source: openpam/trunk/lib/openpam_strlcmp.h @ 594

Last change on this file since 594 was 578, checked in by Dag-Erling Smørgrav, 9 years ago

As previously mentioned, move from 2-clause BSD to 3-clause BSD.

  • Property svn:keywords set to Id
File size: 1.9 KB
Line 
1/*-
2 * Copyright (c) 2011 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 *    in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote
15 *    products derived from this software without specific prior written
16 *    permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $Id: openpam_strlcmp.h 578 2012-04-06 00:45:59Z des $
31 */
32
33#ifndef OPENPAM_STRLCMP_H_INCLUDED
34#define OPENPAM_STRLCMP_H_INCLUDED
35
36#ifndef HAVE_STRLCMP
37/* like strcmp(3), but verifies that the entirety of s1 was matched */
38static int
39strlcmp(const char *s1, const char *s2, size_t len)
40{
41
42        for (; len && *s1 && *s2; --len, ++s1, ++s2)
43                if (*s1 != *s2)
44                        return ((unsigned char)*s1 - (unsigned char)*s2);
45        return ((unsigned char)*s1);
46}
47#endif
48
49#endif
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