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Issue #18184: PyUnicode_FromFormat() and PyUnicode_FromFormatV() now raise 

OverflowError when an argument of %c format is out of range.
This commit is contained in:
Serhiy Storchaka 2013-06-23 20:21:16 +03:00
parent fcce2024ea 8eeae2126c
commit c89533f72f
3 changed files with 6 additions and 1 deletions
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2
Lib/test/test_unicode.py
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@ -2048,6 +2048,8 @@ class UnicodeTest(string_tests.CommonTest,
b'%c', c_int(0xabcd)) b'%c', c_int(0xabcd))
check_format('\U0010ffff', check_format('\U0010ffff',
b'%c', c_int(0x10ffff)) b'%c', c_int(0x10ffff))
with self.assertRaises(OverflowError):
PyUnicode_FromFormat(b'%c', c_int(0x110000))
# Issue #18183 # Issue #18183
check_format('\U00010000\U00100000', check_format('\U00010000\U00100000',
b'%c%c', c_int(0x10000), c_int(0x100000)) b'%c%c', c_int(0x10000), c_int(0x100000))

3
Misc/NEWS
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@ -10,6 +10,9 @@ What's New in Python 3.4.0 Alpha 1?
Core and Builtins Core and Builtins
----------------- -----------------
- Issue #18184: PyUnicode_FromFormat() and PyUnicode_FromFormatV() now raise
OverflowError when an argument of %c format is out of range.
- Issue #18137: Detect integer overflow on precision in float.__format__() - Issue #18137: Detect integer overflow on precision in float.__format__()
and complex.__format__(). and complex.__format__().

2
Objects/unicodeobject.c
View File

@ -2496,7 +2496,7 @@ unicode_fromformat_arg(_PyUnicodeWriter *writer,
{ {
int ordinal = va_arg(*vargs, int); int ordinal = va_arg(*vargs, int);
if (ordinal < 0 || ordinal > MAX_UNICODE) { if (ordinal < 0 || ordinal > MAX_UNICODE) {
PyErr_SetString(PyExc_ValueError, PyErr_SetString(PyExc_OverflowError,
"character argument not in range(0x110000)"); "character argument not in range(0x110000)");
return NULL; return NULL;
} }