From 579e84e18f191faeb324c59a10fb2d0ed2c7e374 Mon Sep 17 00:00:00 2001
From: Jan Vcelak <jan.vcelak@nic.cz>
Date: Fri, 28 Jun 2013 15:10:56 +0200
Subject: [PATCH] knot_dname_new_from_nonfqdn_str(): do not crash when input
length is zero
---
src/libknot/dname.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/libknot/dname.c b/src/libknot/dname.c
index 754efe485e..4a0e7b75c7 100644
--- a/src/libknot/dname.c
+++ b/src/libknot/dname.c
@@ -434,7 +434,7 @@ knot_dname_t *knot_dname_new_from_nonfqdn_str(const char *name, uint size,
{
knot_dname_t *dname = NULL;
- if (name[size - 1] != '.') {
+ if (size == 0 || name[size - 1] != '.') {
char *fqdn = strcdup(name, ".");
dname = knot_dname_new_from_str(fqdn, size + 1, node);
free(fqdn);
--
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