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Initial version of xfs quota utility.  Knows how to do user/group/project quota, provides missing freespace reporting for realtime on Linux, and for project quotas.  Allows all current and future XFS quota functionality to be exposed without complicating the standard quota tools.
Merge of master-melb:xfs-cmds:22274a by kenmcd.

/*
 * Copyright (c) 2005 Silicon Graphics, Inc.  All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Further, this software is distributed without any warranty that it is
 * free of the rightful claim of any third person regarding infringement
 * or the like.	 Any license provided herein, whether implied or
 * otherwise, applies only to this software file.  Patent licenses, if
 * any, provided herein do not apply to combinations of this program with
 * other software, or any other product whatsoever.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
 *
 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 * Mountain View, CA  94043, or:
 *
 * http://www.sgi.com
 *
 * For further information regarding this notice, see:
 *
 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
 */

#include "quota.h"
#include <sys/quota.h>

#ifndef PRJQUOTA
#define PRJQUOTA 2
#endif

static int
xtype_to_qtype(
	uint		type)
{
	switch (type) {
	case XFS_USER_QUOTA:
		return USRQUOTA;
	case XFS_GROUP_QUOTA:
		return GRPQUOTA;
	case XFS_PROJ_QUOTA:
		return PRJQUOTA;
	}
	return 0;
}

static int
xcommand_to_qcommand(
	uint		command)
{
	switch (command) {
	case XFS_QUOTAON:
		return Q_XQUOTAON;
	case XFS_QUOTAOFF:
		return Q_XQUOTAOFF;
	case XFS_GETQUOTA:
		return Q_XGETQUOTA;
	case XFS_SETQLIM:
		return Q_XSETQLIM;
	case XFS_GETQSTAT:
		return Q_XGETQSTAT;
	case XFS_QUOTARM:
		return Q_XQUOTARM;
	}
	return 0;
}

int
xfsquotactl(
	int		command,
	const char	*device,
	uint		type,
	uint		id,
	void		*addr)
{
	int		qcommand, qtype;

	qtype = xtype_to_qtype(type);
	qcommand = xcommand_to_qcommand(command);

	return quotactl(QCMD(qcommand, qtype), device, id, addr);
}