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33 .Nd prepare a tty for a new login session
40 .Fn login_tty "int fd"
44 prepares a terminal for a new login session.
49 must be opened for reading and writing on a terminal device.
51 made the controlling terminal for the calling process, after allocating
54 This terminal device will also be made the standard input, standard output,
55 and standard error output of the calling process.
59 function returns -1 if it could not make the device referenced by
61 the controlling terminal of the calling process, and 0 otherwise.