Added json dumps/loads support.

Author: Hadatko

dissect/cstruct/__init__.py

@@ -2,6 +2,8 @@
     cstruct,
     ctypes,
     dumpstruct,
+    dumpstructjson,
+    loadstructjson,
     hexdump,
     Instance,
     PointerInstance,
@@ -19,6 +21,8 @@
     "cstruct",
     "ctypes",
     "dumpstruct",
+    "dumpstructjson",
+    "loadstructjson",
     "hexdump",
     "Instance",
     "PointerInstance",

dissect/cstruct/cstruct.py

@@ -32,6 +32,7 @@
 import ctypes as _ctypes
 from io import BytesIO
 from collections import OrderedDict
+import json
 
 try:
     from builtins import bytes as newbytes
@@ -1892,3 +1893,17 @@ def dumpstruct(t, data=None, offset=0):
     hexdump(data, palette, offset=offset)
     print()
     print(out)
+
+def serialize(ft):
+    if isinstance(ft, Instance):
+        newDict = {}
+        newDict['_type'] = str(ft._type.name)
+        newDict['_values'] = ft._values
+        newDict['_sizes'] = ft._sizes
+        return newDict
+
+def dumpstructjson(ft):
+    return json.dumps(ft, default=serialize)
+
+def loadstructjson(ft):
+    return json.loads(dumpstructjson(ft))