poink 1.6

poink provides a TCP/IP-based ping tool.

poink is a TCP/IP-based ping implementation that does not require special privileges and is designed for multiuser shell systems. It is intended to be a secure replacement for the standard IPv4 network monitoring tool.

Not much to say... This is a nosuid, so quite secure, version of ping utility
for IPv4. It uses dirty trick - TCP linear SYN/RST challenge instead of
ICMP echo/echo reply. It wont allow any flood-pings (others than connect
flood you could achieve anyway), security compromises etc.

Currently, basic ping parameters are implemented (compatible with
original ping):

ping [ -i delay ] [ -c count ] [ -t timeout ] hostname

-i delay - delay between pings in seconds (default 1, min. 1)
-c count - number of packets to send (default: 0 - until break)
-t timeout - packet timeout in seconds (default: 4, min. 1)

NOTE: longer timeouts might result in slightly inaccurate results because of TCP/IP retransmits.

When finished or stopped with Ctrl+C (SIGINT), poink prints some statistics
about round-trip times, jest like the original ping does. Round-trip times
are displayed in miliseconds (1/1000 of second, ms), but unlike its setuid
counterpart, nosuid ping additionally displays time in microseconds
(1/1000000 of second, usec) if trip time is really low (well, I think that
more recent versions of ping are doing it now, too).

Currently, Linux is the only supported platform, but BSD port should
be really easy to develop.