Client server program

[karthikeyanck]

I 've to write a client server program for my assignment at college......

The server listens at some port in one machine and the client is running on some other machine......

I 'll 've to execute a command from the client so that the command in executed on the server. Please guide me. A small hint for the start is appreciated.

[KevinADC]

this is all the help I am willing to give you:

http://perldoc.perl.org/perlipc.html

[rohitbasu77]

The bellow program has got two parts:
A server and a client
The server send message to the client and the client print that message.

Server:

#!/usr/bin/perl
use strict; 
use Socket; 

# use port 5700 as default 
my $port = shift || 5700; 
my $proto = getprotobyname('tcp'); 

 # create a socket, make it reusable 
 socket(SERVER, PF_INET, SOCK_STREAM, $proto) or die "socket: $!"; 
 setsockopt(SERVER, SOL_SOCKET, SO_REUSEADDR, 1) or die "setsock: $!"; 

 # grab a port on this machine 
 my $paddr = sockaddr_in($port, INADDR_ANY); 

# bind to a port, then listen 
bind(SERVER, $paddr) or die "bind: $!"; 
listen(SERVER, SOMAXCONN) or die "listen: $!"; 
print "SERVER started on port $port "; 

# accepting a connection 
my $client_addr; 
while ($client_addr = accept(CLIENT, SERVER)) 
{ 
# find out who connected 
my ($client_port, $client_ip) = sockaddr_in($client_addr); 
my $client_ipnum = inet_ntoa($client_ip); 
my $client_host = gethostbyaddr($client_ip, AF_INET); 
 # print who has connected 
 print " \n got a connection from: $client_host","[$client_ipnum] \n "; 
 # send them a message, close connection 
print CLIENT " \n Smile from the server \n"; 
close CLIENT; 
}

Client:

#!/usr/bin/perl

use strict; 
use Socket; 

# initialize host and port 
my $host = shift || 'localhost'; 
my $port = shift || 5700; 

my $proto = getprotobyname('tcp'); 

# get the port address 
my $iaddr = inet_aton($host); 
my $paddr = sockaddr_in($port, $iaddr); 
 # create the socket, connect to the port 
 socket(SOCKET, PF_INET, SOCK_STREAM, $proto) 
a. or die "socket: $!"; 
connect(SOCKET, $paddr) or die "connect: $!"; 

my $line; 
while ($line = <SOCKET> ) 
{ 
print $line; 

} 
close SOCKET or die "close: $!";