LXR darwin-xnu/libsa/strrchr.c

   1/*
   2 * Copyright (c) 2001 Apple Computer, Inc. All rights reserved.
   3 *
   4 * @APPLE_LICENSE_HEADER_START@
   5 * 
   6 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7 * Reserved.  This file contains Original Code and/or Modifications of
   8 * Original Code as defined in and that are subject to the Apple Public
   9 * Source License Version 1.0 (the 'License').  You may not use this file
  10 * except in compliance with the License.  Please obtain a copy of the
  11 * License at http://www.apple.com/publicsource and read it before using
  12 * this file.
  13 * 
  14 * The Original Code and all software distributed under the License are
  15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19 * License for the specific language governing rights and limitations
  20 * under the License."
  21 * 
  22 * @APPLE_LICENSE_HEADER_END@
  23 */
  24/*
  25 * Copyright (c) 1988, 1993
  26 *      The Regents of the University of California.  All rights reserved.
  27 *
  28 * Redistribution and use in source and binary forms, with or without
  29 * modification, are permitted provided that the following conditions
  30 * are met:
  31 * 1. Redistributions of source code must retain the above copyright
  32 *    notice, this list of conditions and the following disclaimer.
  33 * 2. Redistributions in binary form must reproduce the above copyright
  34 *    notice, this list of conditions and the following disclaimer in the
  35 *    documentation and/or other materials provided with the distribution.
  36 * 3. All advertising materials mentioning features or use of this software
  37 *    must display the following acknowledgement:
  38 *      This product includes software developed by the University of
  39 *      California, Berkeley and its contributors.
  40 * 4. Neither the name of the University nor the names of its contributors
  41 *    may be used to endorse or promote products derived from this software
  42 *    without specific prior written permission.
  43 *
  44 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  45 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  47 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  54 * SUCH DAMAGE.
  55 */
  56/*
  57 * History:
  58 *  2001-05-30  gvdl    Duplicated from bsd/libkern/rindex.c
  59 */
  60
  61#if defined(LIBC_SCCS) && !defined(lint)
  62/* static char sccsid[] = "@(#)rindex.c 8.1 (Berkeley) 6/4/93"; */
  63#endif /* LIBC_SCCS and not lint */
  64
  65__private_extern__ char * strrchr(const char *cp, int ch)
  66{
  67    char *save;
  68    char c;
  69
  70    for (save = (char *) 0; (c = *cp); cp++) {
  71        if (c == ch)
  72            save = (char *) cp;
  73    }
  74
  75    return save;
  76}
  77
  78