From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Sat, 14 Mar 2015 02:21:58 +0000 (-0500)
Subject: test-dhcp-option: add assert to check index is nonnegative
X-Git-Tag: v219.0~328
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=0915fda60a12139db3d246da0c3d16c9ba127b4e;p=elogind.git

test-dhcp-option: add assert to check index is nonnegative

CID #1237623.
---

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: