unsafe static public MemoryPatch Patch(IntPtr target, Action action)
{
int size = 8;
var mr = GetPermissions(target);
if (mr != null) {
MemoryProtection(target, size, mprot.Read|mprot.Write);
var ums = new UnmanagedMemoryStream((byte *)target, 0, size, FileAccess.ReadWrite);
byte[] unpatched = new byte[size];
ums.Read(unpatched, 0, size);
ums.Seek(0, SeekOrigin.Begin);
var writer = new X86Writer(ums, (IntPtr)size);
writer.Mov32(X86Register32.EAX, Marshal.GetFunctionPointerForDelegate(action).ToInt32());
writer.Jmp(X86Register32.EAX);
ums.Seek(0, SeekOrigin.Begin);
byte[] patched = new byte[size];
ums.Read(patched, 0, size);
return new MemoryPatch(target, action, patched, unpatched);
} else {
throw new Exception();
}
}
