login_tty man page on FreeBSD

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LOGIN_TTY(3)		 BSD Library Functions Manual		  LOGIN_TTY(3)

NAME
     login_tty — prepare a tty for a new login session

LIBRARY
     System Utilities Library (libutil, -lutil)

SYNOPSIS
     #include <libutil.h>

     int
     login_tty(int fd);

DESCRIPTION
     The function login_tty() prepares a terminal for a new login session.
     The file descriptor fd passed to login_tty() must be opened for reading
     and writing on a terminal device.	It will be made the controlling termi‐
     nal for the calling process, after allocating a new session with
     setsid(2).	 This terminal device will also be made the standard input,
     standard output, and standard error output of the calling process.

RETURN VALUES
     The login_tty() function returns -1 if it could not make the device ref‐
     erenced by fd the controlling terminal of the calling process, and 0 oth‐
     erwise.

SEE ALSO
     dup2(2), ioctl(2), setsid(2), tty(4)

BSD			       December 29, 1996			   BSD
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