ok windows seems to work now

main.go

@@ -69,6 +69,7 @@ func main() {
 		cli.BoolFlag{Name: "debug", Usage: "increase verbosity (a lot)"},
 		cli.BoolFlag{Name: "yes", Usage: "automatically agree to all prompts"},
 		cli.BoolFlag{Name: "stdout", Usage: "redirect file to stdout"},
+		cli.BoolFlag{Name: "force-tcp", Usage: "force TCP"},
 		cli.StringFlag{Name: "port", Value: "8153", Usage: "port that the websocket listens on"},
 		cli.StringFlag{Name: "tcp-port", Value: "8154", Usage: "port that the tcp server listens on"},
 		cli.StringFlag{Name: "curve", Value: "siec", Usage: "specify elliptic curve to use (p224, p256, p384, p521, siec)"},
@@ -96,6 +97,9 @@ func main() {
 		cr.RelayWebsocketPort = c.String("port")
 		cr.RelayTCPPort = c.String("tcp-port")
 		cr.CurveType = c.String("curve")
+		if c.GlobalBool("force-tcp") {
+			cr.ForceSend = 2
+		}
 		return nil
 	}
 

src/comm/comm.go

@@ -70,26 +70,20 @@ func (c Comm) Read() (buf []byte, numBytes int, bs []byte, err error) {
 	if err != nil {
 		return nil, 0, nil, err
 	}
-	buf = make([]byte, numBytes)
+	buf = []byte{}
 	tmp = make([]byte, numBytes)
-	bufStart := 0
 	for {
 		n, err := c.connection.Read(tmp)
 		if err != nil {
 			return nil, 0, nil, err
 		}
-		tmpCopy := make([]byte, n)
+		tmpCopy = make([]byte, n)
 		// Copy the buffer so it doesn't get changed while read by the recipient.
 		copy(tmpCopy, tmp[:n])
-
-		tmpCopy = bytes.TrimSpace(tmpCopy)
-		tmpCopy = bytes.Replace(tmpCopy, []byte(" "), []byte{}, -1)
-		tmpCopy = bytes.Trim(tmpCopy, "\x00")
-		copy(buf[bufStart:bufStart+len(tmpCopy)], tmpCopy[:])
-		bufStart = len(buf)
-		if bufStart < numBytes {
+		buf = append(buf, bytes.TrimRight(tmpCopy, "\x00")...)
+		if len(buf) < numBytes {
 			// shrink the amount we need to read
-			tmp = tmp[:numBytes-bufStart]
+			tmp = tmp[:numBytes-len(buf)]
 		} else {
 			break
 		}

src/recipient/recipient.go

@@ -221,7 +221,7 @@ func receive(forceSend int, serverAddress, serverTCP string, isLocal bool, c *we
 				var enc crypt.Encryption
 				err = json.Unmarshal(message, &enc)
 				if err != nil {
-					log.Errorf("%s: %s (%d/%d) %+v", err.Error(), message, len(message), numBytes, bs)
+					log.Errorf("%s: [%s] [%+v] (%d/%d) %+v", err.Error(), message, message, len(message), numBytes, bs)
 					return err
 				}
 				decrypted, err := enc.Decrypt(sessionKey, !fstats.IsEncrypted)