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Annotation of cci/usr/src/man/man8/getty.8, revision 1.1

1.1     ! root        1: .TH GETTY 8  "18 July 1983"
        !             2: .UC 4
        !             3: .SH NAME
        !             4: getty  \- set terminal mode
        !             5: .SH SYNOPSIS
        !             6: .B /etc/getty
        !             7: [ type ]
        !             8: .SH DESCRIPTION
        !             9: .I Getty
        !            10: is invoked by
        !            11: .IR  init (8)
        !            12: immediately after a terminal is opened,
        !            13: following the making of a connection.
        !            14: While reading the name
        !            15: .I getty
        !            16: attempts to adapt the system to the speed and type of terminal
        !            17: being used.
        !            18: .PP
        !            19: .I Init
        !            20: calls
        !            21: .I getty
        !            22: with an argument specified by the
        !            23: .I ttys
        !            24: file entry for the terminal line.
        !            25: The argument can be used to make
        !            26: .I getty
        !            27: treat the line specially.
        !            28: This argument is used as an index into the
        !            29: .IR gettytab (5)
        !            30: database, to determine the characteristics of the line.
        !            31: If there is no argument, or there is no such table, the
        !            32: .B default
        !            33: table is used.
        !            34: If there is no
        !            35: .B /etc/gettytab
        !            36: a set of system defaults is used.
        !            37: If indicated by the table located,
        !            38: .I getty
        !            39: will clear the terminal screen,
        !            40: print a banner heading,
        !            41: and prompt for a login name.
        !            42: Usually either the banner of the login prompt will include
        !            43: the system hostname.
        !            44: Then the user's name is read, a character at a time.
        !            45: If a null character is received, it is assumed to be the result
        !            46: of the user pushing the `break' (`interrupt') key.
        !            47: The speed is usually then
        !            48: changed and the `login:' is typed again;
        !            49: a second `break' changes the speed again and the `login:'
        !            50: is typed once more.
        !            51: Successive `break' characters cycle through the
        !            52: some standard set of speeds.
        !            53: .PP
        !            54: The user's name is terminated by a new-line or
        !            55: carriage-return character.
        !            56: The latter results in the system being set to
        !            57: treat carriage returns appropriately (see
        !            58: .IR  tty (4)).
        !            59: .PP
        !            60: The user's name is scanned to see if
        !            61: it contains any lower-case alphabetic characters; if not,
        !            62: and if the name is nonempty, the
        !            63: system is told to map any future upper-case characters
        !            64: into the corresponding lower-case characters.
        !            65: .PP
        !            66: Finally, login is called with the user's name as argument.
        !            67: .PP
        !            68: Most of the default actions of
        !            69: .I getty
        !            70: can be circumvented, or modified, by a suitable
        !            71: .I gettytab
        !            72: table.
        !            73: .PP
        !            74: .I Getty
        !            75: can be set to timeout after some interval,
        !            76: which will cause dial up lines to hang up
        !            77: if the login name is not entered reasonably quickly.
        !            78: .SH FILES
        !            79: /etc/gettytab
        !            80: .SH "SEE ALSO"
        !            81: gettytab(5), init(8), login(1), ioctl(2), tty(4), ttys(5).
        !            82: .SH BUGS
        !            83: Currently, the format of
        !            84: .B /etc/ttys
        !            85: limits the permitted table names to a single character,
        !            86: this should be expanded.
        !            87: .PP
        !            88: .B /etc/ttys
        !            89: should be replaced completely.

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