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@xxxxxxxxxxxxxx>
---
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
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