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perl script to get unix time (port 37)
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#!/usr/bin/perl | |
use POSIX qw(strftime); | |
use IO::Socket::INET; | |
### binmode(STDIN); | |
$serverip = $ARGV[0]; | |
if(not defined $serverip){ | |
$serverip = '192.168.46.114'; | |
}; | |
$socket = new IO::Socket::INET ( | |
PeerHost => $serverip, | |
PeerPort => 'time', | |
Proto => 'tcp', | |
) or die "$!\n"; | |
@nettime = localtime( unpack("N", <$socket>)); | |
# @nettime = localtime( unpack("N", $_)); | |
# nettime count seconds from 1900 | |
# localtime count second from 1970 | |
@nettime[5]-=70; | |
# Why day of month one less? | |
@nettime[3]+=1; | |
print strftime("TCP: %F %T",@nettime) . "\n"; | |
$socketudp = new IO::Socket::INET ( | |
PeerHost => $serverip, | |
PeerPort => 'time', | |
Proto => 'udp', | |
Type => SOCK_DGRAM, | |
) or die "$!\n"; | |
$socketudp->send(""); | |
$udpbuff; | |
$readedlength = $socketudp->read($udpbuff,4); | |
print("readed from udp socket " . $readedlength . " bytes\n"); | |
@nettimeudp = localtime( unpack("N", $udpbuff)); | |
@nettimeudp[5]-=70; | |
@nettimeudp[3]+=1; | |
print strftime("UDP: %F %T",@nettimeudp) . "\n"; | |
print "time: " . time . "\n"; | |
### print unpack("N",$_) . "\n"; | |
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