diff options
Diffstat (limited to 'Python')
| -rw-r--r-- | Python/sysmodule.c | 52 |
1 files changed, 32 insertions, 20 deletions
diff --git a/Python/sysmodule.c b/Python/sysmodule.c index a6e1716..a4161da 100644 --- a/Python/sysmodule.c +++ b/Python/sysmodule.c @@ -1643,12 +1643,13 @@ sys_getwindowsversion_impl(PyObject *module) int pos = 0; OSVERSIONINFOEXW ver; - version = PyObject_GetAttrString(module, "_cached_windows_version"); + if (PyObject_GetOptionalAttrString(module, "_cached_windows_version", &version) < 0) { + return NULL; + }; if (version && PyObject_TypeCheck(version, &WindowsVersionType)) { return version; } Py_XDECREF(version); - PyErr_Clear(); ver.dwOSVersionInfoSize = sizeof(ver); if (!GetVersionExW((OSVERSIONINFOW*) &ver)) @@ -1658,15 +1659,24 @@ sys_getwindowsversion_impl(PyObject *module) if (version == NULL) return NULL; - PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.dwMajorVersion)); - PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.dwMinorVersion)); - PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.dwBuildNumber)); - PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.dwPlatformId)); - PyStructSequence_SET_ITEM(version, pos++, PyUnicode_FromWideChar(ver.szCSDVersion, -1)); - PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wServicePackMajor)); - PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wServicePackMinor)); - PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wSuiteMask)); - PyStructSequence_SET_ITEM(version, pos++, PyLong_FromLong(ver.wProductType)); +#define SET_VERSION_INFO(CALL) \ + do { \ + PyObject *item = (CALL); \ + if (item == NULL) { \ + goto error; \ + } \ + PyStructSequence_SET_ITEM(version, pos++, item); \ + } while(0) + + SET_VERSION_INFO(PyLong_FromLong(ver.dwMajorVersion)); + SET_VERSION_INFO(PyLong_FromLong(ver.dwMinorVersion)); + SET_VERSION_INFO(PyLong_FromLong(ver.dwBuildNumber)); + SET_VERSION_INFO(PyLong_FromLong(ver.dwPlatformId)); + SET_VERSION_INFO(PyUnicode_FromWideChar(ver.szCSDVersion, -1)); + SET_VERSION_INFO(PyLong_FromLong(ver.wServicePackMajor)); + SET_VERSION_INFO(PyLong_FromLong(ver.wServicePackMinor)); + SET_VERSION_INFO(PyLong_FromLong(ver.wSuiteMask)); + SET_VERSION_INFO(PyLong_FromLong(ver.wProductType)); // GetVersion will lie if we are running in a compatibility mode. // We need to read the version info from a system file resource @@ -1674,6 +1684,10 @@ sys_getwindowsversion_impl(PyObject *module) // just return whatever GetVersion said. PyObject *realVersion = _sys_getwindowsversion_from_kernel32(); if (!realVersion) { + if (!PyErr_ExceptionMatches(PyExc_WindowsError)) { + return NULL; + } + PyErr_Clear(); realVersion = Py_BuildValue("(kkk)", ver.dwMajorVersion, @@ -1682,21 +1696,19 @@ sys_getwindowsversion_impl(PyObject *module) ); } - if (realVersion) { - PyStructSequence_SET_ITEM(version, pos++, realVersion); - } + SET_VERSION_INFO(realVersion); - if (PyErr_Occurred()) { - Py_DECREF(version); - return NULL; - } +#undef SET_VERSION_INFO if (PyObject_SetAttrString(module, "_cached_windows_version", version) < 0) { - Py_DECREF(version); - return NULL; + goto error; } return version; + +error: + Py_DECREF(version); + return NULL; } #pragma warning(pop) |