2 * Copyright (c) 2006 M. Warner Losh. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 /******************************************************************************
31 * Filename: p_string.c
33 * Instantiation of basic string operations to prevent inclusion of full
34 * string library. These are simple implementations not necessarily optimized
35 * for speed, but rather to show intent.
37 * Revision information:
39 * 20AUG2004 kb_admin initial creation
40 * 12JAN2005 kb_admin minor updates
43 * No warranty, expressed or implied, is included with this software. It is
44 * provided "AS IS" and no warranty of any kind including statutory or aspects
45 * relating to merchantability or fitness for any purpose is provided. All
46 * intellectual property rights of others is maintained with the respective
47 * owners. This software is not copyrighted and is intended for reference
50 *****************************************************************************/
55 * .KB_C_FN_DEFINITION_START
56 * int p_IsWhiteSpace(char)
57 * This global function returns true if the character is not considered
58 * a non-space character.
59 * .KB_C_FN_DEFINITION_END
62 p_IsWhiteSpace(char cValue)
64 return ((cValue == ' ') ||
73 * .KB_C_FN_DEFINITION_START
74 * unsigned p_HexCharValue(char)
75 * This global function returns the decimal value of the validated hex char.
76 * .KB_C_FN_DEFINITION_END
79 p_HexCharValue(char cValue)
81 if (cValue < ('9' + 1))
82 return (cValue - '0');
83 if (cValue < ('F' + 1))
84 return (cValue - 'A' + 10);
85 return (cValue - 'a' + 10);
89 * .KB_C_FN_DEFINITION_START
90 * unsigned p_ASCIIToHex(char *)
91 * This global function set the unsigned value equal to the converted
92 * hex number passed as a string. No error checking is performed; the
93 * string must be valid hex value, point at the start of string, and be
95 * .KB_C_FN_DEFINITION_END
98 p_ASCIIToHex(const char *buf)
102 if ((*buf == '0') && ((buf[1] == 'x') || (buf[1] == 'X')))
107 lValue += p_HexCharValue(*buf++);
114 * .KB_C_FN_DEFINITION_START
115 * unsigned p_ASCIIToDec(char *)
116 * This global function set the unsigned value equal to the converted
117 * decimal number passed as a string. No error checking is performed; the
118 * string must be valid decimal value, point at the start of string, and be
120 * .KB_C_FN_DEFINITION_END
123 p_ASCIIToDec(const char *buf)