1/*	$OpenBSD: test_mbrtowc.c,v 1.3 2020/03/09 09:29:10 dlg Exp $	*/
2/*
3 * Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>
4 *
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#include <sys/types.h>
19#include <err.h>
20#include <errno.h>
21#include <locale.h>
22#include <stdlib.h>
23#include <string.h>
24#include <wchar.h>
25
26static mbstate_t	 mbs;
27
28void
29onetest(const char *name, const char *in, size_t insz,
30    int outerr, size_t outsz, wint_t out)
31{
32	wchar_t		 wc;
33	size_t		 sz;
34
35	sz = mbrtowc(&wc, in, insz, &mbs);
36	if (errno != outerr)
37		err(1, "%zu %s(%zd)", MB_CUR_MAX, name, insz);
38	if (sz != outsz || (out != WEOF && wc != out))
39		errx(1, "%zu %s(%zd) = (%zd, %d) != (%zd, %d)",
40		    MB_CUR_MAX, name, insz, sz, wc, outsz, out);
41	if (mbsinit(&mbs) == (insz && outsz == (size_t)-2))
42		errx(1, "%zu %s(%zd) mbsinit", MB_CUR_MAX, name, insz);
43	if (errno == 0 && outerr == 0)
44		return;
45	errno = 0;
46	memset(&mbs, 0, sizeof(mbs));
47}
48
49int
50main(void)
51{
52	onetest("NUL", "", 0, 0, -2, WEOF);
53	onetest("NUL", "", 2, 0, 0, L'\0');
54	onetest("BEL", "\a", 2, 0, 1, L'\a');
55	onetest("A", "A", 2, 0, 1, L'A');
56	onetest("DEL", "\177", 2, 0, 1, L'\177');
57	onetest("CSI", "\233", 2, 0, 1, L'\233');
58
59	if (setlocale(LC_CTYPE, "en_US.UTF-8") == NULL)
60		errx(1, "setlocale(UTF-8) failed");
61
62	onetest("NUL", "", 0, 0, -2, WEOF);
63	onetest("NUL", "", 8, 0, 0, L'\0');
64	onetest("BEL", "\a", 8, 0, 1, L'\a');
65	onetest("A", "A", 8, 0, 1, L'A');
66	onetest("DEL", "\177", 8, 0, 1, L'\177');
67	onetest("0x80", "\200", 8, EILSEQ, -1, WEOF);
68	onetest("0xc3", "\303", 1, 0, -2, WEOF);
69	onetest("U+00E9", "\251", 8, 0, 1, 0xe9);
70	onetest("0xec", "\354", 1, 0, -2, WEOF);
71	onetest("0xecbf", "\277", 1, 0, -2, WEOF);
72	onetest("U+CFFF", "\277", 8, 0, 1, 0xcfff);
73
74	if (setlocale(LC_CTYPE, "POSIX") == NULL)
75		errx(1, "setlocale(POSIX) failed");
76
77	onetest("0xff", "\277", 2, 0, 1, L'\277');
78
79	if (setlocale(LC_CTYPE, "en_US.UTF-8") == NULL)
80		errx(1, "second setlocale(UTF-8) failed");
81
82	onetest("U+13000", "\360\223\200\200", 8, 0, 4, 0x13000);
83
84	return 0;
85}
86