From: Lukáš Jiřiště <jiriste@icpf.cas.cz>
Date: Mon, 26 Aug 2024 14:16:51 +0000 (+0200)
Subject: Fix tokenization double free
X-Git-Url: https://git.ljiriste.work/?a=commitdiff_plain;h=374f3c8f838ad2ff7e79ec25097f4bafd42ccfe4;p=42%2Fminishell.git

Fix tokenization double free

When an unclosed quotes are detected, tokenization fails. This causes
double free because the current_token is appended to tokens (because
current_token.size > 0) and is freed 4 lines below. The double free
happens when the tokens vector frees its memory.
---

diff --git a/src/tokenization.c b/src/tokenization.c
index 679dbd5..befbd28 100644
--- a/src/tokenization.c
+++ b/src/tokenization.c
@@ -6,7 +6,7 @@
 /*   By: ljiriste <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2024/06/21 16:34:43 by ljiriste          #+#    #+#             */
-/*   Updated: 2024/08/26 12:07:29 by ljiriste         ###   ########.fr       */
+/*   Updated: 2024/08/26 16:16:11 by ljiriste         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -296,7 +296,7 @@ int	tokenize(char **line, t_vec *tokens)
 		else
 			res = ft_vec_append(&current_token, line[0] + (i++)) != success;
 	}
-	if (current_token.size > 0)
+	if (current_token.size > 0 && !res)
 	{
 		ft_vec_append(&current_token, "");
 		token.type = (char *)get_token_type(current_token.vec, '\0');