What is the source of the implementation of ping is Cygwin using?

It apparently isn't GNU ping (because in GNU ping, the number of pings to send is decided with -c X, while in Cygwin ping, it's decided with -n X).

Is it a custom ping? BusyBox ping? Toybox ping? NetBSD ping? OpenBSD ping? FreeBSD ping? Something else?


It's Windows ping. Just run:

which ping 

You'll get:


Cygwin ping is available on ping package from inetutils source

$ which ping

$ cygcheck -f `which ping`

x86_64 $ ping --help
Usage: ping [OPTION...] HOST ...
Send ICMP ECHO_REQUEST packets to network hosts.

 Options controlling ICMP request types:
      --address              send ICMP_ADDRESS packets (root only)
      --echo                 send ICMP_ECHO packets (default)
      --mask                 same as --address
      --timestamp            send ICMP_TIMESTAMP packets
  -t, --type=TYPE            send TYPE packets

 Options valid for all request types:

  -c, --count=NUMBER         stop after sending NUMBER packets
  • 7
    You should use command -v ping, not which ping. Also see How to check if a program exists from a Bash script? and the discussion around Posix and environments.
    – jww
    Sep 10 '19 at 2:53
  • And which ping implementation is that?
    – OrangeDog
    Sep 10 '19 at 9:44
  • GNU gnu.org/software/inetutils
    – matzeri
    Sep 10 '19 at 22:02
  • @jww command -v ping and which ping produces exactly the same output on my system as the ping package is installed. Eventually you can use which -a ping
    – matzeri
    Sep 10 '19 at 22:08
  • @matzeri the point is it won't on everyone else's system
    – OrangeDog
    Sep 11 '19 at 16:18

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