xref: /freebsd/lib/libc/tests/locale/mbsrtowcs_test.c (revision 4c9a0adad18263ec8725d9bfc5f560c6ad1da8bd)
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 mbsrtowcs(), 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 
45 ATF_TC_WITHOUT_HEAD(mbsrtowcs_test);
46 ATF_TC_BODY(mbsrtowcs_test, tc)
47 {
48 	char srcbuf[128];
49 	wchar_t dstbuf[128];
50 	char *src;
51 	mbstate_t s;
52 
53 	/*
54 	 * C/POSIX locale.
55 	 */
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(mbsrtowcs(dstbuf, (const char **)&src, 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 	/* Not enough space in destination buffer. */
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(mbsrtowcs(dstbuf, (const char **)&src, 4, &s) == 4);
76 	ATF_REQUIRE(wmemcmp(dstbuf, L"hell", 4) == 0);
77 	ATF_REQUIRE(dstbuf[5] == 0xcccc);
78 	ATF_REQUIRE(src == srcbuf + 4);
79 
80 	/* Null terminated string, internal dest. buffer */
81 	memset(srcbuf, 0xcc, sizeof(srcbuf));
82 	strcpy(srcbuf, "hello");
83 	src = srcbuf;
84 	memset(&s, 0, sizeof(s));
85 	ATF_REQUIRE(mbsrtowcs(NULL, (const char **)&src, 0, &s) == 5);
86 
87 	/* Null terminated string, internal state. */
88 	memset(srcbuf, 0xcc, sizeof(srcbuf));
89 	strcpy(srcbuf, "hello");
90 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
91 	src = srcbuf;
92 	ATF_REQUIRE(mbsrtowcs(dstbuf, (const char **)&src, sizeof(dstbuf) /
93 	    sizeof(*dstbuf), NULL) == 5);
94 	ATF_REQUIRE(wcscmp(dstbuf, L"hello") == 0);
95 	ATF_REQUIRE(dstbuf[6] == 0xcccc);
96 	ATF_REQUIRE(src == NULL);
97 
98 	/* Null terminated string, internal state, internal dest. buffer. */
99 	memset(srcbuf, 0xcc, sizeof(srcbuf));
100 	strcpy(srcbuf, "hello");
101 	src = srcbuf;
102 	ATF_REQUIRE(mbsrtowcs(NULL, (const char **)&src, 0, NULL) == 5);
103 
104 	/* Empty source buffer. */
105 	memset(srcbuf, 0xcc, sizeof(srcbuf));
106 	srcbuf[0] = '\0';
107 	src = srcbuf;
108 	memset(&s, 0, sizeof(s));
109 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
110 	ATF_REQUIRE(mbsrtowcs(dstbuf, (const char **)&src, 1, &s) == 0);
111 	ATF_REQUIRE(dstbuf[0] == 0);
112 	ATF_REQUIRE(dstbuf[1] == 0xcccc);
113 	ATF_REQUIRE(src == NULL);
114 
115 	/* Zero length destination buffer. */
116 	memset(srcbuf, 0xcc, sizeof(srcbuf));
117 	strcpy(srcbuf, "hello");
118 	src = srcbuf;
119 	memset(&s, 0, sizeof(s));
120 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
121 	ATF_REQUIRE(mbsrtowcs(dstbuf, (const char **)&src, 0, &s) == 0);
122 	ATF_REQUIRE(dstbuf[0] == 0xcccc);
123 	ATF_REQUIRE(src == srcbuf);
124 
125 	/*
126 	 * Japanese (EUC) locale.
127 	 */
128 
129 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
130 	ATF_REQUIRE(MB_CUR_MAX > 1);
131 
132 	memset(srcbuf, 0xcc, sizeof(srcbuf));
133 	strcpy(srcbuf, "\xA3\xC1 B \xA3\xC3");
134 	src = srcbuf;
135 	memset(&s, 0, sizeof(s));
136 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
137 	ATF_REQUIRE(mbsrtowcs(dstbuf, (const char **)&src, sizeof(dstbuf) /
138 	    sizeof(*dstbuf), &s) == 5);
139 	ATF_REQUIRE(dstbuf[0] == 0xA3C1 && dstbuf[1] == 0x20 && dstbuf[2] == 0x42 &&
140 	    dstbuf[3] == 0x20 && dstbuf[4] == 0xA3C3 && dstbuf[5] == 0);
141 	ATF_REQUIRE(src == NULL);
142 }
143 
144 ATF_TP_ADD_TCS(tp)
145 {
146 
147 	ATF_TP_ADD_TC(tp, mbsrtowcs_test);
148 
149 	return (atf_no_error());
150 }
151