summaryrefslogtreecommitdiffstats
path: root/gnulib-tests/test-mbsrtoc32s.c
blob: d0157c69fd01a11de3d735960219bf7dd26718d9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
/* Test of conversion of string to 32-bit wide string.
   Copyright (C) 2008-2023 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */

#include <config.h>

#include <uchar.h>

#include "signature.h"
SIGNATURE_CHECK (mbsrtoc32s, size_t,
                 (char32_t *, const char **, size_t, mbstate_t *));

#include <locale.h>
#include <stdio.h>
#include <string.h>
#include <wchar.h>

#include "macros.h"

int
main (int argc, char *argv[])
{
  mbstate_t state;
  char32_t wc;
  size_t ret;

  /* configure should already have checked that the locale is supported.  */
  if (setlocale (LC_ALL, "") == NULL)
    return 1;

  /* Test NUL byte input.  */
  {
    const char *src;

    memset (&state, '\0', sizeof (mbstate_t));

    src = "";
    ret = mbsrtoc32s (NULL, &src, 0, &state);
    ASSERT (ret == 0);
    ASSERT (mbsinit (&state));

    src = "";
    ret = mbsrtoc32s (NULL, &src, 1, &state);
    ASSERT (ret == 0);
    ASSERT (mbsinit (&state));

    wc = (char32_t) 0xBADFACE;
    src = "";
    ret = mbsrtoc32s (&wc, &src, 0, &state);
    ASSERT (ret == 0);
    ASSERT (wc == (char32_t) 0xBADFACE);
    ASSERT (mbsinit (&state));

    wc = (char32_t) 0xBADFACE;
    src = "";
    ret = mbsrtoc32s (&wc, &src, 1, &state);
    ASSERT (ret == 0);
    ASSERT (wc == 0);
    ASSERT (mbsinit (&state));
  }

#ifdef __ANDROID__
  /* On Android ≥ 5.0, the default locale is the "C.UTF-8" locale, not the
     "C" locale.  Furthermore, when you attempt to set the "C" or "POSIX"
     locale via setlocale(), what you get is a "C" locale with UTF-8 encoding,
     that is, effectively the "C.UTF-8" locale.  */
  if (argc > 1 && strcmp (argv[1], "1") == 0 && MB_CUR_MAX > 1)
    argv[1] = "3";
#endif

  if (argc > 1)
    {
      int unlimited;

      for (unlimited = 0; unlimited < 2; unlimited++)
        {
          #define BUFSIZE 10
          char32_t buf[BUFSIZE];
          const char *src;
          mbstate_t temp_state;

          {
            size_t i;
            for (i = 0; i < BUFSIZE; i++)
              buf[i] = (char32_t) 0xBADFACE;
          }

          switch (argv[1][0])
            {
            case '1':
              /* C or POSIX locale.  */
              {
                char input[] = "n/a";
                memset (&state, '\0', sizeof (mbstate_t));

                src = input;
                temp_state = state;
                ret = mbsrtoc32s (NULL, &src, unlimited ? BUFSIZE : 1, &temp_state);
                ASSERT (ret == 3);
                ASSERT (src == input);
                ASSERT (mbsinit (&state));

                src = input;
                ret = mbsrtoc32s (buf, &src, unlimited ? BUFSIZE : 1, &state);
                ASSERT (ret == (unlimited ? 3 : 1));
                ASSERT (src == (unlimited ? NULL : input + 1));
                ASSERT (buf[0] == 'n');
                if (unlimited)
                  {
                    ASSERT (buf[1] == '/');
                    ASSERT (buf[2] == 'a');
                    ASSERT (buf[3] == 0);
                    ASSERT (buf[4] == (char32_t) 0xBADFACE);
                  }
                else
                  ASSERT (buf[1] == (char32_t) 0xBADFACE);
                ASSERT (mbsinit (&state));
              }
              {
                int c;
                char input[2];

                memset (&state, '\0', sizeof (mbstate_t));
                for (c = 0; c < 0x100; c++)
                  if (c != 0)
                    {
                      /* We are testing all nonnull bytes.  */
                      input[0] = c;
                      input[1] = '\0';

                      src = input;
                      ret = mbsrtoc32s (NULL, &src, unlimited ? BUFSIZE : 1, &state);
                      ASSERT (ret == 1);
                      ASSERT (src == input);
                      ASSERT (mbsinit (&state));

                      buf[0] = buf[1] = (char32_t) 0xBADFACE;
                      src = input;
                      ret = mbsrtoc32s (buf, &src, unlimited ? BUFSIZE : 1, &state);
                      /* POSIX:2018 says regarding mbsrtowcs: "In the POSIX locale an
                         [EILSEQ] error cannot occur since all byte values are valid
                         characters."  It is reasonable to expect mbsrtoc32s to behave
                         in the same way.  */
                      ASSERT (ret == 1);
                      ASSERT (src == (unlimited ? NULL : input + 1));
                      if (c < 0x80)
                        /* c is an ASCII character.  */
                        ASSERT (buf[0] == c);
                      else
                        /* On most platforms, the bytes 0x80..0xFF map to U+0080..U+00FF.
                           But on musl libc, the bytes 0x80..0xFF map to U+DF80..U+DFFF.  */
                        ASSERT (buf[0] == (btoc32 (c) == 0xDF00 + c ? btoc32 (c) : c));
                      ASSERT (mbsinit (&state));
                    }
              }
              break;

            case '2':
              /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
              {
                char input[] = "B\374\337er"; /* "Büßer" */
                memset (&state, '\0', sizeof (mbstate_t));

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input, 1, &state);
                ASSERT (ret == 1);
                ASSERT (wc == 'B');
                ASSERT (mbsinit (&state));
                input[0] = '\0';

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input + 1, 1, &state);
                ASSERT (ret == 1);
                ASSERT (c32tob (wc) == (unsigned char) '\374');
                ASSERT (mbsinit (&state));
                input[1] = '\0';

                src = input + 2;
                temp_state = state;
                ret = mbsrtoc32s (NULL, &src, unlimited ? BUFSIZE : 1, &temp_state);
                ASSERT (ret == 3);
                ASSERT (src == input + 2);
                ASSERT (mbsinit (&state));

                src = input + 2;
                ret = mbsrtoc32s (buf, &src, unlimited ? BUFSIZE : 1, &state);
                ASSERT (ret == (unlimited ? 3 : 1));
                ASSERT (src == (unlimited ? NULL : input + 3));
                ASSERT (c32tob (buf[0]) == (unsigned char) '\337');
                if (unlimited)
                  {
                    ASSERT (buf[1] == 'e');
                    ASSERT (buf[2] == 'r');
                    ASSERT (buf[3] == 0);
                    ASSERT (buf[4] == (char32_t) 0xBADFACE);
                  }
                else
                  ASSERT (buf[1] == (char32_t) 0xBADFACE);
                ASSERT (mbsinit (&state));
              }
              break;

            case '3':
              /* Locale encoding is UTF-8.  */
              {
                char input[] = "s\303\274\303\237\360\237\230\213!"; /* "süß😋!" */
                memset (&state, '\0', sizeof (mbstate_t));

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input, 1, &state);
                ASSERT (ret == 1);
                ASSERT (wc == 's');
                ASSERT (mbsinit (&state));
                input[0] = '\0';

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input + 1, 1, &state);
                ASSERT (ret == (size_t)(-2));
                ASSERT (wc == (char32_t) 0xBADFACE);
                ASSERT (!mbsinit (&state));
                input[1] = '\0';

                src = input + 2;
                temp_state = state;
                ret = mbsrtoc32s (NULL, &src, unlimited ? BUFSIZE : 2, &temp_state);
                ASSERT (ret == 4);
                ASSERT (src == input + 2);
                ASSERT (!mbsinit (&state));

                src = input + 2;
                ret = mbsrtoc32s (buf, &src, unlimited ? BUFSIZE : 2, &state);
                ASSERT (ret == (unlimited ? 4 : 2));
                ASSERT (src == (unlimited ? NULL : input + 5));
                ASSERT (c32tob (buf[0]) == EOF);
                ASSERT (c32tob (buf[1]) == EOF);
                if (unlimited)
                  {
                    ASSERT (buf[2] == 0x1F60B); /* expect Unicode encoding */
                    ASSERT (buf[3] == '!');
                    ASSERT (buf[4] == 0);
                    ASSERT (buf[5] == (char32_t) 0xBADFACE);
                  }
                else
                  ASSERT (buf[2] == (char32_t) 0xBADFACE);
                ASSERT (mbsinit (&state));
              }
              break;

            case '4':
              /* Locale encoding is EUC-JP.  */
              {
                char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
                memset (&state, '\0', sizeof (mbstate_t));

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input, 1, &state);
                ASSERT (ret == 1);
                ASSERT (wc == '<');
                ASSERT (mbsinit (&state));
                input[0] = '\0';

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input + 1, 2, &state);
                ASSERT (ret == 2);
                ASSERT (c32tob (wc) == EOF);
                ASSERT (mbsinit (&state));
                input[1] = '\0';
                input[2] = '\0';

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input + 3, 1, &state);
                ASSERT (ret == (size_t)(-2));
                ASSERT (wc == (char32_t) 0xBADFACE);
                ASSERT (!mbsinit (&state));
                input[3] = '\0';

                src = input + 4;
                temp_state = state;
                ret = mbsrtoc32s (NULL, &src, unlimited ? BUFSIZE : 2, &temp_state);
                ASSERT (ret == 3);
                ASSERT (src == input + 4);
                ASSERT (!mbsinit (&state));

                src = input + 4;
                ret = mbsrtoc32s (buf, &src, unlimited ? BUFSIZE : 2, &state);
                ASSERT (ret == (unlimited ? 3 : 2));
                ASSERT (src == (unlimited ? NULL : input + 7));
                ASSERT (c32tob (buf[0]) == EOF);
                ASSERT (c32tob (buf[1]) == EOF);
                if (unlimited)
                  {
                    ASSERT (buf[2] == '>');
                    ASSERT (buf[3] == 0);
                    ASSERT (buf[4] == (char32_t) 0xBADFACE);
                  }
                else
                  ASSERT (buf[2] == (char32_t) 0xBADFACE);
                ASSERT (mbsinit (&state));
              }
              break;

            case '5':
              /* Locale encoding is GB18030.  */
              #if (defined __GLIBC__ && __GLIBC__ == 2 && __GLIBC_MINOR__ >= 13 && __GLIBC_MINOR__ <= 15) || (GL_CHAR32_T_IS_UNICODE && (defined __NetBSD__ || defined __sun))
              fputs ("Skipping test: The GB18030 converter in this system's iconv is broken.\n", stderr);
              return 77;
              #endif
              {
                char input[] = "s\250\271\201\060\211\070\224\071\375\067!"; /* "süß😋!" */
                memset (&state, '\0', sizeof (mbstate_t));

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input, 1, &state);
                ASSERT (ret == 1);
                ASSERT (wc == 's');
                ASSERT (mbsinit (&state));
                input[0] = '\0';

                wc = (char32_t) 0xBADFACE;
                ret = mbrtoc32 (&wc, input + 1, 1, &state);
                ASSERT (ret == (size_t)(-2));
                ASSERT (wc == (char32_t) 0xBADFACE);
                ASSERT (!mbsinit (&state));
                input[1] = '\0';

                src = input + 2;
                temp_state = state;
                ret = mbsrtoc32s (NULL, &src, unlimited ? BUFSIZE : 2, &temp_state);
                ASSERT (ret == 4);
                ASSERT (src == input + 2);
                ASSERT (!mbsinit (&state));

                src = input + 2;
                ret = mbsrtoc32s (buf, &src, unlimited ? BUFSIZE : 2, &state);
                ASSERT (ret == (unlimited ? 4 : 2));
                ASSERT (src == (unlimited ? NULL : input + 7));
                ASSERT (c32tob (buf[0]) == EOF);
                ASSERT (c32tob (buf[1]) == EOF);
                if (unlimited)
                  {
                    ASSERT (c32tob (buf[2]) == EOF);
                    ASSERT (buf[3] == '!');
                    ASSERT (buf[4] == 0);
                    ASSERT (buf[5] == (char32_t) 0xBADFACE);
                  }
                else
                  ASSERT (buf[2] == (char32_t) 0xBADFACE);
                ASSERT (mbsinit (&state));
              }
              break;

            default:
              return 1;
            }
        }

      return 0;
    }

  return 1;
}