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5c4d5bfaf5
_testcapimodule.c
make sure PyList_Reverse doesn't blow up again
getargs.c
assert args isn't NULL at the top of vgetargs1 instead of
waiting for a NULL-pointer dereference at the end
115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
/*
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* C Extension module to test Python interpreter C APIs.
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*
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* The 'test_*' functions exported by this module are run as part of the
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* standard Python regression test, via Lib/test/test_capi.py.
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*/
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#include "Python.h"
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static PyObject *TestError; /* set to exception object in init */
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/* Test #defines from config.h (particularly the SIZEOF_* defines).
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The ones derived from autoconf on the UNIX-like OSes can be relied
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upon (in the absence of sloppy cross-compiling), but the Windows
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platforms have these hardcoded. Better safe than sorry.
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*/
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static PyObject*
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sizeof_error(const char* fatname, const char* typename,
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int expected, int got)
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{
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char buf[1024];
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sprintf(buf, "%s #define == %d but sizeof(%s) == %d",
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fatname, expected, typename, got);
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PyErr_SetString(TestError, buf);
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return (PyObject*)NULL;
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}
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static PyObject*
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test_config(PyObject *self, PyObject *args)
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{
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if (!PyArg_ParseTuple(args, ":test_config"))
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return NULL;
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#define CHECK_SIZEOF(FATNAME, TYPE) \
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if (FATNAME != sizeof(TYPE)) \
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return sizeof_error(#FATNAME, #TYPE, FATNAME, sizeof(TYPE))
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CHECK_SIZEOF(SIZEOF_INT, int);
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CHECK_SIZEOF(SIZEOF_LONG, long);
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CHECK_SIZEOF(SIZEOF_VOID_P, void*);
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CHECK_SIZEOF(SIZEOF_TIME_T, time_t);
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#ifdef HAVE_LONG_LONG
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CHECK_SIZEOF(SIZEOF_LONG_LONG, LONG_LONG);
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#endif
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#undef CHECK_SIZEOF
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject*
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test_list_api(PyObject *self, PyObject *args)
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{
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PyObject* list;
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int i;
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if (!PyArg_ParseTuple(args, ":test_list_api"))
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return NULL;
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/* SF bug 132008: PyList_Reverse segfaults */
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#define NLIST 30
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list = PyList_New(NLIST);
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if (list == (PyObject*)NULL)
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return (PyObject*)NULL;
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/* list = range(NLIST) */
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for (i = 0; i < NLIST; ++i) {
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PyObject* anint = PyInt_FromLong(i);
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if (anint == (PyObject*)NULL) {
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Py_DECREF(list);
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return (PyObject*)NULL;
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}
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PyList_SET_ITEM(list, i, anint);
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}
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/* list.reverse(), via PyList_Reverse() */
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i = PyList_Reverse(list); /* should not blow up! */
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if (i != 0) {
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Py_DECREF(list);
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return (PyObject*)NULL;
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}
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/* Check that list == range(29, -1, -1) now */
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for (i = 0; i < NLIST; ++i) {
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PyObject* anint = PyList_GET_ITEM(list, i);
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if (PyInt_AS_LONG(anint) != NLIST-1-i) {
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PyErr_SetString(TestError,
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"test_list_api: reverse screwed up");
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Py_DECREF(list);
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return (PyObject*)NULL;
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}
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}
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Py_DECREF(list);
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#undef NLIST
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyMethodDef TestMethods[] = {
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{"test_config", test_config, METH_VARARGS},
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{"test_list_api", test_list_api, METH_VARARGS},
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{NULL, NULL} /* sentinel */
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};
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DL_EXPORT(void)
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init_testcapi(void)
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{
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PyObject *m, *d;
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m = Py_InitModule("_testcapi", TestMethods);
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TestError = PyErr_NewException("_testcapi.error", NULL, NULL);
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d = PyModule_GetDict(m);
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PyDict_SetItemString(d, "error", TestError);
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}
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