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4e8f95a0 | 1 | /* Regression test for setlocale invalid environment variable handling. |
04277e02 | 2 | Copyright (C) 2014-2019 Free Software Foundation, Inc. |
4e8f95a0 FW |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
4e8f95a0 FW |
18 | |
19 | #include <locale.h> | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | ||
24 | /* The result of setlocale may be overwritten by subsequent calls, so | |
25 | this wrapper makes a copy. */ | |
26 | static char * | |
27 | setlocale_copy (int category, const char *locale) | |
28 | { | |
29 | const char *result = setlocale (category, locale); | |
30 | if (result == NULL) | |
31 | return NULL; | |
32 | return strdup (result); | |
33 | } | |
34 | ||
35 | static char *de_locale; | |
36 | ||
37 | static void | |
38 | setlocale_fail (const char *envstring) | |
39 | { | |
40 | setenv ("LC_CTYPE", envstring, 1); | |
41 | if (setlocale (LC_CTYPE, "") != NULL) | |
42 | { | |
43 | printf ("unexpected setlocale success for \"%s\" locale\n", envstring); | |
44 | exit (1); | |
45 | } | |
46 | const char *newloc = setlocale (LC_CTYPE, NULL); | |
47 | if (strcmp (newloc, de_locale) != 0) | |
48 | { | |
49 | printf ("failed setlocale call \"%s\" changed locale to \"%s\"\n", | |
50 | envstring, newloc); | |
51 | exit (1); | |
52 | } | |
53 | } | |
54 | ||
55 | static void | |
56 | setlocale_success (const char *envstring) | |
57 | { | |
58 | setenv ("LC_CTYPE", envstring, 1); | |
59 | char *newloc = setlocale_copy (LC_CTYPE, ""); | |
60 | if (newloc == NULL) | |
61 | { | |
62 | printf ("setlocale for \"%s\": %m\n", envstring); | |
63 | exit (1); | |
64 | } | |
65 | if (strcmp (newloc, de_locale) == 0) | |
66 | { | |
67 | printf ("setlocale with LC_CTYPE=\"%s\" left locale at \"%s\"\n", | |
68 | envstring, de_locale); | |
69 | exit (1); | |
70 | } | |
71 | if (setlocale (LC_CTYPE, de_locale) == NULL) | |
72 | { | |
73 | printf ("restoring locale \"%s\" with LC_CTYPE=\"%s\": %m\n", | |
74 | de_locale, envstring); | |
75 | exit (1); | |
76 | } | |
77 | char *newloc2 = setlocale_copy (LC_CTYPE, newloc); | |
78 | if (newloc2 == NULL) | |
79 | { | |
80 | printf ("restoring locale \"%s\" following \"%s\": %m\n", | |
81 | newloc, envstring); | |
82 | exit (1); | |
83 | } | |
84 | if (strcmp (newloc, newloc2) != 0) | |
85 | { | |
86 | printf ("representation of locale \"%s\" changed from \"%s\" to \"%s\"", | |
87 | envstring, newloc, newloc2); | |
88 | exit (1); | |
89 | } | |
90 | free (newloc); | |
91 | free (newloc2); | |
92 | ||
93 | if (setlocale (LC_CTYPE, de_locale) == NULL) | |
94 | { | |
95 | printf ("restoring locale \"%s\" with LC_CTYPE=\"%s\": %m\n", | |
96 | de_locale, envstring); | |
97 | exit (1); | |
98 | } | |
99 | } | |
100 | ||
101 | /* Checks that a known-good locale still works if LC_ALL contains a | |
102 | value which should be ignored. */ | |
103 | static void | |
104 | setlocale_ignore (const char *to_ignore) | |
105 | { | |
106 | const char *fr_locale = "fr_FR.UTF-8"; | |
107 | setenv ("LC_CTYPE", fr_locale, 1); | |
108 | char *expected_locale = setlocale_copy (LC_CTYPE, ""); | |
109 | if (expected_locale == NULL) | |
110 | { | |
111 | printf ("setlocale with LC_CTYPE=\"%s\" failed: %m\n", fr_locale); | |
112 | exit (1); | |
113 | } | |
114 | if (setlocale (LC_CTYPE, de_locale) == NULL) | |
115 | { | |
116 | printf ("failed to restore locale: %m\n"); | |
117 | exit (1); | |
118 | } | |
119 | unsetenv ("LC_CTYPE"); | |
120 | ||
121 | setenv ("LC_ALL", to_ignore, 1); | |
122 | setenv ("LC_CTYPE", fr_locale, 1); | |
123 | const char *actual_locale = setlocale (LC_CTYPE, ""); | |
124 | if (actual_locale == NULL) | |
125 | { | |
126 | printf ("setlocale with LC_ALL, LC_CTYPE=\"%s\" failed: %m\n", | |
127 | fr_locale); | |
128 | exit (1); | |
129 | } | |
130 | if (strcmp (actual_locale, expected_locale) != 0) | |
131 | { | |
132 | printf ("setlocale under LC_ALL failed: got \"%s\", expected \"%s\"\n", | |
133 | actual_locale, expected_locale); | |
134 | exit (1); | |
135 | } | |
136 | unsetenv ("LC_CTYPE"); | |
137 | setlocale_success (fr_locale); | |
138 | unsetenv ("LC_ALL"); | |
139 | free (expected_locale); | |
140 | } | |
141 | ||
142 | static int | |
143 | do_test (void) | |
144 | { | |
145 | /* The glibc test harness sets this environment variable | |
146 | uncondionally. */ | |
147 | unsetenv ("LC_ALL"); | |
148 | ||
149 | de_locale = setlocale_copy (LC_CTYPE, "de_DE.UTF-8"); | |
150 | if (de_locale == NULL) | |
151 | { | |
152 | printf ("setlocale (LC_CTYPE, \"de_DE.UTF-8\"): %m\n"); | |
153 | return 1; | |
154 | } | |
155 | setlocale_success ("C"); | |
156 | setlocale_success ("en_US.UTF-8"); | |
157 | setlocale_success ("/en_US.UTF-8"); | |
158 | setlocale_success ("//en_US.UTF-8"); | |
159 | setlocale_ignore (""); | |
160 | ||
161 | setlocale_fail ("does-not-exist"); | |
162 | setlocale_fail ("/"); | |
163 | setlocale_fail ("/../localedata/en_US.UTF-8"); | |
164 | setlocale_fail ("en_US.UTF-8/"); | |
165 | setlocale_fail ("en_US.UTF-8/.."); | |
166 | setlocale_fail ("en_US.UTF-8/../en_US.UTF-8"); | |
167 | setlocale_fail ("../localedata/en_US.UTF-8"); | |
168 | { | |
169 | size_t large_length = 1024; | |
170 | char *large_name = malloc (large_length + 1); | |
171 | if (large_name == NULL) | |
172 | { | |
173 | puts ("malloc failure"); | |
174 | return 1; | |
175 | } | |
176 | memset (large_name, '/', large_length); | |
177 | const char *suffix = "en_US.UTF-8"; | |
178 | strcpy (large_name + large_length - strlen (suffix), suffix); | |
179 | setlocale_fail (large_name); | |
180 | free (large_name); | |
181 | } | |
182 | { | |
183 | size_t huge_length = 64 * 1024 * 1024; | |
184 | char *huge_name = malloc (huge_length + 1); | |
185 | if (huge_name == NULL) | |
186 | { | |
187 | puts ("malloc failure"); | |
188 | return 1; | |
189 | } | |
190 | memset (huge_name, 'X', huge_length); | |
191 | huge_name[huge_length] = '\0'; | |
192 | /* Construct a composite locale specification. */ | |
193 | const char *prefix = "LC_CTYPE=de_DE.UTF-8;LC_TIME="; | |
194 | memcpy (huge_name, prefix, strlen (prefix)); | |
195 | setlocale_fail (huge_name); | |
196 | free (huge_name); | |
197 | } | |
198 | ||
199 | return 0; | |
200 | } | |
201 | ||
202 | #define TEST_FUNCTION do_test () | |
203 | #include "../test-skeleton.c" |