iputils/005-arping-exit-0-if-running-in-deadline-mode-and-we-see.patch

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From bf2900d716397734136ec3014a591281504aa00b Mon Sep 17 00:00:00 2001
From: Noah Meyerhans <noahm@debian.org>
Date: Wed, 16 Feb 2022 22:27:49 -0800
Subject: [PATCH 2/2] arping: exit 0 if running in deadline mode and we see
replies
The arping behavior when running in deadline mode without a packet
count (-w without -c) should match that of ping: any replies indicate
that the host is up and should result in a zero (success) exit status.
Fixes: https://github.com/iputils/iputils/issues/392
Closes: https://github.com/iputils/iputils/pull/395
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Signed-off-by: Noah Meyerhans <noahm@debian.org>
(cherry picked from commit 854873bdd28fcdd9cc3fe0c2d29c083a07d07a86)
---
arping.c | 2 ++
doc/arping.xml | 14 +++++++-------
2 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/arping.c b/arping.c
index 8059517..6f94e90 100644
--- a/arping.c
+++ b/arping.c
@@ -828,6 +828,8 @@ static int event_loop(struct run_state *ctl)
else if (ctl->dad && ctl->quit_on_reply)
/* Duplicate address detection mode return value */
rc |= !(ctl->brd_sent != ctl->received);
+ else if (ctl->timeout && !(ctl->count > 0))
+ rc |= !(ctl->received > 0);
else
rc |= (ctl->sent != ctl->received);
return rc;
diff --git a/doc/arping.xml b/doc/arping.xml
index 711718f..9adbc0c 100644
--- a/doc/arping.xml
+++ b/doc/arping.xml
@@ -202,13 +202,13 @@ xml:id="man.arping">
<listitem>
<para>Specify a timeout, in seconds, before
<command>arping</command> exits regardless of how many
- packets have been sent or received. In this case
- <command>arping</command> does not stop after
- <emphasis remap='I'>count</emphasis> packet are sent, it
- waits either for
- <emphasis remap='I'>deadline</emphasis> expire or until
- <emphasis remap='I'>count</emphasis> probes are
- answered.</para>
+ packets have been sent or received. If any replies are
+ received, exit with status 0, otherwise status 1. When
+ combined with the <emphasis remap="I">count</emphasis>
+ option, exit with status 0 if <emphasis
+ remap="I">count</emphasis> replies are received before the
+ deadline expiration, otherwise status 1.
+ </para>
</listitem>
</varlistentry>
<varlistentry>
--
2.46.0