freebsd-dev/lib/libc/gen/tcsetpgrp.3
Warner Losh fbbd9655e5 Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00

96 lines
3.1 KiB
Groff

.\" Copyright (c) 1991, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
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.\" 3. Neither the name of the University nor the names of its contributors
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.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" @(#)tcsetpgrp.3 8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd June 4, 1993
.Dt TCSETPGRP 3
.Os
.Sh NAME
.Nm tcsetpgrp
.Nd set foreground process group ID
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In sys/types.h
.In unistd.h
.Ft int
.Fn tcsetpgrp "int fd" "pid_t pgrp_id"
.Sh DESCRIPTION
If the process has a controlling terminal, the
.Fn tcsetpgrp
function sets the foreground process group ID associated with the
terminal device to
.Fa pgrp_id .
The terminal device associated with
.Fa fd
must be the controlling terminal of the calling process and the
controlling terminal must be currently associated with the session
of the calling process.
The value of
.Fa pgrp_id
must be the same as the process group ID of a process in the same
session as the calling process.
.Sh RETURN VALUES
.Rv -std tcsetpgrp
.Sh ERRORS
The
.Fn tcsetpgrp
function will fail if:
.Bl -tag -width Er
.It Bq Er EBADF
The
.Fa fd
argument is not a valid file descriptor.
.It Bq Er EINVAL
An invalid value of
.Fa pgrp_id
was specified.
.It Bq Er ENOTTY
The calling process does not have a controlling terminal, or the file
represented by
.Fa fd
is not the controlling terminal, or the controlling terminal is no
longer associated with the session of the calling process.
.It Bq Er EPERM
The
.Fa pgrp_id
argument does not match the process group ID of a process in the same
session as the calling process.
.El
.Sh SEE ALSO
.Xr setpgid 2 ,
.Xr setsid 2 ,
.Xr tcgetpgrp 3
.Sh STANDARDS
The
.Fn tcsetpgrp
function is expected to be compliant with the
.St -p1003.1-88
specification.