#!/usr/bin/perl

use strict;
use warnings;
use Data::Dumper;
use Digest::MD5;
use IPC::Run qw( run timeout ) ;

my %syscalls;

runsyscall('/usr/bin/ls');
runsyscall('/bin/ls');
runsyscall('vipw');

print Dumper %syscalls;

sub runsyscall
{
    my @cmd = @_;

    my $digest = digestit(@cmd);
    my ( $in, $out, $err );
    $syscalls{$digest}{'cmd'} = qq|@cmd|;

    eval { run \@cmd, \$in, \$out, \$err, timeout 10 };

    if ($@)
    {
        $syscalls{$digest}{'exit'} = $@;
    }
    chomp ($err) if $err;
#    chomp ($out) if $out;
    $syscalls{$digest}{'err'} = $err || undef;
#    $syscalls{$digest}{'out'} = $out || undef;

}

sub digestit
{
    my @cmd = @_;
    my $sysdigest = Digest::MD5->new;
    $sysdigest->add(@cmd);

    return $sysdigest->hexdigest;
}