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