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Add Ability to Print Both IP and Hostname

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Add -b switch to pring both the IP address and Hostname when scanning
a range.  The -b switch will also forcefully trigger the -n switch.
This commit is contained in:
Andrew Tomaka 2013-02-28 08:12:20 -05:00
parent e0e789b58f
commit e45a78b619
1 changed files with 9 additions and 4 deletions
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13
sbin/pinger
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@ -14,13 +14,14 @@ $| = 1;
die("pinger must be run as root\n") if($> != 0); die("pinger must be run as root\n") if($> != 0);
my $alive = 1; my $alive = 1;
my(%switches, $time, $name, $force, $startTime, $finishTime); my(%switches, $both, $time, $name, $force, $startTime, $finishTime);
# handle command line options # handle command line options
my $status = getopts('dfrnth', \%switches); my $status = getopts('bdfrnth', \%switches);
help() if(!$status || $switches{'h'}); help() if(!$status || $switches{'h'});
for (keys %switches) { for (keys %switches) {
switch($_) { switch($_) {
case 'b' { $both = 1; $name = 1; }
case 'd' { $alive = 0; } case 'd' { $alive = 0; }
case 'f' { $force = 1; } case 'f' { $force = 1; }
case 'r' { $alive = 1; } case 'r' { $alive = 1; }
@ -72,7 +73,9 @@ for(my $i = $start, my $k = 1; $i <= $end; $i++, $k++) {
if($reachable == $alive) { if($reachable == $alive) {
if($name && ($reachable || $force)) { if($name && ($reachable || $force)) {
my $hostaddr = gethostbyaddr(inet_aton($ip), AF_INET); my $hostaddr = gethostbyaddr(inet_aton($ip), AF_INET);
$ip = $hostaddr if($hostaddr ne ""); if($hostaddr ne "") {
$ip = ($both) ? "$ip\t$hostaddr" : "$hostaddr";
}
} }
push(@ips, $ip); push(@ips, $ip);
@ -83,7 +86,8 @@ $finishTime = time if($time);
print "\n\n"; print "\n\n";
($alive) ? print "Reachable:\n" : print "Dead:\n"; ($alive) ? print "Reachable:\n" : print "Dead:\n";
print join(", ", @ips); my $delimeter = ($both) ? "\n" : ", ";
print join($delimeter, @ips);
print "\n\n"; print "\n\n";
if($time) { if($time) {
@ -128,6 +132,7 @@ sub progressBar {
sub help { sub help {
print "usage:\t pinger [-d] start [finish]\n\n"; print "usage:\t pinger [-d] start [finish]\n\n";
print "\t-b\t\tList both hostname and ip address\n";
print "\t-d\t\tList dead addresses\n"; print "\t-d\t\tList dead addresses\n";
print "\t-f\t\tForce hostname lookup even if unreachable\n"; print "\t-f\t\tForce hostname lookup even if unreachable\n";
print "\t-n\t\tReturn list as hostnames when possible\n"; print "\t-n\t\tReturn list as hostnames when possible\n";