From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olaf Hering Subject: Re: [PATCH 10/17] Tools: hv: Gather ipv[4,6] gateway information Date: Tue, 24 Jul 2012 18:53:59 +0200 Message-ID: <20120724165359.GA8409@aepfle.de> References: <1343145672-3641-1-git-send-email-kys@microsoft.com> <1343145701-3691-1-git-send-email-kys@microsoft.com> <1343145701-3691-10-git-send-email-kys@microsoft.com> <20120724092914.60f3d90a@nehalam.linuxnetplumber.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Content-Disposition: inline In-Reply-To: <20120724092914.60f3d90a@nehalam.linuxnetplumber.net> Sender: linux-kernel-owner@vger.kernel.org To: Stephen Hemminger Cc: "K. Y. Srinivasan" , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org, apw@canonical.com, netdev@vger.kernel.org, ben@decadent.org.uk List-Id: virtualization@lists.linuxfoundation.org On Tue, Jul 24, Stephen Hemminger wrote: > On Tue, 24 Jul 2012 09:01:34 -0700 > "K. Y. Srinivasan" 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 This also has the benefit that ip is not called with absolute path, now that distros move binaries around. Olaf