Author: Armin Rigo <[email protected]>
Branch:
Changeset: r57259:1feab101071c
Date: 2012-09-09 22:55 +0200
http://bitbucket.org/pypy/pypy/changeset/1feab101071c/
Log: Hopefully fix issue1254 (bad usage of _freeze_, and missing lazy
initialization).
diff --git a/pypy/module/posix/interp_posix.py
b/pypy/module/posix/interp_posix.py
--- a/pypy/module/posix/interp_posix.py
+++ b/pypy/module/posix/interp_posix.py
@@ -500,7 +500,9 @@
def _freeze_(self):
# don't capture the environment in the translated pypy
self.space.call_method(self.w_environ, 'clear')
- self.random_context = None
+ # also reset random_context to a fresh new context (empty so far,
+ # to be filled at run-time by rurandom.urandom())
+ self.random_context = rurandom.init_urandom()
return True
def get(space):
diff --git a/pypy/rlib/rurandom.py b/pypy/rlib/rurandom.py
--- a/pypy/rlib/rurandom.py
+++ b/pypy/rlib/rurandom.py
@@ -43,23 +43,28 @@
compilation_info=eci)
def init_urandom():
- "Acquire context."
- # This handle is never explicitly released. The operating
- # system will release it when the process terminates.
- with lltype.scoped_alloc(rffi.CArray(HCRYPTPROV), 1) as ptr:
+ """NOT_RPYTHON
+ Return an array of one HCRYPTPROV, initialized to NULL.
+ It is filled automatically the first time urandom() is called.
+ """
+ return lltype.malloc(rffi.CArray(HCRYPTPROV), 1,
+ immortal=True, zero=True)
+
+ def urandom(context, n):
+ provider = context[0]
+ if not provider:
+ # This handle is never explicitly released. The operating
+ # system will release it when the process terminates.
if not CryptAcquireContext(
- ptr, None, None,
+ context, None, None,
PROV_RSA_FULL, CRYPT_VERIFYCONTEXT):
raise rwin32.lastWindowsError("CryptAcquireContext")
- return ptr[0]
-
- def urandom(context, n):
- provider = context
+ provider = context[0]
# TODO(win64) This is limited to 2**31
with lltype.scoped_alloc(rffi.CArray(rwin32.BYTE), n,
zero=True, # zero seed
) as buf:
- if not CryptGenRandom(rffi.cast(HCRYPTPROV, provider), n, buf):
+ if not CryptGenRandom(provider, n, buf):
raise rwin32.lastWindowsError("CryptGenRandom")
return rffi.charpsize2str(rffi.cast(rffi.CCHARP, buf), n)
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