term% cat index.txt FACED(9.5) FACED(9.5)
NAME
faced - network face server
SYNOPSIS
/usr/net/face.go
DESCRIPTION
The network face server provides a database of 48×48 bit icons and
other facial representations. It is implemented as a network file sys‐
tem similar to netfs(8).
The file system, conventionally mounted on /n/face, has a fixed three-
level hierarchy. The first level is a machine name, the second level a
user name, and the third level a resolution. Thus the file
/n/face/kwee/pjw/48x48x1 is the standard face icon (for user pjw) on
machine kwee: ..........................................
Many local users also have 512×512 byte high-resolution faces, named
512x512x8. Other resolutions may also be present for a particular
face. One-bit images are stored in the format used by icon(9.1);
eight-bit images are arrays of bytes. The directories for machines
sharing a user community, such as those on a Datakit node, are linked
together and given a name appropriate to the community. For example,
/n/face/kwee is a link to /n/face/astro.
To access the face for a mail name machine!uid take the result of the
first successful open from the following list of files:
/n/face/machine/uid/48x48x1
/n/face/misc./uid/48x48x1
/n/face/machine/unknown/48x48x1
/n/face/misc./unknown/48x48x1
The directory misc. holds faces for generic users such as root and
uucp. The face server is made available on a machine by running
/usr/net/face.go from rc(8).
The face server data is kept on kwee, and is administered by a pair of
ASCII files that associate related machines and faces. The machine ta‐
ble machine.tab attaches machines to communities; the line
kwee=astro
puts the machine kwee in community astro. The people table associates
a machine/user pair in the face server with a file on kwee;
astro/pjw=pjweinberger
causes the images stored in disk files named pjweinberger to be avail‐
able in the face server in directory /n/face/astro/pjw. As well, each
disk file used by the face server is linked (by its original name) into
the directory /n/face/48x48x1 or /n/face/512x512x8 for easy access to
all the images.
FILES
/n/kwee/usr/jerq/icon/face48 directory of low resolution faces
/n/kwee/t0/face/512x512x8 directory of high resolution faces
/n/kwee/usr/net/face/people.tab people/file equivalences
/n/kwee/usr/net/face/machine.tab machine/community equivalences
SEE ALSO
netfs(8), face(9.1), icon(9.1), sysmon(9.1)
BUGS
After updating the tables, an indeterminate time may pass before the
new faces are available.
All face server files are unwritable.
FACED(9.5)