| Subject: | Problem with multiple cmd() calls |
I have problems executing multiple commands with the cmd() function.
Only the first command is executed correctly. The others are ignored and
the return values of cmd() are all empty.
Here is an example code:
my $ssh = Net::SSH::Perl->new($hostname,
options=>["UserKnownHostsFile /dev/null"],
protocol => "2,1",
debug => true );
$ssh->login($username, $password);
for ($i=0; $i<=30; $i++) {
($stdout, $stderr, $exit) = $ssh->cmd("touch /tmp/test$i");
}
The debug output:
Roland: Reading configuration data /home/roland/.ssh/config
Roland: Reading configuration data /etc/ssh_config
Roland: Connecting to localhost, port 22.
Roland: Remote protocol version 2.0, remote software version
OpenSSH_3.6.1p2 Debian 1:3.6.1p2-9
Roland: Net::SSH::Perl Version 1.24, protocol version 2.0.
Roland: No compat match: OpenSSH_3.6.1p2 Debian 1:3.6.1p2-9.
Roland: Connection established.
Roland: Sent key-exchange init (KEXINIT), wait response.
Roland: Algorithms, c->s: 3des-cbc hmac-sha1 none
Roland: Algorithms, s->c: 3des-cbc hmac-sha1 none
Roland: Entering Diffie-Hellman Group 1 key exchange.
Roland: Sent DH public key, waiting for reply.
Roland: Received host key, type 'ssh-dss'.
Roland: Permanently added 'localhost' to the list of known hosts.
Roland: Computing shared secret key.
Roland: Verifying server signature.
Roland: Waiting for NEWKEYS message.
Roland: Enabling incoming encryption/MAC/compression.
Roland: Send NEWKEYS, enable outgoing encryption/MAC/compression.
Roland: Sending request for user-authentication service.
Roland: Service accepted: ssh-userauth.
Roland: Trying empty user-authentication request.
Roland: Authentication methods that can continue:
publickey,password,keyboard-interactive.
Roland: Next method to try is publickey.
Roland: Publickey: testing agent key '/home/roland/.ssh/id_dsa'
Roland: Authentication methods that can continue:
publickey,password,keyboard-interactive.
Roland: Next method to try is publickey.
Roland: Trying pubkey authentication with key file
'/home/roland/.ssh/id_dsa'
Roland: Will not query passphrase for '/home/roland/.ssh/id_dsa' in
batch mode.
Roland: Loading private key failed.
Roland: Next method to try is password.
Roland: Trying password authentication.
Roland: Login completed, opening dummy shell channel.
Roland: channel 0: new [client-session]
Roland: Requesting channel_open for channel 0.
Roland: channel 0: open confirm rwindow 0 rmax 32768
Roland: Got channel open confirmation, requesting shell.
Roland: Requesting service shell on channel 0.
Roland: channel 1: new [client-session]
Roland: Requesting channel_open for channel 1.
Roland: Entering interactive session.
Roland: Sending command: touch /tmp/o1/test0
Roland: Requesting service exec on channel 1.
Roland: channel 1: open confirm rwindow 0 rmax 32768
Roland: input_channel_request: rtype exit-status reply 0
Roland: channel 1: rcvd eof
Roland: channel 1: output open -> drain
Roland: channel 1: rcvd close
Roland: channel 1: input open -> closed
Roland: channel 1: close_read
Roland: channel 1: obuf empty
Roland: channel 1: output drain -> closed
Roland: channel 1: close_write
Roland: channel 1: send close
Roland: channel 1: full closed
Roland: channel 2: new [client-session]
Roland: Requesting channel_open for channel 2.
Roland: Entering interactive session.
Roland: channel 3: new [client-session]
Roland: Requesting channel_open for channel 3.
My Perl version is 5.8.0, Net::SSH::Perl is 1.24 running on Debian Sarge.