mbrtowc_test.c revision 291178 
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: stable/10/lib/libc/tests/locale/mbrtowc_test.c 291178 2015-11-23 08:31:41Z ngie $");
37
38#include <errno.h>
39#include <limits.h>
40#include <locale.h>
41#include <stdio.h>
42#include <stdlib.h>
43#include <string.h>
44#include <wchar.h>
45
46#include <atf-c.h>
47
48ATF_TC_WITHOUT_HEAD(mbrtowc_test);
49ATF_TC_BODY(mbrtowc_test, tc)
50{
51	mbstate_t s;
52	wchar_t wc;
53	char buf[MB_LEN_MAX + 1];
54
55	/*
56	 * C/POSIX locale.
57	 */
58
59	ATF_REQUIRE(MB_CUR_MAX == 1);
60
61	/* Null wide character, internal state. */
62	memset(buf, 0xcc, sizeof(buf));
63	buf[0] = 0;
64	ATF_REQUIRE(mbrtowc(&wc, buf, 1, NULL) == 0);
65	ATF_REQUIRE(wc == 0);
66
67	/* Null wide character. */
68	memset(&s, 0, sizeof(s));
69	ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 0);
70	ATF_REQUIRE(wc == 0);
71
72	/* Latin letter A, internal state. */
73	ATF_REQUIRE(mbrtowc(NULL, 0, 0, NULL) == 0);
74	buf[0] = 'A';
75	ATF_REQUIRE(mbrtowc(&wc, buf, 1, NULL) == 1);
76	ATF_REQUIRE(wc == L'A');
77
78	/* Latin letter A. */
79	memset(&s, 0, sizeof(s));
80	ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 1);
81	ATF_REQUIRE(wc == L'A');
82
83	/* Incomplete character sequence. */
84	wc = L'z';
85	memset(&s, 0, sizeof(s));
86	ATF_REQUIRE(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
87	ATF_REQUIRE(wc == L'z');
88
89	/* Check that mbrtowc() doesn't access the buffer when n == 0. */
90	wc = L'z';
91	memset(&s, 0, sizeof(s));
92	buf[0] = '\0';
93	ATF_REQUIRE(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
94	ATF_REQUIRE(wc == L'z');
95
96	/*
97	 * Japanese (EUC) locale.
98	 */
99
100	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
101	ATF_REQUIRE(MB_CUR_MAX > 1);
102
103	/* Null wide character, internal state. */
104	ATF_REQUIRE(mbrtowc(NULL, 0, 0, NULL) == 0);
105	memset(buf, 0xcc, sizeof(buf));
106	buf[0] = 0;
107	ATF_REQUIRE(mbrtowc(&wc, buf, 1, NULL) == 0);
108	ATF_REQUIRE(wc == 0);
109
110	/* Null wide character. */
111	memset(&s, 0, sizeof(s));
112	ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 0);
113	ATF_REQUIRE(wc == 0);
114
115	/* Latin letter A, internal state. */
116	ATF_REQUIRE(mbrtowc(NULL, 0, 0, NULL) == 0);
117	buf[0] = 'A';
118	ATF_REQUIRE(mbrtowc(&wc, buf, 1, NULL) == 1);
119	ATF_REQUIRE(wc == L'A');
120
121	/* Latin letter A. */
122	memset(&s, 0, sizeof(s));
123	ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 1);
124	ATF_REQUIRE(wc == L'A');
125
126	/* Incomplete character sequence (zero length). */
127	wc = L'z';
128	memset(&s, 0, sizeof(s));
129	ATF_REQUIRE(mbrtowc(&wc, buf, 0, &s) == (size_t)-2);
130	ATF_REQUIRE(wc == L'z');
131
132	/* Incomplete character sequence (truncated double-byte). */
133	memset(buf, 0xcc, sizeof(buf));
134	buf[0] = 0xa3;
135	buf[1] = 0x00;
136	memset(&s, 0, sizeof(s));
137	wc = 0;
138	ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == (size_t)-2);
139
140	/* Same as above, but complete. */
141	buf[1] = 0xc1;
142	memset(&s, 0, sizeof(s));
143	wc = 0;
144	ATF_REQUIRE(mbrtowc(&wc, buf, 2, &s) == 2);
145	ATF_REQUIRE(wc == 0xa3c1);
146
147	/* Test restarting behaviour. */
148	memset(buf, 0xcc, sizeof(buf));
149	buf[0] = 0xa3;
150	memset(&s, 0, sizeof(s));
151	wc = 0;
152	ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == (size_t)-2);
153	ATF_REQUIRE(wc == 0);
154	buf[0] = 0xc1;
155	ATF_REQUIRE(mbrtowc(&wc, buf, 1, &s) == 1);
156	ATF_REQUIRE(wc == 0xa3c1);
157}
158
159ATF_TP_ADD_TCS(tp)
160{
161
162	ATF_TP_ADD_TC(tp, mbrtowc_test);
163
164	return (atf_no_error());
165}
166