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From: Helmut Grohne <helmut@subdivi.de>
Subject: support copy method of haslib objects
Last-Modified: 2014-09-28
Index: python-ssdeep-3.1/ssdeep/__init__.py
===================================================================
--- python-ssdeep-3.1.orig/ssdeep/__init__.py 2014-08-07 21:31:22.000000000 +0200
+++ python-ssdeep-3.1/ssdeep/__init__.py 2014-09-28 15:29:37.000000000 +0200
@@ -44,6 +44,18 @@
if self._state == ffi.NULL:
raise InternalError("Unable to create state object")
+ def copy(self):
+ """Create a copy of this hash object.
+
+ :raises InternalError: If the lib returns an internal error
+ """
+ newstate = binding.lib.fuzzy_clone(self._state)
+ if newstate == ffi.NULL:
+ raise InternalError("cloning of fuzzy state object failed")
+ new = Hash.__new__(Hash)
+ new._state = newstate
+ return new
+
def update(self, buf, encoding="utf-8"):
"""
Feed the data contained in the given buffer to the state.
Index: python-ssdeep-3.1/ssdeep/binding.py
===================================================================
--- python-ssdeep-3.1.orig/ssdeep/binding.py 2014-08-07 21:31:22.000000000 +0200
+++ python-ssdeep-3.1/ssdeep/binding.py 2014-09-28 14:36:35.000000000 +0200
@@ -11,6 +11,8 @@
struct fuzzy_state;
struct fuzzy_state *fuzzy_new(void);
+ struct fuzzy_state *fuzzy_clone(
+ const struct fuzzy_state *);
int fuzzy_update(
struct fuzzy_state *,
const unsigned char *,
@@ -62,6 +64,7 @@
struct fuzzy_state {};
const long FUZZY_FLAG_ELIMSEQ = 0;
const long FUZZY_FLAG_NOTRUNC = 0;
+ int (*fuzzy_clone)(const struct fuzzy_state *) = NULL;
int (*fuzzy_digest)(
const struct fuzzy_state *,
char *,
@@ -91,6 +94,7 @@
"ssdeep_HAS_STATEFUL_HASHING": (
"FUZZY_FLAG_ELIMSEQ",
"FUZZY_FLAG_NOTRUNC",
+ "fuzzy_clone",
"fuzzy_digest",
"fuzzy_free",
"fuzzy_new",
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