xref: /freebsd/lib/libc/tests/locale/newlocale_test.c (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright 2023 Yuri Pankov <yuripv@FreeBSD.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include <sys/param.h>
29 
30 #include <locale.h>
31 
32 #include <atf-c.h>
33 
34 struct {
35 	int		lpmask;
36 	const char	*lpname;
37 } lparts[] = {
38 	{ LC_COLLATE_MASK,	"LC_COLLATE" },
39 	{ LC_CTYPE_MASK,	"LC_CTYPE" },
40 	{ LC_MONETARY_MASK,	"LC_MONETARY" },
41 	{ LC_NUMERIC_MASK,	"LC_NUMERIC" },
42 	{ LC_TIME_MASK,		"LC_TIME" },
43 	{ LC_MESSAGES_MASK,	"LC_MESSAGES" },
44 };
45 
46 static void
47 check_lparts(const char *expected)
48 {
49 	int i;
50 
51 	for (i = 0; i < nitems(lparts); i++) {
52 		const char *actual;
53 
54 		actual = querylocale(lparts[i].lpmask, uselocale(NULL));
55 		ATF_CHECK_STREQ_MSG(expected, actual, "wrong value for %s",
56 		    lparts[i].lpname);
57 	}
58 }
59 
60 static void
61 do_locale_switch(const char *loc1, const char *loc2)
62 {
63 	locale_t l1, l2;
64 
65 	/* Create and use the first locale */
66 	l1 = newlocale(LC_ALL_MASK, loc1, NULL);
67 	ATF_REQUIRE(l1 != NULL);
68 	ATF_REQUIRE(uselocale(l1) != NULL);
69 	check_lparts(loc1);
70 	/*
71 	 * Create and use second locale, creation deliberately done only after
72 	 * the first locale check as newlocale() call would previously clobber
73 	 * the first locale contents.
74 	 */
75 	l2 = newlocale(LC_ALL_MASK, loc2, NULL);
76 	ATF_REQUIRE(l2 != NULL);
77 	ATF_REQUIRE(uselocale(l2) != NULL);
78 	check_lparts(loc2);
79 	/* Switch back to first locale */
80 	ATF_REQUIRE(uselocale(l1) != NULL);
81 	check_lparts(loc1);
82 
83 	freelocale(l1);
84 	freelocale(l2);
85 }
86 
87 /*
88  * PR 255646, 269375: Check that newlocale()/uselocale() used to switch between
89  * C, POSIX, and C.UTF-8 locales (and only these) do not stomp on other locale
90  * contents (collate part specifically).
91  * The issue is cosmetic only as all three have empty collate parts, but we need
92  * to correctly report the one in use in any case.
93  */
94 
95 ATF_TC_WITHOUT_HEAD(newlocale_c_posix_cu8_test);
96 ATF_TC_BODY(newlocale_c_posix_cu8_test, tc)
97 {
98 	do_locale_switch("C", "POSIX");
99 	do_locale_switch("C", "C.UTF-8");
100 	do_locale_switch("POSIX", "C");
101 	do_locale_switch("POSIX", "C.UTF-8");
102 	do_locale_switch("C.UTF-8", "C");
103 	do_locale_switch("C.UTF-8", "POSIX");
104 }
105 
106 ATF_TP_ADD_TCS(tp)
107 {
108 	ATF_TP_ADD_TC(tp, newlocale_c_posix_cu8_test);
109 
110 	return (atf_no_error());
111 }
112