基于c语言的简易网络通信软件

1、#include #include #pragma comment (lib,ws2_32.lib)/#define clientsend_exit 1#define clientsend_tran 2#define clientsend_list 3/#define serversend_selfid 1#define serversend_newusr 2#define serversend_showmsg 3#define serversend_online 4/file *ioutfileserver;file *ioutfileclient;/struct creceivepacka

2、geint itype; /int itoid; /idint ifromid; /idchar cbuffer1024; /;/struct csendpackageint itype; /int icurconn; /char cbuffer1024; /;/struct cusersocketinfoint id; /idchar cdstip64; /ip,int iport; /socket susersocket; /;/struct cuserint id; /idchar cdstip64; /ip ;struct cuser usr20; /int bsend=0; /int

3、 imyself; /idint inew=0; /struct cusersocketinfo usrinfo20; /exitsystemvoid exitsystem()if(ioutfileserver!=null)fclose(ioutfileserver);if(ioutfileclient!=null)fclose(ioutfileclient);wsacleanup();exit(0);/threadproclientdword winapi threadproclient(lpvoid pparam)socket hsock=(socket)pparam;char crecv

4、buffer1024;char cshowbuffer1024;int num=0;if(hsock!=invalid_socket)printf(start:n);while(1)num = recv(hsock,crecvbuffer,1024,0);if(num = 0)crecvbuffernum=0;sprintf(cshowbuffer,to me : %sn,crecvbuffer);printf(%s,cshowbuffer);fwrite(cshowbuffer ,sizeof(char),strlen(cshowbuffer),ioutfileclient);fflush(

5、ioutfileclient);/fflush ,stdio.hint fflush(file*stream)if(strcmp(exit,crecvbuffer)=0)exitsystem();return 0; /threadproserverdword winapi threadproserver(lpvoid pparam)socket hsock=(socket)pparam;char crecvbuffer1024;char cshowbuffer1024;int num=0;if(hsock!=invalid_socket)printf(start:n);while(1)num

6、= recv(hsock,crecvbuffer,1024,0); / /rece=receiveif(num = 0)crecvbuffernum=0;sprintf(cshowbuffer,to me : %sn,crecvbuffer);printf(%s,cshowbuffer);/fwrite(cshowbuffer ,sizeof(char),strlen(cshowbuffer),ioutfileserver); /ioutfileserverfflush(ioutfileserver);if(strcmp(exit,crecvbuffer)=0)exitsystem();ret

7、urn 0; / void createserver()socket m_sockserver;struct sockaddr_in serveraddr; /struct sockaddr_in serveraddrfrom; /int iport=4600; /int ibindresult=-1; /int iwhilecount=200;struct hostent* localhost;char* localip;socket m_server;char cwelcombuffer=welcome to you!0;int len=sizeof(struct sockaddr);in

8、t iwhilelistencount=10;dword nthreadid = 0;int ires; /char csendbuffer1024; /char cshowbuffer1024; /ioutfileserver= fopen(messageserver.txt,a); /m_sockserver = socket ( af_inet,sock_stream, 0);printf(1024);scanf(%d,&iport);localhost = gethostbyname();localip = inet_ntoa (*(struct in_addr *)*localhos

9、t-h_addr_list);/serveraddr.sin_family = af_inet;serveraddr.sin_port = htons(iport); /serveraddr.sin_addr.s_un.s_addr = inet_addr(localip);/ibindresult=bind(m_sockserver,(struct sockaddr*)&serveraddr,sizeof(struct sockaddr);/while(ibindresult!=0 & iwhilecount 0)printf();scanf(%d,iport);/serveraddr.si

10、n_family = af_inet;serveraddr.sin_port = htons(iport); /serveraddr.sin_addr.s_un.s_addr = inet_addr(localip);/ip/ibindresult = bind(m_sockserver,(struct sockaddr*)&serveraddr,sizeof(struct sockaddr);iwhilecount-;if(iwhilecount0)printf(start listenn);listen(m_sockserver,0); /m_server=accept(m_sockser

11、ver,(struct sockaddr*)&serveraddrfrom,&len);if(m_server!=invalid_socket)/send(m_server,cwelcombuffer,sizeof(cwelcombuffer),0);/createthread(null,0,threadproserver,(lpvoid)m_server,0,&nthreadid );break;printf(.);iwhilelistencount-;if(iwhilelistencount0) /ires = send(m_server,csendbuffer,strlen(csendb

12、uffer),0);/if(ires0)printf();elsesprintf(cshowbuffer,send to : %sn,csendbuffer);printf(%s,cshowbuffer);fwrite(cshowbuffer ,sizeof(char),strlen(cshowbuffer),ioutfileserver);/if(strcmp(exit,csendbuffer)=0)exitsystem();int checkip(char *cip)char ipaddress128; /ipchar ipnumber4; /ipint isubip=0; /ip4int

13、 idot=0; /ip.int iresult=0;int iipresult=1;int i; /memset(ipnumber,0,4);strncpy(ipaddress,cip,128);for(i=0;i255)iipresult = 0;memset(ipnumber,0,4);elseipnumberisubip+=ipaddressi;if(idot=3 & iipresult!=0)iresult= 1;return iresult;/creatclientipvoid createclient()socket m_sockclient;struct sockaddr_in

14、 clientaddr;char cserverip128;int iwhileip=10; /int icnnres; /dword nthreadid = 0; /idchar csendbuffer1024; /char cshowbuffer1024; /char crecvbuffer1024; /int num; /int ires; /int iipres; /ipm_sockclient = socket ( af_inet,sock_stream, 0 );printf();scanf(%s,cserverip);/ipif(strlen(cserverip)=0)strcp

15、y(cserverip,); /elseiipres=checkip(cserverip);while(!iipres & iwhileip0)printf(n);scanf(%s,cserverip); /ipiipres=checkip(cserverip); /ipiwhileip-; /iwhileipif(iwhileip 0 )printf(receive from server : %sn,crecvbuffer); /crecevbuffer/createthread(null,0,threadproclient,(lpvoid)m_sockclient,0,

16、&nthreadid );while(1)memset(csendbuffer,0,1024);scanf(%s,csendbuffer);if(strlen(csendbuffer)0) /ires=send(m_sockclient,csendbuffer,strlen(csendbuffer),0);if(ires=0) /p = (struct creceivepackage*)crecvbuffer;switch(p-itype)case clientsend_tran: / clientsend_tranlatesfor(m=0;mitoid)/stmp=usrinfom.suse

17、rsocket;memset(&sp,0,sizeof(sp);sp.itype=serversend_showmsg;strcpy(sp.cbuffer,p-cbuffer);ires = send(stmp,(char*)&sp,sizeof(sp),0); /if(ires0)printf(n);break;case clientsend_list: /memset(&sp,0,sizeof(sp);for(j=0;jifromid & usrinfoj.id!=0)sp.cbufferj=usrinfoj.id;sp.itype=serversend_online;send(hsock

18、,(char*)&sp,sizeof(sp),0);break;case clientsend_exit:printf(n);return 0; /break;return 0;/notyifyuprocdword winapi notyifyproc(lpvoid pparam) /ipvoidstruct csendpackage sp; /socket stemp; /socketint *p; /idint j; /p=(int*)pparam; /idfor(j=0;jh_addr_list);/ipserveraddr.sin_family = af_inet;serveraddr

19、.sin_port = htons(4600); /serveraddr.sin_addr.s_un.s_addr = inet_addr(localip); /ip/m_sockserver = socket ( af_inet,sock_stream, 0);if(m_sockserver = invalid_socket) /inualid_socketprintf(n);exit(0);/ipires=bind(m_sockserver,(struct sockaddr*)&serveraddr,sizeof(struct sockaddr);if(ires 0)printf(n);e

20、xit(0);/while(1)listen(m_sockserver,0); /m_server=accept(m_sockserver,(struct sockaddr*)&serveraddrfrom,&len);/if(m_server!=invalid_socket)printf(); /if(iconnect 0)createthread(null,0,notyifyproc,(lpvoid)&id,0,&nthreadid );iconnect+;elsesend(m_server,cwarnbuffer,sizeof(cwarnbuffer),0); /wsacleanup()

21、;dword winapi threadtranclient(lpvoid pparam)socket hsock=(socket)pparam;int i; /char crecvbuffer2048; /intnum; /char ctmp2; /idstruct creceivepackage sp; /struct csendpackage *p; /int itemp; /idwhile(1)num = recv(hsock,crecvbuffer,2048,0);/if(num=0)p = (struct csendpackage*)crecvbuffer;if(p-itype=s

22、erversend_selfid)imyself=atoi(p-cbuffer);sp.itype=clientsend_list; /send(hsock,(char*)&sp,sizeof(sp),0);if(p-itype=serversend_newusr) /iditemp = atoi(p-cbuffer);usrinew+.id=itemp; /inewprintf(,n);bsend=1; /if(p-itype=serversend_showmsg) /printf(rec:%sn,p-cbuffer);if(p-itype=serversend_online) /for(i=0;icbufferi!=imyself & p-cbufferi!=0)usrinew+.id=p-cbufferi;printf(,n);bsend=1;/if(!bsend)printf(n);return 0;void exittransystem()wsacleanup();exit(0);void createtranclient()socket m_sockclient; /socketstruct sockaddr_in clientaddr; /int ires;/char csendbuffer1024; /d