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Issue #23466: Raised OverflowError if %c argument is out of range.

This commit is contained in:
Serhiy Storchaka 2015-04-03 20:53:46 +03:00
parent 45ec3288d0
commit 41525e31a5
2 changed files with 14 additions and 9 deletions
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12
Lib/test/test_format.py
View File

@ -358,12 +358,12 @@ class FormatTest(unittest.TestCase):
"not all arguments converted during bytes formatting")
test_exc(b'no format', bytearray(b'1'), TypeError,
"not all arguments converted during bytes formatting")
test_exc(b"%c", -1, TypeError,
"%c requires an integer in range(256) or a single byte")
test_exc(b"%c", 256, TypeError,
"%c requires an integer in range(256) or a single byte")
test_exc(b"%c", 2**128, TypeError,
"%c requires an integer in range(256) or a single byte")
test_exc(b"%c", -1, OverflowError,
"%c arg not in range(256)")
test_exc(b"%c", 256, OverflowError,
"%c arg not in range(256)")
test_exc(b"%c", 2**128, OverflowError,
"%c arg not in range(256)")
test_exc(b"%c", b"Za", TypeError,
"%c requires an integer in range(256) or a single byte")
test_exc(b"%c", "Y", TypeError,

9
Objects/bytesobject.c
View File

@ -496,11 +496,16 @@ byte_converter(PyObject *arg, char *p)
ival = PyLong_AsLongAndOverflow(iobj, &overflow);
Py_DECREF(iobj);
}
if (!overflow && 0 <= ival && ival <= 255) {
if (!overflow && ival == -1 && PyErr_Occurred())
goto onError;
if (overflow || !(0 <= ival && ival <= 255)) {
PyErr_SetString(PyExc_OverflowError,
"%c arg not in range(256)");
return 0;
}
*p = (char)ival;
return 1;
}
}
onError:
PyErr_SetString(PyExc_TypeError,
"%c requires an integer in range(256) or a single byte");