lib/path: make sure ul_path_read_buffer() derminate result

Signed-off-by: Karel Zak <kzak@redhat.com>
2019-06-06 11:09:17 +02:00 · 2019-06-06 11:09:17 +02:00 · e3188dd90a
parent 8c8df42146
commit e3188dd90a
1 changed files with 3 additions and 2 deletions
--- a/lib/path.c
+++ b/lib/path.c
@ -610,9 +610,10 @@ int ul_path_read_buffer(struct path_cxt *pc, char *buf, size_t bufsz, const char

 	/* Remove tailing newline (usual in sysfs) */
 	if (rc > 0 && *(buf + rc - 1) == '\n')
-		--rc;
+		buf[--rc] = '\0';
+	else
+		buf[rc - 1] = '\0';

-	buf[rc] = '\0';
 	return rc;
 }