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Re: MirBSD mbtowc bug? failure on test-wcrtomb

From: Eric Blake
Subject: Re: MirBSD mbtowc bug? failure on test-wcrtomb
Date: Fri, 22 Oct 2010 12:05:31 -0600
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20100921 Fedora/3.1.4-1.fc13 Mnenhy/0.8.3 Thunderbird/3.1.4

On 10/22/2010 11:47 AM, Thorsten Glaser wrote:
Eric Blake dixit:

Yikes! setlocale() is busted when handed an unrecognized locale, in that it
falls back to a completely different locale rather than failing!

MirBSD has exactly one “locale”. And from what I gathered, back then,
other implementations also fall back, although, admittedly, to the "C"

But that's broken.  Per POSIX:


"If the string does not correspond to a valid locale, setlocale() shall return a null pointer and the international environment is not changed. Otherwise, setlocale() shall return the name of the locale just set."

Returning a completely different string (en_US.UTF-8), and in particular falling back on a locale that is not the C locale, is just crazy.

Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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