1/*
2 * Copyright (c) 1987, 1993
3 *	The Regents of the University of California.  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. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *	This product includes software developed by the University of
16 *	California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $Id: strcasecmp.c,v 12.3 2006/10/11 15:31:21 bostic Exp $
34 */
35
36#include "db_config.h"
37
38#include "db_int.h"
39
40/*
41 * strcasecmp --
42 *	Do strcmp(3) in a case-insensitive manner.
43 *
44 * PUBLIC: #ifndef HAVE_STRCASECMP
45 * PUBLIC: int strcasecmp __P((const char *, const char *));
46 * PUBLIC: #endif
47 */
48int
49strcasecmp(s1, s2)
50	const char *s1, *s2;
51{
52	u_char s1ch, s2ch;
53
54	for (;;) {
55		s1ch = *s1++;
56		s2ch = *s2++;
57		if (s1ch >= 'A' && s1ch <= 'Z')		/* tolower() */
58			s1ch += 32;
59		if (s2ch >= 'A' && s2ch <= 'Z')		/* tolower() */
60			s2ch += 32;
61		if (s1ch != s2ch)
62			return (s1ch - s2ch);
63		if (s1ch == '\0')
64			return (0);
65	}
66	/* NOTREACHED */
67}
68
69/*
70 * strncasecmp --
71 *	Do strncmp(3) in a case-insensitive manner.
72 *
73 * PUBLIC: #ifndef HAVE_STRCASECMP
74 * PUBLIC: int strncasecmp __P((const char *, const char *, size_t));
75 * PUBLIC: #endif
76 */
77int
78strncasecmp(s1, s2, n)
79	const char *s1, *s2;
80	register size_t n;
81{
82	u_char s1ch, s2ch;
83
84	for (; n != 0; --n) {
85		s1ch = *s1++;
86		s2ch = *s2++;
87		if (s1ch >= 'A' && s1ch <= 'Z')		/* tolower() */
88			s1ch += 32;
89		if (s2ch >= 'A' && s2ch <= 'Z')		/* tolower() */
90			s2ch += 32;
91		if (s1ch != s2ch)
92			return (s1ch - s2ch);
93		if (s1ch == '\0')
94			return (0);
95	}
96	return (0);
97}
98