dhcpcd-discuss

Hi

On 18/01/2018 23:48, jobhunts02@xxxxxxx wrote:
> I see that dhcpcd-7.0.0 uses ULL’s.  Can it be configured to run on a 32-bit system?  If so, how?  If not, what version of dhcpcd would I need to use?  I want support for IPv6.

dhcpcd works fine on 32-bits.
In fact my current main dev platform is NetBSD/i386 thanks to my 2yold 
ripping the keys out of my x86_64 laptop.

How does this work? Well, modern C (as of C99 I think) says that the 
dialect must support unsigned long long and how this works on the 
hardware is up to the compiler. As you can't put a 64-bit number into a 
32-bit one, you need to use 2x 32-bit numbers. This isn't optimal in 
terms of speed and size - ideally we keep things at or below 32-bits on 
on a 32-bit platform, but frankly it's very convenient and an easier 
code path to use 64-bits as they are available.

Roy