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Diffstat (limited to 'lib/libutil/login_tty.3')
-rw-r--r-- | lib/libutil/login_tty.3 | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/lib/libutil/login_tty.3 b/lib/libutil/login_tty.3 new file mode 100644 index 0000000..907b97c --- /dev/null +++ b/lib/libutil/login_tty.3 @@ -0,0 +1,65 @@ +.\" +.\" Copyright (c) 1996 Joerg Wunsch +.\" +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR +.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +.\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, +.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT +.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" " +.Dd December 29, 1996 +.Dt LOGIN_TTY 3 +.Os +.Sh NAME +.Nm login_tty +.Nd prepare a tty for a new login session +.Sh LIBRARY +.Lb libutil +.Sh SYNOPSIS +.In libutil.h +.Ft int +.Fn login_tty "int fd" +.Sh DESCRIPTION +The function +.Fn login_tty +prepares a terminal for a new login session. +The file descriptor +.Ar fd +passed to +.Fn login_tty +must be opened for reading and writing on a terminal device. +It will be +made the controlling terminal for the calling process, after allocating +a new session with +.Xr setsid 2 . +This terminal device will also be made the standard input, standard output, +and standard error output of the calling process. +.Sh RETURN VALUES +The +.Fn login_tty +function returns -1 if it could not make the device referenced by +.Ar fd +the controlling terminal of the calling process, and 0 otherwise. +.Sh SEE ALSO +.Xr dup2 2 , +.Xr ioctl 2 , +.Xr setsid 2 , +.Xr tty 4 |