1  /* ************************************************************************** */
 2  /*                                                                            */
 3  /*                                                        :::      ::::::::   */
 4  /*   ft_strnstr.c                                       :+:      :+:    :+:   */
 5  /*                                                    +:+ +:+         +:+     */
 6  /*   By: ll-hotel <ll-hotel@student.42lyon.fr>      +#+  +:+       +#+        */
 7  /*                                                +#+#+#+#+#+   +#+           */
 8  /*   Created: 2023/11/07 16:02:29 by ll-hotel          #+#    #+#             */
 9  /*   Updated: 2024/02/23 03:42:52 by ll-hotel         ###   ########.fr       */
10  /*                                                                            */
11  /* ************************************************************************** */
12  
13  char	*ft_strnstr(const char *big, const char *little, unsigned long long len)
14  {
15  	unsigned long long	i;
16  	unsigned long long	j;
17  	unsigned long long	lenlil;
18  
19  	if (*little == 0)
20  		return ((char *)big);
21  	lenlil = 0;
22  	while (big && little[lenlil])
23  		lenlil++;
24  	if (len < lenlil)
25  		return (0);
26  	i = 0;
27  	while (big[i] && i < len - lenlil + 1)
28  	{
29  		j = 0;
30  		while (i + j < len && little[j] && big[i + j] == little[j])
31  			j++;
32  		if (little[j] == 0)
33  			return ((char *)(big + i));
34  		i += j + big[i] != 0;
35  	}
36  	return (0);
37  }