how to access a ftp sever with socket

[michael via Digitalmars-d-learn]

Hello Anyone:
 i am trying make a ftp client with socket,i have tried std.net.curl,but i 
cont stand with so many try-catch structure in my code,i am not familiar with
socket,i write a pecie of code but it cont give me the welcome message which i 
want,and then i use wireshark to trace the comunication,i found that
ftp server:21 send the message to my client:1024,but why there is nothing in 
str buf?thanks for your help.
import std.socket,std.stdio;
void main(){
 string ip = **;//i hide the address
 int msecs = 1000;
 auto ftp = getAddressInfo(ip,ftp);
 Socket listener = new TcpSocket;
 listener.bind(new InternetAddress(1024));
 listener.connect(ftp[0].address);
 auto pair = socketPair();
 auto sock = pair[0];
 sock.setOption(SocketOptionLevel.SOCKET,SocketOption.RCVTIMEO, 
dur!msecs(msecs));
 char[1024] buf;
 sock.receive(buf);
 writeln(buf);
}

 ‍

Re: how to access a ftp sever with socket

[ketmar via Digitalmars-d-learn]

On Mon, 8 Dec 2014 17:16:23 +0800 (CST)
michael via Digitalmars-d-learn digitalmars-d-learn@puremagic.com
wrote:

 Hello Anyone:
  i am trying make a ftp client with socket,i have tried std.net.curl,but 
 i cont stand with so many try-catch structure in my code,i am not familiar 
 with
 socket,i write a pecie of code but it cont give me the welcome message which 
 i want,and then i use wireshark to trace the comunication,i found that
 ftp server:21 send the message to my client:1024,but why there is nothing in 
 str buf?thanks for your help.
 import std.socket,std.stdio;
 void main(){
  string ip = **;//i hide the address
  int msecs = 1000;
  auto ftp = getAddressInfo(ip,ftp);
  Socket listener = new TcpSocket;
  listener.bind(new InternetAddress(1024));
  listener.connect(ftp[0].address);
  auto pair = socketPair();
  auto sock = pair[0];
  sock.setOption(SocketOptionLevel.SOCKET,SocketOption.RCVTIMEO, 
 dur!msecs(msecs));
  char[1024] buf;
  sock.receive(buf);
  writeln(buf);
 }

that is not how it all works. you need to learn network programming
with sockets first, it is not D-specific. for now it looks like you are
trying random things in a hope that it will magically works.


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