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open.2: update description for O_PATH #1564

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open.2: update description for O_PATH #1564

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16 changes: 14 additions & 2 deletions lib/libsys/open.2
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Original file line number Diff line number Diff line change
Expand Up @@ -393,7 +393,12 @@ but advisory locking is not allowed
.It Xr dup 2
.It Xr close 2
.It Xr fstat 2
.It Xr fstatfs 2
.It Xr fchdir 2
.It Xr fchroot 2
.It Xr fexecve 2
.It Xr funlinkat 2
can be passed as the third argument
.It Dv SCM_RIGHTS
can be passed over a
.Xr unix 4
Expand All @@ -403,16 +408,23 @@ message
.It Xr kqueue 2
only with
.Dv EVFILT_VNODE
.It Xr readlinkat 2
.It Xr __acl_get_fd 2
.It Xr __acl_aclcheck_fd 2
.It Xr extattr 2
.It Xr capsicum 4
can be passed to
.Fn cap_*_limit
and
.Fn cap_*_get
system calls (such as
.Xr cap_rights_limit 2 ) .
.El
.Pp
Other operations like
.Xr read 2 ,
.Xr ftruncate 2 ,
and any other that operate on file and not on file descriptor (except
.Xr fstat 2 ),
.Xr fstat 2 ) ,
are not allowed.
.Pp
A file descriptor created with the
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