NAME
Net::SSH2::Channel - SSH 2 channel object
DESCRIPTION
A channel object is created by the Net::SSH2 channel method. As well as being an object, it is also a tied filehandle. The Net::SSH2 poll method can be used to check for read/write availability and other conditions.
setenv ( key, value ... )
Sets remote environment variables. Note that most implementations do not allow environment variables to be freely set. Pass in a list of keys and values with the values to set. Returns the number of successful sets.
blocking ( flag )
Enable or disable blocking. Note that this is currently implemented in libssh2 by setting a per-session flag; it's equivalent to Net::SSH2::blocking.
eof
Returns true if the remote server sent an EOF.
send_eof
Send an EOF to the remote. After an EOF has been sent, no more data may be sent; the connection should be closed.
close
Close the channel (happens automatically on object destruction).
wait_closed
Wait for a remote close event. Must have already seen remote EOF.
exit_status
Returns the channel's program exit status.
pty ( terminal [, modes [, width [, height ]]] )
Request a terminal on a channel. If provided, width and height are the width and height in characters (defaults to 80x24); if negative their absolute values specify width and height in pixels.
pty_size ( width, height )
Request a terminal size change on a channel. width and height are the width and height in characters; if negative their absolute values specify width and height in pixels.
process ( request, message )
Start a process on the channel. See also shell, exec, subsystem.
shell
Start a shell on the remote host; calls process("shell").
exec ( command )
Execute the command on the remote host; calls process("exec", command). Note that only one of these requests can succeed per channel (cp. "exec" in perlfunc); if you want to run a series of commands, consider using shell instead.
subsystem ( name )
Run subsystem on the remote host; calls process("subsystem", command).
ext_data ( mode )
Set extended data handling mode:
- normal (default)
-
Keep data in separate channels; stderr is read separately.
- ignore
-
Ignore all extended data.
- merge
-
Merge into the regular channel.
read ( buffer, size [, ext ] )
Attempts to read size bytes into the buffer. Returns number of bytes read, undef on failure. If ext is present and set, reads from the extended data channel (stderr).
write ( buffer [, ext ] )
Attempts to write the buffer to the channel. Returns number of bytes written, undef on failure. If ext is present and set, writes to the extended data channel (stderr).
flush ( [ ext ] )
Flushes the channel; if ext is present and set, flushes extended data channel. Returns number of bytes flushed, undef on error.
exit_signal
Returns the exit signal of the command executed on the channel. Requires libssh 1.2.8 or higher.
SEE ALSO
AUTHOR
David B. Robins, <dbrobins@cpan.org>
COPYRIGHT AND LICENSE
Copyright (C) 2005, 2006 by David B. Robins; all rights reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.0 or, at your option, any later version of Perl 5 you may have available.