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NetBSD/lib/libc/sys/setgroups.2

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.\" $NetBSD: setgroups.2,v 1.18 2006/10/13 20:53:21 wiz Exp $
merge with lite, keeping most local changes. clean up Ids
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.\"
.\" Copyright (c) 1983, 1991, 1993, 1994
.\" The Regents of the University of California. All rights reserved.
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.\"
.\" 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.
Move UCB-licensed code from 4-clause to 3-clause licence. Patches provided by Joel Baker in PR 22280, verified by myself.
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.\" 3. Neither the name of the University nor the names of its contributors
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.\" 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.
.\"
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.\" @(#)setgroups.2 8.2 (Berkeley) 4/16/94
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.\"
PR/23152: Matthew Mondor: Minor improvements to section 2 man pages for NetBSD 1.6.1 Well we're long gone from NetBSD 1.6.1 but I adapted the patch to -current as it seemed reasonable. Thanks for submitting!
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.Dd October 7, 2006
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.Dt SETGROUPS 2
Last of the .Os cleanups. .Os is defined in the tmac.doc-common file, so we shouldn't override it with versions in the manpages. Wheee!
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.Os
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.Sh NAME
.Nm setgroups
.Nd set group access list
Add a LIBRARY section to system call manual pages. While it's clear that the libraries contain stubs only (with minor exceptions a la pipe(2)), the purpose of this section is to provide linkage information.
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.Sh LIBRARY
.Lb libc
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.Sh SYNOPSIS
Use .In header.h instead of .Fd #include \*[Lt]header.h\*[Gt] Much easier to read and write, and supported by groff for ages. Okayed by ross.
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.In sys/param.h
.In unistd.h
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.Ft int
Last weekend's gid_t changes allow us to change the gidset argument of getgroups() and setgroups() from a int ptr to a gid_t ptr.
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.Fn setgroups "int ngroups" "const gid_t *gidset"
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.Sh DESCRIPTION
first pass at fixing up capitalization of function names and arguments; ensure that each is correct with respect to the implementation, rather than being correct as per english.
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.Fn setgroups
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sets the group access list of the current user process
Boring whitespace fixes.
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according to the array
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.Fa gidset .
The parameter
.Fa ngroups
indicates the number of entries in the array and must be no
more than
Add curly braces around NGROUPS_MAX. This convention is used in manpages for other UN*X systems to refer to system values (availiable via sysconf() or pathconf()) rather than definitions in <limits.h>.
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.Dv {NGROUPS_MAX} .
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.Pp
Only the super-user may set new groups.
PR/23152: Matthew Mondor: Minor improvements to section 2 man pages for NetBSD 1.6.1 Well we're long gone from NetBSD 1.6.1 but I adapted the patch to -current as it seemed reasonable. Thanks for submitting!
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.Pp
This system call affects only secondary groups.
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.Sh RETURN VALUES
\- is a minus, not -.
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A 0 value is returned on success, \-1 on error, with
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an error code stored in
.Va errno .
.Sh ERRORS
The
.Fn setgroups
call will fail if:
.Bl -tag -width Er
Describe causes of EINVAL error. NGROUPS -> NGROUPS_MAX.
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.It Bq Er EINVAL
Boring whitespace fixes.
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The value of
Describe causes of EINVAL error. NGROUPS -> NGROUPS_MAX.
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.Fa ngroups
is greater than
Add curly braces around NGROUPS_MAX. This convention is used in manpages for other UN*X systems to refer to system values (availiable via sysconf() or pathconf()) rather than definitions in <limits.h>.
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.Dv {NGROUPS_MAX} .
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.It Bq Er EPERM
The caller is not the super-user.
.It Bq Er EFAULT
The address specified for
.Fa gidset
is outside the process
address space.
.El
.Sh SEE ALSO
.Xr getgroups 2 ,
PR/23152: Matthew Mondor: Minor improvements to section 2 man pages for NetBSD 1.6.1 Well we're long gone from NetBSD 1.6.1 but I adapted the patch to -current as it seemed reasonable. Thanks for submitting!
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.Xr setegid 2 ,
Sort SEE ALSO.
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.Xr setgid 2 ,
PR/23152: Matthew Mondor: Minor improvements to section 2 man pages for NetBSD 1.6.1 Well we're long gone from NetBSD 1.6.1 but I adapted the patch to -current as it seemed reasonable. Thanks for submitting!
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.Xr setregid 2 ,
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.Xr initgroups 3
.Sh HISTORY
The
Clean up manpages: Use .Fn rather than .Nm macro in HISTORY and STANDARDS sections. Use .At and .St macros instead of spelling out "Version 6 UNIX", "IEEE 1003.1-1988 (POSIX)", etc.
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.Fn setgroups
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function call appeared in
.Bx 4.2 .