From: Lukas Jiriste <ljiriste@student.42prague.com>
Date: Thu, 1 Aug 2024 10:03:40 +0000 (+0200)
Subject: Fix invalid read in ft_split
X-Git-Url: https://git.ljiriste.work/?a=commitdiff_plain;h=61db70482c4aa1f7f3959148cd219c130dc63e91;p=Libft.git

Fix invalid read in ft_split

This read happens when the last word ends with the terminating '\0'.
After advancing the index to the '\0' it is then increased once more to
regions not accessible. This is fixed by simple skipping the ++i after a
word has been processed.
---

diff --git a/ft_str/ft_split.c b/ft_str/ft_split.c
index a9bd121..641ca25 100644
--- a/ft_str/ft_split.c
+++ b/ft_str/ft_split.c
@@ -6,7 +6,7 @@
 /*   By: ljiriste <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/06/20 11:51:05 by ljiriste          #+#    #+#             */
-/*   Updated: 2024/07/21 18:53:26 by ljiriste         ###   ########.fr       */
+/*   Updated: 2024/08/01 11:56:05 by ljiriste         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -75,7 +75,8 @@ char	**ft_split(const char *str, const char *seps)
 			res[str_num++] = extract_substr(&str[i], seps);
 			i += substr_len(&str[i], seps);
 		}
-		++i;
+		else
+			++i;
 	}
 	res[str_num] = NULL;
 	return (res);