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