ft_strnstr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strnstr.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: peduardo < peduardo@student.42sp.org.br    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2021/08/09 21:14:23 by peduardo          #+#    #+#             */
/*   Updated: 2021/08/09 21:14:25 by peduardo         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strnstr(const char *haystack, const char *needle, size_t len)
{
	size_t	i;
	size_t	j;

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

// giving me segfault when searching for something that is after len