remote
—
remote host description file
The systems known by tip(1) and their
attributes are stored in an ASCII file which is structured as decribed by
capfile(5). Each line in the
file provides a description for a single system. Fields are
separated by a colon (“:”). Lines ending in a \ character with
an immediately following newline are continued on the next line.
The first entry is the name(s) of the host system. If there is
more than one name for a system, the names are separated by vertical bars.
After the name of the system comes the fields of the description. A field
name followed by an `=' sign indicates a string value follows. A field name
followed by a `#' sign indicates a following numeric value.
Entries named “tip*” and “cu*” are
used as default entries by
tip(1), and the
cu(1) interface to
tip(1), as follows. When
tip(1) is invoked with only a
phone number, it looks for an entry of the form “tip300”,
where 300 is the baud rate with which the connection is to be made. When the
cu(1) interface is used, entries
of the form “cu300” are used.
Capabilities are either strings (str), numbers (num), or boolean flags (bool). A
string capability is specified by capability=value; for
example, “dv=/dev/harris
”. A numeric
capability is specified by capability#value; for example,
“xa#99
”. A boolean capability is
specified by simply listing the capability.
at
- (str) Auto call unit type.
br
- (num) The baud rate used in establishing a connection to the remote host.
This is a decimal number. The default baud rate is 300 baud.
cm
- (str) An initial connection message to be sent to the remote host. For
example, if a host is reached through a port selector, this might be set
to the appropriate sequence required to switch to the host.
cu
- (str) Call unit if making a phone call. Default is the same as the `dv'
field.
dc
- (bool) This host is directly connected, and tip should not expect carrier
detect to be high, nor should it exit if carrier detect drops.
di
- (str) Disconnect message sent to the host when a disconnect is requested
by the user.
du
- (bool) This host is on a dial-up line.
dv
- (str) UNIX device(s) to open to establish a
connection. If this file refers to a terminal line,
tip(1) attempts to perform an
exclusive open on the device to ensure only one user at a time has access
to the port.
el
- (str) Characters marking an end-of-line. The default is
NULL
. `~' escapes are only recognized by
tip(1) after one of the
characters in `el', or after a carriage-return.
fs
- (str) Frame size for transfers. The default frame size is equal to
BUFSIZ
.
hd
- (bool) The host uses half-duplex communication, local echo should be
performed.
hf
- (bool) Use hardware (RTS/CTS) flow control.
ie
- (str) Input end-of-file marks. The default is
NULL
.
oe
- (str) Output end-of-file string. The default is
NULL
. When
tip(1) is transferring a file,
this string is sent at end-of-file.
pa
- (str) The type of parity to use when sending data to the host. This may be
one of even, odd,
none, zero (always set bit 8 to zero),
one (always set bit 8 to one). The default is even
parity.
pn
- (str) Telephone number(s) for this host. If the telephone number field
contains an @ sign, tip(1)
searches the file /etc/phones file for a list of
telephone numbers; see
phones(5).
tc
- (str) Indicates that the list of capabilities is continued in the named
description. This is used primarily to share common capability
information.
Here is a short example showing the use of the capability
continuation feature:
UNIX-1200:\
:dv=/dev/cau0:el=^D^U^C^S^Q^O@:du:at=ventel:ie=#$%:oe=^D:br#1200:
arpavax|ax:\
:pn=7654321%:tc=UNIX-1200
- /etc/remote
- The
remote
host description file resides in
/etc.
The remote
file format appeared in
4.2BSD.