xref: /freebsd/lib/libc/tests/locale/mbstowcs_test.c (revision 5f4c09dd85bff675e0ca63c55ea3c517e0fddfcc)
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 <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(mbstowcs_test);
46 ATF_TC_BODY(mbstowcs_test, tc)
47 {
48 	char srcbuf[128];
49 	wchar_t dstbuf[128];
50 
51 	/* C/POSIX locale. */
52 
53 	/* Simple null terminated string. */
54 	memset(srcbuf, 0xcc, sizeof(srcbuf));
55 	strcpy(srcbuf, "hello");
56 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
57 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, sizeof(dstbuf) / sizeof(*dstbuf)) == 5);
58 	ATF_REQUIRE(wcscmp(dstbuf, L"hello") == 0);
59 	ATF_REQUIRE(dstbuf[6] == 0xcccc);
60 
61 	/* Not enough space in destination buffer. */
62 	memset(srcbuf, 0xcc, sizeof(srcbuf));
63 	strcpy(srcbuf, "hello");
64 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
65 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, 4) == 4);
66 	ATF_REQUIRE(wmemcmp(dstbuf, L"hell", 4) == 0);
67 	ATF_REQUIRE(dstbuf[5] == 0xcccc);
68 
69 	/* Null terminated string, internal dest. buffer (XSI extension) */
70 	memset(srcbuf, 0xcc, sizeof(srcbuf));
71 	strcpy(srcbuf, "hello");
72 	ATF_REQUIRE(mbstowcs(NULL, srcbuf, 0) == 5);
73 
74 	/* Empty source buffer. */
75 	memset(srcbuf, 0xcc, sizeof(srcbuf));
76 	srcbuf[0] = '\0';
77 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
78 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, 1) == 0);
79 	ATF_REQUIRE(dstbuf[0] == 0);
80 	ATF_REQUIRE(dstbuf[1] == 0xcccc);
81 
82 	/* Zero length destination buffer. */
83 	memset(srcbuf, 0xcc, sizeof(srcbuf));
84 	strcpy(srcbuf, "hello");
85 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
86 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, 0) == 0);
87 	ATF_REQUIRE(dstbuf[0] == 0xcccc);
88 
89 	/* Japanese (EUC) locale. */
90 
91 	ATF_REQUIRE(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
92 	ATF_REQUIRE(MB_CUR_MAX > 1);
93 
94 	memset(srcbuf, 0xcc, sizeof(srcbuf));
95 	strcpy(srcbuf, "\xA3\xC1 B \xA3\xC3");
96 	wmemset(dstbuf, 0xcccc, sizeof(dstbuf) / sizeof(*dstbuf));
97 	ATF_REQUIRE(mbstowcs(dstbuf, srcbuf, sizeof(dstbuf) / sizeof(*dstbuf)) == 5);
98 	ATF_REQUIRE(dstbuf[0] == 0xA3C1 && dstbuf[1] == 0x20 && dstbuf[2] == 0x42 &&
99 	    dstbuf[3] == 0x20 && dstbuf[4] == 0xA3C3 && dstbuf[5] == 0);
100 }
101 
102 ATF_TP_ADD_TCS(tp)
103 {
104 
105 	ATF_TP_ADD_TC(tp, mbstowcs_test);
106 
107 	return (atf_no_error());
108 }
109