strrchr.c revision 127586
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1988, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * Redistribution and use in source and binary forms, with or without 61541Srgrimes * modification, are permitted provided that the following conditions 71541Srgrimes * are met: 81541Srgrimes * 1. Redistributions of source code must retain the above copyright 91541Srgrimes * notice, this list of conditions and the following disclaimer. 101541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111541Srgrimes * notice, this list of conditions and the following disclaimer in the 121541Srgrimes * documentation and/or other materials provided with the distribution. 131541Srgrimes * 3. All advertising materials mentioning features or use of this software 141541Srgrimes * must display the following acknowledgement: 151541Srgrimes * This product includes software developed by the University of 161541Srgrimes * California, Berkeley and its contributors. 171541Srgrimes * 4. Neither the name of the University nor the names of its contributors 181541Srgrimes * may be used to endorse or promote products derived from this software 191541Srgrimes * without specific prior written permission. 201541Srgrimes * 211541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311541Srgrimes * SUCH DAMAGE. 321541Srgrimes */ 331541Srgrimes 34116189Sobrien#include <sys/cdefs.h> 35116189Sobrien__FBSDID("$FreeBSD: head/sys/libkern/rindex.c 127586 2004-03-29 21:15:41Z robert $"); 36116189Sobrien 3753492Speter#include <sys/param.h> 3853492Speter#include <sys/libkern.h> 391541Srgrimes 401541Srgrimeschar * 411541Srgrimesrindex(p, ch) 4254411Speter const char *p; 4353492Speter int ch; 441541Srgrimes{ 4554411Speter union { 4654411Speter const char *cp; 4754411Speter char *p; 4854411Speter } u; 4953492Speter char *save; 501541Srgrimes 5154411Speter u.cp = p; 5254411Speter for (save = NULL;; ++u.p) { 5354411Speter if (*u.p == ch) 5454411Speter save = u.p; 55127586Srobert if (*u.p == '\0') 561541Srgrimes return(save); 571541Srgrimes } 581541Srgrimes /* NOTREACHED */ 591541Srgrimes} 60