Function l_memmem

ut.h:1560–1585

* l_memmem() returns the location of the first occurrence of data * pattern b2 of size len2 in memory block b1 of size len1 or * NULL if none is found. Obtained from NetBSD. */

 * NULL if none is found. Obtained from NetBSD.
 */
static inline void * l_memmem(const void *b1, const void *b2,
													size_t len1, size_t len2)
{
	/* Initialize search pointer */
	char *sp = (char *) b1;

	/* Initialize pattern pointer */
	char *pp = (char *) b2;

	/* Initialize end of search address space pointer */
	char *eos = sp + len1 - len2;

	/* Sanity check */
	if(!(b1 && b2 && len1 && len2))
		return NULL;

	while (sp <= eos) {
		if (*sp == *pp)
			if (memcmp(sp, pp, len2) == 0)
				return sp;

		sp++;
	}

	return NULL;
}

/**
 * Make any database URL log-friendly by masking its password, if any