From 182608e23629781698756aaf36c1db4ba888626f Mon Sep 17 00:00:00 2001
From: Thomas Graf <tgr@lsx.localdomain>
Date: Wed, 30 Apr 2008 18:50:52 +0200
Subject: [PATCH] Fix segfault nexthop parsing when no option is given

---
 src/route-utils.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/route-utils.c b/src/route-utils.c
index 61bc9cd..7f73a41 100644
--- a/src/route-utils.c
+++ b/src/route-utils.c
@@ -134,6 +134,10 @@ void parse_nexthop(struct rtnl_route *route, char *subopts,
 		if (ret == -1)
 			fatal(EINVAL, "Unknown nexthop token \"%s\"", arg);
 
+		if (arg == NULL)
+			fatal(EINVAL, "Missing argument to option \"%s\"\n",
+				tokens[ret]);
+
 		switch (ret) {
 		case NH_DEV:
 			ival = rtnl_link_name2i(link_cache, arg);