win32简单的sockeTCP协议通信
什么也不说了看代码
首先是服务端代码
1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <WinSock2.h> 4 #include <Windows.h> 5 #include <process.h> 6 #include <string.h> 7 #define BUFFSIZE 1024 8 #pragma comment(lib,"ws2_32.lib") //lib库 9 unsigned int WINAPI ThreadProc(LPVOID lpArgs); 10 typedef struct _tagSOCKET 11 { 12 SOCKET m_clientSocket; 13 SOCKET m_ServerSocket; 14 sockaddr_in m_ClientAddr; 15 }TAGSOCKET,*PTAGSOCKET; 16 HANDLE g_Thread = NULL; 17 int main(void) 18 { 19 WSADATA wsData; 20 //建立一个服务器socket 21 SOCKET hServer; 22 int hError; 23 WORD wVersion = MAKEWORD(2,2); 24 if(WSAStartup(wVersion,&wsData))//初始化 25 { 26 WSACleanup(); 27 return 0; 28 } 29 hServer = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); //创建套接字 30 hError = WSAGetLastError(); 31 if (hServer==INVALID_SOCKET) 32 { 33 printf("错误代码%d\r\n",hError); 34 if(SOCKET_ERROR != closesocket(hServer)) //关闭套接字 35 WSACleanup(); //终止使用流式网络连接 36 return 0; 37 } 38 //创建服务监听的地址端口 39 sockaddr_in addrServer; 40 addrServer.sin_family = AF_INET; 41 addrServer.sin_port = htons(8888); 42 addrServer.sin_addr.S_un.S_addr = htonl(INADDR_ANY); //INADDR_ANY 意思是接收当前机器上任何配置的本地ip连接 43 //绑定与相关联的套接字本地地址 44 if(SOCKET_ERROR == bind(hServer,(sockaddr*)&addrServer,sizeof(addrServer))) 45 { 46 printf("绑定失败\r\n"); 47 if(SOCKET_ERROR != closesocket(hServer)) //关闭套接字 48 WSACleanup(); //终止使用流式网络连接 49 return 0; 50 } 51 //在socket上监听 52 if(SOCKET_ERROR==listen(hServer,SOMAXCONN)) 53 { 54 printf("监听失败\r\n"); 55 if(SOCKET_ERROR != closesocket(hServer)) //关闭套接字 56 WSACleanup(); //终止使用流式网络连接 57 return 0; 58 } 59 //接收来自客户端的连接请求信息 60 SOCKET cLientSocket; 61 sockaddr_in clientAddr; 62 int nLent = sizeof clientAddr; 63 cLientSocket = accept(hServer,(sockaddr*)&clientAddr,&nLent); 64 if(cLientSocket== SOCKET_ERROR) 65 { 66 printf("错误的客户socket连接\r\n"); 67 if (SOCKET_ERROR !=closesocket(hServer)) 68 { 69 WSACleanup(); 70 return 0; 71 } 72 } 73 TAGSOCKET uSerdata; 74 ZeroMemory(&uSerdata,sizeof(TAGSOCKET)); 75 uSerdata.m_clientSocket = cLientSocket; 76 uSerdata.m_ServerSocket = hServer; 77 uSerdata.m_ClientAddr = clientAddr; 78 //循环接收客户端数据 79 g_Thread = (HANDLE)_beginthreadex(NULL,NULL,ThreadProc,(LPVOID)&uSerdata,NULL,NULL); 80 WaitForSingleObject(g_Thread,INFINITE); 81 CloseHandle(g_Thread); 82 /*in_addr addr; 83 addr.S_un.S_addr = inet_addr("192.168.1.1"); //将字符串ip转换成in_addr 84 //htonl() 主机转TCP 该 htonl函数可用于在主机字节顺序IPv4地址转换为网络字节顺序的IPv4地址。 85 //该功能不会检查hostlong参数是否是有效的IPv4地址。 86 // htons() 87 //inet_ntoa函数 将in_addr类型转换成字符串格式 88 //htons() 该 htons函数可用于将IP端口号主机字节顺序转换成网络字节顺序的IP端口号 89 */ 90 91 system("pause"); 92 93 return 0; 94 } 95 unsigned int WINAPI ThreadProc(LPVOID lpArgs) 96 { 97 //接收来自客户发送的数据 98 PTAGSOCKET tempSocket = (PTAGSOCKET)lpArgs; 99 if(tempSocket->m_clientSocket == SOCKET_ERROR || tempSocket->m_ServerSocket == SOCKET_ERROR) 100 { 101 closesocket(tempSocket->m_clientSocket); 102 closesocket(tempSocket->m_ServerSocket); 103 WSACleanup(); 104 return 0; 105 } 106 char szbuf[BUFFSIZE]; 107 int nRecverror = SOCKET_ERROR; 108 while(TRUE) 109 { 110 ZeroMemory(szbuf,BUFFSIZE); 111 nRecverror = recv(tempSocket->m_clientSocket,szbuf,BUFFSIZE,NULL); 112 if(nRecverror==SOCKET_ERROR) 113 { 114 closesocket(tempSocket->m_clientSocket); 115 closesocket(tempSocket->m_ServerSocket); 116 WSACleanup(); 117 break; 118 } 119 char sprintfbuf[BUFFSIZE]; 120 ZeroMemory(sprintfbuf,BUFFSIZE); 121 sprintf_s(sprintfbuf,"Ip:%s:\t数据:%s\r\n",inet_ntoa(tempSocket->m_ClientAddr.sin_addr),szbuf); 122 printf("%s\r\n",sprintfbuf); 123 if (!_stricmp(szbuf,"close")) 124 { 125 nRecverror = send(tempSocket->m_clientSocket,"close",strlen("close")+1,NULL); 126 if (nRecverror== SOCKET_ERROR) 127 { 128 closesocket(tempSocket->m_clientSocket); 129 closesocket(tempSocket->m_ServerSocket); 130 WSACleanup(); 131 break; 132 } 133 break; 134 }else 135 { 136 sprintf_s(sprintfbuf,"已经接收到您发送的信息:%s\r\n",szbuf); 137 nRecverror = send(tempSocket->m_clientSocket,sprintfbuf,strlen(sprintfbuf),NULL); 138 if (nRecverror== SOCKET_ERROR) 139 { 140 closesocket(tempSocket->m_clientSocket); 141 closesocket(tempSocket->m_ServerSocket); 142 WSACleanup(); 143 break; 144 } 145 } 146 } 147 printf("程序即将退出\r\n"); 148 closesocket(tempSocket->m_clientSocket); 149 closesocket(tempSocket->m_ServerSocket); 150 WSACleanup(); 151 return 0; 152 }
下面是客户端代码
1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <WinSock2.h> 4 #include <Windows.h> 5 #pragma comment(lib,"ws2_32.lib") 6 #define BUFFSIZE 1024 7 int main(void) 8 { 9 WSADATA wSdata; 10 // char hostName[256]={0}; 11 SOCKET hClientSocket; 12 WORD wVerison = MAKEWORD(2,2); 13 sockaddr_in sockeaddr; 14 // PHOSTENT hoStent; 15 if(WSAStartup(wVerison,&wSdata)) 16 { 17 WSACleanup(); 18 return 0; 19 } 20 hClientSocket = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); 21 if(hClientSocket==INVALID_SOCKET) 22 { 23 WSACleanup(); 24 return 0; 25 } 26 /* gethostname(hostName,256); 27 hoStent = gethostbyname(hostName); 28 if(!hoStent) 29 { 30 closesocket(hClientSocket); 31 WSACleanup(); 32 return 0; 33 }*/ 34 ZeroMemory(&sockeaddr,sizeof(sockaddr_in)); 35 sockeaddr.sin_family = AF_INET; 36 // printf("%s\r\n",inet_ntoa(*(in_addr*)hoStent->h_addr)); 37 sockeaddr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1"); 38 sockeaddr.sin_port = htons(8888); 39 //然后链接远程服务器 40 if(SOCKET_ERROR == connect(hClientSocket,(sockaddr*)&sockeaddr,sizeof(sockaddr_in))) 41 { 42 closesocket(hClientSocket); 43 WSACleanup(); 44 return 0; 45 } 46 char szbuf[BUFFSIZE]; 47 int Nerror = SOCKET_ERROR; 48 while(TRUE) 49 { 50 ZeroMemory(szbuf,BUFFSIZE); 51 char sztemp[BUFFSIZE]={0}; 52 ZeroMemory(sztemp,BUFFSIZE); 53 printf("请输入你要发送的内容:\r\n"); 54 scanf("%s",sztemp); 55 Nerror = send(hClientSocket,sztemp,strlen(sztemp)+1,0); 56 if (Nerror==SOCKET_ERROR) 57 { 58 break; 59 } 60 Nerror = recv(hClientSocket,szbuf,BUFFSIZE,0); 61 if (Nerror==SOCKET_ERROR) 62 { 63 break; 64 }else 65 { 66 printf("接收到的数据:%s\r\n",szbuf); 67 } 68 if (!_stricmp(szbuf,"close")) 69 { 70 printf("即将关闭程序\r\n"); 71 break; 72 } 73 } 74 closesocket(hClientSocket); 75 WSACleanup(); 76 system("pause"); 77 return 0; 78 }
最后的效果就是这样
