wcstombs_test.c revision 106686 
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 wcstombs(), 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: head/tools/regression/lib/libc/locale/test-wcstombs.c 106686 2002-11-09 04:33:02Z tjr $");
37
38#include <assert.h>
39#include <errno.h>
40#include <limits.h>
41#include <locale.h>
42#include <stdio.h>
43#include <stdlib.h>
44#include <string.h>
45#include <wchar.h>
46
47int
48main(int argc, char *argv[])
49{
50	wchar_t srcbuf[128];
51	char dstbuf[128];
52
53	/*
54	 * C/POSIX locale.
55	 */
56
57	/* Simple null terminated string. */
58	wmemset(srcbuf, 0xcc, sizeof(srcbuf) / sizeof(*srcbuf));
59	wcscpy(srcbuf, L"hello");
60	memset(dstbuf, 0xcc, sizeof(dstbuf));
61	assert(wcstombs(dstbuf, srcbuf, sizeof(dstbuf)) == 5);
62	assert(strcmp(dstbuf, "hello") == 0);
63	assert((unsigned char)dstbuf[6] == 0xcc);
64
65	/* Not enough space in destination buffer. */
66	wmemset(srcbuf, 0xcc, sizeof(srcbuf) / sizeof(*srcbuf));
67	wcscpy(srcbuf, L"hello");
68	memset(dstbuf, 0xcc, sizeof(dstbuf));
69	assert(wcstombs(dstbuf, srcbuf, 4) == 4);
70	assert(memcmp(dstbuf, "hell", 4) == 0);
71	assert((unsigned char)dstbuf[5] == 0xcc);
72
73	/* Null terminated string, internal dest. buffer */
74	wmemset(srcbuf, 0xcc, sizeof(srcbuf) / sizeof(*srcbuf));
75	wcscpy(srcbuf, L"hello");
76	assert(wcstombs(NULL, srcbuf, sizeof(dstbuf)) == 5);
77
78	/* Null terminated string, internal state. */
79	wmemset(srcbuf, 0xcc, sizeof(srcbuf) / sizeof(*srcbuf));
80	wcscpy(srcbuf, L"hello");
81	memset(dstbuf, 0xcc, sizeof(dstbuf));
82	assert(wcstombs(dstbuf, srcbuf, sizeof(dstbuf)) == 5);
83	assert(strcmp(dstbuf, "hello") == 0);
84	assert((unsigned char)dstbuf[6] == 0xcc);
85
86	/* Null terminated string, internal state, internal dest. buffer. */
87	wmemset(srcbuf, 0xcc, sizeof(srcbuf) / sizeof(*srcbuf));
88	wcscpy(srcbuf, L"hello");
89	assert(wcstombs(NULL, srcbuf, 0) == 5);
90
91	/* Empty source buffer. */
92	wmemset(srcbuf, 0xcc, sizeof(srcbuf) / sizeof(*srcbuf));
93	srcbuf[0] = L'\0';
94	memset(dstbuf, 0xcc, sizeof(dstbuf));
95	assert(wcstombs(dstbuf, srcbuf, sizeof(dstbuf)) == 0);
96	assert(dstbuf[0] == L'\0');
97
98	/* Zero length destination buffer. */
99	wmemset(srcbuf, 0xcc, sizeof(srcbuf) / sizeof(*srcbuf));
100	wcscpy(srcbuf, L"hello");
101	memset(dstbuf, 0xcc, sizeof(dstbuf));
102	assert(wcstombs(dstbuf, srcbuf, 0) == 0);
103	assert((unsigned char)dstbuf[0] == 0xcc);
104
105	/*
106	 * Japanese (EUC) locale.
107	 */
108
109	assert(strcmp(setlocale(LC_CTYPE, "ja_JP.eucJP"), "ja_JP.eucJP") == 0);
110	assert(MB_CUR_MAX > 1);
111
112	wmemset(srcbuf, 0xcc, sizeof(srcbuf) / sizeof(*srcbuf));
113	srcbuf[0] = 0xA3C1;
114	srcbuf[1] = 0x0020;
115	srcbuf[2] = 0x0042;
116	srcbuf[3] = 0x0020;
117	srcbuf[4] = 0xA3C3;
118	srcbuf[5] = 0x0000;
119	memset(dstbuf, 0xcc, sizeof(dstbuf));
120	assert(wcstombs(dstbuf, srcbuf, sizeof(dstbuf)) == 7);
121	assert(strcmp(dstbuf, "\xA3\xC1 B \xA3\xC3") == 0);
122	assert((unsigned char)dstbuf[8] == 0xcc);
123
124	printf("PASS wcstombs()\n");
125
126	return (0);
127}
128