xref: /freebsd/lib/libc/tests/locale/mbsnrtowcs_test.c (revision 49b49cda41feabe3439f7318e8bf40e3896c7bf4)
1 /*-
2  * Copyright (c) 2002-2004 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 mbsnrtowcs().
29  *
30  * The function is tested with both the "C" ("POSIX") LC_CTYPE setting and
31  * "ja_JP.eucJP". Other encodings are not tested.
32  */
33 
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
36 
37 #include <errno.h>
38 #include <limits.h>
39 #include <locale.h>
40 #include <stdio.h>
41 #include <stdlib.h>
42 #include <string.h>
43 #include <wchar.h>
44 
45 #include <atf-c.h>
46 
47 ATF_TC_WITHOUT_HEAD(mbsnrtowcs_test);
48 ATF_TC_BODY(mbsnrtowcs_test, tc)
49 {
50 	char srcbuf[128];
51 	wchar_t dstbuf[128];
52 	char *src;
53 	mbstate_t s;
54 
55 	/* C/POSIX locale. */
56 
57 	/* Simple null terminated string. */
58 	memset(srcbuf, 0xcc, sizeof(srcbuf));
59 	strcpy(srcbuf, "hello");
60 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
61 	src = srcbuf;
62 	memset(&s, 0, sizeof(s));
63 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 6, sizeof(dstbuf) /
64 	    sizeof(*dstbuf), &s) == 5);
65 	ATF_REQUIRE(wcscmp(dstbuf, L"hello") == 0);
66 	ATF_REQUIRE(dstbuf[6] == 0xcccc);
67 	ATF_REQUIRE(src == NULL);
68 
69 	/* Simple null terminated string, stopping early. */
70 	memset(srcbuf, 0xcc, sizeof(srcbuf));
71 	strcpy(srcbuf, "hello");
72 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
73 	src = srcbuf;
74 	memset(&s, 0, sizeof(s));
75 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 4, sizeof(dstbuf) /
76 	    sizeof(*dstbuf), &s) == 4);
77 	ATF_REQUIRE(wmemcmp(dstbuf, L"hell", 4) == 0);
78 	ATF_REQUIRE(dstbuf[5] == 0xcccc);
79 	ATF_REQUIRE(src == srcbuf + 4);
80 
81 	/* Not enough space in destination buffer. */
82 	memset(srcbuf, 0xcc, sizeof(srcbuf));
83 	strcpy(srcbuf, "hello");
84 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
85 	src = srcbuf;
86 	memset(&s, 0, sizeof(s));
87 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 6, 4, &s) == 4);
88 	ATF_REQUIRE(wmemcmp(dstbuf, L"hell", 4) == 0);
89 	ATF_REQUIRE(dstbuf[5] == 0xcccc);
90 	ATF_REQUIRE(src == srcbuf + 4);
91 
92 	/* Null terminated string, internal dest. buffer */
93 	memset(srcbuf, 0xcc, sizeof(srcbuf));
94 	strcpy(srcbuf, "hello");
95 	src = srcbuf;
96 	memset(&s, 0, sizeof(s));
97 	ATF_REQUIRE(mbsnrtowcs(NULL, (const char **)&src, 6, 0, &s) == 5);
98 
99 	/* Null terminated string, internal dest. buffer, stopping early */
100 	memset(srcbuf, 0xcc, sizeof(srcbuf));
101 	strcpy(srcbuf, "hello");
102 	src = srcbuf;
103 	memset(&s, 0, sizeof(s));
104 	ATF_REQUIRE(mbsnrtowcs(NULL, (const char **)&src, 4, 0, &s) == 4);
105 
106 	/* Null terminated string, internal state. */
107 	memset(srcbuf, 0xcc, sizeof(srcbuf));
108 	strcpy(srcbuf, "hello");
109 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
110 	src = srcbuf;
111 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 6, sizeof(dstbuf) /
112 	    sizeof(*dstbuf), NULL) == 5);
113 	ATF_REQUIRE(wcscmp(dstbuf, L"hello") == 0);
114 	ATF_REQUIRE(dstbuf[6] == 0xcccc);
115 	ATF_REQUIRE(src == NULL);
116 
117 	/* Null terminated string, internal state, internal dest. buffer. */
118 	memset(srcbuf, 0xcc, sizeof(srcbuf));
119 	strcpy(srcbuf, "hello");
120 	src = srcbuf;
121 	ATF_REQUIRE(mbsnrtowcs(NULL, (const char **)&src, 6, 0, NULL) == 5);
122 
123 	/* Empty source buffer. */
124 	memset(srcbuf, 0xcc, sizeof(srcbuf));
125 	srcbuf[0] = '\0';
126 	src = srcbuf;
127 	memset(&s, 0, sizeof(s));
128 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
129 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 1, 1, &s) == 0);
130 	ATF_REQUIRE(dstbuf[0] == 0);
131 	ATF_REQUIRE(dstbuf[1] == 0xcccc);
132 	ATF_REQUIRE(src == NULL);
133 
134 	/* Zero length destination buffer. */
135 	memset(srcbuf, 0xcc, sizeof(srcbuf));
136 	strcpy(srcbuf, "hello");
137 	src = srcbuf;
138 	memset(&s, 0, sizeof(s));
139 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
140 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 1, 0, &s) == 0);
141 	ATF_REQUIRE(dstbuf[0] == 0xcccc);
142 	ATF_REQUIRE(src == srcbuf);
143 
144 	/* Zero length source buffer. */
145 	memset(srcbuf, 0xcc, sizeof(srcbuf));
146 	src = srcbuf;
147 	memset(&s, 0, sizeof(s));
148 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
149 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 0, 1, &s) == 0);
150 	ATF_REQUIRE(dstbuf[0] == 0xcccc);
151 	ATF_REQUIRE(src == srcbuf);
152 
153 	/*
154 	 * Japanese (EUC) locale.
155 	 */
156 
157 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
158 	ATF_REQUIRE(MB_CUR_MAX > 1);
159 
160 	memset(srcbuf, 0xcc, sizeof(srcbuf));
161 	strcpy(srcbuf, "\xA3\xC1 B \xA3\xC3");
162 	src = srcbuf;
163 	memset(&s, 0, sizeof(s));
164 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
165 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 8, sizeof(dstbuf) /
166 	    sizeof(*dstbuf), &s) == 5);
167 	ATF_REQUIRE(dstbuf[0] == 0xA3C1 && dstbuf[1] == 0x20 && dstbuf[2] == 0x42 &&
168 	    dstbuf[3] == 0x20 && dstbuf[4] == 0xA3C3 && dstbuf[5] == 0);
169 	ATF_REQUIRE(src == NULL);
170 
171 	/* Partial character. */
172 	memset(srcbuf, 0xcc, sizeof(srcbuf));
173 	strcpy(srcbuf, "\xA3\xC1 B \xA3\xC3");
174 	src = srcbuf;
175 	memset(&s, 0, sizeof(s));
176 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
177 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 6, sizeof(dstbuf) /
178 	    sizeof(*dstbuf), &s) == 4);
179 	ATF_REQUIRE(src == srcbuf + 6);
180 	ATF_REQUIRE(!mbsinit(&s));
181 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 1, sizeof(dstbuf) /
182 	    sizeof(*dstbuf), &s) == 1);
183 	ATF_REQUIRE(src == srcbuf + 7);
184 	ATF_REQUIRE(mbsnrtowcs(dstbuf, (const char **)&src, 1, sizeof(dstbuf) /
185 	    sizeof(*dstbuf), &s) == 0);
186 	ATF_REQUIRE(src == NULL);
187 }
188 
189 ATF_TP_ADD_TCS(tp)
190 {
191 
192 	ATF_TP_ADD_TC(tp, mbsnrtowcs_test);
193 
194 	return (atf_no_error());
195 }
196