From c789659d8770f30ee5d06168b22d7d61d68b40b5 Mon Sep 17 00:00:00 2001
From: Srdjan Bozovic <srbozovi@microsoft.com>
Date: Sat, 15 Jul 2023 20:59:04 +0200
Subject: [PATCH] fix: protocol version

---
 tds.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tds.go b/tds.go
index 2fae4b18..2f04e90d 100644
--- a/tds.go
+++ b/tds.go
@@ -102,6 +102,7 @@ const (
 	verTDS73     = verTDS73A
 	verTDS73B    = 0x730B0003
 	verTDS74     = 0x74000004
+	verTDS80     = 0x08000000
 )
 
 // packet types
@@ -1026,6 +1027,12 @@ func interpretPreloginResponse(p msdsn.Config, fe *featureExtFedAuth, fields map
 }
 
 func prepareLogin(ctx context.Context, c *Connector, p msdsn.Config, logger ContextLogger, auth integratedauth.IntegratedAuthenticator, fe *featureExtFedAuth, packetSize uint32) (l *login, err error) {
+	var TDSVersion uint32
+	if(p.Encryption == msdsn.EncryptionStrict) {
+		TDSVersion = verTDS80
+	} else {
+		TDSVersion = verTDS74
+	}
 	var typeFlags uint8
 	if p.ReadOnlyIntent {
 		typeFlags |= fReadOnlyIntent
@@ -1038,7 +1045,7 @@ func prepareLogin(ctx context.Context, c *Connector, p msdsn.Config, logger Cont
 		serverName = p.Host
 	}
 	l = &login{
-		TDSVersion:    verTDS74,
+		TDSVersion:    TDSVersion,
 		PacketSize:    packetSize,
 		Database:      p.Database,
 		OptionFlags2:  fODBC, // to get unlimited TEXTSIZE