public static NetStatInfo[] GetExtendedTcpTable(bool sorted = false)
{
IntPtr table = IntPtr.Zero;
int tableLength = 0;
NetStatInfo[] rows = null;
int AfInet = 2;
if (NativeMethods.GetExtendedTcpTable(table, ref tableLength, sorted, AfInet, TCP_TABLE_CLASS.OwnerPidAll, 0) != 0)
{
try
{
table = Marshal.AllocHGlobal(tableLength);
if (NativeMethods.GetExtendedTcpTable(table, ref tableLength, true, AfInet, TCP_TABLE_CLASS.OwnerPidAll, 0) == 0)
{
var mibTable = (MIB_TCPTABLE_OWNER_PID)Marshal.PtrToStructure(table, typeof(MIB_TCPTABLE_OWNER_PID));
rows = new NetStatInfo[mibTable.NumEntries];
IntPtr rowPtr = (IntPtr)((long)table + Marshal.SizeOf(mibTable.NumEntries));
for (int i = 0; i < mibTable.NumEntries; ++i)
{
var mibRow = (MIB_TCPROW_OWNER_PID)Marshal.PtrToStructure(rowPtr, typeof(MIB_TCPROW_OWNER_PID));
var row = new NetStatInfo();
row.Proto = ProtocolType.Tcp;
row.State = mibRow.state;
row.ProcessId = mibRow.owningPid;
row.LocalAddress = new IPAddress(mibRow.localAddr);
row.LocalPort = BitConverter.ToUInt16(new byte[2] {
mibRow.localPort[1], mibRow.localPort[0]
}, 0);
row.RemoteAddress = new IPAddress(mibRow.remoteAddr);
row.RemotePort = BitConverter.ToUInt16(new byte[2] {
mibRow.remotePort[1], mibRow.remotePort[0]
}, 0);
if (row.ProcessId > 0)
{
row.ProcessName = GetProcessName(row.ProcessId);
}
rows[i] = row;
rowPtr = (IntPtr)((long)rowPtr + Marshal.SizeOf(typeof(MIB_TCPROW_OWNER_PID)));
}
}
}
finally
{
if (table != IntPtr.Zero)
{
Marshal.FreeHGlobal(table);
}
}
}
return(rows);
}
public static string GetExtendedTable(bool sorted = false)
{
var tcpList = GetExtendedTcpTable(true);
var udpList = GetExtendedUdpTable(true);
var list = new List <NetStatInfo>();
list.AddRange(tcpList);
list.AddRange(udpList);
var items = list.Select(x => x.ToLineString());
var result = string.Join("\r\n", items);
return(NetStatInfo.ToHeaderLine() + result);
}
