winsocket研究了一天的成果

//begin socket 一个套接字
hTcpSocket &＃61; socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (INVALID_SOCKET &＃61;&＃61; hTcpSocket)
{
MJS_LOG_ERROR("socket failed with error: \n");
WSACleanup();
return -1 ;
}//end

struct hostent
{char *h_name; //*h_name 表示的是主机的规范名char **h_aliases; //h_aliases 表示的是主机的别名int h_addrtype; //地址类型AF_INET&＃xff0c;还是AF_INET6int h_length; //IP地址占字节数char **h_addr_list; //IP地址列表
};

#include
#include
#include
#include
#include <string.h>
using namespace std;
#pragma comment(lib,"ws2_32.lib")#define PORT 8888
int main()
{//begin 初始化网络环境
WSADATA wsaData;if(WSAStartup(MAKEWORD(2,2),&wsaData)!&＃61;0){ //加载winsock2库printf("加载失败./n");return -1;}//end 初始化网络环境struct sockaddr_in servaddr; //服务器端地址memset(&servaddr, 0,sizeof(servaddr));servaddr.sin_family &＃61; AF_INET; //填写要连接的服务器地址信息servaddr.sin_addr.s_addr &＃61; htonl(INADDR_ANY); //inet_addr()将命令行中输入的点分IP地址转换为二进制表示的网络字节序IP地址servaddr.sin_port &＃61; htons(PORT);SOCKET socks &＃61; socket(AF_INET,SOCK_STREAM,0); //建立客户端流式套接口if(socks &＃61;&＃61; INVALID_SOCKET){printf("建立接口失败/n");return -1;}bind(socks,(struct sockaddr *)&servaddr,sizeof(servaddr)); //与服务器端建立连接listen(socks, 10); //将套接字置入监听模式并准备接受连接请求,请求10是连接队列的最大长度printf("正在连接......\n");struct sockaddr_in addrClient; int addrClient_len &＃61; sizeof(addrClient); while (1) { SOCKET sockc &＃61; accept(socks, (struct sockaddr *)&addrClient, &addrClient_len); //建立套接字用于通信char sen[100] &＃61; {0}; sprintf(sen,"%s", inet_ntoa(addrClient.sin_addr)); // 将客户端的IP地址存入c数组中send(sockc, sen, strlen(sen) &＃43; 1, 0); // 发送数据到客户端char receive[100] &＃61; {0};recv(sockc, receive, 100, 0); // 接收客户端数据printf("%s\n", receive); closesocket(sockc); } closesocket(socks);system("pause");return 0;
}

#include
#include
#include
#include
#include <string.h>
using namespace std;
#pragma comment(lib,"ws2_32.lib")
#define PORT 8888
int main()
{//begin 初始化网络环境
WSADATA wsaData;if(WSAStartup(MAKEWORD(2,2),&wsaData)!&＃61;0){ //加载winsock2库printf("加载失败/n");return -1;}//end 初始化网络环境struct sockaddr_in addrSrv;addrSrv.sin_family &＃61; AF_INET; addrSrv.sin_port &＃61; htons(PORT); addrSrv.sin_addr.s_addr &＃61; inet_addr("10.22.26.126"); //要连接的服务器的ip地址
SOCKET sockc &＃61; socket(AF_INET,SOCK_STREAM,0); //建立客户端流式套接口connect(sockc,(struct sockaddr *)&addrSrv,sizeof(addrSrv)); //与服务器进行连接char receive[250] &＃61; {0};recv(sockc, receive, 250, 0); // 接收客户端数据printf("%s\n", receive); send(sockc, "hello world", strlen("hello world") &＃43; 1, 0); closesocket(sockc); system("pause");return 0;
}