open: make non-POSIX errno value more apparent

In the errno list, add an explicit note and reference to the note in the
STANDARDS section.

When O_NOFOLLOW is specified and the target is a symbolic link FreeBSD
sets errno to a value different than that specified by POSIX.  Commit
295159dfa3 added a note to this effect, but I missed it when reading
through the list of errno values.

PR:		214633
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D43618
This commit is contained in:
Ed Maste 2024-01-26 10:19:04 -05:00
parent b32d49cfba
commit ea6a6b63e1

View file

@ -481,6 +481,10 @@ The system file table is full.
.It Bq Er EMLINK
.Dv O_NOFOLLOW
was specified and the target is a symbolic link.
.Tn POSIX
specifies a different error for this case; see the note in
.Sx STANDARDS
below.
.It Bq Er ENXIO
The named file is a character special or block
special file, and the device associated with this special file
@ -643,6 +647,7 @@ is set, and the process is in capability mode.
.Sh STANDARDS
These functions are specified by
.St -p1003.1-2008 .
.Pp
.Fx
sets
.Va errno