source: openpam/trunk/lib/libpam/openpam_ctype.h

Last change on this file was 938, checked in by Dag-Erling Smørgrav, 4 years ago

Switch from $Id$ to $OpenPAM$.

  • Property svn:eol-style set to native
  • Property svn:keywords set to OpenPAM=%I
File size: 3.1 KB
Line 
1/*-
2 * Copyright (c) 2012-2014 Dag-Erling Smørgrav
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 * 3. The name of the author may not be used to endorse or promote
14 *    products derived from this software without specific prior written
15 *    permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $OpenPAM: openpam_ctype.h 938 2017-04-30 21:34:42Z des $
30 */
31
32#ifndef OPENPAM_CTYPE_H_INCLUDED
33#define OPENPAM_CTYPE_H_INCLUDED
34
35/*
36 * Evaluates to non-zero if the argument is a digit.
37 */
38#define is_digit(ch)                            \
39        (ch >= '0' && ch <= '9')
40
41/*
42 * Evaluates to non-zero if the argument is a hex digit.
43 */
44#define is_xdigit(ch)                           \
45        ((ch >= '0' && ch <= '9') ||            \
46         (ch >= 'a' && ch <= 'f') ||            \
47         (ch >= 'A' && ch <= 'F'))
48
49/*
50 * Evaluates to non-zero if the argument is an uppercase letter.
51 */
52#define is_upper(ch)                            \
53        (ch >= 'A' && ch <= 'Z')
54
55/*
56 * Evaluates to non-zero if the argument is a lowercase letter.
57 */
58#define is_lower(ch)                            \
59        (ch >= 'a' && ch <= 'z')
60
61/*
62 * Evaluates to non-zero if the argument is a letter.
63 */
64#define is_letter(ch)                           \
65        (is_upper(ch) || is_lower(ch))
66
67/*
68 * Evaluates to non-zero if the argument is a linear whitespace character.
69 * For the purposes of this macro, the definition of linear whitespace is
70 * extended to include the form feed and carraige return characters.
71 */
72#define is_lws(ch)                              \
73        (ch == ' ' || ch == '\t' || ch == '\f' || ch == '\r')
74
75/*
76 * Evaluates to non-zero if the argument is a whitespace character.
77 */
78#define is_ws(ch)                               \
79        (is_lws(ch) || ch == '\n')
80
81/*
82 * Evaluates to non-zero if the argument is a printable ASCII character.
83 * Assumes that the execution character set is a superset of ASCII.
84 */
85#define is_p(ch) \
86        (ch >= '!' && ch <= '~')
87
88/*
89 * Returns non-zero if the argument belongs to the POSIX Portable Filename
90 * Character Set.  Assumes that the execution character set is a superset
91 * of ASCII.
92 */
93#define is_pfcs(ch)                             \
94        (is_digit(ch) || is_letter(ch)  ||      \
95         ch == '.' || ch == '_' || ch == '-')
96
97#endif
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