ClientServer socket编程.doc

Server/Client socket编程/ 客户端#include #include #include #include using namespace std;#pragma comment(lib,ws2_32.lib)#define LEN 100#define SERVER_PORT 10000int main() WSADATA wsaData; int iResult;char dataLEN + 1;SOCKET sockfd;sockaddr_in saddr; iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); if (iResult != NO_ERROR) cerr WSAStartup failed: iResult endl;return 1; sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (sockfd = INVALID_SOCKET) cerr Error at socket(): WSAGetLastError() endl; WSACleanup(); return 1; saddr.sin_family = AF_INET; saddr.sin_addr.s_addr = inet_addr(127.0.0.1); saddr.sin_port = htons(SERVER_PORT); iResult = connect(sockfd, (sockaddr*)&saddr, sizeof(saddr);if (iResult = SOCKET_ERROR) closesocket (sockfd); cerr Unable to connect to server: WSAGetLastError() endl; WSACleanup(); return 1; strcpy(data, i am a client);iResult = send(sockfd, data, strlen(data), 0);if (iResult = SOCKET_ERROR) cerr send failed: WSAGetLastError() 0) cout 0);cout endl;closesocket(sockfd); WSACleanup();system(PAUSE); return 0;/ 服务器端#include #include #include #include using namespace std;#pragma comment(lib,ws2_32.lib)#define LEN 100#define SERVER_PORT 10000int main() WSADATA wsaData; int iResult;char dataLEN + 1 = 0;SOCKET sockfd, sockcon;sockaddr_in saddr, sacon;int addrlen = sizeof(sacon); iResult = WSAStartup(MAKEWORD(2, 2), &wsaData); if (iResult != NO_ERROR) cerr WSAStartup failed: iResult endl;return 1; sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); if (sockfd = INVALID_SOCKET) cerr Error at socket(): WSAGetLastError() endl; WSACleanup(); return 1; saddr.sin_addr.S_un.S_addr = htonl(INADDR_ANY); saddr.sin_family = AF_INET; saddr.sin_port = htons(SERVER_PORT); iResult = bind(sockfd, (sockaddr*)&saddr, sizeof(saddr);if (iResult = SOCKET_ERROR)cerr Error at bind(): WSAGetLastError() endl;closesocket(sockfd);WSACleanup();return 1; iResult = listen(sockfd, 5);if (iResult = SOCKET_ERROR)cerr Error at listen(): WSAGetLastError() endl;closesocket(sockfd);WSACleanup();return 1; sockcon = accept(sockfd, (sockaddr*)&sacon, &addrlen); if (sockcon = INVALID_SOCKET) cout Error at accept(): WSAGetL