From 0c0a426d18e3d1e135de5c86be81b3f73abf208c Mon Sep 17 00:00:00 2001
From: Jack Christensen <jack@jackchristensen.com>
Date: Fri, 15 May 2015 19:21:59 -0500
Subject: [PATCH] Add named error for server refused TLS

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

diff --git a/conn.go b/conn.go
index 03f9abc9..9ac9d184 100644
--- a/conn.go
+++ b/conn.go
@@ -91,6 +91,7 @@ func (ct CommandTag) RowsAffected() int64 {
 var ErrNoRows = errors.New("no rows in result set")
 var ErrNotificationTimeout = errors.New("notification timeout")
 var ErrDeadConn = errors.New("conn is dead")
+var ErrTLSRefused = errors.New("server refused TLS connection")
 
 type ProtocolError string
 
@@ -916,8 +917,7 @@ func (c *Conn) startTLS() (err error) {
 	}
 
 	if response[0] != 'S' {
-		err = errors.New("Could not use TLS")
-		return
+		return ErrTLSRefused
 	}
 
 	c.conn = tls.Client(c.conn, c.config.TLSConfig)