ft_strnstr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strnstr.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: uviana-a <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/04/19 18:01:46 by uviana-a          #+#    #+#             */
/*   Updated: 2023/04/19 18:01:47 by uviana-a         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

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

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