From 626bfd87a7eadd64b16fb02d547f75d1a8f94aa7 Mon Sep 17 00:00:00 2001
From: "Guillaume J. Charmes" <guillaume.charmes@dotcloud.com>
Date: Thu, 4 Apr 2013 18:13:43 -0700
Subject: [PATCH] Use integers instead of non-printable chars in the escape
 sequence detection

---
 utils.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/utils.go b/utils.go
index 4d87bffc1b..68e12b20bd 100644
--- a/utils.go
+++ b/utils.go
@@ -349,9 +349,11 @@ func CopyEscapable(dst io.Writer, src io.ReadCloser) (written int64, err error)
 		nr, er := src.Read(buf)
 		if nr > 0 {
 			// ---- Docker addition
-			if nr == 1 && buf[0] == '' {
+			// char 16 is C-p
+			if nr == 1 && buf[0] == 16 {
 				nr, er = src.Read(buf)
-				if nr == 1 && buf[0] == '' {
+				// char 17 is C-q
+				if nr == 1 && buf[0] == 17 {
 					if err := src.Close(); err != nil {
 						return 0, err
 					}