From b366f54abe581ccab5984ab655f0a3d7a8db764e Mon Sep 17 00:00:00 2001
From: Tim Cooper <tim.cooper@layeh.com>
Date: Tue, 23 Dec 2014 08:45:24 -0400
Subject: [PATCH] increase varint.WriteTo range

---
 gumble/varint/write.go | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/gumble/varint/write.go b/gumble/varint/write.go
index d5f85a8..19c480b 100644
--- a/gumble/varint/write.go
+++ b/gumble/varint/write.go
@@ -11,7 +11,7 @@ import (
 // and nil.
 func WriteTo(w io.Writer, value int64) (int64, error) {
 	var length int
-	var buff [2]byte
+	var buff [4]byte
 	if value <= 0x7F {
 		buff[0] = byte(value)
 		length = 1
@@ -19,6 +19,17 @@ func WriteTo(w io.Writer, value int64) (int64, error) {
 		buff[0] = byte(((value >> 8) & 0x3F) | 0x80)
 		buff[1] = byte(value & 0xFF)
 		length = 2
+	} else if value <= 0x1FFFFF {
+		buff[0] = byte((value >> 16) & 0x1F | 0xC0)
+		buff[1] = byte((value >> 8) & 0xFF)
+		buff[2] = byte(value & 0xFF)
+		length = 3
+	} else if value <= 0xFFFFFFF {
+		buff[0] = byte((value >> 24) & 0xF | 0xE0)
+		buff[1] = byte((value >> 16) & 0xFF)
+		buff[2] = byte((value >> 8) & 0xFF)
+		buff[3] = byte(value & 0xFF)
+		length = 4
 	}
 	if length > 0 {
 		if n, err := w.Write(buff[:length]); err != nil {