From e50dcca5e8adc126ca81c5d2a494d089879eb68c Mon Sep 17 00:00:00 2001
From: Tanguy MAZE <tmaze@student.42.fr>
Date: Thu, 5 Apr 2018 11:48:44 +0200
Subject: [PATCH] ft_strnstr

---
 Makefile     |  3 ++-
 ft_strnstr.c | 33 +++++++++++++++++++++++++++++++++
 libft.h      |  4 ++--
 3 files changed, 37 insertions(+), 3 deletions(-)
 create mode 100644 ft_strnstr.c

diff --git a/Makefile b/Makefile
index 4e68d96..b0ffb20 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@
 #    By: tmaze <marvin@42.fr>                       +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2018/04/04 10:51:59 by tmaze             #+#    #+#              #
-#    Updated: 2018/04/05 11:06:04 by tmaze            ###   ########.fr        #
+#    Updated: 2018/04/05 11:40:07 by tmaze            ###   ########.fr        #
 #                                                                              #
 #******************************************************************************#
 
@@ -26,6 +26,7 @@ SRCS =	\
 		ft_strchr.c  \
 		ft_strrchr.c \
 		ft_strstr.c  \
+		ft_strnstr.c \
 		ft_isalpha.c \
 		ft_isdigit.c \
 		ft_isalnum.c \
diff --git a/ft_strnstr.c b/ft_strnstr.c
new file mode 100644
index 0000000..d88f800
--- /dev/null
+++ b/ft_strnstr.c
@@ -0,0 +1,33 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strnstr.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: tmaze <marvin@42.fr>                       +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2018/04/05 11:35:03 by tmaze             #+#    #+#             */
+/*   Updated: 2018/04/05 11:47:18 by tmaze            ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+char	*ft_strnstr(const char *haystack, const char *needle, size_t len)
+{
+	int		i;
+	int		j;
+	char	*tmp;
+
+	i = -1;
+	tmp = (char*)haystack;
+	while ((++i == 0 || tmp[i - 1]) && i < (int)len)
+		if (tmp[i] == needle[0] && (j = 1))
+		{
+			while (tmp[i + j] == needle[j] && needle[j] && tmp[i + j]\
+					&& (i + j) < (int)len)
+				j++;
+			if (needle[j] == '\0')
+				return (&tmp[i]);
+		}
+	return (NULL);
+}
diff --git a/libft.h b/libft.h
index e61678c..f403b25 100644
--- a/libft.h
+++ b/libft.h
@@ -6,7 +6,7 @@
 /*   By: tmaze <marvin@42.fr>                       +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2018/04/04 10:40:01 by tmaze             #+#    #+#             */
-/*   Updated: 2018/04/04 18:08:25 by tmaze            ###   ########.fr       */
+/*   Updated: 2018/04/05 11:39:51 by tmaze            ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -37,7 +37,7 @@ size_t	ft_strlcat(char *dst, const char *src, size_t size);
 char	*ft_strchr(const char *s, int c);
 char	*ft_strrchr(const char *s, int c);
 char	*ft_strstr(const char *haystack, const char *needle);
-char	*ft_strnstr(const char *haystack, const char *needle, size_t n);
+char	*ft_strnstr(const char *haystack, const char *needle, size_t len);
 int		ft_strcmp(const char *s1, const char *s2);
 int		ft_strncmp(const char *s1, const char *s2);
 int		ft_atoi(const char *nptr);