#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include "word.h"

/**
 * strlcpy - Word sized bsd strlcpy.
 * @d: Destination
 * @s: Source
 * @n: Max @s
 */
size_t strlcpy(char *d, const char *s, size_t n)
{
	char *z = d;
	size_t *wd;
	const size_t *ws;

	/* A byte for nul */
	if (!n--) goto terminate;

	if ((uintptr_t)d % sizeof(size_t) != (uintptr_t)s % sizeof(size_t))
		goto misaligned;

	for (; (uintptr_t)s % sizeof(size_t); *d++ = *s++, n--)
		if (!*s || !n) goto terminate;

	for (wd = (size_t *)d, ws= (const size_t *)s
	     ; !word_has_zero(*ws) && n >= sizeof(size_t)
	     ; *wd = *ws, wd++, ws++, n -= sizeof(size_t))

	d = (char *)wd;
	s = (const char *)ws;

misaligned:
	for (; (*d = *s) && n; d++, s++, n--);
terminate:
	*d = '\0';

	return d - z + strlen(s);
}