125 Data connection already open; Transfer starting.

[netaxcess]

`package main

import (

//"crypto/sha256"

//"crypto/tls"
"fmt"
"io"
"os"

//"encoding/hex"
"github.com/dutchcoders/goftp"

)

func main() {
var err error
var ftp *goftp.FTP
var server = "ftpserver"

// For debug messages: goftp.ConnectDbg("ftpserver")
if ftp, err = goftp.Connect(server); err != nil {
    panic(err)
}
defer ftp.Close()
fmt.Println("Successfully connected to", server)

// TLS client authentication


// Username / password authentication
if err = ftp.Login("ftpuser", "ftppwd"); err != nil {
    panic(err)
}

if err = ftp.Cwd("/ff"); err != nil {
    panic(err)
}

var curpath string
if curpath, err = ftp.Pwd(); err != nil {
    panic(err)
}
fmt.Println("Current path:", curpath)


// Upload a file


// Download each file into local memory, and calculate it's sha256 hash
_,err =ftp.Retr("f.zip", func(r io.Reader) error {
    
	dst, err := os.OpenFile("f.zip", os.O_WRONLY|os.O_CREATE, 0644)
	defer dst.Close() 
	if _, err = io.Copy(dst, r); err != nil {
		return err
	}
	return err
})

}`
use ftp to download zip file,has this error

125 Data connection already open; Transfer starting.

[colmdo]

Hello , I have same issue with Windows NT IIS ftp server which does not seem to support MLSD :
---> SYST 215 Windows_NT Remote system type is Windows_NT. ---> FEAT 211-FEAT SIZE MDTM 211 END features[FEAT_FEAT] = 1 features[FEAT_MDTM] = 1 features[FEAT_MLST] = 0 features[FEAT_REST_STREAM] = 0 features[FEAT_SIZE] = 1 features[FEAT_TVFS] = 0

The Walk function then tries LIST but does not parse correctly what came back
-rwxrwxrwx 1 owner group 1922 Feb 28 13:46 u_ex170228.log\r\n

I can help with testing the bugfix if needed

Regards, Colm

[netaxcess]

hope you can help me. How to operate it, how to contact you

[beardww]

commenting out the following in the List function, in file ftp.go
seemed to have fixed my issue with (125 Data connection already open; Transfer starting.)

		if !strings.HasPrefix(line, StatusFileOK) {
			// Really list is not working here
			err = errors.New(line)
			return
		}

[miladz68]

same issue here, listing the remote files gives the same error as :

125 Data connection already open; Transfer starting

[jaroteko18]

Try to use only ftp.Retr(pathtofile+"f.zip", func(r io.Reader)) and remove ftp.Cwd & ftp.Pwd
It should works