1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1982, 1988, 1991, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#ifndef _SYS_CTYPE_H_
38#define	_SYS_CTYPE_H_
39
40#ifdef _KERNEL
41
42static __inline int
43isspace(int c)
44{
45	return (c == ' ' || (c >= '\t' && c <= '\r'));
46}
47
48static __inline int
49isascii(int c)
50{
51	return ((c & ~0x7f) == 0);
52}
53
54static __inline int
55isupper(int c)
56{
57	return (c >= 'A' && c <= 'Z');
58}
59
60static __inline int
61islower(int c)
62{
63	return (c >= 'a' && c <= 'z');
64}
65
66static __inline int
67isalpha(int c)
68{
69	return (isupper(c) || islower(c));
70}
71
72static __inline int
73isdigit(int c)
74{
75	return (c >= '0' && c <= '9');
76}
77
78static __inline int
79isxdigit(int c)
80{
81	return (isdigit(c) || (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'));
82}
83
84static __inline int
85isprint(int c)
86{
87	return (c >= ' ' && c <= '~');
88}
89
90static __inline int
91toupper(int c)
92{
93	return (c - 0x20 * ((c >= 'a') && (c <= 'z')));
94}
95
96static __inline int
97tolower(int c)
98{
99	return (c + 0x20 * ((c >= 'A') && (c <= 'Z')));
100}
101
102#endif
103#endif /* !_SYS_CTYPE_H_ */
104