gettydefs(4)
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gettydefs File Format
speed and terminal settings used by getty
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DESCRIPTION
The /etc/gettydefs file contains information used by getty(1m) to
set up the speed and terminal settings for a terminal line. It
supplies information on what the login prompt should look like.
It also supplies the speed to try next if the user indicates the
current speed is not correct by typing a <break> character.
Each entry in /etc/gettydefs has the following format:
label# initial-flags # final-flags # login-prompt #next-
label
Each entry is followed by a blank line. The various fields can
contain quoted characters of the form \b, \n, \c, etc., as well
as \nnn, where nnn is the octal value of the desired character.
The various fields are:
label This is the string against which getty tries to
match its second argument. It is often the speed,
such as 1200, at which the terminal is supposed to
run, but it need not be (see below).
initial-flags These flags are the initial ioctl(2) settings to
which the terminal is to be set if a terminal type
is not specified to getty. The flags that getty
understands are a subset of those described in
termio(7). Refer to this man page for the
meanings of the flags. These flags are also
available via stty(1)). However, in getty,
uppercase flag names are used. The flags are:
For input modes:
IGNBRK BRKINT IGNPAR PARMRK INPCK ISTRIP INLCR IGNCR ICRNL IUCLC
IXON IXANY IXOFF
For output modes:
OPOST OLCUC ONLCR OCRNL ONOCR ONLRET OFILL OFDEL
NL0 NL1 CR0 CR1 CR2 CR3 TAB0 TAB1 TAB2 TAB3 BS0 BS1
VT0 VT1 FF0 FF1
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gettydefs(4)
For control modes:
B0 B110 B134 B150 B300 B600 B1200 B1800 B2400 B4800
B9600 B19200 B38400 EXTA EXTB CS5 CS6 CS7 CS8 CSTOPB
CREAD PARENB PARODD HUPCL CLOCAL LOBLK
For line modes:
ISIG ICANON XCASE ECHO ECHOE ECHOK ECHONL NOFLSH
Control characters:
INTR QUIT ERASE KILL EOF EOL EOL2 MIN TIME OBS
When setting control characters, use two words as in: KILL u
Note that you may specify control characters using the stty
format: x for control-x.
Normally only the speed flag is required in the initial-flags.
Getty automatically sets the terminal to raw input mode and takes
care of most of the other flags. The initial-flag settings
remain in effect until getty executes login(1).
final-flags
These flags take the same values as the initial-flags and
are set just prior to getty executes login. The speed flag
is again required. The composite flag SANE takes care of
most of the other flags that need to be set so that the
processor and terminal are communicating in a rational
fashion. The other two commonly specified final-flags are
TAB3, so that tabs are sent to the terminal as spaces, and
HUPCL, so that the line is hung up on the final close.
login-prompt
This entire field is printed as the login-prompt. Unlike
the above fields where white space is ignored (a space, tab
or new-line), they are included in the login-prompt field.
next-label
If this entry does not specify the desired speed, indicated
by the user typing a <break> character, then getty will
search for the entry with next-label as its label field and
set up the terminal for those settings. Usually, a series
of speeds are linked together in this fashion, into a closed
set; For instance, 2400 linked to 1200, which in turn is
linked to 300, which finally is linked to 2400.
If getty is called without a second argument, then the first
entry of /etc/gettydefs is used, thus making the first entry of
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gettydefs(4)
/etc/gettydefs the default entry. It is also used if getty can
not find the specified label. If /etc/gettydefs itself is
missing, there is one entry built into the command which will
bring up a terminal at 300 baud.
It is strongly recommended that after making or modifying
/etc/gettydefs, it be run through getty with the check option to
be sure there are no errors.
FILES
/etc/gettydefs
SEE ALSO
ioctl(2).
att_stty(1), getty(1m), termio(7) in the System Manager's
Reference to the DG/UX System.
login(1) in the User's Reference to the DG/UX System.
BUGS
getty does not understand berk_stty(1) modes.
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