gparted/src/ext3.cc

122 lines
3.3 KiB
C++

/* 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/ext3.h"
namespace GParted
{
FS ext3::get_filesystem_support( )
{
FS fs ;
fs .filesystem = GParted::FS_EXT3 ;
if ( ! system( "which dumpe2fs 1>/dev/null 2>/dev/null" ) )
fs .read = GParted::FS::EXTERNAL ;
if ( ! system( "which mkfs.ext3 1>/dev/null 2>/dev/null" ) )
fs .create = GParted::FS::EXTERNAL ;
if ( ! system( "which e2fsck 1>/dev/null 2>/dev/null" ) )
fs .check = GParted::FS::EXTERNAL ;
//resizing is a delicate process ...
if ( ! system( "which resize2fs 1>/dev/null 2>/dev/null" ) && fs .check )
{
fs .grow = GParted::FS::EXTERNAL ;
if ( fs .read ) //needed to determine a min filesystemsize..
fs .shrink = GParted::FS::EXTERNAL ;
}
if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) && fs .grow )
fs .copy = GParted::FS::EXTERNAL ;
return fs ;
}
void ext3::Set_Used_Sectors( Partition & partition )
{
argv .push_back( "dumpe2fs" ) ;
argv .push_back( "-h" ) ;
argv .push_back( partition .partition ) ;
envp .push_back( "LC_ALL=C" ) ;
try
{
Glib::spawn_sync( ".", argv, envp, Glib::SPAWN_SEARCH_PATH, sigc::slot< void >(), &output ) ;
}
catch ( Glib::Exception & e )
{
std::cout << e .what() << std::endl ;
return ;
}
index = output .find( "Free blocks:" ) ;
if ( index >= output .length() || sscanf( output.substr( index ) .c_str(), "Free blocks: %Ld", &N ) != 1 )
N = -1 ;
index = output .find( "Block size:" ) ;
if ( index >= output.length() || sscanf( output.substr( index ) .c_str(), "Block size: %Ld", &S ) != 1 )
S = -1 ;
if ( N > -1 && S > -1 )
partition .Set_Unused( N * S / 512 ) ;
}
bool ext3::Create( const Partition & new_partition )
{
return ! Execute_Command( "mkfs.ext3 " + new_partition .partition ) ;
}
bool ext3::Resize( const Partition & partition_new, bool fill_partition )
{
Glib::ustring str_temp = "resize2fs " + partition_new .partition ;
if ( ! fill_partition )
str_temp += " " + Utils::num_to_str( partition_new .Get_Length_MB( ) - cylinder_size, true ) + "M" ;
return ! Execute_Command( str_temp ) ;
}
bool ext3::Copy( const Glib::ustring & src_part_path, const Glib::ustring & dest_part_path )
{
if ( ! Execute_Command( "dd bs=8192 if=" + src_part_path + " of=" + dest_part_path ) )
{
Partition partition ;
partition .partition = dest_part_path ;
return Resize( partition, true ) ;
}
return false ;
}
bool ext3::Check_Repair( const Partition & partition )
{
return Execute_Command( "e2fsck -fy " + partition .partition ) <= 1 ;
}
int ext3::get_estimated_time( long MB_to_Consider )
{
return -1 ;
}
} //GParted