simply-git/lib/SimplyGit/Shellex.pm

package SimplyGit::Shellex;
use strict;
use warnings;
use Log::Log4perl qw(:easy);
use Exporter qw(import);
our @EXPORT_OK = qw(shellex findBin knocker);

sub knocker($$$) {

	my $target = shift;
	my $portRef = shift;
	my $logger = shift;
	my $nmapCmd = findBin("nmap",$logger);
	foreach my $port (@$portRef) {
		shellex("$nmapCmd -Pn --host_timeout 201 --max-retries 0 -p $port $target > /dev/null",$logger);
	}

}

sub shellex {

        my $cmd = shift;
	my $logger = shift;
	if ( defined $logger && $logger ne '' ) {
		$logger->info("Running: $cmd 2>&1");
	}

        my $output = `$cmd 2>&1`;
	chomp $output;
	my $rc = $?;
	if ( defined $logger && $logger ne '' ) {
		$logger->info("Returned: $rc");
	}

	if ( $rc != 0 ) {
		if ( defined $logger && $logger ne '' ) {
			$logger->error("$cmd returned non-zero: $rc");
		}

		print "$cmd returned non-zero: $rc\n";
		exit 1;
	}

        return $output;

}

sub findBin {

	my $cmd = shift;
	my $logger = shift;
	my $binPath = shellex("which $cmd",$logger);
	my $rc = $?;
	chomp $binPath;
	if ( $rc != 0 ) {
		if ( defined $logger && $logger ne '' ) {
			$logger->error("Couldn't find a path for $cmd, exiting...");
		}
		exit 1;
	} else {
		return $binPath;
	}

}
1;