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Workaround bug in LocaleNameToLCID on Windows 10

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* nlsfuncs.cc (__get_lcid_from_locale): Handle LocaleNameToLCID
	returning LOCALE_CUSTOM_UNSPECIFIED instead of failing in case of
	an unsupported locale on Windows 10.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2015-10-30 20:13:26 +01:00
parent 4a407e9037
commit 677eea00a6
3 changed files with 22 additions and 6 deletions
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6
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,9 @@
2015-10-30 Corinna Vinschen <corinna@vinschen.de>
* nlsfuncs.cc (__get_lcid_from_locale): Handle LocaleNameToLCID
returning LOCALE_CUSTOM_UNSPECIFIED instead of failing in case of
an unsupported locale on Windows 10.
2015-10-30 Corinna Vinschen <corinna@vinschen.de>
* exceptions.cc (sigpacket::process): Avoid potentially double unlocking

19
winsup/cygwin/nlsfuncs.cc
View File

@ -1,6 +1,6 @@
/* nlsfuncs.cc: NLS helper functions
Copyright 2010, 2011, 2012, 2013 Red Hat, Inc.
Copyright 2010, 2011, 2012, 2013, 2015 Red Hat, Inc.
This file is part of Cygwin.
@ -88,7 +88,9 @@ __get_lcid_from_locale (const char *name)
*c = '-';
mbstowcs (wlocale, locale, ENCODING_LEN + 1);
lcid = LocaleNameToLCID (wlocale, 0);
if (lcid == 0)
/* Bug on Windows 10: LocaleNameToLCID returns LOCALE_CUSTOM_UNSPECIFIED
for unknown locales. */
if (lcid == 0 || lcid == LOCALE_CUSTOM_UNSPECIFIED)
{
/* Unfortunately there are a couple of locales for which no form
without a Script part per RFC 4646 exists.
@ -127,24 +129,29 @@ __get_lcid_from_locale (const char *name)
{
/* Vista/2K8 is missing sr-ME and sr-RS. It has only the
deprecated sr-CS. So we map ME and RS to CS here. */
if (lcid == 0)
if (lcid == 0 || lcid == LOCALE_CUSTOM_UNSPECIFIED)
lcid = LocaleNameToLCID (L"sr-Cyrl-CS", 0);
/* "@latin" modifier for the sr_XY locales changes
collation behaviour so lcid should accommodate that
by being set to the Latin sublang. */
if (lcid != 0 && has_modifier ("@latin"))
if (lcid != 0 && lcid != LOCALE_CUSTOM_UNSPECIFIED
&& has_modifier ("@latin"))
lcid = MAKELANGID (lcid & 0x3ff, (lcid >> 10) - 1);
}
else if (!strncmp (locale, "uz-", 3))
{
/* Equivalent for "@cyrillic" modifier in uz_UZ locale */
if (lcid != 0 && has_modifier ("@cyrillic"))
if (lcid != 0 && lcid != LOCALE_CUSTOM_UNSPECIFIED
&& has_modifier ("@cyrillic"))
lcid = MAKELANGID (lcid & 0x3ff, (lcid >> 10) + 1);
}
break;
}
}
last_lcid = lcid ?: (LCID) -1;
if (lcid && lcid != LOCALE_CUSTOM_UNSPECIFIED)
last_lcid = lcid;
else
last_lcid = (LCID) -1;
debug_printf ("LCID=%04y", last_lcid);
return last_lcid;
}

3
winsup/cygwin/release/2.3.0
View File

@ -57,3 +57,6 @@ Bug Fixes
- Fix sigwait(3) to return errno instead of -1 and never to return with EINTR.
- Fix pthread_kill(3) to return errno instead of -1.
- Workaround a bug in Windows 10 NLS handling.
Addresses: https://cygwin.com/ml/cygwin/2015-10/msg00547.html