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