Hi NG
I'm a bit new to programming c# and have a question regarding ftp by the
command prompt. As far as I can see it should be possible to start a process
and pipe command streams into it. But I cant make it work, it always stalls
when I try to read the output:
/// code 1
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
string output = ftpProcess.StandardOutput.ReadToEnd();
string error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("ftp localhost");
ftpProcess.StandardInput.WriteLine();
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine();
//... further ftp action - but I never get this far....
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.WaitForExit();
///////////
I also tried:
/// code2
char [] output = new char [1000];
string all = "";
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
int i = ftpProcess.StandardOutput.Read(output, 0, 1000);
ftpProcess.StandardInput.WriteLine("ftp localhost");
i = ftpProcess.StandardOutput.Read(output, i, 1000-i);
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine("password");
ftpProcess.StandardInput.WriteLine("mkdir test");
ftpProcess.StandardInput.WriteLine("ls");
ftpProcess.StandardInput.WriteLine("bye");
all = ftpProcess.StandardOutput.ReadToEnd();
thanx
ps. And yes - I did connect manually by the command prompt so it should
work.
5  3631 
The reason it is hanging is that it is probably waiting for input of
some kind (username probably).
However, one has to ask, why not use a third party library to FTP, or
the WinInet functions for FTP through the P/Invoke layer? It would be a
much cleaner solution and give you much more control over the process.
Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- nick(dot)paldino=at=exisconsulting<dot>com
"ask" <a@creepREM.dk> wrote in message
news:3f*********************@news.dk.uu.net... Hi NG
I'm a bit new to programming c# and have a question regarding ftp by the
command prompt. As far as I can see it should be possible to start a
process and pipe command streams into it. But I cant make it work, it always
stalls when I try to read the output:
/// code 1
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
string output = ftpProcess.StandardOutput.ReadToEnd();
string error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("ftp localhost");
ftpProcess.StandardInput.WriteLine();
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine();
//... further ftp action - but I never get this far....
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.WaitForExit();
///////////
I also tried:
/// code2
char [] output = new char [1000];
string all = "";
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
int i = ftpProcess.StandardOutput.Read(output, 0, 1000);
ftpProcess.StandardInput.WriteLine("ftp localhost");
i = ftpProcess.StandardOutput.Read(output, i, 1000-i);
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine("password");
ftpProcess.StandardInput.WriteLine("mkdir test");
ftpProcess.StandardInput.WriteLine("ls");
ftpProcess.StandardInput.WriteLine("bye");
all = ftpProcess.StandardOutput.ReadToEnd();
thanx
ps. And yes - I did connect manually by the command prompt so it should
work.
Hi,
I've tried this with the FTP command myself using VBScripting, but never got
it to work, so I don't think it's C# problem, but might be something with
the FTP tool. What I ended up doing was to write a script that generated an
FTP script, and then used the -s option of the ftp tools to read that script
instead.
Arild
"ask" <a@creepREM.dk> wrote in message
news:3f*********************@news.dk.uu.net... Hi NG
I'm a bit new to programming c# and have a question regarding ftp by the
command prompt. As far as I can see it should be possible to start a
process and pipe command streams into it. But I cant make it work, it always
stalls when I try to read the output:
/// code 1
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
string output = ftpProcess.StandardOutput.ReadToEnd();
string error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("ftp localhost");
ftpProcess.StandardInput.WriteLine();
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine();
//... further ftp action - but I never get this far....
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.WaitForExit();
///////////
I also tried:
/// code2
char [] output = new char [1000];
string all = "";
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
int i = ftpProcess.StandardOutput.Read(output, 0, 1000);
ftpProcess.StandardInput.WriteLine("ftp localhost");
i = ftpProcess.StandardOutput.Read(output, i, 1000-i);
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine("password");
ftpProcess.StandardInput.WriteLine("mkdir test");
ftpProcess.StandardInput.WriteLine("ls");
ftpProcess.StandardInput.WriteLine("bye");
all = ftpProcess.StandardOutput.ReadToEnd();
thanx
ps. And yes - I did connect manually by the command prompt so it should
work.
Hi,
I've tried this with the FTP command myself using VBScripting, but never got
it to work, so I don't think it's C# problem, but might be something with
the FTP tool. What I ended up doing was to write a script that generated an
FTP script, and then used the -s option of the ftp tools to read that script
instead.
Arild
"ask" <a@creepREM.dk> wrote in message
news:3f*********************@news.dk.uu.net... Hi NG
I'm a bit new to programming c# and have a question regarding ftp by the
command prompt. As far as I can see it should be possible to start a
process and pipe command streams into it. But I cant make it work, it always
stalls when I try to read the output:
/// code 1
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
string output = ftpProcess.StandardOutput.ReadToEnd();
string error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("ftp localhost");
ftpProcess.StandardInput.WriteLine();
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine();
//... further ftp action - but I never get this far....
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.WaitForExit();
///////////
I also tried:
/// code2
char [] output = new char [1000];
string all = "";
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
int i = ftpProcess.StandardOutput.Read(output, 0, 1000);
ftpProcess.StandardInput.WriteLine("ftp localhost");
i = ftpProcess.StandardOutput.Read(output, i, 1000-i);
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine("password");
ftpProcess.StandardInput.WriteLine("mkdir test");
ftpProcess.StandardInput.WriteLine("ls");
ftpProcess.StandardInput.WriteLine("bye");
all = ftpProcess.StandardOutput.ReadToEnd();
thanx
ps. And yes - I did connect manually by the command prompt so it should
work.
This is a classic you will see if you use Process class incorrectly.
You can read the document about Process class to understand why this
happens.
Always read the document :)
In our next release, you will be able to get the output asynchrously.
Gang Peng
[MS]
"ask" <a@creepREM.dk> wrote in message
news:3f*********************@news.dk.uu.net... Hi NG
I'm a bit new to programming c# and have a question regarding ftp by the
command prompt. As far as I can see it should be possible to start a
process and pipe command streams into it. But I cant make it work, it always
stalls when I try to read the output:
/// code 1
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
string output = ftpProcess.StandardOutput.ReadToEnd();
string error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("ftp localhost");
ftpProcess.StandardInput.WriteLine();
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine();
//... further ftp action - but I never get this far....
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.WaitForExit();
///////////
I also tried:
/// code2
char [] output = new char [1000];
string all = "";
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
int i = ftpProcess.StandardOutput.Read(output, 0, 1000);
ftpProcess.StandardInput.WriteLine("ftp localhost");
i = ftpProcess.StandardOutput.Read(output, i, 1000-i);
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine("password");
ftpProcess.StandardInput.WriteLine("mkdir test");
ftpProcess.StandardInput.WriteLine("ls");
ftpProcess.StandardInput.WriteLine("bye");
all = ftpProcess.StandardOutput.ReadToEnd();
thanx
ps. And yes - I did connect manually by the command prompt so it should
work.
This is a classic you will see if you use Process class incorrectly.
You can read the document about Process class to understand why this
happens.
Always read the document :)
In our next release, you will be able to get the output asynchrously.
Gang Peng
[MS]
"ask" <a@creepREM.dk> wrote in message
news:3f*********************@news.dk.uu.net... Hi NG
I'm a bit new to programming c# and have a question regarding ftp by the
command prompt. As far as I can see it should be possible to start a
process and pipe command streams into it. But I cant make it work, it always
stalls when I try to read the output:
/// code 1
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
string output = ftpProcess.StandardOutput.ReadToEnd();
string error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("ftp localhost");
ftpProcess.StandardInput.WriteLine();
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine();
//... further ftp action - but I never get this far....
output = ftpProcess.StandardOutput.ReadToEnd();
error = ftpProcess.StandardError.ReadToEnd();
ftpProcess.WaitForExit();
///////////
I also tried:
/// code2
char [] output = new char [1000];
string all = "";
Process ftpProcess = new Process();
ftpProcess.StartInfo.FileName = "cmd";
ftpProcess.StartInfo.CreateNoWindow = true;
ftpProcess.StartInfo.RedirectStandardInput = true;
ftpProcess.StartInfo.RedirectStandardOutput = true;
ftpProcess.StartInfo.UseShellExecute = false;
ftpProcess.Start();
int i = ftpProcess.StandardOutput.Read(output, 0, 1000);
ftpProcess.StandardInput.WriteLine("ftp localhost");
i = ftpProcess.StandardOutput.Read(output, i, 1000-i);
ftpProcess.StandardInput.WriteLine("username");
ftpProcess.StandardInput.WriteLine("password");
ftpProcess.StandardInput.WriteLine("mkdir test");
ftpProcess.StandardInput.WriteLine("ls");
ftpProcess.StandardInput.WriteLine("bye");
all = ftpProcess.StandardOutput.ReadToEnd();
thanx
ps. And yes - I did connect manually by the command prompt so it should
work.
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