网络程序设计作业获取计算机安装的协议.doc

网络程序设计作业P93 获取计算机安装的协议#include stdafx.h#include WinSock2.h#include#pragma comment(lib,Ws2_32.lib)using namespace std;int main(int argc,char* argv)WSADATA sock_data;LPWSAPROTOCOL_INFO protocol_info_ptr;WSAStartup(MAKEWORD(2,2),&sock_data);DWORD len=0;WSAEnumProtocols(NULL,NULL,&len);protocol_info_ptr=(LPWSAPROTOCOL_INFO) new BYTElen+1;int num=WSAEnumProtocols(NULL,&protocol_info_ptr0,&len);for(int i=0;inum;i+,protocol_info_ptr+)cout#index=iendliSocketType=iSocketTypeendldwServiceFlags1=dwServiceFlags1endliAddressFamily=iAddressFamilyendliProtocol=iProtocolendldwCatalogEntryId=dwCatalogEntryIdendldwMessageSize=dwMessageSizeendldwProviderFlags=dwProviderFlagsendliMaxSockAddr=iMaxSockAddrendliMinSockAddr=iMinSockAddrendliNetworkByteOrder=iNetworkByteOrderendliProtocolMaxOffset=iProtocolMaxOffsetendliSecurityScheme=iSecuritySchemeendliVersion=iVersionendlProtocolChain.ChainEntries=ProtocolChain.ChainEntriesendlProtocolChain.ChainLen=ProtocolChain.ChainLenendlszProtocol=szProtocolendlendl;protocol_info_ptr-=num;delete protocol_info_ptr;WSACleanup();return 0;P96/服务器端代码#include WinSock.h#include windows.h#include stdio.h#pragma comment(lib,wsock32.lib)#define RECV_PORT 2000#define SEND_PORT 3000#define MAX_FILESIZE 32*1024SOCKET sock,sock1;sockaddr_in ServerAddr;sockaddr_in ClientAddr;struct Filedatachar ffname30;char ffdataMAX_FILESIZE;int len;DataPacket;int Addrlen;DWORD StartSock()WSADATA WSAData;if(WSAStartup(MAKEWORD(2,2),&WSAData)!=0)printf(sock init fail!n);return(-1);return(1);DWORD CreateSocket()sock=socket(AF_INET,SOCK_STREAM,0);if(sock=SOCKET_ERROR)printf(sock create fail!);WSACleanup();return (-1);ServerAddr.sin_family=AF_INET;ServerAddr.sin_addr.s_addr=htonl(INADDR_ANY);ServerAddr.sin_port=htons(RECV_PORT);if(bind(sock,(struct sockaddr*)&ServerAdde,sizeof(struct sockaddr_in)=SOCKET_ERROR)printf(sock bind error code!);return(-1);return(1);DWORD WriteFile(char *fname,char *fdata,int flen)int i;FILE *fp;fp=fopen(fname,w);if(fp=NULL)printf(cannot open this filen);i=0;for(i=0;iflen;i+)fputc(fdatai,fp);fclose(fp);return(1);DWORD ConnectProcess()Addrlen=sizeof(sockaddr_in);if(listen(sock,5)0)printf(Listen error);return(-1);printf(Listening.n);for(;)sock1=accept(sock,(struct sockaddr FAR*)&ClientAddr,&Addrlen);for(;)memset(DataPacket.ffname,0,30);memset(DataPacket.ffdata,0,MAX_FILESIZE);DataPacket.len=0;if(recv(sock1,(char*)&DataPacket,sizeof(DataPacket),0)MAX_FILESIZE)printf(your file is too bign);fclose(fp);return(0);memcpy(&Senddatai,buffer,count);i+=count;fclose(fp);Senddatai=0;strcpy(DataPacket.ffname,fname);menmcpy(DataPacket.ffdata,Senddata,Filesize);DataPacket.len=Filesize;printf(%s %dn,DataPacket.ffname,DataPacket.len);return(1);DWORD TCPSendPacket(struct Filedata Packet)int length;length=send(sock,(char*)&Packet,sizeof(DataPacket),0);if(lenght=0)printf(send Filedata errorn);closesocket(sock);WSACleanup();return(-1);return(1);int main()char sendfilename30;StartSock();CallServer();printf(connect ok!n);while(1)printf(Input your filename to send:n);scanf(%s,sendfilename);if(strcmp(sendfilename,exit)=0)break;if(GetFile(sendfilename)=0)continue;TCPSendPacket(DataPacket);closesocket(sock);return 0;4.4.2TCP实现客户机/服务器聊天BOOL CCSocketDlg:OnInitDialog()CDialog:OnInitDialog();.count=0;m_list.InsertColumn(0,消息);m_list.SetColumnWidth(0,435);m_edit.SetLimitText(99);for(int i=0;iGetMainWnd();msgcount=dlg-getcount();if(msgcount=-1)loop=0;if(loop)s=1;dlg-msgsockmsgcount=accept(dlg-sock,(sockaddr*)&(dlg-serv),&(dlg-addlen);if(dlg-msgsockmsgcount=INVALID_SOCKET)dlg-m_edit.SetWindowText(Error accept);elseAfxBeginThread(thread,0);dlg-SetForegroundWindow();dlg-m_list.InsertItem(dlg-count+,连接成功);dlg-m_list.InsertItem(dlg-count+,inet_ntoa(dlg-serv.sin_addr);dlg-m_list.Scroll(size);dlg-m_button.EnableWindow(TRUE);while(s!=SOCKET_ERROR)s=recv(dlg-msgsockmsgcount,buff,100,0);dlg-SetForegroundWindow();if(s!=SOCKET_ERROR)dlg-m_list.Scroll(size);dlg-sendtoall(,buff);send(dlgmsgsockmsgcount,Disconnected,100,0);dlg-m_list.InsertItem(dlg-count+,Disconnected);dlg-m_list.Scroll(size);dlg-msgsockmsgcount=NULL;for(int i=0;imsgsocki!=NULL)flag=1;if(flag!=1)dlg-m_button.EnableWindow(FALSE);closesocket(dlg-msgsockmsgcount;AfxEndThread(0);return 0;int CCSocketDlg:getcount()for(int i=0;i50;i+)if(msgsocki=NULL)return i;return -1;void CCSocketDlg:sendtoall(SOCKET s,char*buff)for(int i=0;i50;i+)if(msgsocki!=NULL&msgsocki!=s)send(msgsocki,buff,100,0);/void CCSocketDlg:OnButton1()char buff100;m_edit.GetWindowText(buff,99);m_edit.SetWindowText();m_listInserItem(count+,buff);CSize size;size.cx=0;size.cy=30;m_list.Scroll(size);for(int i=0;iGetMainWnd();dlg-m_connect.EnableWindow(FALSE);dlg-m_disconnect.EnableWindow(TRUE);while(connect(dlg-clisock,(sockaddr*&(dlg-cli),sizeof(dlg-cli)&dlg-ee!=0)dlg-m_edit.SetWindowText(等待.);for(int i=0;i=65000;i+)for(int j=0;jcli.sin_addr.s_addr=inet_addr(arrayaddcount+);if(dlg-ee=1)dlg-m_list.InsertItem(dlg-count+,连接成功);dlg-m_button1.EnableWindow(TRUE);dlg-SetForegroundWindow();while(s!=SOCKET_ERROR&dlg-ee!=0)s=recv(dlg-clisock,buff,100,0);dlg-SetForegroundWindow();if(s!=SOCKET_ERROR&dlg-ee!=0)dlg-m_list.InsertItem(dlg-count+,buff);dlg-m_list.Scroll(size);send(dlg-clisock,Disconnected,100,0);dlg-m_button1.EnableWindow(FALSE);dlg-m_connect.EnableWindow(TRUE);dlg-m_disconnect.EnableWindow(FALSE);closesocket(dlg-clisock);AfxEndThread(0);return 0;/void CCSocketcliDlg:OnButton1()char buff100;CSize size;size.cx=0;size.cy=30;m_edit.GetWindowText(buff,99);m_edit.SetWindowText();m_list.InsetItem(count+,buff);m_list.Scroll(size);send(clisock,buff,100,0);/2、客户端/连接按钮的代码void CCSocketcliDlg:OnButton2()char ipaddress35;m_edit2.GetWindowText(ipaddress,30);cli.sin_addr.s_addr=inet_addr(ipaddress);cli.sin_family=AF_INET;cli.sin_port=5000;/htons(5000);clisock=socket(AF_INET,SOCK_STREAM,0);ee=1;AfxBeginThread(thread,0);UINT thread(LPVOID v) char buff100; char array2530=127.0.0.1,(等);CSize size;size.cx=0;size.cy=30;int s=1,addcount=0;CCSocketcliDlg *dlg=(CCSocketcliDlg*)AfxGetApp()-GetMainWnd();dlg-m_connect.EnableWindow(FALSE);dlg-m_disconnect.EnableWindow(TRUE); while(connect(dlg-clisock,(sockaddr*)&()dlg-cli),sizeof(dlg-cli)&dlg-ee!=0)dlg-m_edit.SetWindowText(等待.);for(int i=0;i65000;i+) for(int j=0;jcli.sin_addr.s_addr=inet_addr(arrayaddcount+);if(dlg-ee=1)dlg-m_list.InsertItem(dlg-count+,连接成功);dlg-m_button1.EnableWindow(TRUE);dlg-SetForegroundWindow();while(s!=SOCKET_ERROR & dlg-ee!=0)s=recv(dlg-clisock,buff,100,0);dlg-SetForegroundWindow();if(s!=SOCKET_ERROR & dlg-ee!=0)dlg-m_list.InsertItem(dlg-count+,buff);dlg-m_list.Scroll(size);send(dlg-clisock,Disconnected,100,0);dlg-m_button1.EnableWindow(FALSE);dlg-m_conect.EnableWindow(FALSE);closesocket(dlg-clisock);AfxEndThread(0);return 0;void CCSocketcliDlg:OnButton1()char buff100;CSize size;size.cx=0;size.cy=30;m_edit.GetWindowText(buff,99);m_edit.SetWindowText();m_list.InsertItem(count+,buff);m_list.Scroll(size);send(clisock,buff,100,0);111-119CComm:CComm()ListenSocket=INVALID_SOCKET; /开始设置为INVALID_SOCKET#ifdef _WIN32 /如果是Win32系统WORD VersionRequested=MAKEWORD(1,1);WSADATA wsadata;WSAStartup(VersionRequested,&wsadata); if(wsadata.wVersion!=VersionRequested) /提示版本错误信息printf(Wrong version or WinSock not loadedn);fflush(0);#endif CComm:CComm()if(ListenSocket!=INVALID_SOCKET)closesocket(ListenSocket); /如果已创建则关闭#ifdef _WIN32WSACleanup();#endif bool CComm:Listen(int PortNum)/创建socketListenSocket=socket( PF_INET,SOCK_DGRAM, 0);if(ListenSocket=INVALID_SOCKET)printf(error:socket创建失败n);fflush(0)return false;/设定地址srv.sin_family = PF_INET;srv.sin_addr.s_addr = htonl(INADDR_ANY);/确定绑定端口srv.sin_port=htons(PortNum);if(bind(ListenSocket,(struct sockaddr*)&srv,sizeof(srv)!=0)printf(error:绑定失败n); fflush(0);closesocket(ListenSocket);return false;int ThreadID; /线程IDDWORD thread;/调用CreateThread创建线程ThreadID=(int)CreateThread( NULL,0, (LPTHREAD_START_ROUTINE)(CComm:ListenThread),(void*)this,0,&thread );ThreadID=ThreadID?0:1; /如果成功，则返回0if(ThreadID) /如果不为0，则线程创建失败printf(线程创建失败);return false; elsereturn true; void CComm:ListenThread(void *data)char buf4096;CComm *Comm=(CComm*)data;int len=sizeof(Comm-client); /获得地址长度while(1) /获得数据，一直循环/接收数据int result=recvfrom( Comm-ListenSocket,buf, sizeof(buf)-1,0,(sockaddr*)&Comm-client,(socklen_t*)&len); if(result0) /如果获得数据bufresult=0;/获得发送端的地址和端口printf(Message received from host %s port %in,inet_ntoa(Comm-client.sin_addr),ntohs(Comm- client.sin_port);printf(%s,buf); /输出接收到的数据fflush(0); bool CComm:SendMsg(char *Msg, int Len, char *host, short port)signed int Sent;hostent *hostdata;if(atoi(host) /IP地址是否标准u_long ip=inet_addr(host);hostdata=gethostbyaddr(char*)&ip,sizeof(ip),PF_INET);else /否则可能是计算机名hostdata=gethostbyname(host);if(!hostdata)printf(获得主机名错误n);fflush(0);return false;sockaddr_in dest; /设定目标地址dest/发送目标地址dest.sin_family=PF_INET;dest.sin_addr=*(in_addr*)(hostdata-h_addr_list0);dest.sin_port=htons(port);printf(信息已被发送到主机%s 端口为%in,inet_ntoa(dest.sin_addr),ntohs(dest.sin_port);/调用sendto发送数据Sent=sendto(ListenSocket,Msg,Len,0,(sockaddr*)&dest,sizeof( sockaddr_in);if(Sent!=Len) printf(错误发送UDP信息n);fflush(0);return false;return true;int main(int argc,char *argv )char buffer4096; /缓冲区short listeningport; /要绑定的绑定接收端口short destport; /要发送的对方端口char *desthost; /目标端口printf(Initialization.n);listeningport=2000; /设定UDP绑定端口destport=3000; /设定发送端口desthost=127.0.0.1; /设定目标地址CComm myComm;if(!myComm.Listen(listeningport) /绑定地址printf(端口%d绑定失败n,listeningport);return 0;printf(聊天程序成功建立：退出nn);while(fgets(buffer,sizeof(buffer),stdin) /获得输入数据 /发送数据到目标地址myComm.SendMsg(buffer,strlen(buffer),desthost,destport);return 0; /定义ICMP头typedef struct icmp_hdrunsigned char icmp_type;unsigned char icmp_code;unsigned short icmp_checksum;unsigned short icmp_id;unsigned short icmp_sequence;unsigned long icmp_timestamp; ICMP_HDR, *PICMP_HDR, FAR *LPICMP_HDR; ICMP_HDR *icmp = NULL;SOCKET s;SOCKADDR_STORAGE dest;char bufsizeof(ICMP_HDR) + 32;icmp = (ICMP_HDR *)buf;icmp-icmp_type = 8; /定义echo请求类型icmp-icmp_code = 0;icmp-icmp_id = GetCurrentProcessId();icmp-icmp_checksum = 0; /将校验和域清零icmp-icmp_sequence = 0;icmp-icmp_timestamp = GetTickCount();memset(&bufsizeof(ICMP_HDR), , 32); /随机填充负载端/计算ICMP头和负载的校验和，checksum()函数的实现参见下文Ping程序icmp-icmp_checksum = checksum(buf, sizeof(ICMP_HDR)+32);s = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP); /初始化目标SOCKADDR_STORAGE(SOCKADDR_IN *)&dest)-sin_family = AF_INET;(SOCKADDR_IN *)&dest)-sin_port = htons(0);(SOCKADDR_IN *)&dest)-sin_addr.s_addr =inet_addr(1.2.3.4);sendto(s, buf, sizeof(ICMP_HDR)+32, 0, (SOCKADDR *)&dest, sizeof(dest); /120-127/iphdr.h的详细代码为:/Sample:Protocol header definitions used by ping(raw sockets)/Files:/iphdr.h -this file/Description:/ This file various protocol header definitions used by/ the raw socket ping sample./ Compile:/ See ping.cpp/ Usage:/ See ping.cpp/Align on a 1-byte boundary#includetypedef struct ip_hdrunsigned char ip_verlen;unsigned char ip_tos;unsigned short ip_totallength;unsigned short ip_id;unsigned short ip_offset;unsigned char ip_ttl;unsigned char ip_protocol;unsigned short ip_check_sum;unsigned int ip_srcaddr;unsigned int ip_destaddr;IPV4_HDR,*PIPV4_HDR,FAR*LPIPV4_HDR;/IPV4 opyion headertypedef struct ipv4_option_hdrunsigned char opt_code;unsigned char opt_len;unsigned char opt_ptr;unsigned long opt_addr9;IPV4_OPTION_HDR,*PIPV4_OPTION_HDR,FAR*LPIPV4_OPTION_HDR;/ICMP headertype struct icmp_hdrunsigned char mp_type;unsigned char mp_code;unsigned short mp_checksum;unsigned short mp_id;unsigned short mp_sequence;unsigned short icmp_timestamp;ICMP_HDR,*PICMP_HDR,FAR*LPICMP_HDR;/IPV6 protocol headertypedef struct ipv6_hdrunsigned long ipv6_vertcflow;unsigned short ipv6_nexthdr;unsigned char ipv6_hoplimit;struct in6_addr ipv6_srcaddr;struct in6_addr ipv6_destaddr;IPV6_HDR,*PIPV6_HDR,FAR*LPIPV6_HDR; /IPV6 fragment headertypedef struct ipv6_fragment_hdrunsigned char ipv6_frag_nexthdr;unsigned char ipv6_frag_reserved;unsigned char ipv6_frag_offset;unsigned char ipv6_frag_id;IPV6_FRAGMENT_HDR,*PIPV6_FRAGMENT_HDR,FAR*LPIPV6_FRAGMENT_HDR;/ICMPv6 headertypedef struct icmpv6_hdrunsigned char icmp6_type;unsigned char icmp6_code;unsigned short icmp6_checksum;ICMPV6_HDR;/ICMPv6 echo request bodytypedef struct icmp6_echo_requestunsigned short icmp6_echo_id;unsigned short icmp6_echo_sequence;ICMPV6_ECHO_REQUEST;/Define the UDP headertypedef struct udp_hdrunsigned short src_portno;unsigned short dst_portno;unsigned short udp_length;unsigned short udp_checksum;UDP_HDR,*PUDR_HDR;/IPV4 opyion for record route# define IP_REC