1/*-
2 * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
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#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <sys/mman.h>
31#include <sys/param.h>
32#include <assert.h>
33#include <stdio.h>
34#include <stdlib.h>
35#include <string.h>
36#include <wchar.h>
37
38static void *
39makebuf(size_t len, int guard_at_end)
40{
41	char *buf;
42	size_t alloc_size = roundup2(len, PAGE_SIZE) + PAGE_SIZE;
43
44	buf = mmap(NULL, alloc_size, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0);
45	assert(buf);
46	if (guard_at_end) {
47		assert(munmap(buf + alloc_size - PAGE_SIZE, PAGE_SIZE) == 0);
48		return (buf + alloc_size - PAGE_SIZE - len);
49	} else {
50		assert(munmap(buf, PAGE_SIZE) == 0);
51		return (buf + PAGE_SIZE);
52	}
53}
54
55static void
56test_wcsnlen(const wchar_t *s)
57{
58	wchar_t *s1;
59	size_t size, len, bufsize;
60	int i;
61
62	size = wcslen(s) + 1;
63	for (i = 0; i <= 1; i++) {
64	    for (bufsize = 0; bufsize <= size + 10; bufsize++) {
65		s1 = makebuf(bufsize * sizeof(wchar_t), i);
66		wmemcpy(s1, s, bufsize);
67		len = (size > bufsize) ? bufsize : size - 1;
68		assert(wcsnlen(s1, bufsize) == len);
69	    }
70	}
71}
72
73int
74main(int argc, char *argv[])
75{
76
77	printf("1..3\n");
78
79	test_wcsnlen(L"");
80	printf("ok 1 - wcsnlen\n");
81	test_wcsnlen(L"foo");
82	printf("ok 2 - wcsnlen\n");
83	test_wcsnlen(L"glorp");
84	printf("ok 3 - wcsnlen\n");
85
86	exit(0);
87}
88