Hi Shawn Routhier,

 

My customer request bind dhcp server on alias address on dhcp4, so we have a patch below to support it.

Please help to review this patch, thanks a lot.

 

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On linux, dhcp4 doesn't support listen on alias address when
its main interface has null ipaddr. dhcp3 support this function.
Because dhcp4 scan interface from /proc/net/dev, this is not enough.

 

On linux, both ioctl(,SIOCGIFCONF,) and
getifaddrs() could retrieve all ipaddrs on the linux system.

 

Below patch use getifaddrs as BSD as well.

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Thanks

Kong Wei