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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 <xfs/command.h>
#include <xfs/input.h>
#include "init.h"
#include "quota.h"

static cmdinfo_t path_cmd;
static cmdinfo_t print_cmd;

static void
printpath(
	struct fs_path	*path,
	int		index,
	int		number,
	int		braces)
{
	fs_quota_stat_t	qstat;
	fs_project_t	*prj;
	int		c;

	if (index == 0) {
		printf(_("%sFilesystem          Pathname\n"),
			number ? _("      ") : "");
	}
	if (number) {
		printf(_("%c%03d%c "), braces? '[':' ', index, braces? ']':' ');
	}
	printf(_("%-19s %s"), path->fs_dir, path->fs_name);
	if (path->fs_flags & FS_PROJECT_PATH) {
		prj = getprprid(path->fs_prid);
		printf(_(" (project %u"), path->fs_prid);
		if (prj)
			printf(_(", %s"), prj->pr_name);
		printf(")");
	} else if (xfsquotactl(XFS_GETQSTAT, path->fs_name, 0, 0,
				(void *)&qstat) == 0 && qstat.qs_flags) {
		c = 0;
		printf(" (");
		if (qstat.qs_flags & XFS_QUOTA_UDQ_ENFD)
			c = printf("%suquota", c ? ", " : "");
		else if (qstat.qs_flags & XFS_QUOTA_UDQ_ACCT)
			c = printf("%suqnoenforce", c ? ", " : "");
		if (qstat.qs_flags & XFS_QUOTA_GDQ_ENFD)
			c = printf("%sgquota", c ? ", " : "");
		else if (qstat.qs_flags & XFS_QUOTA_GDQ_ACCT)
			c = printf("%sgqnoenforce", c ? ", " : "");
		if (qstat.qs_flags & XFS_QUOTA_PDQ_ENFD)
			c = printf("%spquota", c ? ", " : "");
		else if (qstat.qs_flags & XFS_QUOTA_PDQ_ACCT)
			c = printf("%spqnoenforce", c ? ", " : "");
		printf(")");
	}
	printf("\n");
}

static int
pathlist_f(void)
{
	int		i;

	for (i = 0; i < fs_count; i++)
		printpath(&fs_table[i], i, 1, &fs_table[i] == fs_path);
	return 0;
}

static int
print_f(
	int		argc,
	char		**argv)
{
	int		i;

	for (i = 0; i < fs_count; i++)
		printpath(&fs_table[i], i, 0, 0);
	return 0;
}

static int
path_f(
	int		argc,
	char		**argv)
{
	if (argc <= 1)
		return pathlist_f();

	int	i = atoi(argv[1]);

	if (i < 0 || i >= fs_count) {
		printf(_("value %d is out of range (0-%d)\n"),
			i, fs_count-1);
	} else {
		fs_path = &fs_table[i];
		pathlist_f();
	}
	return 0;
}

void
path_init(void)
{
	path_cmd.name = _("path");
	path_cmd.altname = _("paths");
	path_cmd.args = _("[N]");
	path_cmd.cfunc = path_f;
	path_cmd.argmin = 0;
	path_cmd.argmax = 1;
	path_cmd.oneline = _("set current path, or show the list of paths");

	print_cmd.name = _("print");
	print_cmd.altname = _("p");
	print_cmd.cfunc = print_f;
	print_cmd.argmin = 0;
	print_cmd.argmax = 0;
	print_cmd.oneline = _("list known mount points and projects");

	if (expert)
		add_command(&path_cmd);
	add_command(&print_cmd);
}