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git.ipfire.org Git - thirdparty/squid.git/blob - compat/strnstr.cc
2 * Copyright (C) 1996-2014 The Squid Software Foundation and contributors
4 * Squid software is distributed under GPLv2+ license and includes
5 * contributions from numerous individuals and organizations.
6 * Please see the COPYING and CONTRIBUTORS files for details.
9 #ifndef SQUID_COMPAT_STRNSTR_CC_
10 #define SQUID_COMPAT_STRNSTR_CC_
13 * Shamelessly duplicated from the FreeBSD public sources
14 * for use by the Squid Project under GNU Public License.
16 * Update/Maintenance History:
18 * 26-Apr-2008 : Copied from FreeBSD via OpenGrok
19 * - added protection around libray headers
20 * - added squid_ prefix for uniqueness
21 * so we can use it where OS copy is broken.
23 * Original License and code follows.
31 * Copyright (c) 2001 Mike Barcroft <mike@FreeBSD.org>
32 * Copyright (c) 1990, 1993
33 * The Regents of the University of California. All rights reserved.
35 * This code is derived from software contributed to Berkeley by
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. Neither the name of the University nor the names of its contributors
47 * may be used to endorse or promote products derived from this software
48 * without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * @(#)strstr.c 8.1 (Berkeley) 6/4/93
63 * $FreeBSD: src/lib/libc/string/strnstr.c,v 1.2.2.1 2001/12/09 06:50:03 mike Exp $
64 * $DragonFly: src/lib/libc/string/strnstr.c,v 1.4 2006/03/20 17:24:20 dillon Exp $
68 #include <sys/types.h>
73 * Find the first occurrence of find in s, where the search is limited to the
74 * first slen characters of s.
77 squid_strnstr(const char *s
, const char *find
, size_t slen
)
82 if ((c
= *find
++) != '\0') {
86 if (slen
< 1 || (sc
= *s
) == '\0')
93 } while (strncmp(s
, find
, len
) != 0);
99 #endif /* !HAVE_STRNSTR */
100 #endif /* SQUID_COMPAT_STRNSTR_CC_ */