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arc4random.c
(6.91 KB)
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arc4random_uniform.c
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arm
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arm64
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ashldi3.c
(2.43 KB)
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ashrdi3.c
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asprintf.c
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bcd.c
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bcmp.c
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bcopy.c
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bsearch.c
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cmpdi2.c
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divdi3.c
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explicit_bzero.c
(512 B)
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ffs.c
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ffsl.c
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ffsll.c
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fls.c
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flsl.c
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flsll.c
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fnmatch.c
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gsb_crc32.c
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iconv.c
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iconv_converter_if.m
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iconv_ucs.c
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iconv_xlat.c
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iconv_xlat16.c
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inet_aton.c
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inet_ntoa.c
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inet_ntop.c
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inet_pton.c
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jenkins_hash.c
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lshrdi3.c
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mcount.c
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memcchr.c
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memchr.c
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memcmp.c
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memmem.c
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memset.c
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moddi3.c
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murmur3_32.c
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qdivrem.c
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qsort.c
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qsort_r.c
(156 B)
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quad.h
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random.c
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scanc.c
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strcasecmp.c
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strcasestr.c
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strcat.c
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strchr.c
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strchrnul.c
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strcmp.c
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strcpy.c
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strcspn.c
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strdup.c
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strlcat.c
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strlcpy.c
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strlen.c
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strncat.c
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strncmp.c
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strncpy.c
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strndup.c
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strnlen.c
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strrchr.c
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strsep.c
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strspn.c
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strstr.c
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strtol.c
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strtoq.c
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strtoul.c
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strtouq.c
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strvalid.c
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timingsafe_bcmp.c
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ucmpdi2.c
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udivdi3.c
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umoddi3.c
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x86
Editing: memmem.c
/*- * Copyright (c) 2005 Pascal Gloor <pascal.gloor@spale.com> * * 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. The name of the author may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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/libkern.h> #include <sys/param.h> void * memmem(const void *l, size_t l_len, const void *s, size_t s_len) { char *cur, *last; const char *cl = (const char *)l; const char *cs = (const char *)s; /* we need something to compare */ if (l_len == 0 || s_len == 0) return NULL; /* "s" must be smaller or equal to "l" */ if (l_len < s_len) return NULL; /* special case where s_len == 1 */ if (s_len == 1) return memchr(l, (int)*cs, l_len); /* the last position where its possible to find "s" in "l" */ last = __DECONST(char *, cl) + l_len - s_len; for (cur = __DECONST(char *, cl); cur <= last; cur++) if (cur[0] == cs[0] && memcmp(cur, cs, s_len) == 0) return cur; return NULL; }
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