ports/176439: net/fping: Possible Fping incompatibility with FreeBSD

[Jason Harris]

The following reply was made to PR ports/176439; it has been noted by GNATS.

From: Jason Harris <jharris at widomaker.com>
To: bug-followup at FreeBSD.org
Cc: Raynaud Alexandre <alexandre.raynaud at sallanches.fr>,
        Jason Harris <jharris at widomaker.com>
Subject: Re: ports/176439: net/fping: Possible Fping incompatibility with
 FreeBSD
Date: Tue, 5 Mar 2013 09:36:54 -0400

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 On Mon, Mar 04, 2013 at 08:33:43AM -0400, Jason Harris wrote:
 
 > The difference is if the unreachable IP is in the arp cache when fping st=
 arts.
 
 > The OP (Raynaud Alexandre) says this causes problems for zabbix, but only=
  on FreeBSD.
 =20
 This [MAINTAINER-approved/written] patch solves the reported inconsistency =
 based on
 the state of the ARP cache:
 
   %fping 10.0.1.99 ; fping 10.0.1.99 ; fping 10.0.1.99 ; fping 10.0.1.99
   10.0.1.99 is unreachable
   10.0.1.99 is unreachable
   10.0.1.99 is unreachable
   10.0.1.99 is unreachable
 
 Note that you need to "mkdir files && mv patch-fping.c files/" and then rei=
 nstall fping.
 
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 diff -r 830ac78f8d7f Makefile
 --- a/Makefile	Tue Mar 05 08:51:42 2013 -0400
 +++ b/Makefile	Tue Mar 05 08:53:29 2013 -0400
 @@ -8,6 +8,7 @@
 =20
  PORTNAME=3D	fping
  PORTVERSION=3D	3.4
 +PORTREVISION=3D	1
  CATEGORIES=3D	net ipv6
  MASTER_SITES=3D   http://fping.org/dist/
 =20
 diff -r 830ac78f8d7f files/patch-fping.c
 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
 +++ b/files/patch-fping.c	Tue Mar 05 08:53:29 2013 -0400
 @@ -0,0 +1,16 @@
 +diff -r c564b3055165 src/fping.c
 +--- src/fping.c	Tue Mar 05 08:13:11 2013 -0400
 ++++ src/fping.c	Tue Mar 05 08:45:33 2013 -0400
 +@@ -1572,7 +1572,11 @@
 +     n =3D sendto( s, buffer, ping_pkt_size, 0,
 +         ( struct sockaddr* )&h->saddr, sizeof( FPING_SOCKADDR ) );
 +=20
 +-    if( n < 0 || n !=3D ping_pkt_size )
 ++    if(( n < 0 || n !=3D ping_pkt_size)
 ++#if defined( EHOSTDOWN )
 ++                                      && errno !=3D EHOSTDOWN
 ++#endif
 ++                                                            )
 +     {
 +         if( verbose_flag || unreachable_flag )
 +         {
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 --=20
 Jason Harris           |  PGP:  This _is_ PGP-signed, isn't it?
 jharris at widomaker.com _|_ Got photons? (TM), (C) 2004
 
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