1/*-
2 * Copyright (c) 2002 Tim J. Robbins
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * Test program for mbrtowc(), as specified by IEEE Std. 1003.1-2001 and
29 * ISO/IEC 9899:1999.
30 *
31 * The function is tested with both the "C" ("POSIX") LC_CTYPE setting and
32 * "ja_JP.eucJP". Other encodings are not tested.
33 */
34
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD$");
37
38#include <assert.h>
39#include <errno.h>
40#include <limits.h>
41#include <locale.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45#include <wchar.h>
46
47int
48main(int argc, char *argv[])
49{
50	mbstate_t s;
51	size_t len;
52	wchar_t wc;
53	char buf[MB_LEN_MAX + 1];
54
55	/*
56	 * C/POSIX locale.
57	 */
58
59	printf("1..1\n");
60
61	assert(MB_CUR_MAX == 1);
62
63	/* Null wide character, internal state. */
64	memset(buf, 0xcc, sizeof(buf));
65	buf[0] = 0;
66	assert(mbrtowc(&wc, buf, 1, NULL) == 0);
67	assert(wc == 0);
68
69	/* Null wide character. */
70	memset(&s, 0, sizeof(s));
71	assert(mbrtowc(&wc, buf, 1, &s) == 0);
72	assert(wc == 0);
73
74	/* Latin letter A, internal state. */
75	assert(mbrtowc(NULL, 0, 0, NULL) == 0);
76	buf[0] = 'A';
77	assert(mbrtowc(&wc, buf, 1, NULL) == 1);
78	assert(wc == L'A');
79
80	/* Latin letter A. */
81	memset(&s, 0, sizeof(s));
82	assert(mbrtowc(&wc, buf, 1, &s) == 1);
83	assert(wc == L'A');
84
85	/* Incomplete character sequence. */
86	wc = L'z';
87	memset(&s, 0, sizeof(s));
88	assert(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
89	assert(wc == L'z');
90
91	/* Check that mbrtowc() doesn't access the buffer when n == 0. */
92	wc = L'z';
93	memset(&s, 0, sizeof(s));
94	buf[0] = '\0';
95	assert(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
96	assert(wc == L'z');
97
98	/*
99	 * Japanese (EUC) locale.
100	 */
101
102	assert(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
103	assert(MB_CUR_MAX > 1);
104
105	/* Null wide character, internal state. */
106	assert(mbrtowc(NULL, 0, 0, NULL) == 0);
107	memset(buf, 0xcc, sizeof(buf));
108	buf[0] = 0;
109	assert(mbrtowc(&wc, buf, 1, NULL) == 0);
110	assert(wc == 0);
111
112	/* Null wide character. */
113	memset(&s, 0, sizeof(s));
114	assert(mbrtowc(&wc, buf, 1, &s) == 0);
115	assert(wc == 0);
116
117	/* Latin letter A, internal state. */
118	assert(mbrtowc(NULL, 0, 0, NULL) == 0);
119	buf[0] = 'A';
120	assert(mbrtowc(&wc, buf, 1, NULL) == 1);
121	assert(wc == L'A');
122
123	/* Latin letter A. */
124	memset(&s, 0, sizeof(s));
125	assert(mbrtowc(&wc, buf, 1, &s) == 1);
126	assert(wc == L'A');
127
128	/* Incomplete character sequence (zero length). */
129	wc = L'z';
130	memset(&s, 0, sizeof(s));
131	assert(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
132	assert(wc == L'z');
133
134	/* Incomplete character sequence (truncated double-byte). */
135	memset(buf, 0xcc, sizeof(buf));
136	buf[0] = 0xa3;
137	buf[1] = 0x00;
138	memset(&s, 0, sizeof(s));
139	wc = 0;
140	assert(mbrtowc(&wc, buf, 1, &s) == (size_t)-2);
141
142	/* Same as above, but complete. */
143	buf[1] = 0xc1;
144	memset(&s, 0, sizeof(s));
145	wc = 0;
146	assert(mbrtowc(&wc, buf, 2, &s) == 2);
147	assert(wc == 0xa3c1);
148
149	/* Test restarting behaviour. */
150	memset(buf, 0xcc, sizeof(buf));
151	buf[0] = 0xa3;
152	memset(&s, 0, sizeof(s));
153	wc = 0;
154	assert(mbrtowc(&wc, buf, 1, &s) == (size_t)-2);
155	assert(wc == 0);
156	buf[0] = 0xc1;
157	assert(mbrtowc(&wc, buf, 1, &s) == 1);
158	assert(wc == 0xa3c1);
159
160	printf("ok 1 - mbrtowc()\n");
161
162	return (0);
163}
164