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glibc/localedata/tst-setlocale3.c
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/* Regression test for setlocale invalid environment variable handling. | |
Copyright (C) 2014-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <locale.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
/* The result of setlocale may be overwritten by subsequent calls, so | |
this wrapper makes a copy. */ | |
static char * | |
setlocale_copy (int category, const char *locale) | |
{ | |
const char *result = setlocale (category, locale); | |
if (result == NULL) | |
return NULL; | |
return strdup (result); | |
} | |
static char *de_locale; | |
static void | |
setlocale_fail (const char *envstring) | |
{ | |
setenv ("LC_CTYPE", envstring, 1); | |
if (setlocale (LC_CTYPE, "") != NULL) | |
{ | |
printf ("unexpected setlocale success for \"%s\" locale\n", envstring); | |
exit (1); | |
} | |
const char *newloc = setlocale (LC_CTYPE, NULL); | |
if (strcmp (newloc, de_locale) != 0) | |
{ | |
printf ("failed setlocale call \"%s\" changed locale to \"%s\"\n", | |
envstring, newloc); | |
exit (1); | |
} | |
} | |
static void | |
setlocale_success (const char *envstring) | |
{ | |
setenv ("LC_CTYPE", envstring, 1); | |
char *newloc = setlocale_copy (LC_CTYPE, ""); | |
if (newloc == NULL) | |
{ | |
printf ("setlocale for \"%s\": %m\n", envstring); | |
exit (1); | |
} | |
if (strcmp (newloc, de_locale) == 0) | |
{ | |
printf ("setlocale with LC_CTYPE=\"%s\" left locale at \"%s\"\n", | |
envstring, de_locale); | |
exit (1); | |
} | |
if (setlocale (LC_CTYPE, de_locale) == NULL) | |
{ | |
printf ("restoring locale \"%s\" with LC_CTYPE=\"%s\": %m\n", | |
de_locale, envstring); | |
exit (1); | |
} | |
char *newloc2 = setlocale_copy (LC_CTYPE, newloc); | |
if (newloc2 == NULL) | |
{ | |
printf ("restoring locale \"%s\" following \"%s\": %m\n", | |
newloc, envstring); | |
exit (1); | |
} | |
if (strcmp (newloc, newloc2) != 0) | |
{ | |
printf ("representation of locale \"%s\" changed from \"%s\" to \"%s\"", | |
envstring, newloc, newloc2); | |
exit (1); | |
} | |
free (newloc); | |
free (newloc2); | |
if (setlocale (LC_CTYPE, de_locale) == NULL) | |
{ | |
printf ("restoring locale \"%s\" with LC_CTYPE=\"%s\": %m\n", | |
de_locale, envstring); | |
exit (1); | |
} | |
} | |
/* Checks that a known-good locale still works if LC_ALL contains a | |
value which should be ignored. */ | |
static void | |
setlocale_ignore (const char *to_ignore) | |
{ | |
const char *fr_locale = "fr_FR.UTF-8"; | |
setenv ("LC_CTYPE", fr_locale, 1); | |
char *expected_locale = setlocale_copy (LC_CTYPE, ""); | |
if (expected_locale == NULL) | |
{ | |
printf ("setlocale with LC_CTYPE=\"%s\" failed: %m\n", fr_locale); | |
exit (1); | |
} | |
if (setlocale (LC_CTYPE, de_locale) == NULL) | |
{ | |
printf ("failed to restore locale: %m\n"); | |
exit (1); | |
} | |
unsetenv ("LC_CTYPE"); | |
setenv ("LC_ALL", to_ignore, 1); | |
setenv ("LC_CTYPE", fr_locale, 1); | |
const char *actual_locale = setlocale (LC_CTYPE, ""); | |
if (actual_locale == NULL) | |
{ | |
printf ("setlocale with LC_ALL, LC_CTYPE=\"%s\" failed: %m\n", | |
fr_locale); | |
exit (1); | |
} | |
if (strcmp (actual_locale, expected_locale) != 0) | |
{ | |
printf ("setlocale under LC_ALL failed: got \"%s\", expected \"%s\"\n", | |
actual_locale, expected_locale); | |
exit (1); | |
} | |
unsetenv ("LC_CTYPE"); | |
setlocale_success (fr_locale); | |
unsetenv ("LC_ALL"); | |
free (expected_locale); | |
} | |
static int | |
do_test (void) | |
{ | |
/* The glibc test harness sets this environment variable | |
uncondionally. */ | |
unsetenv ("LC_ALL"); | |
de_locale = setlocale_copy (LC_CTYPE, "de_DE.UTF-8"); | |
if (de_locale == NULL) | |
{ | |
printf ("setlocale (LC_CTYPE, \"de_DE.UTF-8\"): %m\n"); | |
return 1; | |
} | |
setlocale_success ("C"); | |
setlocale_success ("en_US.UTF-8"); | |
setlocale_success ("/en_US.UTF-8"); | |
setlocale_success ("//en_US.UTF-8"); | |
setlocale_ignore (""); | |
setlocale_fail ("does-not-exist"); | |
setlocale_fail ("/"); | |
setlocale_fail ("/../localedata/en_US.UTF-8"); | |
setlocale_fail ("en_US.UTF-8/"); | |
setlocale_fail ("en_US.UTF-8/.."); | |
setlocale_fail ("en_US.UTF-8/../en_US.UTF-8"); | |
setlocale_fail ("../localedata/en_US.UTF-8"); | |
{ | |
size_t large_length = 1024; | |
char *large_name = malloc (large_length + 1); | |
if (large_name == NULL) | |
{ | |
puts ("malloc failure"); | |
return 1; | |
} | |
memset (large_name, '/', large_length); | |
const char *suffix = "en_US.UTF-8"; | |
strcpy (large_name + large_length - strlen (suffix), suffix); | |
setlocale_fail (large_name); | |
free (large_name); | |
} | |
{ | |
size_t huge_length = 64 * 1024 * 1024; | |
char *huge_name = malloc (huge_length + 1); | |
if (huge_name == NULL) | |
{ | |
puts ("malloc failure"); | |
return 1; | |
} | |
memset (huge_name, 'X', huge_length); | |
huge_name[huge_length] = '\0'; | |
/* Construct a composite locale specification. */ | |
const char *prefix = "LC_CTYPE=de_DE.UTF-8;LC_TIME="; | |
memcpy (huge_name, prefix, strlen (prefix)); | |
setlocale_fail (huge_name); | |
free (huge_name); | |
} | |
return 0; | |
} | |
#define TEST_FUNCTION do_test () | |
#include "../test-skeleton.c" |