diff options
Diffstat (limited to 'Misc/coverity_model.c')
-rw-r--r-- | Misc/coverity_model.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/Misc/coverity_model.c b/Misc/coverity_model.c deleted file mode 100644 index 90c72c7baa3..00000000000 --- a/Misc/coverity_model.c +++ /dev/null @@ -1,179 +0,0 @@ -/* 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 unsigned short wchar_t; -typedef struct {} PyObject; -typedef struct {} grammar; -typedef struct {} DIR; -typedef struct {} RFILE; - -/* Python/pythonrun.c - * resource 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(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 tainted. - */ - -PyObject *PyErr_SetFromErrnoWithFilename(PyObject *exc, const char *filename) -{ - __coverity_tainted_data_sink__(filename); - return NULL; -} - -/* Python/fileutils.c */ -wchar_t *Py_DecodeLocale(const char* arg, size_t *size) -{ - wchar_t *w; - __coverity_tainted_data_sink__(arg); - __coverity_tainted_data_sink__(size); - return w; -} - -/* 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; -} - -/* Modules/_datetime.c - * - * Coverity thinks that the input values for these function come from a - * tainted source PyDateTime_DATE_GET_* macros use bit shifting. - */ -static PyObject * -build_struct_time(int y, int m, int d, int hh, int mm, int ss, int dstflag) -{ - PyObject *result; - - __coverity_tainted_data_sanitize__(y); - __coverity_tainted_data_sanitize__(m); - __coverity_tainted_data_sanitize__(d); - __coverity_tainted_data_sanitize__(hh); - __coverity_tainted_data_sanitize__(mm); - __coverity_tainted_data_sanitize__(ss); - __coverity_tainted_data_sanitize__(dstflag); - - return result; -} - -static int -ymd_to_ord(int year, int month, int day) -{ - int ord = 0; - - __coverity_tainted_data_sanitize__(year); - __coverity_tainted_data_sanitize__(month); - __coverity_tainted_data_sanitize__(day); - - return ord; -} - -static int -normalize_date(int *year, int *month, int *day) -{ - __coverity_tainted_data_sanitize__(*year); - __coverity_tainted_data_sanitize__(*month); - __coverity_tainted_data_sanitize__(*day); - - return 0; -} - -static int -weekday(int year, int month, int day) -{ - int w = 0; - - __coverity_tainted_data_sanitize__(year); - __coverity_tainted_data_sanitize__(month); - __coverity_tainted_data_sanitize__(day); - - return w; -} - |