1 /* Test of conversion of multibyte character to wide character.
2 Copyright (C) 2008-2023 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation, either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 /* Written by Bruno Haible <bruno@clisp.org>, 2008. */
18
19 #include <config.h>
20
21 #include <wchar.h>
22
23 #include "signature.h"
24 SIGNATURE_CHECK (mbrtowc, size_t, (wchar_t *, char const *, size_t,
25 mbstate_t *));
26
27 #include <locale.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31
32 #include "macros.h"
33
34 int
35 main (int argc, char *argv[])
36 {
37 mbstate_t state;
38 wchar_t wc;
39 size_t ret;
40
41 /* configure should already have checked that the locale is supported. */
42 if (setlocale (LC_ALL, "") == NULL)
43 return 1;
44
45 /* Test zero-length input. */
46 {
47 memset (&state, '\0', sizeof (mbstate_t));
48 wc = (wchar_t) 0xBADFACE;
49 ret = mbrtowc (&wc, "x", 0, &state);
50 ASSERT (ret == (size_t)(-2));
51 ASSERT (mbsinit (&state));
52 }
53
54 /* Test NUL byte input. */
55 {
56 memset (&state, '\0', sizeof (mbstate_t));
57 wc = (wchar_t) 0xBADFACE;
58 ret = mbrtowc (&wc, "", 1, &state);
59 ASSERT (ret == 0);
60 ASSERT (wc == 0);
61 ASSERT (mbsinit (&state));
62 ret = mbrtowc (NULL, "", 1, &state);
63 ASSERT (ret == 0);
64 ASSERT (mbsinit (&state));
65 }
66
67 /* Test single-byte input. */
68 {
69 int c;
70 char buf[1];
71
72 memset (&state, '\0', sizeof (mbstate_t));
73 for (c = 0; c < 0x100; c++)
74 switch (c)
75 {
76 case '\t': case '\v': case '\f':
77 case ' ': case '!': case '"': case '#': case '%':
78 case '&': case '\'': case '(': case ')': case '*':
79 case '+': case ',': case '-': case '.': case '/':
80 case '0': case '1': case '2': case '3': case '4':
81 case '5': case '6': case '7': case '8': case '9':
82 case ':': case ';': case '<': case '=': case '>':
83 case '?':
84 case 'A': case 'B': case 'C': case 'D': case 'E':
85 case 'F': case 'G': case 'H': case 'I': case 'J':
86 case 'K': case 'L': case 'M': case 'N': case 'O':
87 case 'P': case 'Q': case 'R': case 'S': case 'T':
88 case 'U': case 'V': case 'W': case 'X': case 'Y':
89 case 'Z':
90 case '[': case '\\': case ']': case '^': case '_':
91 case 'a': case 'b': case 'c': case 'd': case 'e':
92 case 'f': case 'g': case 'h': case 'i': case 'j':
93 case 'k': case 'l': case 'm': case 'n': case 'o':
94 case 'p': case 'q': case 'r': case 's': case 't':
95 case 'u': case 'v': case 'w': case 'x': case 'y':
96 case 'z': case '{': case '|': case '}': case '~':
97 /* c is in the ISO C "basic character set". */
98 ASSERT (c < 0x80);
99 /* c is an ASCII character. */
100 buf[0] = c;
101
102 wc = (wchar_t) 0xBADFACE;
103 ret = mbrtowc (&wc, buf, 1, &state);
104 ASSERT (ret == 1);
105 ASSERT (wc == c);
106 ASSERT (mbsinit (&state));
107
108 ret = mbrtowc (NULL, buf, 1, &state);
109 ASSERT (ret == 1);
110 ASSERT (mbsinit (&state));
111
112 break;
113 default:
114 break;
115 }
116 }
117
118 /* Test special calling convention, passing a NULL pointer. */
119 {
120 memset (&state, '\0', sizeof (mbstate_t));
121 wc = (wchar_t) 0xBADFACE;
122 ret = mbrtowc (&wc, NULL, 5, &state);
123 ASSERT (ret == 0);
124 ASSERT (wc == (wchar_t) 0xBADFACE);
125 ASSERT (mbsinit (&state));
126 }
127
128 #ifdef __ANDROID__
129 /* On Android ≥ 5.0, the default locale is the "C.UTF-8" locale, not the
130 "C" locale. Furthermore, when you attempt to set the "C" or "POSIX"
131 locale via setlocale(), what you get is a "C" locale with UTF-8 encoding,
132 that is, effectively the "C.UTF-8" locale. */
133 if (argc > 1 && strcmp (argv[1], "5") == 0 && MB_CUR_MAX > 1)
134 argv[1] = "2";
135 #endif
136
137 if (argc > 1)
138 switch (argv[1][0])
139 {
140 case '1':
141 /* Locale encoding is ISO-8859-1 or ISO-8859-15. */
142 {
143 char input[] = "B\374\337er"; /* "Büßer" */
144 memset (&state, '\0', sizeof (mbstate_t));
145
146 wc = (wchar_t) 0xBADFACE;
147 ret = mbrtowc (&wc, input, 1, &state);
148 ASSERT (ret == 1);
149 ASSERT (wc == 'B');
150 ASSERT (mbsinit (&state));
151 input[0] = '\0';
152
153 wc = (wchar_t) 0xBADFACE;
154 ret = mbrtowc (&wc, input + 1, 1, &state);
155 ASSERT (ret == 1);
156 ASSERT (wctob (wc) == (unsigned char) '\374');
157 ASSERT (mbsinit (&state));
158 input[1] = '\0';
159
160 /* Test support of NULL first argument. */
161 ret = mbrtowc (NULL, input + 2, 3, &state);
162 ASSERT (ret == 1);
163 ASSERT (mbsinit (&state));
164
165 wc = (wchar_t) 0xBADFACE;
166 ret = mbrtowc (&wc, input + 2, 3, &state);
167 ASSERT (ret == 1);
168 ASSERT (wctob (wc) == (unsigned char) '\337');
169 ASSERT (mbsinit (&state));
170 input[2] = '\0';
171
172 wc = (wchar_t) 0xBADFACE;
173 ret = mbrtowc (&wc, input + 3, 2, &state);
174 ASSERT (ret == 1);
175 ASSERT (wc == 'e');
176 ASSERT (mbsinit (&state));
177 input[3] = '\0';
178
179 wc = (wchar_t) 0xBADFACE;
180 ret = mbrtowc (&wc, input + 4, 1, &state);
181 ASSERT (ret == 1);
182 ASSERT (wc == 'r');
183 ASSERT (mbsinit (&state));
184 }
185 return 0;
186
187 case '2':
188 /* Locale encoding is UTF-8. */
189 {
190 char input[] = "B\303\274\303\237er"; /* "Büßer" */
191 memset (&state, '\0', sizeof (mbstate_t));
192
193 wc = (wchar_t) 0xBADFACE;
194 ret = mbrtowc (&wc, input, 1, &state);
195 ASSERT (ret == 1);
196 ASSERT (wc == 'B');
197 ASSERT (mbsinit (&state));
198 input[0] = '\0';
199
200 wc = (wchar_t) 0xBADFACE;
201 ret = mbrtowc (&wc, input + 1, 1, &state);
202 ASSERT (ret == (size_t)(-2));
203 ASSERT (wc == (wchar_t) 0xBADFACE);
204 ASSERT (!mbsinit (&state));
205 input[1] = '\0';
206
207 wc = (wchar_t) 0xBADFACE;
208 ret = mbrtowc (&wc, input + 2, 5, &state);
209 ASSERT (ret == 1);
210 ASSERT (wctob (wc) == EOF);
211 ASSERT (mbsinit (&state));
212 input[2] = '\0';
213
214 /* Test support of NULL first argument. */
215 ret = mbrtowc (NULL, input + 3, 4, &state);
216 ASSERT (ret == 2);
217 ASSERT (mbsinit (&state));
218
219 wc = (wchar_t) 0xBADFACE;
220 ret = mbrtowc (&wc, input + 3, 4, &state);
221 ASSERT (ret == 2);
222 ASSERT (wctob (wc) == EOF);
223 ASSERT (mbsinit (&state));
224 input[3] = '\0';
225 input[4] = '\0';
226
227 wc = (wchar_t) 0xBADFACE;
228 ret = mbrtowc (&wc, input + 5, 2, &state);
229 ASSERT (ret == 1);
230 ASSERT (wc == 'e');
231 ASSERT (mbsinit (&state));
232 input[5] = '\0';
233
234 wc = (wchar_t) 0xBADFACE;
235 ret = mbrtowc (&wc, input + 6, 1, &state);
236 ASSERT (ret == 1);
237 ASSERT (wc == 'r');
238 ASSERT (mbsinit (&state));
239 }
240 return 0;
241
242 case '3':
243 /* Locale encoding is EUC-JP. */
244 {
245 char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
246 memset (&state, '\0', sizeof (mbstate_t));
247
248 wc = (wchar_t) 0xBADFACE;
249 ret = mbrtowc (&wc, input, 1, &state);
250 ASSERT (ret == 1);
251 ASSERT (wc == '<');
252 ASSERT (mbsinit (&state));
253 input[0] = '\0';
254
255 wc = (wchar_t) 0xBADFACE;
256 ret = mbrtowc (&wc, input + 1, 2, &state);
257 ASSERT (ret == 2);
258 ASSERT (wctob (wc) == EOF);
259 ASSERT (mbsinit (&state));
260 input[1] = '\0';
261 input[2] = '\0';
262
263 wc = (wchar_t) 0xBADFACE;
264 ret = mbrtowc (&wc, input + 3, 1, &state);
265 ASSERT (ret == (size_t)(-2));
266 ASSERT (wc == (wchar_t) 0xBADFACE);
267 ASSERT (!mbsinit (&state));
268 input[3] = '\0';
269
270 wc = (wchar_t) 0xBADFACE;
271 ret = mbrtowc (&wc, input + 4, 4, &state);
272 ASSERT (ret == 1);
273 ASSERT (wctob (wc) == EOF);
274 ASSERT (mbsinit (&state));
275 input[4] = '\0';
276
277 /* Test support of NULL first argument. */
278 ret = mbrtowc (NULL, input + 5, 3, &state);
279 ASSERT (ret == 2);
280 ASSERT (mbsinit (&state));
281
282 wc = (wchar_t) 0xBADFACE;
283 ret = mbrtowc (&wc, input + 5, 3, &state);
284 ASSERT (ret == 2);
285 ASSERT (wctob (wc) == EOF);
286 ASSERT (mbsinit (&state));
287 input[5] = '\0';
288 input[6] = '\0';
289
290 wc = (wchar_t) 0xBADFACE;
291 ret = mbrtowc (&wc, input + 7, 1, &state);
292 ASSERT (ret == 1);
293 ASSERT (wc == '>');
294 ASSERT (mbsinit (&state));
295 }
296 return 0;
297
298 case '4':
299 /* Locale encoding is GB18030. */
300 {
301 char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
302 memset (&state, '\0', sizeof (mbstate_t));
303
304 wc = (wchar_t) 0xBADFACE;
305 ret = mbrtowc (&wc, input, 1, &state);
306 ASSERT (ret == 1);
307 ASSERT (wc == 'B');
308 ASSERT (mbsinit (&state));
309 input[0] = '\0';
310
311 wc = (wchar_t) 0xBADFACE;
312 ret = mbrtowc (&wc, input + 1, 1, &state);
313 ASSERT (ret == (size_t)(-2));
314 ASSERT (wc == (wchar_t) 0xBADFACE);
315 ASSERT (!mbsinit (&state));
316 input[1] = '\0';
317
318 wc = (wchar_t) 0xBADFACE;
319 ret = mbrtowc (&wc, input + 2, 7, &state);
320 ASSERT (ret == 1);
321 ASSERT (wctob (wc) == EOF);
322 ASSERT (mbsinit (&state));
323 input[2] = '\0';
324
325 /* Test support of NULL first argument. */
326 ret = mbrtowc (NULL, input + 3, 6, &state);
327 ASSERT (ret == 4);
328 ASSERT (mbsinit (&state));
329
330 wc = (wchar_t) 0xBADFACE;
331 ret = mbrtowc (&wc, input + 3, 6, &state);
332 ASSERT (ret == 4);
333 ASSERT (wctob (wc) == EOF);
334 ASSERT (mbsinit (&state));
335 input[3] = '\0';
336 input[4] = '\0';
337 input[5] = '\0';
338 input[6] = '\0';
339
340 wc = (wchar_t) 0xBADFACE;
341 ret = mbrtowc (&wc, input + 7, 2, &state);
342 ASSERT (ret == 1);
343 ASSERT (wc == 'e');
344 ASSERT (mbsinit (&state));
345 input[7] = '\0';
346
347 wc = (wchar_t) 0xBADFACE;
348 ret = mbrtowc (&wc, input + 8, 1, &state);
349 ASSERT (ret == 1);
350 ASSERT (wc == 'r');
351 ASSERT (mbsinit (&state));
352 }
353 return 0;
354
355 case '5':
356 /* C or POSIX locale. */
357 {
358 int c;
359 char buf[1];
360
361 memset (&state, '\0', sizeof (mbstate_t));
362 for (c = 0; c < 0x100; c++)
363 if (c != 0)
364 {
365 /* We are testing all nonnull bytes. */
366 buf[0] = c;
367
368 wc = (wchar_t) 0xBADFACE;
369 ret = mbrtowc (&wc, buf, 1, &state);
370 /* POSIX:2018 says: "In the POSIX locale an [EILSEQ] error
371 cannot occur since all byte values are valid characters." */
372 ASSERT (ret == 1);
373 if (c < 0x80)
374 /* c is an ASCII character. */
375 ASSERT (wc == c);
376 else
377 /* On most platforms, the bytes 0x80..0xFF map to U+0080..U+00FF.
378 But on musl libc, the bytes 0x80..0xFF map to U+DF80..U+DFFF. */
379 ASSERT (wc == (btowc (c) == 0xDF00 + c ? btowc (c) : c));
380 ASSERT (mbsinit (&state));
381
382 ret = mbrtowc (NULL, buf, 1, &state);
383 ASSERT (ret == 1);
384 ASSERT (mbsinit (&state));
385 }
386 }
387 return 0;
388 }
389
390 return 1;
391 }