From: Tobias Stoeckmann <tobias@stoeckmann.org>
Date: Sun, 26 Apr 2026 16:11:28 +0000 (+0200)
Subject: mtree: Fix hex parser
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2ce282da019f8bc7e01deeb41088224a9f2cf2b;p=thirdparty%2Flibarchive.git

mtree: Fix hex parser

Digits a-f/A-F need an offset of 10.

Resolves #2975.

Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
---

diff --git a/libarchive/archive_read_support_format_mtree.c b/libarchive/archive_read_support_format_mtree.c
index 4a5a49ca8..97825bb63 100644
--- a/libarchive/archive_read_support_format_mtree.c
+++ b/libarchive/archive_read_support_format_mtree.c
@@ -2029,9 +2029,9 @@ parsedigit(char c)
 	if (c >= '0' && c <= '9')
 		return c - '0';
 	else if (c >= 'a' && c <= 'f')
-		return c - 'a';
+		return 10 + c - 'a';
 	else if (c >= 'A' && c <= 'F')
-		return c - 'A';
+		return 10 + c - 'A';
 	else
 		return -1;
 }