guix/gnu/packages/patches/libarchive-mtree-filename-length-fix.patch

Description: Patch to fix filename length calculation when writing mtree archives.
Author: Dave Reisner <dreisner@archlinux.org>
Origin: upstream

--- a/libarchive/archive_write_set_format_mtree.c
+++ b/libarchive/archive_write_set_format_mtree.c
@@ -1855,9 +1855,9 @@
 		return (ret);
 	}
 
-	/* Make a basename from dirname and slash */
+	/* Make a basename from file->parentdir.s and slash */
 	*slash  = '\0';
-	file->parentdir.length = slash - dirname;
+	file->parentdir.length = slash - file->parentdir.s;
 	archive_strcpy(&(file->basename),  slash + 1);
 	return (ret);
 }