知道计算机名和IP地址，怎么得到该用户所在局域网中的工作组名？

Question

hostent
gethostbyaddr?
还是什么

Answer 1

获得远程机器名和工作组名代码如下。楼主可参考用UDP协议，向对方的137端口发送这一串：
BYTE bs[50]={0x0,0x00,0x0,0x10,0x0,0x1,0x0,0x0,0x0,0x0,0x0,0x0,0x20,0x43,0x4b,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x0,0x0,0x21,0x0,0x1};
然后接收500个字节的数据，就什么都有啦，比如对方网卡序列号，当前用户，工作组，机器名等，接收到后的分析代码如下：这个代码在VC知识库里有，
void CNBTSTATDlg::OnReceive()
{

BYTE Buf[500];
//m_UDPSocket.Receive(Buf,500,0); CString str,strIP,strHost,strHex,strMac,Host,Group,User;
UINT dport;
m_UDPSocket.ReceiveFrom(Buf,500,strIP,dport,0); if(strIP==(char)NULL||strIP==strOldIP)return;
strOldIP=strIP; int index=m_ListView.InsertItem(0,strIP); strHost="";
strHex="";
User="?";
Host="\\";

int tem=0,num=0;
bool bAdd=true; //if(m_strIP==strIP)
for(i=57;i<500;i++) //57-72
{
if(Buf[i]==0xcc)break; 
if(Buf[i]==0x20)bAdd=false;
if(bAdd)
{
str.Format("%c",Buf[i]);
if(Buf[i]>=' ')strHost+=str; str.Format("%02x.",Buf[i]);
strHex+=str;
} if((++tem)%18==0)
{
            bAdd=true; 
//m_ListBox.AddString(strHost);//
strHost.TrimRight((char)NULL);
if(strHost=="")
{
    strMac.Delete(17,strMac.GetLength()-17);
m_ListView.SetItem(index,4,LVIF_TEXT,strMac, 0, 0, 0,0);
break;
}
if(num==0&&strHost!="")
{
m_ListView.SetItem(index,2,LVIF_TEXT,strHost, 0, 0, 0,0);
Host=strHost;
num++;
}
else
{
if(Host!=strHost&&num==1&&strHost!="")
{
m_ListView.SetItem(index,1,LVIF_TEXT,strHost, 0, 0, 0,0);
Group=strHost;
//AfxMessageBox(strHost);
    num++;
}
else 
{
if(strHost!=Host&&strHost!=Group&&num==2&&strHost!="")
{
User=strHost;
if(User!="__MSBROWSE__")
{
m_ListView.SetItem(index,3,LVIF_TEXT,User, 0, 0, 0,0);
num++;
}
//num++;
}
} }

strMac=strHex;
strHost="";
strHex="";

}

}
SetEvent(wait_handle);
}