Increasing MAXLOGNAME from 17 to 33

[Konstantin Belousov]

On Tue, Nov 13, 2012 at 12:18:06PM +0100, Baptiste Daroussin wrote:
> Hi,
> 
> I want to increase MAXLOGNAME in sys/param.h from 17 to 33 to allow 32-character
> long usernames, the PR: misc/161091 and misc/133926 already requested for it.
> 
> utmpx already allow 32 character long user names.
> 
> I plan to bump the __FreeBSD_version at the same time because of the ABI
> breakage.
> 
> This is simplify life of lots administrator, this value, is a common value for
> other operating systems.
> 
> Do anyone have objections about it?

Yes, I have. Do not break the ABI, it is plain prohibited.
You might consider increasing the constant only if providing ABI
compatibility shims.

In fact, the cursory look over the whole base system indicates that ABI
breakage might be not that big and could be mitigated with relatively
limited amount of the efforts.
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