Greeting All!
Is some one who can help me?
The problem is when I use a func(_GetDNSServers) from a native dll which is
responsible in returning DNS servers address.
public class DNSQuery
{
[DllImport("GetDNSDLL.dll")]
public static extern IntPtr _GetDNSServers();
public void PerformSomeActions()
{
. . .
byte[]buffer=new byte[1000];
System.Runtime.InteropServices.Marshal.Copy(_GetDN SServers(), buffer,0,
1000);
. . .
string strt=System.Text.Encoding.ASCII.GetString(buffer,0 ,1000);
strt= strt.Split(';')[0];
this.DNSHost=System.Net.Dns.GetHostByAddress(strt) .AddressList[0];
IPEndPoint ipendp=new IPEndPoint(DNSHost, 53);
sock.Connect(ipendp);
// ????????????????An Error will happened!!!
sock = new
Socket(AddressFamily.InterNetwork,socketType.Strea m,ProtocolType.Tcp);
//?????????????????An Error has been!!!
. . .
}
}
Message of exception is
An unhandled exception of type 'System.ExecutionEngineException' occurred in
system.dll
When I do not use _GetDNSServers(),I use a known server address, connection
is done.
_GetDNSServers() returns char * (a pointer to an array of chars(1 byte
perchar)) which contains all DNS servers address from that domain
How to avoid the problem?
Thks!
