443 static PyObject * PyPAM_getenvlist(PyObject *self, PyObject *args)
444 {
445     char                **result, *cp;
446     PyObject            *retval, *entry;
447     PyPAMObject            *_self = (PyPAMObject *) self;
448     
449     result = pam_getenvlist(_self->pamh);
450     
451     if (result == NULL) {
452         Py_INCREF(Py_None);
when treating unknown char * * from PAMmodule.c:450 as non-NULL
taking False path
453         return Py_None;
454     }
455     
456     retval = PyList_New(0);
457     
when PyList_New() succeeds
458     while ((cp = *(result++)) != NULL) {
459         entry = Py_BuildValue("s", cp);
when treating unknown char * from PAMmodule.c:459 as non-NULL
taking True path
460         PyList_Append(retval, entry);
when Py_BuildValue() fails
461         Py_DECREF(entry);
returning -1 from PyList_Append() due to NULL item
462     }
dereferencing NULL (entry->ob_refcnt) at PAMmodule.c:462
463     
464     return retval;
465 }
466 

443 static PyObject * PyPAM_getenvlist(PyObject *self, PyObject *args)
444 {
445     char                **result, *cp;
446     PyObject            *retval, *entry;
447     PyPAMObject            *_self = (PyPAMObject *) self;
448     
449     result = pam_getenvlist(_self->pamh);
450     
451     if (result == NULL) {
452         Py_INCREF(Py_None);
when treating unknown char * * from PAMmodule.c:450 as non-NULL
taking False path
453         return Py_None;
454     }
455     
456     retval = PyList_New(0);
457     
when PyList_New() fails
458     while ((cp = *(result++)) != NULL) {
459         entry = Py_BuildValue("s", cp);
when treating unknown char * from PAMmodule.c:459 as non-NULL
taking True path
460         PyList_Append(retval, entry);
when Py_BuildValue() succeeds
461         Py_DECREF(entry);
calling PyList_Append with NULL as argument 1 (retval) at PAMmodule.c:461
PyList_Append() invokes Py_TYPE() on the pointer via the PyList_Check() macro, thus accessing (NULL)->ob_type
found 1 similar trace(s) to this
462     }
463     
464     return retval;
465 }
466