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| author | Alexander Aring <aar@pengutronix.de> | 2016-06-14 08:55:06 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-06-15 07:43:01 +0200 |
| commit | b0e1847f134e7ec90f41623a8cbe6ce2f941ddde (patch) | |
| tree | c7400471969517c31e957edf6af1b81f9c58789c /net | |
| parent | 6ac698af96a59b08e3ede5fea4fa8bf23e847a33 (diff) | |
| download | barebox-b0e1847f134e7ec90f41623a8cbe6ce2f941ddde.tar.gz barebox-b0e1847f134e7ec90f41623a8cbe6ce2f941ddde.tar.xz | |
ifup: fix handling when ip env is not given
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 <aar@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ifup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ifup.c b/net/ifup.c index f22afc9a53..30ac3f5861 100644 --- a/net/ifup.c +++ b/net/ifup.c @@ -96,6 +96,9 @@ 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) |