From 4e3dcd762ccd898019720be67793bda9ea56fdb4 Mon Sep 17 00:00:00 2001
From: Pedro Pombeiro <pombeirp@users.noreply.github.com>
Date: Fri, 15 Jun 2018 14:45:42 +0200
Subject: [PATCH] whisper: Fix interpretation of `to` parameter in
 `shh_requestMessages`

- The argument is inclusive rather than exclusive, according to docs.
---
 whisper/mailserver/mailserver.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/whisper/mailserver/mailserver.go b/whisper/mailserver/mailserver.go
index d32eaddec3..af9418d9f8 100644
--- a/whisper/mailserver/mailserver.go
+++ b/whisper/mailserver/mailserver.go
@@ -118,7 +118,7 @@ func (s *WMailServer) processRequest(peer *whisper.Peer, lower, upper uint32, bl
 	var err error
 	var zero common.Hash
 	kl := NewDbKey(lower, zero)
-	ku := NewDbKey(upper, zero)
+	ku := NewDbKey(upper+1, zero) // LevelDB is exclusive, while the Whisper API is inclusive
 	i := s.db.NewIterator(&util.Range{Start: kl.raw, Limit: ku.raw}, nil)
 	defer i.Release()