From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1bCiGC-0003eM-E9 for barebox@lists.infradead.org; Tue, 14 Jun 2016 06:55:40 +0000 From: Alexander Aring Date: Tue, 14 Jun 2016 08:55:06 +0200 Message-Id: <20160614065506.25821-2-aar@pengutronix.de> In-Reply-To: <20160614065506.25821-1-aar@pengutronix.de> References: <20160614065506.25821-1-aar@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 2/2] ifup: fix handling when ip env is not given To: barebox@lists.infradead.org Cc: Alexander Aring This patch handles the ip env to "" if no ip env is given. Otherwise we get a NULL pointer derefence. Signed-off-by: Alexander Aring --- net/ifup.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/ifup.c b/net/ifup.c index 17e1b2f..59df069 100644 --- a/net/ifup.c +++ b/net/ifup.c @@ -94,6 +94,9 @@ int ifup(const char *name, unsigned flags) goto out; ip = getenv("ip"); + if (!ip) + ip = ""; + if (!strcmp(ip, "dhcp")) { ret = run_command("dhcp"); if (ret) -- 2.8.3 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox