1 /*
2  * Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <sys/types.h>
18 #include <err.h>
19 #include <errno.h>
20 #include <limits.h>
21 #include <locale.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <wchar.h>
25 
26 static mbstate_t	 mbs;
27 
28 void
29 onetest(const char *name, const wchar_t wcin, int outerr, const char *out)
30 {
31 	char		 buf[MB_LEN_MAX];
32 	size_t		 sz, outsz;
33 
34 	memset(buf, 0, MB_LEN_MAX);
35 	outsz = out == NULL ? (size_t)-1 : *out == '\0' ? 1 : strlen(out);
36 	sz = wcrtomb(buf, wcin, &mbs);
37 	if (errno != outerr)
38 		err(1, "%d %s U+%04X", MB_CUR_MAX, name, wcin);
39 	if (sz != outsz || (out != NULL && strncmp(buf, out, sz)))
40 		errx(1, "%d %s U+%04X: %4.4s(%zd) != %4.4s(%zd)",
41 		    MB_CUR_MAX, name, wcin, buf, sz,
42 		    out == NULL ? "(NULL)" : out, outsz);
43 	if (mbsinit(&mbs) == 0)
44 		errx(1, "%d %s U+%04X mbsinit", MB_CUR_MAX, name, wcin);
45 	if (errno == 0 && outerr == 0)
46 		return;
47 	errno = 0;
48 	memset(&mbs, 0, sizeof(mbs));
49 }
50 
51 int
52 main(void)
53 {
54 	onetest("NUL", L'\0', 0, "");
55 	onetest("BEL", L'\a', 0, "\a");
56 	onetest("A", L'A', 0, "A");
57 	onetest("DEL", L'\177', 0, "\177");
58 	onetest("CSI", L'\233', 0, "\233");
59 	onetest("0x100", 0x100, EILSEQ, NULL);
60 
61 	if (setlocale(LC_CTYPE, "en_US.UTF-8") == NULL)
62 		errx(1, "setlocale(UTF-8) failed"),
63 
64 	onetest("NUL", L'\0', 0, "");
65 	onetest("BEL", L'\a', 0, "\a");
66 	onetest("A", L'A', 0, "A");
67 	onetest("DEL", L'\177', 0, "\177");
68 	onetest("CSI", L'\233', 0, "\302\233");
69 	onetest("0xe9", 0xe9, 0, "\303\251");
70 	onetest("0xcfff", 0xcfff, 0, "\354\277\277");
71 	onetest("0xd800", 0xd800, EILSEQ, NULL);
72 
73 	if (setlocale(LC_CTYPE, "POSIX") == NULL)
74 		errx(1, "setlocale(POSIX) failed"),
75 
76 	onetest("0xff", L'\377', 0, "\377");
77 
78 	if (setlocale(LC_CTYPE, "en_US.UTF-8") == NULL)
79 		errx(1, "second setlocale(UTF-8) failed"),
80 
81 	onetest("U+13000", 0x13000, 0, "\360\223\200\200");
82 
83 	return 0;
84 }
85