ft_strnstr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strnstr.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mulisses <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/10/29 18:24:23 by mulisses          #+#    #+#             */
/*   Updated: 2021/10/29 18:24:24 by mulisses         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strnstr(const char *big, const char *little, size_t len)
{
	size_t	i;
	size_t	j;

	i = 0;
	if (little[0] == '\0')
	{
		return ((char *) big);
	}
	while (big[i] != '\0' && i < len)
	{
		j = 0;
		while ((big[i + j] == little[j]) && (i + j) < len)
		{
			if (little[j + 1] == '\0')
			{
				return ((char *)&big[i]);
			}
			j++;
		}
		i++;
	}
	return (NULL);
}