/* ************************************************************************** */
/*                                                          LE - /            */
/*                                                              /             */
/*   ft_strnstr.c                                     .::    .:/ .      .::   */
/*                                                 +:+:+   +:    +:  +:+:+    */
/*   By: rbousset <marvin@le-101.fr>                +:+   +:    +:    +:+     */
/*                                                 #+#   #+    #+    #+#      */
/*   Created: 2019/10/10 00:23:15 by rbousset     #+#   ##    ##    #+#       */
/*   Updated: 2019/10/13 08:34:35 by rbousset    ###    #+. /#+    ###.fr     */
/*                                                         /                  */
/*                                                        /                   */
/* ************************************************************************** */

#include <libft.h>
#include <stddef.h>
#include <inttypes.h>

char
	*ft_strnstr(const char *haystack, const char *needle, size_t len)
{
	unsigned long	i;
	unsigned long	j;
	char			*hay_ptr;
	char			*nee_ptr;

	hay_ptr = (char*)haystack;
	nee_ptr = (char*)needle;
	i = 0;
	if (!nee_ptr[0])
		return (hay_ptr);
	while (hay_ptr[i] && i < len)
	{
		j = 0;
		while (nee_ptr[j] == hay_ptr[i + j] && (i + j) < len)
		{
			if (!nee_ptr[j + 1])
				return (hay_ptr + i);
			j++;
		}
		if (!hay_ptr[i + 1] && !j)
			return (0);
		i++;
	}
	return (0);
}