gparted/src/ext2.cc

111 lines
3.0 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/ext2.h"
namespace GParted
{
FS ext2::get_filesystem_support( )
{
FS fs ;
fs .filesystem = "ext2" ;
if ( ! system( "which dumpe2fs 1>/dev/null 2>/dev/null" ) )
fs .read = true ;
if ( ! system( "which mkfs.ext2 1>/dev/null 2>/dev/null" ) )
fs .create = true ;
if ( ! system( "which e2fsck 1>/dev/null 2>/dev/null" ) )
fs .check = true ;
//resizing is a delicate process which requires 3 commands..
if ( ! system( "which resize2fs 1>/dev/null 2>/dev/null" ) && fs .read && fs .check )
fs .resize = true ;
if ( ! system( "which dd 1>/dev/null 2>/dev/null" ) )
fs .copy = true ;
return fs ;
}
void ext2::Set_Used_Sectors( Partition & partition )
{
char c_buf[ 512 ] ;
FILE *f ;
Glib::ustring output ;
Sector free_blocks = -1, blocksize = -1 ;
//get free blocks..
f = popen( ( "dumpe2fs -h " + partition .partition ) .c_str( ), "r" ) ;
while ( fgets( c_buf, 512, f ) )
{
output = Glib::locale_to_utf8( c_buf ) ;
//free blocks
if ( output .find( "Free blocks" ) < output .length( ) )
free_blocks = atoi( (output .substr( output .find( ":" ) +1, output .length( ) ) ) .c_str( ) ) ;
//blocksize
if ( output .find( "Block size:" ) < output .length( ) )
blocksize = atoi( (output .substr( output .find( ":" ) +1, output .length( ) ) ) .c_str( ) ) ;
}
pclose( f ) ;
if ( free_blocks > -1 && blocksize > -1 )
partition .Set_Unused( free_blocks * blocksize / 512 ) ;
}
bool ext2::Create( const Glib::ustring device_path, const Partition & new_partition )
{
return Execute_Command( "mkfs.ext2 " + new_partition .partition ) ;
}
bool ext2::Resize( const Partition & partition_new, bool fill_partition )
{
Glib::ustring str_temp = "resize2fs " + partition_new .partition ;
if ( ! fill_partition )
str_temp += " " + num_to_str( partition_new .Get_Length_MB( ) - cylinder_size ) + "M" ;
return Execute_Command( str_temp ) ;
}
bool ext2::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 ext2::Check_Repair( const Partition & partition )
{
return Execute_Command( "e2fsck -fy " + partition .partition ) ;
}
int ext2::get_estimated_time( long MB_to_Consider )
{
return -1 ;
}
} //GParted