Package: inetutils-ping
Version: 2:1.9.4-7
Severity: normal
Dear Maintainer,
ping and ping6 from this packages say in their --help:
-i, --interval=NUMBER wait NUMBER seconds between sending each packet
and ping6(1) manpage:
-i, --interval=number
Wait number seconds between sending each packet.
and ping(1) manpage:
-i, --interval wait
Wait wait seconds between sending each packet. The default is to
wait for one second between each packet.
This option is incompatible with the -f option.
Ignoring for a moment inconsistent style of documenation, I think the
wait is actually in milliseconds.
# time ping6 --numeric --interval=1000 --count=3 google.com
PING google.com (2a00:1450:400a:803::200e): 56 data bytes
64 bytes from 2a00:1450:400a:803::200e: icmp_seq=0 ttl=55 time=0.943 ms
64 bytes from 2a00:1450:400a:803::200e: icmp_seq=1 ttl=55 time=0.751 ms
64 bytes from 2a00:1450:400a:803::200e: icmp_seq=2 ttl=55 time=0.791 ms
--- google.com ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.751/0.828/0.943/0.083 ms
real 0m2.006s
user 0m0.002s
sys 0m0.000s
#
That is good and useful for subsecond pings counts, but documentation and
--help text seems not accurate. It is also worth nothing that it must be
an integer number of miliseconds, i.e. 0.5 will not work.
Also doing --interval=0 sends pings very quickly, which is almost
equivalent to -f, which is disabled for non users. IMHO, interval smaller
than 50ms should be protected by the same mechanism probably. Not that it
is a "real protection" (because one can just spawn 1000 of processes to
do it anyway), but I guess consistency would be useful :)
Thanks! :)
-- System Information:
Debian Release: buster/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.19.0-2-amd64 (SMP w/32 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages inetutils-ping depends on:
ii libc6 2.28-8
ii libidn11 1.33-2.2
ii netbase 5.5
inetutils-ping recommends no packages.
inetutils-ping suggests no packages.
-- no debconf information
