upstream/opnsense-src
1
0
Fork 0
mirror of https://github.com/opnsense/src.git synced 2026-06-09 00:32:25 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Document the `new' fdesc--now that it belongs only on /dev/fd, remove all

Browse source 
non-/dev/fd related documentation (such as that for stdin, stdout, tty).

Update the fstab line to refer to /dev/fd instead of /dev.
This commit is contained in:
Chris Costello 2000-05-11 22:20:23 +00:00
parent 38edb6a32f
commit 08896eb5ec
2 changed files with 6 additions and 82 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

44
share/man/man5/fdesc.5
View file

@ -45,28 +45,16 @@
.Nm fdesc
.Nd file-descriptor file system
.Sh SYNOPSIS
fdesc /dev fdesc rw 0 0
fdesc /dev/fd fdesc rw 0 0
.Sh DESCRIPTION
The file-descriptor file system, or
.Nm fdesc ,
provides access to the per-process file descriptor
namespace in the global filesystem namespace.
The conventional mount point is
.Pa /dev
and the filesystem should be union mounted in order to augment,
rather than replace, the existing entries in
.Pa /dev .
.Pa /dev/fd .
.Pp
The contents of the mount point are
.Pa fd ,
.Pa stderr ,
.Pa stdin ,
.Pa stdout
and
.Pa tty .
.Pp
.Pa fd
is a directory whose contents
The file system's contents
appear as a list of numbered files
which correspond to the open files of the process reading the
directory.
@ -89,21 +77,6 @@ fd = fcntl(0, F_DUPFD, 0);
.Pp
are equivalent.
.Pp
The files
.Pa /dev/stdin ,
.Pa /dev/stdout
and
.Pa /dev/stderr
appear as symlinks to the relevant entry in the
.Pa /dev/fd
sub-directory.
Opening them is equivalent to the following calls:
.Bd -literal -offset indent
fd = fcntl(STDIN_FILENO, F_DUPFD, 0);
fd = fcntl(STDOUT_FILENO, F_DUPFD, 0);
fd = fcntl(STDERR_FILENO, F_DUPFD, 0);
.Ed
.Pp
Flags to the
.Xr open 2
call other than
@ -112,22 +85,11 @@ call other than
and
.Dv O_RDWR
are ignored.
.Pp
The
.Pa /dev/tty
entry is an indirect reference to the current process's controlling terminal.
It appears as a named pipe (FIFO) but behaves in exactly the same way as
the real controlling terminal device.
.Sh FILES
.Bl -tag -width /dev/stderr -compact
.It Pa /dev/fd/#
.It Pa /dev/stdin
.It Pa /dev/stdout
.It Pa /dev/stderr
.It Pa /dev/tty
.El
.Sh SEE ALSO
.Xr tty 4 ,
.Xr mount_devfs 8 ,
.Xr mount_fdesc 8
.Sh HISTORY

44
share/man/man5/fdescfs.5
View file

@ -45,28 +45,16 @@
.Nm fdesc
.Nd file-descriptor file system
.Sh SYNOPSIS
fdesc /dev fdesc rw 0 0
fdesc /dev/fd fdesc rw 0 0
.Sh DESCRIPTION
The file-descriptor file system, or
.Nm fdesc ,
provides access to the per-process file descriptor
namespace in the global filesystem namespace.
The conventional mount point is
.Pa /dev
and the filesystem should be union mounted in order to augment,
rather than replace, the existing entries in
.Pa /dev .
.Pa /dev/fd .
.Pp
The contents of the mount point are
.Pa fd ,
.Pa stderr ,
.Pa stdin ,
.Pa stdout
and
.Pa tty .
.Pp
.Pa fd
is a directory whose contents
The file system's contents
appear as a list of numbered files
which correspond to the open files of the process reading the
directory.
@ -89,21 +77,6 @@ fd = fcntl(0, F_DUPFD, 0);
.Pp
are equivalent.
.Pp
The files
.Pa /dev/stdin ,
.Pa /dev/stdout
and
.Pa /dev/stderr
appear as symlinks to the relevant entry in the
.Pa /dev/fd
sub-directory.
Opening them is equivalent to the following calls:
.Bd -literal -offset indent
fd = fcntl(STDIN_FILENO, F_DUPFD, 0);
fd = fcntl(STDOUT_FILENO, F_DUPFD, 0);
fd = fcntl(STDERR_FILENO, F_DUPFD, 0);
.Ed
.Pp
Flags to the
.Xr open 2
call other than
@ -112,22 +85,11 @@ call other than
and
.Dv O_RDWR
are ignored.
.Pp
The
.Pa /dev/tty
entry is an indirect reference to the current process's controlling terminal.
It appears as a named pipe (FIFO) but behaves in exactly the same way as
the real controlling terminal device.
.Sh FILES
.Bl -tag -width /dev/stderr -compact
.It Pa /dev/fd/#
.It Pa /dev/stdin
.It Pa /dev/stdout
.It Pa /dev/stderr
.It Pa /dev/tty
.El
.Sh SEE ALSO
.Xr tty 4 ,
.Xr mount_devfs 8 ,
.Xr mount_fdesc 8
.Sh HISTORY