** Also affects: iputils (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: iputils (Ubuntu Focal)
Status: New => Confirmed
** Changed in: iputils (Ubuntu Focal)
Importance: Undecided => Low
** Changed in: iputils (Ubuntu)
Importance: Undecided => Low
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Packages, which is subscribed to iputils in Ubuntu.
https://bugs.launchpad.net/bugs/1953014
Title:
Return code for unsolicited arping is 1 instead of 0
Status in iputils package in Ubuntu:
Confirmed
Status in iputils source package in Focal:
Confirmed
Bug description:
When running a gratuitous / unsolicited arp via "arping -U" on Ubuntu Focal
a return code of 1 is given, instead of always 0 (as there is no arp reply
expected).
Focal:
--- cut ---
# arping -U -c1 -I eth0 127.0.0.1; echo "ReturnCode: $?"
ARPING 127.0.0.1 from 127.0.0.1 eth0
Sent 1 probes (1 broadcast(s))
Received 0 response(s)
ReturnCode: 1
# arping -V
arping from iputils s20190709
--- cut ---
see corresponding source at
https://github.com/iputils/iputils/blob/13e00847176aa23683d68fce1d17ffb523510946/arping.c#L302.
On Ubuntu Bionic this worked fine (and also does on Ubuntu Hirsute again BTW):
--- cut ---
arping -U -c 1 -I eth0 127.0.0.1; echo "ReturnCode: $?"
ARPING 127.0.0.1 from 127.0.0.1 eth0
Sent 1 probes (1 broadcast(s))
Received 0 response(s)
ReturnCode: 0
# arping -V
arping utility, iputils-s20161105
--- cut ---
see corresponding source for that version at
https://github.com/iputils/iputils/blob/bffc0e957b98d626ab4cea218c89251201425442/arping.c#L329
or for the version on Hirsute at
https://github.com/iputils/iputils/blob/cc16da6b574ce6637f3e6e9ab3c1a728663006ff/arping.c#L302
As you can see by looking at the source arping always statically
returns a "0" for unsolicited.
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