[New-bugs-announce] [issue13617] Reject embedded null characters in wchar* strings

[STINNER Victor]

New submission from STINNER Victor <victor.stinner at haypocalc.com>:

The curses module (only since Python 3.3), locale.strcoll(), locale.strxfrm(), time.strftime() and imp.NullImporter() (only on Windows) accept embedded null characters, whereas they convert the Unicode string to a wide character (wchar_t*) string.

The problem is that the null character truncates the string. Example:


>>> locale.strxfrm('a')
'a'
>>> locale.strxfrm('a\0b')
'a'

Attached patch fixes these functions. I wrote the patch for Python 3.3.

----------
components: Library (Lib), Unicode
files: embedded_nul.patch
keywords: patch
messages: 149656
nosy: ezio.melotti, haypo
priority: normal
severity: normal
status: open
title: Reject embedded null characters in wchar* strings
versions: Python 3.2, Python 3.3
Added file: http://bugs.python.org/file23984/embedded_nul.patch

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