400 static PyObject *
401 crypto_dump_certificate_request(PyObject *spam, PyObject *args)
402 {
403     int type, ret, buf_len;
404     char *temp;
405     PyObject *buffer;
406     BIO *bio;
407     crypto_X509ReqObj *req;
408 
409     if (!PyArg_ParseTuple(args, "iO!:dump_certificate_request", &type,
when PyArg_ParseTuple() succeeds
taking False path
410 			  &crypto_X509Req_Type, &req))
411         return NULL;
412 
413     bio = BIO_new(BIO_s_mem());
414     switch (type)
when following case 1
415     {
416         case X509_FILETYPE_PEM:
417             ret = PEM_write_bio_X509_REQ(bio, req->x509_req);
418             break;
419 
420         case X509_FILETYPE_ASN1:
421             ret = i2d_X509_REQ_bio(bio, req->x509_req);
422             break;
423 
424         case X509_FILETYPE_TEXT:
425             ret = X509_REQ_print_ex(bio, req->x509_req, 0, 0);
426             break;
427 
428         default:
429             PyErr_SetString(PyExc_ValueError, "type argument must be FILETYPE_PEM, FILETYPE_ASN1, or FILETYPE_TEXT");
430             BIO_free(bio);
431             return NULL;
432     }
433 
434     if (ret == 0)
when considering value == (int)0 from OpenSSL/crypto/crypto.c:417
taking True path
435     {
436         BIO_free(bio);
437         exception_from_error_queue(crypto_Error);
438         return NULL;
439     }
440 
441     buf_len = BIO_get_mem_data(bio, &temp);
442     buffer = PyBytes_FromStringAndSize(temp, buf_len);
443     BIO_free(bio);
444 
445     return buffer;
446 }
returning (PyObject*)NULL without setting an exception
found 2 similar trace(s) to this