From 277f0f67c5df5c1b023a737548e692ad92831ca3 Mon Sep 17 00:00:00 2001
From: "Nicholas J. Kain" <nicholas@kain.us>
Date: Wed, 27 May 2015 15:00:02 -0400
Subject: [PATCH] When converting timeout from ll to int, also guard against
 underflow.

---
 src/ndhc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ndhc.c b/src/ndhc.c
index f0623e2..bee0b8e 100644
--- a/src/ndhc.c
+++ b/src/ndhc.c
@@ -409,6 +409,7 @@ static void do_ndhc_work(void)
                   arp_wake_ts : cs.dhcp_wake_ts) - nowts;
         }
         if (tt > INT_MAX) tt = INT_MAX;
+        if (tt < INT_MIN) tt = INT_MIN;
         timeout = tt;
         if (timeout < 0)
             timeout = 0;