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/*
* Copyright (c) 2023 Marc Pervaz Boocha
*
* SPDX-License-Identifier: MIT
*/
#include <mem.h>
void *calt_memmem(void const *haystack, size_t haystacklen,
void const *needle, size_t needlelen) {
unsigned char const *p = haystack;
unsigned char const *end = p + haystacklen - needlelen;
while (p <= end) {
if (calt_memcmp(p, needle, needlelen) == 0) {
return (void *)p;
}
p++;
}
return NULL;
}
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