如何从ip address得到机器名？

[kamphkb]

如何从ip address得到机器名？

[howtotell]

ping
nbtstat

[javanew]

gethostbyname()

[jishiping]

举个例子：
long NetAddr = inet_addr("100.100.100.1");
struct hostent* pht = gethostbyaddr((char*)&NetAddr, 4, AF_INET);
if (pht != NULL)
MessageBox(0, pht->h_name, "机器名", MB_OK);

[anni]

HRESULT GetHostByAddr(
const char *addr,
int len,
int type,
char *buf,
int *buflen
);
查msdn
搞定

[wistaria]

从主机名得到IP地址
int CGetIPDlg::GetIPAddress(const CString& sHostName, CString& sIPAddress)
{
struct hostent FAR *lpHostEnt = gethostbyname (sHostName);

if (lpHostEnt == NULL) {
// An error occurred.
sIPAddress = _T("");
return WSAGetLastError();
}

LPSTR lpAddr = lpHostEnt->h_addr_list[0];
if (lpAddr) {
struct in_addr inAddr;
memmove (&inAddr, lpAddr, 4);
sIPAddress = inet_ntoa (inAddr);
if (sIPAddress.IsEmpty())
sIPAddress = _T("Not available");
}

return 0;
}

[haode]

是要编程实现么？

ping -a 就可以显示了

比如：

ping -a 192.168.0.1

[kamphkb]

都不行。 ；（

[beholder]

#inlcude <winsock.h>



void __fastcall TForm1::Button1Click(TObject *Sender)
{
WSADATA wsa;
long addr;
struct hostent *host;


WSAStartup(MAKEWORD(2,2),&wsa);
addr = inet_addr("192.168.10.2");

host= gethostbyaddr((char *)&addr,4,AF_INET);
ShowMessage(host->h_name);

}

[孙亖]

gethostbyaddr