TCP文件传输实验.doc

TCP文件传输 Client #include stdafx.h #pragma comment(lib,ws2_32.lib) #include Winsock2.h #includestdio.h #include string.h #includememory.h #define MAX_BUF 65535 int main() {WSAData wsaData; int err=WSAStartup(WINSOCK_VERSION,wsaData); if(0!=err) {return -1;} SOCKET sock=socket(AF_INET,SOCK_STREAM,0); if(INVALID_SOCKET == sock) {printf(socket() Failed:%d\n,WSAGetLastError()); WSACleanup();return -1;} sockaddr_in ServerAddr; ServerAddr.sin_family=AF_INET; ServerAddr.sin_port=htons(20000); ServerAddr.sin_addr.S_un.S_addr=inet_addr(172.17.194.8); err = connect(sock,(sockaddr *)ServerAddr, sizeof(ServerAddr)); if(SOCKET_ERROR==err) {printf(connect()Failed:%d\n,WSAGetLastError()); closesocket(sock);WSACleanup();return -1;} char data[]={0}; printf(请输入文件名：（如D:\\1.txt）\n); gets(data); int sByte=send(sock,data,strlen(data),0); if(SOCKET_ERROR==sByte) {printf(send()Faild:%d\n,WSAGetLastError()); closesocket(sock);WSACleanup();return -1;} shutdown(sock,SD_SEND); char rbuff[MAX_BUF]; char path[20]={0}; printf(请输入写入文件路径：（如：D:\\2.txt）\n); gets(path); FILE *fp=fopen(path,wb); if(!fp) {printf(打开文件失败!);return 1;} else{printf(文件已经打开，等待传输...\n);} while(1) {memset(rbuff,0,MAX_BUF); int rByte=recv(sock,rbuff,MAX_BUF,0); if(SOCKET_ERROR==rByte) {printf(recv()Faild:%d\n,WSAGetLastError()); closesocket(sock);WSACleanup();return -1;} if(0==rByte) {printf(Connection is closed.\n); break;} fwrite(rbuff,1,MAX_BUF,fp); printf(写入的文件内容为：\n %s\n,rbuff);} fclose(fp); closesocket(sock); WSACleanup(); return 0; } server #include stdafx.h #pragma comment(lib,ws2_32.lib) #include Winsock2.h #includestdio.h #include string.h #includememory.h #define MAX_BUF 65535 int _tmain(int argc, _TCHAR* argv[]) {WSAData wsaData; int err=WSAStartup(WINSOCK_VERSION,wsaData); if(0!=err){return -1;} SOCKET sock=socket(AF_INET,SOCK_STREAM,0); if(INVALID_SOCKET == sock) {printf(socket() Failed:%d\n,WSAGetLastError()); WSACleanup();return -1;} sockadd