From 947d330f68c49680dcc54439f56da2a297228962 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Mon, 31 Jul 2017 23:08:27 -0400 Subject: add _NL_LOCALE_NAME extension to nl_langinfo since setlocale(cat, NULL) is required to return the setting for the global locale, there is no standard mechanism to obtain the name of the currently active thread-local locale set by uselocale. this makes it impossible for application/library software to load appropriate translations, etc. unless using the gettext implementation provided by libc, which has privileged access to libc internals. to fill this gap, glibc introduced the _NL_LOCALE_NAME macro which can be used with nl_langinfo to obtain the name. GNU gettext/gnulib code already use this functionality on glibc, and can easily be adapted to make use of it on non-glibc systems if it's available; for other systems they poke at locale implementation internals, which we want to avoid. this patch provides a compatible interface to the one glibc introduced. --- src/locale/langinfo.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/locale/langinfo.c') diff --git a/src/locale/langinfo.c b/src/locale/langinfo.c index b2c8569e..b16caf44 100644 --- a/src/locale/langinfo.c +++ b/src/locale/langinfo.c @@ -34,6 +34,10 @@ char *__nl_langinfo_l(nl_item item, locale_t loc) const char *str; if (item == CODESET) return MB_CUR_MAX==1 ? "ASCII" : "UTF-8"; + + /* _NL_LOCALE_NAME extension */ + if (idx == 65535 && cat < LC_ALL) + return loc->cat[cat] ? (char *)loc->cat[cat]->name : "C"; switch (cat) { case LC_NUMERIC: -- cgit 1.4.1