { buf[nRecv]='/0'; cout<<"服务器收到:"<<buf<<endl; } } } closesocket(server_sock);//关闭服务器端套接字 closesocket(client_sock);//关闭客户端套接字 }
二 客户端
#include <winsock2.h> #include <ws2tcpip.h> #include <iostream.h> #include "tpipv6.h" // 所需库连接 #pragma comment (lib,"Ws2_32.lib") void main() { WSADATA wsaData; if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) { cout<<"装载socket失败!"<<endl; return ; } SOCKET client_sock; //客户端本地套接字 struct addrinfo server_addr, *addrinfo=NULL; //服务器端地址 memset(&server_addr,0,sizeof(server_addr));//在getaddrinfo()之前必须清0 server_addr.ai_family = AF_INET6; //指定是ipv6协议 server_addr.ai_socktype = SOCK_STREAM; //流式 server_addr.ai_protocol = IPPROTO_TCP; //TCP协议,也可以是0，让系统自己选 int result; result = getaddrinfo("3ffe:3600:21:3000::1","2000",&server_addr,&addrinfo); //服务器端ipv6地址, 服务器监听的端口 if(result !=0)//地址解析正确时返回0 { cout<<"客户端解析服务器地址失败!"<<endl; return; } client_sock = socket(addrinfo->ai_family,addrinfo->ai_socktype,addrinfo->ai_protocol); //创建客户端套接字 if(client_sock == INVALID_SOCKET) { cout<<"创建客户端socket失败!"<<endl; return; } if( connect(client_sock,addrinfo->ai_addr,addrinfo->ai_addrlen) == SOCKET_ERROR) //连接服务器 { cout<<"连接服务器出错!"<<endl; return; } char buf[256]; //发送和接收缓冲区 int nRecv=0; while(1) { nRecv=recv(client_sock,buf,256,0); if(nRecv>0) { buf[nRecv]='/0'; cout<<"客户端收到:"<<buf<<endl; } cout<<"客户端请输入:"; cin>>buf; send(client_sock,buf,256,0); } closesocket(client_sock); //关闭客户端套接字 }
