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Add Switch to Print Both Reachable and Unreachable IPs

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A new switch -a was added to print both reachable and unreachable
hosts.  To diffentiate, hosts are now colored based on their status.
The -a switch overrides -r and -d.
This commit is contained in:
Andrew Tomaka 2013-03-01 15:52:07 -05:00
parent e45a78b619
commit 991bad27d3
1 changed files with 30 additions and 11 deletions
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41
sbin/pinger
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@ -6,6 +6,7 @@ use POSIX;
use Socket;
use Switch;
use Time::HiRes qw/time/;
use Term::ANSIColor;
# force print before buffer is full
$| = 1;
@ -14,13 +15,14 @@ $| = 1;
die("pinger must be run as root\n") if($> != 0);
my $alive = 1;
my(%switches, $both, $time, $name, $force, $startTime, $finishTime);
my(%switches, $all, $both, $time, $name, $force, $startTime, $finishTime);
# handle command line options
my $status = getopts('bdfrnth', \%switches);
my $status = getopts('abdfrnth', \%switches);
help() if(!$status || $switches{'h'});
for (keys %switches) {
switch($_) {
case 'a' { $all = 1; }
case 'b' { $both = 1; $name = 1; }
case 'd' { $alive = 0; }
case 'f' { $force = 1; }
@ -36,7 +38,7 @@ die("Usage: pinger START_IP [END_IP]\n")if(scalar(@ARGV) < 1 || scalar(@ARGV) >
$startTime = time if($time);
my $p = Net::Ping->new('icmp');
my @ips;
my(@reachable_ips,@unreachable_ips);
# must be IP addresses
if($ARGV[0] !~ /((?:\d{1,3}\.){3}\d{1,3})/ || (defined($ARGV[1]) && $ARGV[1] !~ /((?:\d{1,3}\.){3}\d{1,3})/)) {
@ -70,22 +72,38 @@ for(my $i = $start, my $k = 1; $i <= $end; $i++, $k++) {
my $ip = $baseIp . '.' . $i;
my $reachable = $p->ping($ip, 1);
if($reachable == $alive) {
if($name && ($reachable || $force)) {
my $hostaddr = gethostbyaddr(inet_aton($ip), AF_INET);
if($hostaddr ne "") {
$ip = ($both) ? "$ip\t$hostaddr" : "$hostaddr";
}
if($name && ($reachable || $force)) {
my $hostaddr = gethostbyaddr(inet_aton($ip), AF_INET);
if($hostaddr ne "") {
$ip = ($both) ? "$ip\t$hostaddr" : "$hostaddr";
}
}
push(@ips, $ip);
if($reachable) {
push(@reachable_ips, colored($ip, 'green'));
} else {
push(@unreachable_ips, colored($ip, 'red'));
}
}
$p->close();
$finishTime = time if($time);
print "\n\n";
($alive) ? print "Reachable:\n" : print "Dead:\n";
my @ips;
if($all) {
print "All:\n";
@ips = (@reachable_ips, @unreachable_ips);
@ips = map { $_->[0] }
sort { $a->[1] <=> $b->[1] }
map { [$_, int sprintf("%03.f%03.f%03.f%03.f", split(/\.+/, $_))] }
@ips;
} elsif($alive) {
print "Reachable:\n";
@ips = @reachable_ips;
} else {
print "Dead:\n";
@ips = @unreachable_ips;
}
my $delimeter = ($both) ? "\n" : ", ";
print join($delimeter, @ips);
print "\n\n";
@ -132,6 +150,7 @@ sub progressBar {
sub help {
print "usage:\t pinger [-d] start [finish]\n\n";
print "\t-a\t\tList both reachable and unreachable hosts\n";
print "\t-b\t\tList both hostname and ip address\n";
print "\t-d\t\tList dead addresses\n";
print "\t-f\t\tForce hostname lookup even if unreachable\n";