HP-UX Reference (11i v2 07/12) - 1M System Administration Commands A-M (vol 3)

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getty(1M) getty(1M)

Operation

When given no optional arguments, getty sets the speed of the interface to 300 baud, speciﬁes that raw

mode is to be used (awaken on every character), that echo is to be suppressed, that either parity is to be

allowed, that newline characters are to be converted to carriage-return-linefeed, and that tab expansion is

to be performed on standard output. It types the login message before reading the user’s name a character

at a time. If a null character (or framing error) is received, it is assumed to be the result of the user push-

ing the break key. This causes

getty to attempt the next speed in the series. The series that

getty

tries is determined by what it ﬁnds in

/etc/gettydefs.

The user’s name is terminated by a newline or carriage-return character. The latter results in the system

being set to treat carriage returns appropriately (see ioctl(2)).

The user’s name is scanned to see if it contains any lowercase alphabetic characters; if not, and if the name

is nonempty, the system is told to map any future uppercase characters into the corresponding lowercase

characters.

getty also understands the "standard" ESS2 protocols for erasing, killing and aborting a line, and ter-

minating a line. If getty sees the ESS erase character (

_), or kill character ($), or abort character (&), or

the ESS line terminators (

/ or

!), it arranges for this set of characters to be used for these functions.

With the

-f option, getty obtains the special control characters for the terminal from the

/dev/ttyconf ﬁle. This terminal setting will be inherited by login.

Finally, login is called with the user’s name as an argument. Additional arguments can be typed after

the login name. These are passed to login, which places them in the environment (see login(1)).

Check Option

A check option is provided. When

getty is invoked with the -c ﬁle option, it scans ﬁle as if scanning

/etc/gettydefs and prints the results on standard output. If there are any unrecognized modes or

improperly constructed entries,

getty reports these. If the entries are correct, getty prints out the

values of the various ﬂags. See ioctl(2) for an interpretation of values. Note that some values are added to

the ﬂags automatically.

WARNINGS

While getty does understand simple single character quoting conventions, it is not possible to quote the

special control characters that getty uses to determine when the end of the line has been reached, which

protocol is being used, and what the erase character is.

DEPENDENCIES

HP2334 MultiMux

The modem control parameter MRTS must be present in the /etc/gettydefs

ﬁle when using getty

in conjunction with an HP2334 or HP2335 MultiMux to ensure that the RTS modem control signal is

asserted correctly.

Example:

9600# B9600 HUPCL PARENB MRTS # B9600 SANE PARENB ISTRIP IXANY #login: #19200

MRTS

is not intended for use with devices other than the HP2334 or HP2335 MultiMux.

FILES

/dev/ttyconf

/etc/gettydefs

/etc/issue