public void RemoveData(string key)
{
bool freed = ProcessMemoryApi.VirtualFreeEx(process.Handle, (IntPtr)dataEntries[key], 0, ProcessMemoryApi.MEM_DECOMMIT);
Debug.Assert(freed, "Unable to free allocated memory in process.");
dataEntries.Remove(key);
}
public void AddData(string key, byte[] data)
{
int numWritten;
IntPtr bufferAddress = ProcessMemoryApi.VirtualAllocEx(process.Handle, IntPtr.Zero, data.Length, ProcessMemoryApi.MEM_COMMIT, ProcessMemoryApi.PAGE_READWRITE);
Debug.Assert(bufferAddress != IntPtr.Zero, "Could not allocate memory in target process.");
ProcessMemoryApi.WriteProcessMemory(process.Handle, bufferAddress, data, data.Length, out numWritten);
Debug.Assert(numWritten == data.Length, "Bad write length returned from WriteProcessMemory()");
dataEntries.Add(key, bufferAddress);
}
public void Write(int offset, byte[] data)
{
int numWritten;
if (!Available)
{
throw new ApplicationException("Process no longer available.");
}
//FIXME? check for PROCESS_VM_WRITE and PROCESS_VM_OPERATION?
ProcessMemoryApi.WriteProcessMemory(process.Handle, (IntPtr)offset, data, data.Length, out numWritten);
Debug.Assert(numWritten == data.Length, "Wrong number of bytes written.");
}
public byte[] Read(int offset, int size)
{
byte[] buffer = new byte[size];
IntPtr numRead;
if (!Available)
{
throw new ApplicationException("Process no longer available.");
}
ProcessMemoryApi.ReadProcessMemory(process.Handle, (IntPtr)offset, buffer, size, out numRead);
return(buffer);
}
public void Start()
{
IntPtr handle = IntPtr.Zero;
int threadId;
try
{
while (procMem.DataAddress["__delegatorParams"] != null)
{
Thread.Sleep(0);
}
procMem.AddData("__delegatorFunction", delegatorFunction);
BinaryWriter wtr = new BinaryWriter(new MemoryStream());
foreach (int element in delegatorParams)
{
wtr.Write(element);
}
procMem.AddData("__delegatorParams", ((MemoryStream)wtr.BaseStream).ToArray());
handle = ProcessMemoryApi.CreateRemoteThread(procMem.Handle, IntPtr.Zero, 0, (IntPtr)procMem.DataAddress["__delegatorFunction"], (IntPtr)procMem.DataAddress["__delegatorParams"], 0, out threadId);
while (true)
{
ProcessMemoryApi.GetExitCodeThread(handle, out result);
if (result != STILL_ACTIVE)
{
break;
}
Thread.Sleep(100);
}
}
catch (ThreadAbortException)
{
ProcessMemoryApi.TerminateThread(handle, out result);
}
finally
{
procMem.RemoveData("__delegatorFunction");
procMem.RemoveData("__delegatorParams");
}
}
