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📄 iconv_xlat.c(3.39 KB)
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📄 inet_aton.c(3.41 KB)
📄 inet_ntoa.c(1.8 KB)
📄 inet_ntop.c(4.94 KB)
📄 inet_pton.c(5.21 KB)
📄 jenkins_hash.c(16.09 KB)
📄 lshrdi3.c(2.24 KB)
📄 mcount.c(8.52 KB)
📄 memcchr.c(3.27 KB)
📄 memchr.c(1.99 KB)
📄 memcmp.c(2 KB)
📄 memmem.c(2.39 KB)
📄 memset.c(1.61 KB)
📄 moddi3.c(2.22 KB)
📄 murmur3_32.c(3.4 KB)
📄 qdivrem.c(7.47 KB)
📄 qsort.c(5.95 KB)
📄 qsort_r.c(156 B)
📄 quad.h(4.16 KB)
📄 random.c(1.92 KB)
📄 scanc.c(1.93 KB)
📄 strcasecmp.c(2.52 KB)
📄 strcasestr.c(2.4 KB)
📄 strcat.c(1.83 KB)
📄 strchr.c(1.88 KB)
📄 strchrnul.c(1.57 KB)
📄 strcmp.c(1.96 KB)
📄 strcpy.c(1.82 KB)
📄 strcspn.c(2.36 KB)
📄 strdup.c(2.15 KB)
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📄 strlcpy.c(1.64 KB)
📄 strlen.c(3.77 KB)
📄 strncat.c(2.23 KB)
📄 strncmp.c(1.92 KB)
📄 strncpy.c(2.15 KB)
📄 strndup.c(1.98 KB)
📄 strnlen.c(1.61 KB)
📄 strrchr.c(1.89 KB)
📄 strsep.c(2.63 KB)
📄 strspn.c(2.32 KB)
📄 strstr.c(2.11 KB)
📄 strtol.c(4.06 KB)
📄 strtoq.c(4.09 KB)
📄 strtoul.c(3.13 KB)
📄 strtouq.c(3.08 KB)
📄 strvalid.c(2.04 KB)
📄 timingsafe_bcmp.c(1.08 KB)
📄 ucmpdi2.c(2.32 KB)
📄 udivdi3.c(1.97 KB)
📄 umoddi3.c(2 KB)
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Editing: strcasestr.c

/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * 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.
 *
 * Copyright (c) 2011 The FreeBSD Foundation
 * All rights reserved.
 * Portions of this software were developed by David Chisnall
 * under sponsorship from the FreeBSD Foundation.
 *
 * 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <sys/param.h>
#include <sys/ctype.h>
#include <sys/libkern.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 = 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 (__DECONST(char *, s));
}

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