svn commit: r256137 - head/sbin/route

[Gleb Smirnoff]

Author: glebius
Date: Tue Oct  8 08:16:17 2013
New Revision: 256137
URL: http://svnweb.freebsd.org/changeset/base/256137

Log:
    When destination parameter is missing, exit with a clear synopsis,
  instead of writing to kernel and printing EINVAL description.
  
  PR:		bin/181532
  Submitted by:	Kurt Jaeger <fbsd-pr opsec.eu>
  Approved by:	re (hrs)

Modified:
  head/sbin/route/route.c

Modified: head/sbin/route/route.c
==============================================================================
--- head/sbin/route/route.c	Tue Oct  8 07:02:23 2013	(r256136)
+++ head/sbin/route/route.c	Tue Oct  8 08:16:17 2013	(r256137)
@@ -928,6 +928,11 @@ newroute(int argc, char **argv)
 		}
 	}
 
+	if (so[RTAX_DST].ss_len == 0) {
+		warnx("destination parameter required");
+		usage(NULL);
+	}
+
 	if (nrflags & F_FORCEHOST) {
 		nrflags |= F_ISHOST;
 #ifdef INET6