[Bugfix] fix zmodem sz error

Author: ibuler

session.go

@@ -1,7 +1,6 @@
 package ssh
 
 import (
-	"bytes"
 	"context"
 	"errors"
 	"fmt"
@@ -117,18 +116,19 @@ type session struct {
 }
 
 func (sess *session) Write(p []byte) (n int, err error) {
-	if sess.pty != nil {
-		m := len(p)
-		// normalize \n to \r\n when pty is accepted.
-		// this is a hardcoded shortcut since we don't support terminal modes.
-		p = bytes.Replace(p, []byte{'\n'}, []byte{'\r', '\n'}, -1)
-		p = bytes.Replace(p, []byte{'\r', '\r', '\n'}, []byte{'\r', '\n'}, -1)
-		n, err = sess.Channel.Write(p)
-		if n > m {
-			n = m
-		}
-		return
-	}
+	// If change the \n to \r\n, then zmodem(rzsz) will be error
+	//if sess.pty != nil {
+	//	m := len(p)
+	//	// normalize \n to \r\n when pty is accepted.
+	//	// this is a hardcoded shortcut since we don't support terminal modes.
+	//	p = bytes.Replace(p, []byte{'\n'}, []byte{'\r', '\n'}, -1)
+	//	p = bytes.Replace(p, []byte{'\r', '\r', '\n'}, []byte{'\r', '\n'}, -1)
+	//	n, err = sess.Channel.Write(p)
+	//	if n > m {
+	//		n = m
+	//	}
+	//	return
+	//}
 	return sess.Channel.Write(p)
 }