linux-kernel - Re: [PATCH 10/17] Tools: hv: Gather ipv[4,6] gateway information

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Message-ID: <20120724092914.60f3d90a@nehalam.linuxnetplumber.net>
Date:	Tue, 24 Jul 2012 09:29:14 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	"K. Y. Srinivasan" <kys@...rosoft.com>
Cc:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, virtualization@...ts.osdl.org,
	olaf@...fle.de, apw@...onical.com, netdev@...r.kernel.org,
	ben@...adent.org.uk
Subject: Re: [PATCH 10/17] Tools: hv: Gather ipv[4,6] gateway information

On Tue, 24 Jul 2012 09:01:34 -0700
"K. Y. Srinivasan" <kys@...rosoft.com> wrote:

> +	memset(cmd, 0, sizeof(cmd));
> +	strcat(cmd, "/sbin/ip -f inet  route | grep -w ");
> +	strcat(cmd, if_name);
> +	strcat(cmd, " | awk '/default/ {print $3 }'");


Much simpler method:

ip route show match 0/0

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