xref: /freebsd/lib/libc/tests/locale/mbstowcs_test.c (revision dd41de95a84d979615a2ef11df6850622bf6184e)
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 mbstowcs(), 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(mbstowcs_test);
49 ATF_TC_BODY(mbstowcs_test, tc)
50 {
51 	char srcbuf[128];
52 	wchar_t dstbuf[128];
53 
54 	/* C/POSIX locale. */
55 
56 	/* Simple null terminated string. */
57 	memset(srcbuf, 0xcc, sizeof(srcbuf));
58 	strcpy(srcbuf, "hello");
59 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
60 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, sizeof(dstbuf) / sizeof(*dstbuf)) == 5);
61 	ATF_REQUIRE(wcscmp(dstbuf, L"hello") == 0);
62 	ATF_REQUIRE(dstbuf[6] == 0xcccc);
63 
64 	/* Not enough space in destination buffer. */
65 	memset(srcbuf, 0xcc, sizeof(srcbuf));
66 	strcpy(srcbuf, "hello");
67 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
68 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, 4) == 4);
69 	ATF_REQUIRE(wmemcmp(dstbuf, L"hell", 4) == 0);
70 	ATF_REQUIRE(dstbuf[5] == 0xcccc);
71 
72 	/* Null terminated string, internal dest. buffer (XSI extension) */
73 	memset(srcbuf, 0xcc, sizeof(srcbuf));
74 	strcpy(srcbuf, "hello");
75 	ATF_REQUIRE(mbstowcs(NULL, srcbuf, 0) == 5);
76 
77 	/* Empty source buffer. */
78 	memset(srcbuf, 0xcc, sizeof(srcbuf));
79 	srcbuf[0] = '\0';
80 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
81 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, 1) == 0);
82 	ATF_REQUIRE(dstbuf[0] == 0);
83 	ATF_REQUIRE(dstbuf[1] == 0xcccc);
84 
85 	/* Zero length destination buffer. */
86 	memset(srcbuf, 0xcc, sizeof(srcbuf));
87 	strcpy(srcbuf, "hello");
88 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
89 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, 0) == 0);
90 	ATF_REQUIRE(dstbuf[0] == 0xcccc);
91 
92 	/* Japanese (EUC) locale. */
93 
94 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
95 	ATF_REQUIRE(MB_CUR_MAX > 1);
96 
97 	memset(srcbuf, 0xcc, sizeof(srcbuf));
98 	strcpy(srcbuf, "\xA3\xC1 B \xA3\xC3");
99 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
100 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, sizeof(dstbuf) / sizeof(*dstbuf)) == 5);
101 	ATF_REQUIRE(dstbuf[0] == 0xA3C1 && dstbuf[1] == 0x20 && dstbuf[2] == 0x42 &&
102 	    dstbuf[3] == 0x20 && dstbuf[4] == 0xA3C3 && dstbuf[5] == 0);
103 }
104 
105 ATF_TP_ADD_TCS(tp)
106 {
107 
108 	ATF_TP_ADD_TC(tp, mbstowcs_test);
109 
110 	return (atf_no_error());
111 }
112