獲得本機IP

1.簡單伺服器

//#include

//#pragma comment(lib,"ws2_32.lib")

wsadata wsd;

static uint port=%%1;

uint listen(lpvoid pparam)

sserver=socket(af_inet,sock_stream,ipproto_tcp);

if(invalid_socket==sserver)

sockaddr_in addrserv;

addrserv.sin_family=af_inet;

addrserv.sin_port=htons((short)pparam);

addrserv.sin_addr.s_addr=inaddr_any;

retval=bind(sserver,(lpsockaddr)&addrserv,sizeof(sockaddr_in));

if(socket_error==retval)

retval=listen(sserver,1);

if(socket_error==retval)

sockaddr_in addrclient;

int addrclientlen=sizeof(addrclient);

sclient=accept(sserver,(sockaddr far*)&addrclient,&addrclientlen);

if(invalid_socket==sclient)

zeromemory(buf,sizeof(buf));

retval=recv(sclient,buf,sizeof(buf),0);

if(socket_error==retval)

cstring %%2(buf);

closesocket(sserver);

closesocket(sclient);

wsacleanup();

return 0;

}cwinthread *pthread=afxbeginthread(listen,&port);

2.簡單客戶端

//#include

//#pragma comment(lib,"ws2_32.lib")

wsadata wsd;

socket shost;

sockaddr_in servaddr;

char buf[1024];

int retval;

if(wsastartup(makeword(2,2),&wsd)!=0)

shost=socket(af_inet,sock_stream,ipproto_tcp);

if(invalid_socket==shost)

servaddr.sin_family=af_inet;

servaddr.sin_addr.s_addr=inet_addr(%%3);

servaddr.sin_port=htons((short)%%2);

int nservaddlen=sizeof(servaddr);

retval=connect(shost,(lpsockaddr)&servaddr,sizeof(servaddr));

if(socket_error==retval)

zeromemory(buf,sizeof(buf));

strcpy(buf,%%3);

retval=send(shost,buf,sizeof(buf),0);

if(socket_error==retval)

closesocket(shost);

wsacleanup();

3.獲得本機ip

//#include

//#pragma comment(lib,"ws2_32.lib")

wsadata wsd;

if(wsastartup(makeword(2,2),&wsd)!=0)

char szhostname[100],szhostaddress[200];

if(gethostname(szhostname,sizeof(szhostname))!=socket_error)

}else

return;

cstring %%1(szhostaddress);

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