From 76ff440ebe76ff516bf44ee1e110d1836783de0a Mon Sep 17 00:00:00 2001
From: Simon Kelley <simon@thekelleys.org.uk>
Date: Tue, 17 Dec 2013 16:29:14 +0000
Subject: [PATCH] Ignore ",," in dhcp-host, rather than treating it as ",0,"

---
 src/option.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/option.c b/src/option.c
index 06031d8..8716208 100644
--- a/src/option.c
+++ b/src/option.c
@@ -2732,7 +2732,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 	  else
 	    {
 	      char *cp, *lastp = NULL, last = 0;
-	      int fac = 1;
+	      int fac = 1, isdig = 0;
 	      
 	      if (strlen(a[j]) > 1)
 		{
@@ -2763,9 +2763,11 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 		}
 	      
 	      for (cp = a[j]; *cp; cp++)
-		if (!isdigit((unsigned char)*cp) && *cp != ' ')
+		if (isdigit((unsigned char)*cp))
+		  isdig = 1;
+		else if (*cp != ' ')
 		  break;
-	      
+
 	      if (*cp)
 		{
 		  if (lastp)
@@ -2787,7 +2789,7 @@ static int one_opt(int option, char *arg, char *errstr, char *gen_err, int comma
 		      new->domain = strip_hostname(new->hostname);			
 		    }
 		}
-	      else
+	      else if (isdig)
 		{
 		  new->lease_time = atoi(a[j]) * fac; 
 		  /* Leases of a minute or less confuse