[Libssh] How to run remote interactive shell

[naveen tyagi]

Hi,
I am trying to use libssh for executing some commands on cisco routers:
I use channel_write to execute the command
but fail to get the output using channel_read. I use a select call  on session file descriptors before using channel_read. It fails to get the command output.
Here is the outline of my code

   options=ssh_options_new();
    if(ssh_options_getopt(options,&argc, argv))
        usage();
    opts(argc,argv);
    signal(SIGTERM,do_exit);
    if(user)
        ssh_options_set_username(options,user);
    ssh_options_set_host(options,host);
    session=ssh_new();
    ssh_set_options(session,options);
    
    
    ssh_set_verbosity(-1);
     ssh_connect(session)
   auth=ssh_userauth_autopubkey(session);
   

  No problem up to this point 

 Now I open channel and shell

    channel=channel_new(session);
     channel_open_session(channel);
    channel_request_pty(channel);
    channel_request_shell(channel);

     memset(buffer,0,1024);
    memcpy(buffer,routerCmnd[k],strlen(routerCmnd[k]));
    buffer[strlen(routerCmnd[k])]=13;
    printf("Writing command = %s\n",buffer);
    channel_write(channel,(void*)buffer,strlen(routerCmnd[k])+1);

  Please note that I do use carriage return;

 Then I use channel read after doing a select call on fd associated with session
 and all I get to see is the command that I sent for execution and not its output.
 Not  sure what is missing.

 Please help.
Thanks,
Naveen.
       
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