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Reject posix_devctl(2).

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Jonas 'Sortie' Termansen 2024-06-23 17:55:47 +02:00
parent 752c9b8aa2
commit 95481db488
1 changed files with 14 additions and 0 deletions
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14
share/man/man7/portability.7
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@ -185,6 +185,20 @@ is rejected in this operating system.
.Xr close 2
never fails with
.Ev EINTR on this operating system.
.Ss posix_devctl
.Xr ioctl 2
should be used instead.
POSIX 2024 defined this optional function as a replacement for
.Xr ioctl 2
but never defined any way for portable applications to actually use it.
The
.Fa dev_info_ptr
parameter is especially useless as its semantics are not defined, and often
the desired output does not necessarily fit in an int type.
The
.Xr ioctl 2
interface is fine and this alternative function is rejected in this operating
system as it is optional in POSIX 2024.
.Ss printf
.Xr printf 3
is implemented, however floating point formatting is not currently implemented