GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/locale/mbtowc.c Lines: 0 8 0.0 %
Date: 2017-11-13 Branches: 0 5 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: mbtowc.c,v 1.3 2016/02/27 14:02:13 schwarze Exp $ */
2
3
/*-
4
 * Copyright (c) 2002-2004 Tim J. Robbins.
5
 * All rights reserved.
6
 *
7
 * Redistribution and use in source and binary forms, with or without
8
 * modification, are permitted provided that the following conditions
9
 * are met:
10
 * 1. Redistributions of source code must retain the above copyright
11
 *    notice, this list of conditions and the following disclaimer.
12
 * 2. Redistributions in binary form must reproduce the above copyright
13
 *    notice, this list of conditions and the following disclaimer in the
14
 *    documentation and/or other materials provided with the distribution.
15
 *
16
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26
 * SUCH DAMAGE.
27
 */
28
29
30
#include <stdlib.h>
31
#include <string.h>
32
#include <wchar.h>
33
#include <errno.h>
34
35
int
36
mbtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n)
37
{
38
	static mbstate_t mbs;
39
	size_t rval;
40
41
	if (s == NULL) {
42
		/* No support for state dependent encodings. */
43
		memset(&mbs, 0, sizeof(mbs));
44
		return (0);
45
	}
46
	rval = mbrtowc(pwc, s, n, &mbs);
47
48
	switch (rval) {
49
	case (size_t)-2:
50
		errno = EILSEQ;
51
		/* FALLTHROUGH */
52
	case (size_t)-1:
53
		return -1;
54
	default:
55
		return (int)rval;
56
	}
57
}