From: Petr Pisar <petr.pisar@atlas.cz>
To: musl@lists.openwall.com
Subject: [musl] nl_langinfo(CODESET) does not match locale
Date: Sat, 11 May 2024 19:58:09 +0200 [thread overview]
Message-ID: <Zj-xseFnuBhaaa76@album.bayer.uni.cx> (raw)
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When debugging test failures in libisds on Gentoo with musl
<https://bugs.gentoo.org/show_bug.cgi?id=928107>, I found that
nl_langinfo(CODESET) does not match current locale.
A reproducer:
#include <locale.h>
#include <stdio.h>
#include <langinfo.h>
int main(void) {
char *old_locale = setlocale(LC_ALL, "cs_CZ.ISO8859-2");
if (old_locale == NULL) {
perror("setlocale() set failed");
return 1;
}
old_locale = setlocale(LC_ALL, NULL);
if (old_locale == NULL) {
perror("setlocale() query failed");
return 1;
}
printf("Current LC_ALL=%s\n", old_locale);
printf("CODESET=%s\n", nl_langinfo(CODESET));
return 0;
}
# gcc test.c && ./a.out
Current LC_ALL=cs_CZ.ISO8859-2
CODESET=UTF-8
While on glibc:
$ gcc test.c && ./a.out
Current LC_ALL=cs_CZ.ISO8859-2
CODESET=ISO-8859-2
I can see that for cs_CZ.UTF8 locale, it nl_langinfo() correctly reports UTF-8,
as well for C reports ASCII. However, for any other character set it always
returns UTF-8.
I found a notice <https://wiki.gentoo.org/wiki/Musl_usage_guide#Locales> that
musl does not implements non-UTF-8 locales. If that is true, then selocale() for
"cs_CZ.ISO8859-2" should fail, instead of accepting the locale.
I observe this behavior with musl-1.2.5.
-- Petr
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next reply other threads:[~2024-05-11 17:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-11 17:58 Petr Pisar [this message]
2024-05-11 21:33 ` Rich Felker
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