Subject: bin/12113: ping: -w function and doc mismatch
To: None <firstname.lastname@example.org>
From: None <email@example.com>
Date: 02/02/2001 07:35:20
>Synopsis: ping: -w function and doc mismatch
>Arrival-Date: Fri Feb 02 07:38:00 PST 2001
>Originator: Jim Bernard
>Release: Feb. 2, 2001
System: NetBSD zoo 1.5R NetBSD 1.5R (ZOO-$Revision: 1.60 $) #0: Sat Jan 27 21:54:35 MST 2001 jim@zoo:/home/tmp/compile/sys/arch/i386/compile/ZOO i386
The man page says:
Specifies the number of seconds to wait for a response to a pack-
et before transmitting the next one. The default is 10.0.
but the behavior is for ping to terminate after maxwait seconds.
ping -w 3 your_favorite_host
or examine ping.c
I don't know which was the originally intended behavior, so it's not
immediately clear whether the code or the documentation is in error.
(Though it looks like the code was quite intentionally designed to
do exactly what it does.) This feature and its documentation were
introduced in July, 1995 by ghudson (rev. 1.8 of ping.8, rev. 1.19
of ping.c), so it might be worthwhile to ask him what was his
intention. I did notice on a Red Hat Linux system that uses a
version of the same code (iputils-ss990107) that the man page had
been changed to read:
Specify a timeout, in seconds, before ping exits regardless of
how many packets have been sent or received.