Commit Graph

130 Commits

Author SHA1 Message Date
Thomas Heller ea7f88e3d9 Fix warnings by using proper function prototype. 2007-06-08 19:14:23 +00:00
Thomas Heller 6088f24df2 Fix gcc warnings intruduced by passing Py_ssize_t to PyErr_Format calls. 2007-06-08 19:01:06 +00:00
Thomas Heller e81c9f6d5e [ 1715718 ] x64 clean compile patch for _ctypes, by Kristj?n Valur
with small modifications.
2007-06-08 18:20:09 +00:00
Thomas Heller 601aa414b2 Fix compiler warnings. 2007-05-30 06:58:30 +00:00
Thomas Heller 1ad576c267 Do not truncate 64-bit pointers to 32-bit integers.
Fixes SF #1703286, will backport to release25-maint.
2007-05-04 19:54:22 +00:00
Thomas Heller db3bfdf141 On 64-bit Windows, ffi_arg must be 8 bytes long. This fixes the
remaining crashes in the ctypes tests, when functions return float or
double types.
2007-05-04 08:20:41 +00:00
Thomas Heller 9b73d0aed5 Don't truncate pointers to integers (on win64 platform). 2007-05-03 12:05:20 +00:00
Thomas Heller 68bb9a1418 When accessing the .value attribute of a c_wchar_p instance, and the
instance does not point to a valid wchar_t zero-terminated string,
raise a ValueError.  c_char_p does this already.

The ValueError message now contains the correct pointer address.

Will backport to release25-maint.
2007-04-30 16:04:57 +00:00
Thomas Heller 5a901bd3cc Make sure to call PyErr_NoMemory() in several places where
PyMem_Malloc() could potentially fail.

Will backport to the release25-maint branch.
2007-04-30 15:44:17 +00:00
Kristján Valur Jónsson 17b8e97e2e Merge change 54909 from release25-maint: Fix several minor issues discovered using code analysis in VisualStudio 2005 Team Edition 2007-04-25 00:10:50 +00:00
Thomas Heller e6a7039451 Prevent creation (followed by a segfault) of array types when the size
overflows the valid Py_ssize_t range.  Check return values of
PyMem_Malloc.

Will backport to release25-maint.
2007-03-23 19:55:27 +00:00
Thomas Heller 82730f8d11 Explain the purpose of the b_needsfree flag (forward ported from release25-maint). 2007-03-22 20:34:37 +00:00
Thomas Heller f493cbd824 Back out "Patch #1643874: memory leak in ctypes fixed."
The code in this patch leaves no way to give up the ownership of a
BSTR instance.
2007-03-22 19:44:31 +00:00
Thomas Heller 5dc4fe09b7 Patch #1649190: Adding support for _Bool to ctypes as c_bool, by David Remahl. 2007-03-13 20:42:52 +00:00
Thomas Heller 2456a3c02a Bug #1651235: When a tuple was passed to a ctypes function call,
Python would crash instead of raising an error.

The crash was caused by a section of code that should have been
removed long ago, at that time ctypes had other ways to pass
parameters to function calls.
2007-03-09 20:39:22 +00:00
Thomas Heller c2f7725c86 Fix bug #1646630: ctypes.string_at(buf, 0) and ctypes.wstring_at(buf, 0)
returned string up to the first NUL character.
2007-03-09 19:21:28 +00:00
Thomas Heller 4378215474 Fix for #1643874: When calling SysAllocString, create a PyCObject
which will eventually call SysFreeString to free the BSTR resource.
2007-01-25 18:34:14 +00:00
Thomas Heller 2e07810ef0 Replace C++ comments with C comments. 2007-01-17 09:40:34 +00:00
Thomas Heller 8138c26a83 Fixes for 64-bit Windows: In ctypes.wintypes, correct the definitions
of HANDLE, WPARAM, LPARAM data types.  Make parameterless foreign
function calls work.
2007-01-11 21:18:56 +00:00
Thomas Heller 9ae562efb1 Must change the version number in the _ctypes extension as well. 2007-01-10 20:51:19 +00:00
Thomas Heller ef583a4992 Fix #1563807: _ctypes built on AIX fails with ld ffi error.
The contents of ffi_darwin.c must be compiled unless __APPLE__ is
defined and __ppc__ is not.

Will backport.
2006-11-28 20:21:54 +00:00
Thomas Heller 25d208bd46 Fix bug #1598620: A ctypes structure cannot contain itself. 2006-11-24 18:45:39 +00:00
Martin v. Löwis 1b2f627f96 - Patch #1560695: Add .note.GNU-stack to ctypes' sysv.S so that
ctypes isn't considered as requiring executable stacks.
Will backport to 2.5.
2006-10-22 10:55:15 +00:00
Martin v. Löwis a811c38d8e Fix various minor errors in passing arguments to
PyArg_ParseTuple.
2006-10-19 11:00:37 +00:00
Thomas Heller d2ea4a2584 ctypes callback functions only support 'fundamental' result types.
Check this and raise an error when something else is used - before
this change ctypes would hang or crash when such a callback was
called.  This is a partial fix for #1574584.

Will backport to release25-maint.
2006-10-17 19:30:48 +00:00
Thomas Heller 2244af596a The cast function did not accept c_char_p or c_wchar_p instances
as first argument, and failed with a 'bad argument to internal function'
error message.
2006-09-07 19:09:54 +00:00
Thomas Heller fdb62f0e5f Anonymous structure fields that have a bit-width specified did not work,
and they gave a strange error message from PyArg_ParseTuple:
    function takes exactly 2 arguments (3 given).

With tests.
2006-09-07 18:56:28 +00:00
Thomas Heller b1a7d758e2 Add missing file for _ctypes.pyd port to win64 on AMD64. 2006-08-25 07:34:51 +00:00
Thomas Heller 98619f267c Port _ctypes.pyd to win64 on AMD64. 2006-08-25 07:27:33 +00:00
Neal Norwitz 9b17eba8be Move assert to after NULL check, otherwise we deref NULL in the assert.
Klocwork #307
2006-08-19 04:23:04 +00:00
Thomas Heller 0b21b43d49 Add asserts to check for 'impossible' NULL values, with comments.
In one place where I'n not 1000% sure about the non-NULL, raise
a RuntimeError for safety.

This should fix the klocwork issues that Neal sent me.  If so,
it should be applied to the release25-maint branch also.
2006-08-18 14:38:46 +00:00
Thomas Heller b4a0cf17c4 Remove the special casing of Py_None when converting the return value
of the Python part of a callback function to C.  If it cannot be
converted, call PyErr_WriteUnraisable with the exception we got.
Before, arbitrary data has been passed to the calling C code in this
case.

(I'm not really sure the NEWS entry is understandable, but I cannot
find better words)
2006-08-16 15:10:12 +00:00
Thomas Heller b0aa98fd4f The __repr__ method of a NULL py_object does no longer raise an
exception.  Remove a stray '?' character from the exception text
when the value is retrieved of such an object.

Includes tests.
2006-08-16 14:07:44 +00:00
Thomas Heller d32e616722 Add commented assert statements to check that the result of
PyObject_stgdict() and PyType_stgdict() calls are non-NULL before
dereferencing the result.  Hopefully this fixes what klocwork is
complaining about.

Fix a few other nits as well.
2006-08-16 13:03:11 +00:00
Thomas Heller 4dc5dd1f3b Check for NULL return value from new_CArgObject calls. 2006-08-15 13:07:21 +00:00
Thomas Heller ef8d513d62 Patch #1536908: Add support for AMD64 / OpenBSD.
Remove the -no-stack-protector compiler flag for OpenBSD
as it has been reported to be unneeded.
2006-08-14 16:17:41 +00:00
Thomas Heller 867200483b Apply the patch #1532975 plus ideas from the patch #1533481.
ctypes instances no longer have the internal and undocumented
'_as_parameter_' attribute which was used to adapt them to foreign
function calls; this mechanism is replaced by a function pointer in
the type's stgdict.

In the 'from_param' class methods, try the _as_parameter_ attribute if
other conversions are not possible.

This makes the documented _as_parameter_ mechanism work as intended.

Change the ctypes version number to 1.0.1.
2006-08-14 11:17:48 +00:00
Thomas Heller e6dd31c50b Revert the change that tries to zero out a closure's result storage
area because the size if unknown in source/callproc.c.
2006-08-14 10:02:24 +00:00
Thomas Heller dca703fbda Check for NULL return value of GenericCData_new().
Fixes klockwork issues #188, #189.
2006-08-14 07:50:14 +00:00
Thomas Heller efa2727334 Check for NULL return value from new_CArgObject().
Fixes klockwork issues #183, #184, #185.
2006-08-14 07:14:09 +00:00
Thomas Heller acdedfbf0a Remove unused, buggy test function.
Fixes klockwork issue #207.
2006-08-14 07:13:05 +00:00
Neal Norwitz 93bf902242 Handle alloca failures.
Klocwork 225-228
2006-08-13 18:40:39 +00:00
Neal Norwitz 6b4953fd3d Check returned pointer is valid.
Klocwork #233
2006-08-12 02:06:34 +00:00
Thomas Heller 2a899c8b76 When a ctypes C callback function is called, zero out the result
storage before converting the result to C data.  See the comment in
the code for details.

Provide a better context for errors when the conversion of a callback
function's result cannot be converted.
2006-08-11 19:55:35 +00:00
Thomas Heller d61d0733cb Speed up PyType_stgdict and PyObject_stgdict. 2006-08-01 19:14:15 +00:00
Thomas Heller 11d68a6ac4 Minimal useful docstring for CopyComPointer. 2006-08-01 17:46:10 +00:00
Thomas Heller 3de83e9b61 Fix a potential segfault and various potentail refcount leaks
in the cast() function.
2006-08-01 16:54:43 +00:00
Thomas Heller 1393d6a4ca Patch #1529514: More openbsd platforms for ctypes.
Regenerated Modules/_ctypes/libffi/configure with autoconf 2.59.

Approved by Neal.
2006-07-28 21:43:20 +00:00
Thomas Heller 944f3b6ecb Remove a useless XXX comment.
Cosmetic changes to the code so that the #ifdef _UNICODE block
doesn't mess emacs code formatting.
2006-07-28 19:42:40 +00:00
Neal Norwitz 93f2ca1f85 Check the allocation of b_objects and return if there was a failure.
Also fix a few memory leaks in other failure scenarios.

It seems that if b_objects == Py_None, we will have an extra ref to
b_objects.  Add XXX comment so hopefully someone documents why the
else isn't necessary or adds it in.

Reported by Klocwork #20
2006-07-23 07:55:55 +00:00