diff options
Diffstat (limited to 'compat/strcasestr.c')
| -rw-r--r-- | compat/strcasestr.c | 96 |
1 files changed, 53 insertions, 43 deletions
diff --git a/compat/strcasestr.c b/compat/strcasestr.c index 2312733..1238616 100644 --- a/compat/strcasestr.c +++ b/compat/strcasestr.c @@ -1,51 +1,61 @@ -/** -* duser - Manage MajorDomo lists -* Copyright (C) 2011 Joseph Hunkeler <jhunkeler@gmail.com, jhunk@stsci.edu> -* -* This file is part of duser. -* -* duser is free software: you can redistribute it and/or modify -* it under the terms of the GNU General Public License as published by -* the Free Software Foundation, either version 3 of the License, or -* (at your option) any later version. -* -* duser is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. -* -* You should have received a copy of the GNU General Public License -* along with duser. If not, see <http://www.gnu.org/licenses/>. -**/ +/* $OpenBSD: strcasestr.c,v 1.3 2006/03/31 05:34:55 deraadt Exp $ */ +/* $NetBSD: strcasestr.c,v 1.2 2005/02/09 21:35:47 kleink Exp $ */ + +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * 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 University 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 REGENTS 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 REGENTS 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. + */ -#include <stdio.h> -#include <string.h> #include <ctype.h> +#include <string.h> +#include "strcasestr.h" /* - * Locate substring - * - * The strstr() function finds the first occurrence of the substring needle - * in the string haystack. The terminating '\0' characters are not compared. - * - * The strcasestr() function is like strstr(), but ignores the - * case of both arguments. + * Find the first occurrence of find in s, ignore case. */ -char *strcasestr(const char *s, const char *find) +char * +strcasestr(const char *s, const char *find) { - char c, sc; - size_t len; + char c, sc; + size_t len; - if ((c = *find++) != 0) { - c = tolower((unsigned char)c); - len = strlen(find); - do { - do { - if ((sc = *s++) == 0) - return (NULL); - } while ((char)tolower((unsigned char)sc) != c); - } while (strncasecmp(s, find, len) != 0); - s--; - } - return ((char *)s); + if ((c = *find++) != 0) { + c = (char)tolower((unsigned char)c); + len = strlen(find); + do { + do { + if ((sc = *s++) == 0) + return (NULL); + } while ((char)tolower((unsigned char)sc) != c); + } while (strncasecmp(s, find, len) != 0); + s--; + } + return ((char *)s); } |