xref: /freebsd/lib/libc/tests/locale/mbrlen_test.c (revision 42249ef2)
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 mbrlen(), 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("$FreeBSD$");
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 
48 ATF_TC_WITHOUT_HEAD(mbrlen_test);
49 ATF_TC_BODY(mbrlen_test, tc)
50 {
51 	mbstate_t s;
52 	char buf[MB_LEN_MAX + 1];
53 
54 	/* C/POSIX locale. */
55 	ATF_REQUIRE(MB_CUR_MAX == 1);
56 
57 	/* Null wide character, internal state. */
58 	memset(buf, 0xcc, sizeof(buf));
59 	buf[0] = 0;
60 	ATF_REQUIRE(mbrlen(buf, 1, NULL) == 0);
61 
62 	/* Null wide character. */
63 	memset(&s, 0, sizeof(s));
64 	ATF_REQUIRE(mbrlen(buf, 1, &s) == 0);
65 
66 	/* Latin letter A, internal state. */
67 	ATF_REQUIRE(mbrlen(NULL, 0, NULL) == 0);
68 	buf[0] = 'A';
69 	ATF_REQUIRE(mbrlen(buf, 1, NULL) == 1);
70 
71 	/* Latin letter A. */
72 	memset(&s, 0, sizeof(s));
73 	ATF_REQUIRE(mbrlen(buf, 1, &s) == 1);
74 
75 	/* Incomplete character sequence. */
76 	memset(&s, 0, sizeof(s));
77 	ATF_REQUIRE(mbrlen(buf, 0, &s) == (size_t)-2);
78 
79 	/* Japanese (EUC) locale. */
80 
81 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
82 	ATF_REQUIRE(MB_CUR_MAX > 1);
83 
84 	/* Null wide character, internal state. */
85 	ATF_REQUIRE(mbrlen(NULL, 0, NULL) == 0);
86 	memset(buf, 0xcc, sizeof(buf));
87 	buf[0] = 0;
88 	ATF_REQUIRE(mbrlen(buf, 1, NULL) == 0);
89 
90 	/* Null wide character. */
91 	memset(&s, 0, sizeof(s));
92 	ATF_REQUIRE(mbrlen(buf, 1, &s) == 0);
93 
94 	/* Latin letter A, internal state. */
95 	ATF_REQUIRE(mbrlen(NULL, 0, NULL) == 0);
96 	buf[0] = 'A';
97 	ATF_REQUIRE(mbrlen(buf, 1, NULL) == 1);
98 
99 	/* Latin letter A. */
100 	memset(&s, 0, sizeof(s));
101 	ATF_REQUIRE(mbrlen(buf, 1, &s) == 1);
102 
103 	/* Incomplete character sequence (zero length). */
104 	memset(&s, 0, sizeof(s));
105 	ATF_REQUIRE(mbrlen(buf, 0, &s) == (size_t)-2);
106 
107 	/* Incomplete character sequence (truncated double-byte). */
108 	memset(buf, 0xcc, sizeof(buf));
109 	buf[0] = 0xa3;
110 	buf[1] = 0x00;
111 	memset(&s, 0, sizeof(s));
112 	ATF_REQUIRE(mbrlen(buf, 1, &s) == (size_t)-2);
113 
114 	/* Same as above, but complete. */
115 	buf[1] = 0xc1;
116 	memset(&s, 0, sizeof(s));
117 	ATF_REQUIRE(mbrlen(buf, 2, &s) == 2);
118 }
119 
120 ATF_TP_ADD_TCS(tp)
121 {
122 
123 	ATF_TP_ADD_TC(tp, mbrlen_test);
124 
125 	return (atf_no_error());
126 }
127