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Diffstat (limited to '')
| -rw-r--r-- | openbsd-compat/strcasestr.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/openbsd-compat/strcasestr.c b/openbsd-compat/strcasestr.c new file mode 100644 index 0000000..4c4d147 --- /dev/null +++ b/openbsd-compat/strcasestr.c @@ -0,0 +1,69 @@ +/* $OpenBSD: strcasestr.c,v 1.4 2015/08/31 02:53:57 guenther 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. + */ + +/* OPENBSD ORIGINAL: lib/libc/string/strcasestr.c */ + +#include "includes.h" + +#ifndef HAVE_STRCASESTR + +#include <ctype.h> +#include <string.h> + +/* + * Find the first occurrence of find in s, ignore case. + */ +char * +strcasestr(const char *s, const char *find) +{ + char c, sc; + size_t len; + + 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); +} +DEF_WEAK(strcasestr); + +#endif |