Merge branch 'beta' into dev

CHANGELOG.md

@@ -122,6 +122,17 @@ The table below shows which release corresponds to each branch, and what date th
 [2435]: https://github.com/Gallopsled/pwntools/pull/2435
 [2437]: https://github.com/Gallopsled/pwntools/pull/2437
 
+## 4.13.1
+
+- [#2445][2445] Fix parsing the PLT on Windows
+- [#2466][2466] Fix PLT emulation with Unicorn 2.1.0
+- [#2466][2466] Switch to PyPi Simple API for update checks
+- [#2467][2467] Fix loading at all on Windows
+
+[2445]: https://github.com/Gallopsled/pwntools/pull/2445
+[2466]: https://github.com/Gallopsled/pwntools/pull/2466
+[2467]: https://github.com/Gallopsled/pwntools/pull/2467
+
 ## 4.13.0 (`stable`)
 
 - [#2242][2242] Term module revamp: activating special handling of terminal only when necessary

pwnlib/elf/plt.py

@@ -70,6 +70,9 @@ def __ensure_memory_to_run_unicorn():
         mm.close()
     except OSError:
         raise OSError("Cannot allocate 1GB memory to run Unicorn Engine")
+    except ImportError:
+        # Can only mmap files on Windows, would need to use VirtualAlloc.
+        pass
 
 
 def prepare_unicorn_and_context(elf, got, address, data):
@@ -166,8 +169,8 @@ def hook_mem(uc, access, address, size, value, user_data):
         return False
 
     hooks = [
-        uc.hook_add(U.UC_HOOK_MEM_READ | U.UC_HOOK_MEM_READ_UNMAPPED,
-                    hook_mem, stopped_addr),
+        uc.hook_add(U.UC_HOOK_MEM_READ, hook_mem, stopped_addr),
+        uc.hook_add(U.UC_HOOK_MEM_READ_UNMAPPED, hook_mem, stopped_addr),
     ]
 
     # callback for tracing instructions

pwnlib/tubes/ssh.py

@@ -2052,7 +2052,7 @@ def user_shstk(self):
         Example:
 
             >>> s = ssh("travis", "example.pwnme")
-            >>> s.user_shstk
+            >>> s.user_shstk # doctest: +SKIP 
             False
         """
         if self._user_shstk is None:

pwnlib/update.py

@@ -74,12 +74,15 @@ def available_on_pypi(prerelease=current_version.is_prerelease):
     False
     """
     # Deferred import to save startup time
-    from six.moves.xmlrpc_client import ServerProxy
+    import requests
 
     versions = getattr(available_on_pypi, 'cached', None)
     if versions is None:
-        client = ServerProxy('https://pypi.python.org/pypi')
-        versions = client.package_releases('pwntools', True)
+        response = requests.get("https://pypi.org/simple/pwntools/",
+                                headers={"Accept": "application/vnd.pypi.simple.v1+json"},
+                                timeout=5)
+        response.raise_for_status()
+        versions = response.json()["versions"]
         available_on_pypi.cached = versions
 
     versions = map(packaging.version.Version, versions)