Add ctypes struct pprinter

windows/utils/pythonutils.py

@@ -1,5 +1,6 @@
 """utils fonctions non windows-related"""
 import ctypes
+import _ctypes
 
 
 def fixedpropety(f):
@@ -22,4 +23,32 @@ def swallow_ctypes_copy(ctypes_object):
 
 # type replacement based on name
 def transform_ctypes_fields(struct, replacement):
-    return [(name, replacement.get(name, type)) for name, type in struct._fields_]
+    return [(name, replacement.get(name, type)) for name, type in struct._fields_]
+
+
+def print_ctypes_struct(struct, name="", ident=0, hexa=False):
+    if isinstance(struct, _ctypes._Pointer):
+        if ctypes.cast(struct, ctypes.c_void_p).value is None:
+            print("{0} -> NULL".format(name))
+            return
+        return print_ctypes_struct(struct[0], name + "<deref>", hexa=hexa)
+
+    if not hasattr(struct, "_fields_"):
+        value = struct
+        if hasattr(struct, "value"):
+            value = struct.value
+
+        if isinstance(value, basestring):
+            value = repr(value)
+        if hexa:
+            try:
+                print("{0} -> {1}".format(name, hex(value)))
+                return
+            except TypeError:
+                pass
+        print("{0} -> {1}".format(name, value))
+        return
+
+    for fname, ftype in struct._fields_:
+        value = getattr(struct, fname)
+        print_ctypes_struct(value, "{0}.{1}".format(name, fname), hexa=hexa)