From 0915fda60a12139db3d246da0c3d16c9ba127b4e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Fri, 13 Mar 2015 21:21:58 -0500
Subject: [PATCH] test-dhcp-option: add assert to check index is nonnegative

CID #1237623.
---
 src/libsystemd-network/test-dhcp-option.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/libsystemd-network/test-dhcp-option.c b/src/libsystemd-network/test-dhcp-option.c
index 6062a37da..bd448ff2b 100644
--- a/src/libsystemd-network/test-dhcp-option.c
+++ b/src/libsystemd-network/test-dhcp-option.c
@@ -130,6 +130,8 @@ static DHCPMessage *create_message(uint8_t *options, uint16_t optlen,
 
 static void test_ignore_opts(uint8_t *descoption, int *descpos, int *desclen)
 {
+        assert(*descpos >= 0);
+
         while (*descpos < *desclen) {
                 switch(descoption[*descpos]) {
                 case DHCP_OPTION_PAD:
-- 
2.30.2