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Problem Making Socket Connection

jpetter asked
Last Modified: 2013-11-22
I'm brand new to TCL, and am trying to learn it so I can write some expect scripts that would help us automate some of our workload.

I'm trying to take it nice and slow, and move ahead once I get one piece of code working. But I can't even get this first piece working, so I must be way off on the wrong track.

What I'm trying to do here is to help automate a piece of our vulnerability management work. With this small snippet, I just wanted to pass the script an ip address, and a port, and have the program check to see if the port is open or not. Once I get this piece working, I plan to work on the Expect piece which will logon to one of my Linux systems, and run rpcinfo -p with the arguments passed, which would be the IP and port if they are found to be open.

I would greatly appreciate it if someone could get me started on this. I have pasted the code I've been playing around with far too long.

BTW, the error message I receive is:
"$ ./get-rpc-info 80
couldn't open socket: connection refused
    while executing
"socket $address $port"
    invoked from within
"set sock [socket $address $port]"
    (file "./get-rpc-info" line 11)"

Thanks very much,

if { $argc != 2 } {
    puts "Usage: $argv0 <ip address> <port>"
    exit 1;
set address [lindex $argv 0]
set port [lindex $argv 1]
#puts "Command line is: $argv0 $address:$port"
set sock [socket $address $port]
set result "$address:$port"
if [ns_sockcheck] {
    puts "$result -- open"
} else {
    puts "$result -- closed"
	close $sock

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