From: brabuhr@...
Date: 2010-01-23T13:10:43+09:00
Subject: Re: Use Ruby to make a MTU sweep utility (Ping)

On Fri, Jan 22, 2010 at 11:03 PM, Dale Ackerman <dale8458@gmail.com> wrote:
>> You could wrap the OS ping variants (Linux and Mac OS X are probably
>> identical, since both use the GNU utils, so you only have to check for
>> Windows) in your own code, and use that.
>>
>> They all should provide a means to modify packet size (Windows' ping.exe
>> does), so you can achieve your desired result.
>
> How would I wrap the command line utilities from ruby?  I am new to the
> ruby.

Simplistic example:

$ ping
usage: ping [-AaDdfnoQqRrv] [-c count] [-i wait] [-l preload] [-M mask | time]
            [-m ttl] [-p pattern] [-S src_addr] [-s packetsize]
            [-t timeout] [-z tos] host
       ping [-AaDdfLnoQqRrv] [-c count] [-I iface] [-i wait] [-l preload]
            [-M mask | time] [-m ttl] [-p pattern] [-S src_addr]
            [-s packetsize] [-T ttl] [-t timeout] [-z tos] mcast-group
$ irb
irb(main):001:0> count = 3
=> 3
irb(main):002:0> packetsize = 128
=> 128
irb(main):003:0> host = '127.0.0.1'
=> "127.0.0.1"
irb(main):004:0> `ping -c #{count} -s #{packetsize} #{host}`
=> "PING 127.0.0.1 (127.0.0.1): 128 data bytes\n136 bytes from
127.0.0.1: icmp_seq=0 ttl=64 time=0.171 ms\n136 bytes from 127.0.0.1:
icmp_seq=1 ttl=64 time=0.101 ms\n136 bytes from 127.0.0.1: icmp_seq=2
ttl=64 time=0.103 ms\n\n--- 127.0.0.1 ping statistics ---\n3 packets
transmitted, 3 packets received, 0% packet loss\nround-trip
min/avg/max/stddev = 0.101/0.125/0.171/0.033 ms\n"