From 411d9f0b9c65bfe44d0200a466972ecb9ed5cf00 Mon Sep 17 00:00:00 2001
From: cheatfate <eugene.kabanov@status.im>
Date: Thu, 28 Feb 2019 22:29:03 +0200
Subject: [PATCH] Fix protobuf's do not check error value.

---
 libp2p/protobuf/minprotobuf.nim | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/libp2p/protobuf/minprotobuf.nim b/libp2p/protobuf/minprotobuf.nim
index 14d008d..5cf5b45 100644
--- a/libp2p/protobuf/minprotobuf.nim
+++ b/libp2p/protobuf/minprotobuf.nim
@@ -203,9 +203,10 @@ proc getVarintValue*(data: var ProtoBuffer, field: int,
           let res = getSVarint(data.toOpenArray(), length, value)
         else:
           let res = PB.getUVarint(data.toOpenArray(), length, value)
-        data.offset += length
-        result = length
-        return
+        if res == VarintStatus.Success:
+          data.offset += length
+          result = length
+          return
   # Restore offset on error
   data.offset = soffset