For tests that call uselocale(), the locale is stored in the g_userlocale_key thread-specific key. If freelocale() is called later, then g_uselocal_key points to a deleted pointer. CTS eventually calls vfprintf to print the result, which calls MB_CUR_MAX and MB_CUR_MAX accesses the deleted locale stored in g_uselocale_key, causing unpredictable errors. Fixed the tests by calling uselocale() with the old locale before calling freelocale. Bug: 17299565 Change-Id: I87efa2a9b16999a11d587f68d3aeedcbe6ac8a2c
		
			
				
	
	
		
			126 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			126 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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 * Copyright (C) 2014 The Android Open Source Project
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 * you may not use this file except in compliance with the License.
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 * You may obtain a copy of the License at
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 *
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 *      http://www.apache.org/licenses/LICENSE-2.0
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS,
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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 * See the License for the specific language governing permissions and
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 * limitations under the License.
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 */
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#include <gtest/gtest.h>
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#include <errno.h>
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#include <limits.h>
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#include <locale.h>
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TEST(locale, localeconv) {
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  EXPECT_STREQ(".", localeconv()->decimal_point);
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  EXPECT_STREQ("", localeconv()->thousands_sep);
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  EXPECT_STREQ("", localeconv()->grouping);
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  EXPECT_STREQ("", localeconv()->int_curr_symbol);
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  EXPECT_STREQ("", localeconv()->currency_symbol);
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  EXPECT_STREQ("", localeconv()->mon_decimal_point);
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  EXPECT_STREQ("", localeconv()->mon_thousands_sep);
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  EXPECT_STREQ("", localeconv()->mon_grouping);
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  EXPECT_STREQ("", localeconv()->positive_sign);
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  EXPECT_STREQ("", localeconv()->negative_sign);
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  EXPECT_EQ(CHAR_MAX, localeconv()->int_frac_digits);
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  EXPECT_EQ(CHAR_MAX, localeconv()->frac_digits);
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  EXPECT_EQ(CHAR_MAX, localeconv()->p_cs_precedes);
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  EXPECT_EQ(CHAR_MAX, localeconv()->p_sep_by_space);
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  EXPECT_EQ(CHAR_MAX, localeconv()->n_cs_precedes);
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  EXPECT_EQ(CHAR_MAX, localeconv()->n_sep_by_space);
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  EXPECT_EQ(CHAR_MAX, localeconv()->p_sign_posn);
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  EXPECT_EQ(CHAR_MAX, localeconv()->n_sign_posn);
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  EXPECT_EQ(CHAR_MAX, localeconv()->int_p_cs_precedes);
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  EXPECT_EQ(CHAR_MAX, localeconv()->int_p_sep_by_space);
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  EXPECT_EQ(CHAR_MAX, localeconv()->int_n_cs_precedes);
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  EXPECT_EQ(CHAR_MAX, localeconv()->int_n_sep_by_space);
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  EXPECT_EQ(CHAR_MAX, localeconv()->int_p_sign_posn);
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  EXPECT_EQ(CHAR_MAX, localeconv()->int_n_sign_posn);
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}
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TEST(locale, setlocale) {
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  EXPECT_STREQ("C.UTF-8", setlocale(LC_ALL, NULL));
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  EXPECT_STREQ("C.UTF-8", setlocale(LC_CTYPE, NULL));
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  errno = 0;
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  EXPECT_EQ(NULL, setlocale(-1, NULL));
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  EXPECT_EQ(EINVAL, errno);
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  errno = 0;
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  EXPECT_EQ(NULL, setlocale(13, NULL));
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  EXPECT_EQ(EINVAL, errno);
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#if defined(__BIONIC__)
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  // The "" locale is implementation-defined. For bionic, it's the C locale.
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  // glibc will give us something like "en_US.UTF-8", depending on the user's configuration.
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  EXPECT_STREQ("C", setlocale(LC_ALL, ""));
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#endif
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  EXPECT_STREQ("C", setlocale(LC_ALL, "C"));
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  EXPECT_STREQ("C", setlocale(LC_ALL, "POSIX"));
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  errno = 0;
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  EXPECT_EQ(NULL, setlocale(LC_ALL, "this-is-not-a-locale"));
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  EXPECT_EQ(ENOENT, errno); // POSIX specified, not an implementation detail!
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}
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TEST(locale, newlocale) {
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  errno = 0;
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  EXPECT_EQ(0, newlocale(1 << 20, "C", 0));
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  EXPECT_EQ(EINVAL, errno);
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  locale_t l = newlocale(LC_ALL, "C", 0);
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  ASSERT_TRUE(l != NULL);
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  freelocale(l);
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  errno = 0;
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  EXPECT_EQ(0, newlocale(LC_ALL, "this-is-not-a-locale", 0));
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  EXPECT_EQ(ENOENT, errno); // POSIX specified, not an implementation detail!
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}
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TEST(locale, duplocale) {
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  locale_t cloned_global = duplocale(LC_GLOBAL_LOCALE);
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  ASSERT_TRUE(cloned_global != NULL);
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  freelocale(cloned_global);
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}
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TEST(locale, uselocale) {
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  locale_t original = uselocale(NULL);
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  EXPECT_FALSE(original == 0);
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  EXPECT_EQ(LC_GLOBAL_LOCALE, original);
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  locale_t n = newlocale(LC_ALL, "C", 0);
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  EXPECT_FALSE(n == 0);
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  EXPECT_FALSE(n == original);
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  locale_t old = uselocale(n);
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  EXPECT_TRUE(old == original);
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  EXPECT_EQ(n, uselocale(NULL));
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}
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TEST(locale, mb_cur_max) {
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  // We can't reliably test the behavior with setlocale(3) or the behavior for
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  // initial program conditions because (unless we're the only test that was
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  // run), another test has almost certainly called uselocale(3) in this thread.
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  // See b/16685652.
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  locale_t cloc = newlocale(LC_ALL, "C", 0);
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  locale_t cloc_utf8 = newlocale(LC_ALL, "C.UTF-8", 0);
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  locale_t old_locale = uselocale(cloc);
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  ASSERT_EQ(1U, MB_CUR_MAX);
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  uselocale(cloc_utf8);
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  ASSERT_EQ(4U, MB_CUR_MAX);
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  uselocale(old_locale);
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  freelocale(cloc);
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  freelocale(cloc_utf8);
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}
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