public TcpConnectInfo GetTcpConnexions()
{
byte[] buffer = new byte[20000]; // Start with 20.000 bytes left for information about tcp table
int pdwSize = 20000;
int res = ConInfosHlpAPI32Wrapper.GetTcpTable(buffer, out pdwSize, true);
if (res != NO_ERROR)
{
buffer = new byte[pdwSize];
res = ConInfosHlpAPI32Wrapper.GetTcpTable(buffer, out pdwSize, true);
if (res != 0)
return TcpConnexion; // Error. You should handle it
}
TcpConnexion = new TcpConnectInfo();
int nOffset = 0;
// number of entry in the
TcpConnexion.dwNumEntries = Convert.ToInt32(buffer[nOffset]);
nOffset += 4;
TcpConnexion.table = new TcpConnectTable[TcpConnexion.dwNumEntries];
for (int i = 0; i < TcpConnexion.dwNumEntries; i++)
{
// state
int st = Convert.ToInt32(buffer[nOffset]);
// state in string
TcpConnexion.table[i].StrgState = convert_state(st);
// state by ID
TcpConnexion.table[i].iState = st;
nOffset += 4;
// local address
string LocalAdrr = buffer[nOffset].ToString() + "." + buffer[nOffset + 1].ToString() + "." + buffer[nOffset + 2].ToString() + "." + buffer[nOffset + 3].ToString();
nOffset += 4;
//local port in decimal
int LocalPort = (((int)buffer[nOffset]) << 8) + (((int)buffer[nOffset + 1])) +
(((int)buffer[nOffset + 2]) << 24) + (((int)buffer[nOffset + 3]) << 16);
nOffset += 4;
// store the remote endpoint
TcpConnexion.table[i].Local = new IPEndPoint(IPAddress.Parse(LocalAdrr), LocalPort);
// remote address
string RemoteAdrr = buffer[nOffset].ToString() + "." + buffer[nOffset + 1].ToString() + "." + buffer[nOffset + 2].ToString() + "." + buffer[nOffset + 3].ToString();
nOffset += 4;
// if the remote address = 0 (0.0.0.0) the remote port is always 0
// else get the remote port in decimal
int RemotePort;
//
if (RemoteAdrr == "0.0.0.0")
{
RemotePort = 0;
}
else
{
RemotePort = (((int)buffer[nOffset]) << 8) + (((int)buffer[nOffset + 1])) +
(((int)buffer[nOffset + 2]) << 24) + (((int)buffer[nOffset + 3]) << 16);
}
nOffset += 4;
TcpConnexion.table[i].Remote = new IPEndPoint(IPAddress.Parse(RemoteAdrr), RemotePort);
}
return TcpConnexion;
}
public TcpConnectInfo GetTcpConnexions()
{
byte[] buffer = new byte[20000]; // Start with 20.000 bytes left for information about tcp table
int pdwSize = 20000;
int res = ConInfosHlpAPI32Wrapper.GetTcpTable(buffer, out pdwSize, true);
if (res != NO_ERROR)
{
buffer = new byte[pdwSize];
res = ConInfosHlpAPI32Wrapper.GetTcpTable(buffer, out pdwSize, true);
if (res != 0)
{
return(TcpConnexion); // Error. You should handle it
}
}
TcpConnexion = new TcpConnectInfo();
int nOffset = 0;
// number of entry in the
TcpConnexion.dwNumEntries = Convert.ToInt32(buffer[nOffset]);
nOffset += 4;
TcpConnexion.table = new TcpConnectTable[TcpConnexion.dwNumEntries];
for (int i = 0; i < TcpConnexion.dwNumEntries; i++)
{
// state
int st = Convert.ToInt32(buffer[nOffset]);
// state in string
TcpConnexion.table[i].StrgState = convert_state(st);
// state by ID
TcpConnexion.table[i].iState = st;
nOffset += 4;
// local address
string LocalAdrr = buffer[nOffset].ToString() + "." + buffer[nOffset + 1].ToString() + "." + buffer[nOffset + 2].ToString() + "." + buffer[nOffset + 3].ToString();
nOffset += 4;
//local port in decimal
int LocalPort = (((int)buffer[nOffset]) << 8) + (((int)buffer[nOffset + 1])) +
(((int)buffer[nOffset + 2]) << 24) + (((int)buffer[nOffset + 3]) << 16);
nOffset += 4;
// store the remote endpoint
TcpConnexion.table[i].Local = new IPEndPoint(IPAddress.Parse(LocalAdrr), LocalPort);
// remote address
string RemoteAdrr = buffer[nOffset].ToString() + "." + buffer[nOffset + 1].ToString() + "." + buffer[nOffset + 2].ToString() + "." + buffer[nOffset + 3].ToString();
nOffset += 4;
// if the remote address = 0 (0.0.0.0) the remote port is always 0
// else get the remote port in decimal
int RemotePort;
//
if (RemoteAdrr == "0.0.0.0")
{
RemotePort = 0;
}
else
{
RemotePort = (((int)buffer[nOffset]) << 8) + (((int)buffer[nOffset + 1])) +
(((int)buffer[nOffset + 2]) << 24) + (((int)buffer[nOffset + 3]) << 16);
}
nOffset += 4;
TcpConnexion.table[i].Remote = new IPEndPoint(IPAddress.Parse(RemoteAdrr), RemotePort);
}
return(TcpConnexion);
}
