tree 26dad13048cc8f60c00debbe1ea64e74164ed218
parent e690f565fd1926885f2b12c2aee2dddc5ba99983
author Chia-chi Yeh <chiachi@android.com> 1316713985 -0700
committer Chia-chi Yeh <chiachi@android.com> 1316713985 -0700

ip-up-vpn: Handle the case where INTERNAL_NETMASK4 is empty.

Also set the errno when inet_pton() fails.

Change-Id: Ib98ed593fe1ceabecef4b92bf939f44ecf9fa665