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/*
* Copyright (C) 1996-2026 The Squid Software Foundation and contributors
*
* Squid software is distributed under GPLv2+ license and includes
* contributions from numerous individuals and organizations.
* Please see the COPYING and CONTRIBUTORS files for details.
*/
/*
* Copyright (c) 2007 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "squid.h"
#if !HAVE_MEMRCHR
#include "compat/memrchr.h"
/*
* Reverse memchr()
* Find the last occurrence of 'c' in the buffer 's' of size 'n'.
*/
void *
memrchr(const void *s, int c, size_t n)
{
const unsigned char *cp;
if (n != 0) {
cp = (unsigned char *)s + n;
do {
if (*(--cp) == (unsigned char)c)
return((void *)cp);
} while (--n != 0);
}
return((void *)0);
}
#endif
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