Re: unable to set time very far in the future

[Jan Schaumann <jschauma%netmeister.org@localhost>]

RVP <rvp%SDF.ORG@localhost> wrote:

> There is a check in the kernel. In sys/kern/kern_time.c:
> 
>     190         /*
>     191          * The time being set to an unreasonable value will cause
>     192          * unreasonable system behaviour.
>     193          */
>     194         if (ts->tv_sec < 0 || ts->tv_sec > (1LL << 36))
>     195                 return EINVAL;

Regardless of how we arrived at this value, I think
our manual page should make note of settimeofday(2)
setting errno, so I'm proposing the attached diff.

Sound good?

-Jan

Index: gettimeofday.2
===================================================================
RCS file: /cvsroot/src/lib/libc/sys/gettimeofday.2,v
retrieving revision 1.29
diff -r1.29 gettimeofday.2
32c32
< .Dd December 8, 2015
---
> .Dd October 16, 2022
135a136,141
> .It Bq Er EINVAL
> .Fn settimeofday :
> .Ar tp.tv_sec
> is outside the range [0..2^36] or
> .Ar tp.tv_usec
> is outside the range [0..999,999].