mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
106 lines
3.3 KiB
Groff
106 lines
3.3 KiB
Groff
.\" Copyright (c) 1980, 1991, 1993
|
|
.\" The Regents of the University of California. 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.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
|
.\"
|
|
.\" @(#)setpgid.2 8.1 (Berkeley) 6/4/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd February 8, 2004
|
|
.Dt SETPGID 2
|
|
.Os
|
|
.Sh NAME
|
|
.Nm setpgid ,
|
|
.Nm setpgrp
|
|
.Nd set process group
|
|
.Sh LIBRARY
|
|
.Lb libc
|
|
.Sh SYNOPSIS
|
|
.In unistd.h
|
|
.Ft int
|
|
.Fn setpgid "pid_t pid" "pid_t pgrp"
|
|
.Ft int
|
|
.Fn setpgrp "pid_t pid" "pid_t pgrp"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Fn setpgid
|
|
system call
|
|
sets the process group of the specified process
|
|
.Fa pid
|
|
to the specified
|
|
.Fa pgrp .
|
|
If
|
|
.Fa pid
|
|
is zero, then the call applies to the current process.
|
|
.Pp
|
|
If the affected process is not the invoking process, then it must be a
|
|
child of the invoking process, it must not have performed an
|
|
.Xr exec 3
|
|
operation, and both processes must be in the same session.
|
|
The requested process group ID must already exist in the session of
|
|
the caller, or it must be equal to the target process ID.
|
|
.Sh RETURN VALUES
|
|
.Rv -std setpgid
|
|
.Sh COMPATIBILITY
|
|
The
|
|
.Fn setpgrp
|
|
system call
|
|
is identical to
|
|
.Fn setpgid ,
|
|
and is retained for calling convention compatibility with historical
|
|
versions of
|
|
.Bx .
|
|
.Sh ERRORS
|
|
The
|
|
.Fn setpgid
|
|
system call
|
|
will fail and the process group will not be altered if:
|
|
.Bl -tag -width Er
|
|
.It Bq Er EINVAL
|
|
The requested process group ID is not legal.
|
|
.It Bq Er ESRCH
|
|
The requested process does not exist.
|
|
.It Bq Er ESRCH
|
|
The target process is not the calling process or
|
|
a child of the calling process.
|
|
.It Bq Er EACCES
|
|
The requested process is a child of the calling process,
|
|
but it has performed an
|
|
.Xr exec 3
|
|
operation.
|
|
.It Bq Er EPERM
|
|
The target process is a session leader.
|
|
.It Bq Er EPERM
|
|
The requested process group ID is not in the session of the caller,
|
|
and it is not equal to the process ID of the target process.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr getpgrp 2
|
|
.Sh STANDARDS
|
|
The
|
|
.Fn setpgid
|
|
system call is expected to conform to
|
|
.St -p1003.1-90 .
|