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/* ksim - a system monitor for kde
*
* Copyright (C) 2001 Robbie Ward <linuxphreak@gmx.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "filesystemstats.h"
#include <qglobal.h>
#include <qfile.h>
#include <qstringlist.h>
#include <kdebug.h>
#include <config.h>
#include <sys/types.h>
#include <sys/param.h>
#if defined(HAVE_SYS_STATVFS_H) && !defined(__DragonFly__)
#include <sys/statvfs.h>
#elif defined( HAVE_SYS_STATFS_H )
#include <sys/statfs.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_MNTENT_H
#include <mntent.h>
#ifdef _HPUX_SOURCE
#define _PATH_MOUNTED MNTTAB
#endif
#endif
#ifdef HAVE_SYS_UCRED_H
#include <sys/ucred.h>
#endif
#ifdef HAVE_SYS_MNTTAB_H
#include <sys/mnttab.h>
#undef HAVE_MNTENT_H
#define _PATH_MOUNTED MNTTAB
#endif
#include <stdio.h>
#include <unistd.h>
#if defined(HAVE_STATVFS) && !defined(__DragonFly__)
typedef struct statvfs ksim_statfs;
#define ksim_getfsstat getvfsstat
#elif defined( HAVE_STATFS ) || defined( Q_OS_FREEBSD )
typedef struct statfs ksim_statfs;
#define ksim_getfsstat getfsstat
#else
typedef struct // fall back for (possibly) non-supported systems
{
int f_blocks;
int f_bfree;
} ksim_statfs;
#endif
int fsystemStats( const char * file, ksim_statfs & stats )
{
#if defined(HAVE_STATVFS) && !defined(__DragonFly__)
return statvfs( file, &stats );
#elif defined( HAVE_STATFS ) || defined( Q_OS_FREEBSD )
return statfs( file, &stats );
#else // fall back for (possibly) non-supported systems
(void)file;
stats.f_blocks = 0;
stats.f_bfree = 0;
return -1;
#endif
}
#ifdef HAVE_SYS_MNTTAB_H
#define USE_MNTENT
typedef struct
{
const char * mnt_dir;
const char * mnt_fsname;
const char * mnt_type;
} ksim_mntent;
FILE * setmntent( const char * mtab, const char * mode )
{
return fopen( mtab, mode );
}
int endmntent( FILE * file )
{
return fclose( file );
}
ksim_mntent * ksim_getmntent( FILE * file )
{
ksim_mntent * entry;
struct mnttab tab;
if ( getmntent( file, &tab ) != 0 )
return NULL;
entry = new ksim_mntent;
entry->mnt_dir = tab.mnt_mountp;
entry->mnt_fsname = tab.mnt_special;
entry->mnt_type = tab.mnt_fstype;
return entry;
}
#define delete_mntent( x ) delete x
#elif defined( HAVE_MNTENT_H )
#define USE_MNTENT
// Dummy setup
typedef struct mntent ksim_mntent;
ksim_mntent * ksim_getmntent( FILE * file )
{
return getmntent( file );
}
#define delete_mntent( x )
#elif defined( HAVE_SYS_UCRED_H ) || defined( HAVE_SYS_MOUNT_H )
#define USE_FSSTAT
#else
#define USE_FAILSAFE
#endif
FilesystemStats::List FilesystemStats::readEntries()
{
List list;
#ifdef USE_MNTENT
FILE * fp = setmntent( _PATH_MOUNTED, "r" );
ksim_mntent * point;
while ( ( point = ksim_getmntent( fp ) ) != 0 )
{
Entry entry;
entry.dir = point->mnt_dir;
entry.fsname = point->mnt_fsname;
entry.type = point->mnt_type;
list.append( entry );
delete_mntent( point );
}
endmntent( fp );
#endif
#ifdef USE_FSSTAT
ksim_statfs sfs[32];
int fs_count;
if ( ( fs_count = ksim_getfsstat( sfs, sizeof( sfs ), 0 ) ) != -1 )
{
for ( int i = 0; i < fs_count; i++ )
{
Entry entry;
entry.dir = sfs[i].f_mntonname;
entry.fsname = sfs[i].f_mntfromname;
#ifndef __osf__
entry.type = sfs[i].f_fstypename;
#endif
list.append( entry );
}
}
#endif
#ifdef USE_FAILSAFE
QFile file( QString::fromLatin1( _PATH_MOUNTED ) );
if ( !file.open( IO_ReadOnly ) )
return list;
QTextStream stream( &file );
while ( !stream.atEnd() )
{
QStringList line = QStringList::split( " ", stream.readLine() );
Entry entry;
entry.dir = line[1].stripWhiteSpace();
entry.fsname = line[0].stripWhiteSpace();
entry.type = line[2].stripWhiteSpace();
list.append( entry );
}
#endif
return list;
}
bool FilesystemStats::readStats( const QString & mntPoint, int & totalBlocks, int & freeBlocks )
{
ksim_statfs sysStats;
if ( fsystemStats( QFile::encodeName( mntPoint ).data(), sysStats ) < 0 )
{
kdError() << "While reading filesystem information for " << mntPoint << endl;
totalBlocks = 0;
freeBlocks = 0;
}
totalBlocks = sysStats.f_blocks;
freeBlocks = sysStats.f_bfree;
// Return true if our filesystem is statable
return totalBlocks > 0;
}
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