根据ip得到mac

[runsoft]

根据ip得到mac

[菜牛]

ARP

[美伊小公主的奶爸]

如果是编程实现的话，可以发送arp包

[runsoft]

帮我看看,为什么 计算机名称可以的到,确的不到MAC呢
void CSearchIpDlg::GetMacByIp()
{

/*
HINSTANCE h=LoadLibrary("Iphlpapi.dll");
if (h==NULL)
{
MessageBox("load Iphlpapi dll file failed");
return;
}
*/

struct hostent *remoteHostent;
int numberOfHost = 1;

//初始化SOCKET
WSADATA wsaData;
int iRet = WSAStartup(MAKEWORD(2,1), &wsaData);
if ( iRet != 0 )
{
MessageBox( "WSAStartup Error");
WSACleanup( );
exit( 0 );
}
char * ipaddress;

ipaddress = "192.168.18.134";

int nRemoteAddr = inet_addr( ipaddress );
remoteHostent= (struct hostent*)malloc( sizeof(struct hostent ));
struct in_addr sa;
for ( int i = 0; i < numberOfHost; i ++ )
{
//获取远程机器名
sa.s_addr = nRemoteAddr;
MessageBox(inet_ntoa( sa ) );
remoteHostent = gethostbyaddr( (char*)&nRemoteAddr,4, AF_INET );
if ( remoteHostent )
MessageBox(remoteHostent->h_name );
else
{
MessageBox( "SendARP Error"); //, GetLastError()
WSACleanup( );
return;
}
//发送ARP查询包获得远程MAC地址

unsigned char macAddress[6];
ULONG macAddLen = 6;
iRet=SendARP(nRemoteAddr, (unsigned long)NULL,(PULONG)&macAddress, &macAddLen);
if ( iRet == NO_ERROR )
{
for( int i =0; i<6; i++ )
{
MessageBox((CString)(LPCTSTR)macAddress[i],"MacAddress");
}
}
else
MessageBox( "SendARP Error"); //, GetLastError()

nRemoteAddr = htonl( ntohl( nRemoteAddr ) + 1 );

WSACleanup( );

}
}

[runsoft]

得到正确的计算机名称,
帮我看看,为什么 计算机名称可以的到,确的不到MAC呢
void CSearchIpDlg::GetMacByIp()
{

/*
HINSTANCE h=LoadLibrary("Iphlpapi.dll");
if (h==NULL)
{
MessageBox("load Iphlpapi dll file failed");
return;
}
*/

struct hostent *remoteHostent;
int numberOfHost = 1;

//初始化SOCKET
WSADATA wsaData;
int iRet = WSAStartup(MAKEWORD(2,1), &wsaData);
if ( iRet != 0 )
{
MessageBox( "WSAStartup Error");
WSACleanup( );
exit( 0 );
}
char * ipaddress;

ipaddress = "192.168.18.134";

int nRemoteAddr = inet_addr( ipaddress );
remoteHostent= (struct hostent*)malloc( sizeof(struct hostent ));
struct in_addr sa;
for ( int i = 0; i < numberOfHost; i ++ )
{
//获取远程机器名
sa.s_addr = nRemoteAddr;
MessageBox(inet_ntoa( sa ) );
remoteHostent = gethostbyaddr( (char*)&nRemoteAddr,4, AF_INET );
if ( remoteHostent )
MessageBox(remoteHostent->h_name );
else
{
MessageBox( "SendARP Error"); //, GetLastError()
WSACleanup( );
return;
}
//发送ARP查询包获得远程MAC地址

unsigned char macAddress[6];
ULONG macAddLen = 6;
iRet=SendARP(nRemoteAddr, (unsigned long)NULL,(PULONG)&macAddress, &macAddLen);
if ( iRet == NO_ERROR )
{
for( int i =0; i<6; i++ )
{
MessageBox((CString)(LPCTSTR)macAddress[i],"MacAddress");
}
}
else
MessageBox( "SendARP Error"); //, GetLastError()

nRemoteAddr = htonl( ntohl( nRemoteAddr ) + 1 );

WSACleanup( );

}
}

[mscrack]

提示 "SendARP Error" 吗?
MessageBox((CString)(LPCTSTR)macAddress[i],"MacAddress");
这个估计显示不出来,返回MAC地址是16进制的,你要怎么显示成字符串呢?