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Diffstat (limited to 'static/netbsd/man2/setpgid.2')
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diff --git a/static/netbsd/man2/setpgid.2 b/static/netbsd/man2/setpgid.2 new file mode 100644 index 00000000..a4b92411 --- /dev/null +++ b/static/netbsd/man2/setpgid.2 @@ -0,0 +1,115 @@ +.\" $NetBSD: setpgid.2,v 1.24 2022/03/16 00:50:40 dholland Exp $ +.\" +.\" 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. +.\" 3. 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 +.\" +.Dd March 15, 2022 +.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 +.Fn setpgid +sets the process group of the specified process +.Ar pid +to the specified +.Ar pgrp . +If +.Ar pid +is zero, then the call applies to the current process. +If +.Ar pgrp +is zero, then the process id of the process specified by +.Ar pid +is used instead. +.Pp +If the invoker is not the super-user, then the affected process +must have the same effective user-id as the invoker or be a descendant +of the invoking process. +.Pp +In general to set the process group of a newly forked subprocess, both +the child and parent processes should call +.Fn setpgid +to ensure that the process group change takes effect in a timely +fashion. +One call will succeed and the other will fail, depending on process +scheduling. +.Sh RETURN VALUES +.Fn setpgid +returns 0 when the operation was successful. +If the request failed, \-1 is returned and the global variable +.Va errno +indicates the reason. +.Sh COMPATIBILITY +.Fn setpgrp +is identical to +.Fn setpgid , +and is retained for calling convention compatibility with historical +versions of +.Bx . +.Sh ERRORS +.Fn setpgid +will fail and the process group will not be altered if: +.Bl -tag -width Er +.It Bq Er EACCES +The value of the +.Fa pid +argument matches the process ID of a child process of the calling process, +and the child process has successfully executed one of the exec functions. +.It Bq Er EINVAL +The value of the +.Fa pgrp +argument is less than zero. +.It Bq Er EPERM +The effective user ID of the requested process is different +from that of the caller and the process is not a descendant +of the calling process. +.It Bq Er ESRCH +The value of the +.Fa pid +argument does not match the process ID of the calling process or of a +child process of the calling process. +.El +.Sh SEE ALSO +.Xr getpgrp 2 +.Sh STANDARDS +The +.Fn setpgid +function conforms to +.St -p1003.1-90 . |