gparted/src/fat32.cc

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/* Copyright (C) 2004 Bart
*
* 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "../include/fat32.h"
namespace GParted
{
FS fat32::get_filesystem_support( )
{
FS fs ;
fs .filesystem = "fat32" ;
//find out if we can create fat32 filesystems
if ( ! system( "which mkdosfs 1>/dev/null 2>/dev/null" ) )
fs .create = GParted::FS::EXTERNAL ;
if ( ! system( "which dosfsck 1>/dev/null 2>/dev/null" ) )
{
fs .check = GParted::FS::EXTERNAL ;
fs .read = GParted::FS::EXTERNAL ;
}
//resizing of start and endpoint are provided by libparted
fs .grow = GParted::FS::LIBPARTED ;
fs .shrink = GParted::FS::LIBPARTED ;
fs .move = GParted::FS::LIBPARTED ;
if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) )
fs .copy = GParted::FS::EXTERNAL ;
fs .MIN = 32 ; //smaller fs'es will cause windows scandisk to fail..
return fs ;
}
void fat32::Set_Used_Sectors( Partition & partition )
{
char c_buf[ 512 ] ;
FILE *f ;
Glib::ustring output ;
Sector free_clusters = -1, bytes_per_cluster = -1 ;
//get free blocks..
f = popen( ( "LC_ALL=C echo 2 | dosfsck -v " + partition .partition ) .c_str( ), "r" ) ;
while ( fgets( c_buf, 512, f ) )
{
output = Glib::locale_to_utf8( c_buf ) ;
//bytes per cluster
if ( output .find( "bytes per cluster" ) < output .length( ) )
bytes_per_cluster = atol( output .substr( 0, output .find( "b" ) ) .c_str( ) ) ;
//free clusters
if ( output .find( partition .partition ) < output .length( ) )
{
output = output .substr( output .find( "," ) +2, output .length( ) ) ;
free_clusters = atol( output .substr( output .find( "/" ) +1, output .find( " " ) ) .c_str( ) ) - atol( output .substr( 0, output .find( "/" ) ) .c_str( ) ) ;
}
}
pclose( f ) ;
if ( free_clusters > -1 && bytes_per_cluster > -1 )
partition .Set_Unused( free_clusters * bytes_per_cluster / 512 ) ;
}
bool fat32::Create( const Partition & new_partition )
{
return ! Execute_Command( "mkdosfs -F32 " + new_partition .partition ) ;
}
bool fat32::Resize( const Partition & partition_new, bool fill_partition )
{
//handled in GParted_Core::Resize_Normal_Using_Libparted
return false ;
}
bool fat32::Copy( const Glib::ustring & src_part_path, const Glib::ustring & dest_part_path )
{
return ! Execute_Command( "dd bs=8192 if=" + src_part_path + " of=" + dest_part_path ) ;
}
bool fat32::Check_Repair( const Partition & partition )
{
return ! Execute_Command( "dosfsck -aw " + partition .partition ) ;
}
int fat32::get_estimated_time( long MB_to_Consider )
{
return -1 ;
}
} //GParted