| // SPDX-License-Identifier: BSD-3-Clause |
| /* |
| * Copyright (c) 1994-2009 Red Hat, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * |
| * 3. Neither the name of the copyright holder nor the names of its |
| * contributors may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /* |
| FUNCTION |
| <<strrchr>>---reverse search for character in string |
| |
| INDEX |
| strrchr |
| |
| ANSI_SYNOPSIS |
| #include <string.h> |
| char * strrchr(const char *<[string]>, int <[c]>); |
| |
| TRAD_SYNOPSIS |
| #include <string.h> |
| char * strrchr(<[string]>, <[c]>); |
| char *<[string]>; |
| int *<[c]>; |
| |
| DESCRIPTION |
| This function finds the last occurence of <[c]> (converted to |
| a char) in the string pointed to by <[string]> (including the |
| terminating null character). |
| |
| RETURNS |
| Returns a pointer to the located character, or a null pointer |
| if <[c]> does not occur in <[string]>. |
| |
| PORTABILITY |
| <<strrchr>> is ANSI C. |
| |
| <<strrchr>> requires no supporting OS subroutines. |
| |
| QUICKREF |
| strrchr ansi pure |
| */ |
| #include "_ansi.h" |
| #include <string.h> |
| |
| char * |
| _DEFUN (strrchr, (s, i), |
| _CONST char *s _AND |
| int i) |
| { |
| _CONST char *last = NULL; |
| |
| if (i) |
| { |
| while ((s=strchr(s, i))) |
| { |
| last = s; |
| s++; |
| } |
| } |
| else |
| { |
| last = strchr(s, i); |
| } |
| |
| return (char *) last; |
| } |