mirror of
https://github.com/python/cpython.git
synced 2024-11-28 16:45:42 +01:00
133 lines
2.9 KiB
C
133 lines
2.9 KiB
C
/* Coverity Scan model
|
|
*
|
|
* This is a modeling file for Coverity Scan. Modeling helps to avoid false
|
|
* positives.
|
|
*
|
|
* - A model file can't import any header files.
|
|
* - Therefore only some built-in primitives like int, char and void are
|
|
* available but not wchar_t, NULL etc.
|
|
* - Modeling doesn't need full structs and typedefs. Rudimentary structs
|
|
* and similar types are sufficient.
|
|
* - An uninitialized local pointer is not an error. It signifies that the
|
|
* variable could be either NULL or have some data.
|
|
*
|
|
* Coverity Scan doesn't pick up modifications automatically. The model file
|
|
* must be uploaded by an admin in the analysis settings of
|
|
* http://scan.coverity.com/projects/200
|
|
*/
|
|
|
|
/* dummy definitions, in most cases struct fields aren't required. */
|
|
|
|
#define NULL (void *)0
|
|
#define assert(op) /* empty */
|
|
typedef int sdigit;
|
|
typedef long Py_ssize_t;
|
|
typedef long long PY_LONG_LONG;
|
|
typedef unsigned short wchar_t;
|
|
typedef struct {} PyObject;
|
|
typedef struct {} grammar;
|
|
typedef struct {} DIR;
|
|
typedef struct {} RFILE;
|
|
|
|
/* Python/pythonrun.c
|
|
* resourece leak false positive */
|
|
|
|
void Py_FatalError(const char *msg) {
|
|
__coverity_panic__();
|
|
}
|
|
|
|
/* Objects/longobject.c
|
|
* NEGATIVE_RETURNS false positive */
|
|
|
|
static PyObject *get_small_int(sdigit ival)
|
|
{
|
|
/* Never returns NULL */
|
|
PyObject *p;
|
|
assert(p != NULL);
|
|
return p;
|
|
}
|
|
|
|
PyObject *PyLong_FromLong(long ival)
|
|
{
|
|
PyObject *p;
|
|
int maybe;
|
|
|
|
if ((ival >= -5) && (ival < 257 + 5)) {
|
|
p = get_small_int(ival);
|
|
assert(p != NULL);
|
|
return p;
|
|
}
|
|
if (maybe)
|
|
return p;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
PyObject *PyLong_FromLongLong(PY_LONG_LONG ival)
|
|
{
|
|
return PyLong_FromLong((long)ival);
|
|
}
|
|
|
|
PyObject *PyLong_FromSsize_t(Py_ssize_t ival)
|
|
{
|
|
return PyLong_FromLong((long)ival);
|
|
}
|
|
|
|
/* tainted sinks
|
|
*
|
|
* Coverity considers argv, environ, read() data etc as tained.
|
|
*/
|
|
|
|
PyObject *PyErr_SetFromErrnoWithFilename(PyObject *exc, const char *filename)
|
|
{
|
|
__coverity_tainted_data_sink__(filename);
|
|
return NULL;
|
|
}
|
|
|
|
/* Python/fileutils.c */
|
|
wchar_t *_Py_char2wchar(const char* arg, size_t *size)
|
|
{
|
|
wchar_t *w;
|
|
__coverity_tainted_data_sink__(arg);
|
|
__coverity_tainted_data_sink__(size);
|
|
return w;
|
|
}
|
|
|
|
/* Parser/pgenmain.c */
|
|
grammar *getgrammar(char *filename)
|
|
{
|
|
grammar *g;
|
|
__coverity_tainted_data_sink__(filename);
|
|
return g;
|
|
}
|
|
|
|
/* Python/marshal.c */
|
|
|
|
static Py_ssize_t r_string(char *s, Py_ssize_t n, RFILE *p)
|
|
{
|
|
__coverity_tainted_string_argument__(s);
|
|
return 0;
|
|
}
|
|
|
|
static long r_long(RFILE *p)
|
|
{
|
|
long l;
|
|
unsigned char buffer[4];
|
|
|
|
r_string((char *)buffer, 4, p);
|
|
__coverity_tainted_string_sanitize_content__(buffer);
|
|
l = (long)buffer;
|
|
return l;
|
|
}
|
|
|
|
/* Coverity doesn't understand that fdopendir() may take ownership of fd. */
|
|
|
|
DIR *fdopendir(int fd) {
|
|
DIR *d;
|
|
if (d) {
|
|
__coverity_close__(fd);
|
|
}
|
|
return d;
|
|
}
|
|
|