C# Ftp client

[Boris]

I am trying to develop C# ftp client to upload files to remote host.
Whenever, I execute System.Net.Sockets.Socket.Connect method, .Net Framework
raises the following exception

Request for the permission of type System.Net.SocketPermission, System,
Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 failed.

Why does this happen?

Thanks,
-Boris

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

This may seems like a silly question, but are you running it from a network
share?

It seems like a permission issue, maybe the user you are running under does
not have enough privilegies

btw, you should use TcpClient instead of Socket, unless you are planning to
use some low level functions.

Cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Boris" <bo***@crabel.com> wrote in message
news:eI**************@TK2MSFTNGP12.phx.gbl...

I am trying to develop C# ftp client to upload files to remote host.
Whenever, I execute System.Net.Sockets.Socket.Connect method, .Net Framework raises the following exception

Request for the permission of type System.Net.SocketPermission, System,
Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 failed.
Why does this happen?

Thanks,
-Boris

[Jon Skeet [C# MVP]]

Boris <bo***@crabel.com> wrote:

I am trying to develop C# ftp client to upload files to remote host.
Whenever, I execute System.Net.Sockets.Socket.Connect method, .Net Framework
raises the following exception

Request for the permission of type System.Net.SocketPermission, System,
Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 failed.

Why does this happen?

Presumably because the machine running the code hasn't given the
assembly the required level of trust.

--
Jon Skeet - <sk***@pobox.com>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Nicholas Paldino [.NET/C# MVP]]

Boris,

Quite simply, you don't have permission for it to run. Is the code that
this is running from being downloaded from the web, or from a shared drive?
If that is the case, then the default settings would prevent you from
accessing the Socket class.

Hope this helps.

--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Boris" <bo***@crabel.com> wrote in message
news:eI**************@TK2MSFTNGP12.phx.gbl...

I am trying to develop C# ftp client to upload files to remote host.
Whenever, I execute System.Net.Sockets.Socket.Connect method, .Net
Framework raises the following exception

Request for the permission of type System.Net.SocketPermission, System,
Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
failed.

Why does this happen?

Thanks,
-Boris

[Boris]

Hi Ignacio,

Thanks for the response. You are right. I was running it from the network
share, and as soon as I ran it on local machine, it started working.

I am trying to implement FTP client to perform the following tasks

1) Login to remote UNIX server
2) Create appropriate directory, if not already exists
3) Upload the file into the directory
4) Delete file from the directory

Would TcpClient provide me with this functionality? Do you have any code
examples?

Thanks,
-Boris

"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us> wrote
in message news:%2***************@TK2MSFTNGP12.phx.gbl...

Hi,

This may seems like a silly question, but are you running it from a
network
share?

It seems like a permission issue, maybe the user you are running under
does
not have enough privilegies

btw, you should use TcpClient instead of Socket, unless you are planning
to
use some low level functions.

Cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Boris" <bo***@crabel.com> wrote in message
news:eI**************@TK2MSFTNGP12.phx.gbl...

I am trying to develop C# ftp client to upload files to remote host.
Whenever, I execute System.Net.Sockets.Socket.Connect method, .Net

Framework

raises the following exception

Request for the permission of type System.Net.SocketPermission, System,
Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

failed.

Why does this happen?

Thanks,
-Boris

[Nicholas Paldino [.NET/C# MVP]]

Boris,

The TcpClient will only help you in connecting to the FTP server, it
will not help you with issuing the commands for the FTP. You still have to
do that yourself.

However, in .NET 2.0, there is an FtpWebRequest class, which could make
much of it easier (if you can use the beta, and roll out after the release).

Hope this helps.

--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Boris" <bo***@crabel.com> wrote in message
news:%2****************@TK2MSFTNGP10.phx.gbl...

Hi Ignacio,

Thanks for the response. You are right. I was running it from the
network share, and as soon as I ran it on local machine, it started
working.

I am trying to implement FTP client to perform the following tasks

1) Login to remote UNIX server
2) Create appropriate directory, if not already exists
3) Upload the file into the directory
4) Delete file from the directory

Would TcpClient provide me with this functionality? Do you have any code
examples?

Thanks,
-Boris

"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:%2***************@TK2MSFTNGP12.phx.gbl...

Hi,

This may seems like a silly question, but are you running it from a
network
share?

It seems like a permission issue, maybe the user you are running under
does
not have enough privilegies

btw, you should use TcpClient instead of Socket, unless you are planning
to
use some low level functions.

Cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Boris" <bo***@crabel.com> wrote in message
news:eI**************@TK2MSFTNGP12.phx.gbl...

I am trying to develop C# ftp client to upload files to remote host.
Whenever, I execute System.Net.Sockets.Socket.Connect method, .Net

Framework

raises the following exception

Request for the permission of type System.Net.SocketPermission, System,
Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b77a5c561934e089

failed.

Why does this happen?

Thanks,
-Boris

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

Thanks for the response. You are right. I was running it from the network share, and as soon as I ran it on local machine, it started working.
Good to know !
Would TcpClient provide me with this functionality? Do you have any code
examples?

TcpClient is a easier way to handle TCP connection, nothing else, you still
have to implement the ftp protocol.

I dont have any code unfortunally, but I'm very sure that if you look into
the archives or online somewhere you will find either a component ready to
be used or an example of how to implement it.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

[Fakher Halim]

For finer control, you may want to try
http://www.codeproject.com/dotnet/FTPWinFormClient.asp

Fakher Halim
"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us> wrote
in message news:uU**************@tk2msftngp13.phx.gbl...

Hi,

Thanks for the response. You are right. I was running it from the network

share, and as soon as I ran it on local machine, it started working.

Good to know !

Would TcpClient provide me with this functionality? Do you have any code examples?

TcpClient is a easier way to handle TCP connection, nothing else, you

still have to implement the ftp protocol.

I dont have any code unfortunally, but I'm very sure that if you look into
the archives or online somewhere you will find either a component ready to
be used or an example of how to implement it.

cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation

[Jeff Clausius]

Boris:

Unless writing your own FTP client is a learning excersize, I'd recommend
against re-inventing the wheel, so to speak.

Check out http://www.indyproject.org/indy.html for more information.

Jeff
"Boris" <bo***@crabel.com> wrote in
news:#V**************@TK2MSFTNGP10.phx.gbl:

Hi Ignacio,

Thanks for the response. You are right. I was running it from the
network share, and as soon as I ran it on local machine, it started
working.

I am trying to implement FTP client to perform the following tasks

1) Login to remote UNIX server
2) Create appropriate directory, if not already exists
3) Upload the file into the directory
4) Delete file from the directory

Would TcpClient provide me with this functionality? Do you have any
code examples?

Thanks,
-Boris

"Ignacio Machin ( .NET/ C# MVP )" <ignacio.machin AT dot.state.fl.us>
wrote in message news:%2***************@TK2MSFTNGP12.phx.gbl...

Hi,

This may seems like a silly question, but are you running it from a
network
share?

It seems like a permission issue, maybe the user you are running
under does
not have enough privilegies

btw, you should use TcpClient instead of Socket, unless you are
planning to
use some low level functions.

Cheers,

--
Ignacio Machin,
ignacio.machin AT dot.state.fl.us
Florida Department Of Transportation
"Boris" <bo***@crabel.com> wrote in message
news:eI**************@TK2MSFTNGP12.phx.gbl...

I am trying to develop C# ftp client to upload files to remote host.
Whenever, I execute System.Net.Sockets.Socket.Connect method, .Net

Framework

raises the following exception

Request for the permission of type System.Net.SocketPermission,
System, Version=1.0.5000.0, Culture=neutral,
PublicKeyToken=b77a5c561934e089

failed.

Why does this happen?

Thanks,
-Boris