From 647bedd5dad0e867ce8a62d6ec3951631746fab2 Mon Sep 17 00:00:00 2001
From: Don Lewis <truckman@FreeBSD.org>
Date: Mon, 16 May 2016 23:47:08 +0000
Subject: [PATCH] Don't walk off the end of the array when proto isn't
 explicitly listed above.  Instead update the catch-all "Others" bucket.

Reported by:	Coverity
CID:		1007571, 1007572
MFC after:	1 week
---
 usr.sbin/ppp/link.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/usr.sbin/ppp/link.c b/usr.sbin/ppp/link.c
index dc5507d7278d..f802b9595a5b 100644
--- a/usr.sbin/ppp/link.c
+++ b/usr.sbin/ppp/link.c
@@ -209,7 +209,7 @@ static struct protostatheader {
   { PROTO_LQR, "LQR" },
   { PROTO_CHAP, "CHAP" },
   { PROTO_MP, "MULTILINK" },
-  { 0, "Others" }
+  { 0, "Others" }	/* must be last */
 };
 
 void
@@ -218,13 +218,13 @@ link_ProtocolRecord(struct link *l, u_short proto, int type)
   int i;
 
   for (i = 0; i < NPROTOSTAT; i++)
-    if (ProtocolStat[i].number == proto)
+    if (ProtocolStat[i].number == proto || ProtocolStat[i].number == 0) {
+      if (type == PROTO_IN)
+        l->proto_in[i]++;
+      else
+        l->proto_out[i]++;
       break;
-
-  if (type == PROTO_IN)
-    l->proto_in[i]++;
-  else
-    l->proto_out[i]++;
+    }
 }
 
 void