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MAIN.CPP
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C/C++ Source or Header
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1994-05-26
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/*
FIPS - the First nondestructive Interactive Partition Splitting program
Module main.cpp
RCS - Header:
$Header: c:/daten/fips/source/main/RCS/main.cpp 1.1 1994/05/25 22:20:03 schaefer Exp schaefer $
Copyright (C) 1993 Arno Schaefer
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., 675 Mass Ave, Cambridge, MA 02139, USA.
Report problems and direct all questions to:
schaefer@rbg.informatik.th-darmstadt.de
*/
#include <stdlib.h>
#include "logdr_st.h"
#include "global.h"
#include "input.h"
#include "fat.h"
#include "fipsspec.h"
#include "host_os.h"
void main (int argc,char *argv[])
{
evaluate_argument_vector (argc,argv);
atexit (exit_function);
if (global.debug_mode) global.open_debugfile(argc,argv);
notice();
int drive_number;
if (global.drive_number_cmdline) drive_number = global.drive_number_cmdline;
else drive_number = ask_for_drive_number ();
host_os os;
char infostring[256];
if (os.ok () != OK)
{
printx ("\nWARNING: FIPS has detected that it is running under %s\n"
"FIPS should not be used under a multitasking OS. If possible, boot from a DOS\n"
"disk and then run FIPS. Read FIPS.DOC for more information.\n\n",
os.information (infostring));
ask_if_proceed ();
}
fips_harddrive harddrive (drive_number);
if (harddrive.errorcode)
error ("Error reading Drive Geometry: Errorcode %u",harddrive.errorcode);
harddrive.reset();
if (harddrive.errorcode)
error ("Drive Initialization Failure: Errorcode %u",harddrive.errorcode);
if (harddrive.rootsector->read ())
error ("Error reading Root Sector");
if (global.debug_mode)
{
fprintf (global.debugfile,"\nRoot Sector Drive %02Xh:\n\n",drive_number);
hexwrite (harddrive.rootsector->data,512,global.debugfile);
}
fips_partition *partition;
while (true)
{
fips_harddrive hd = harddrive;
hd.partition_table().get (hd.rootsector);
printx ("\nPartition Table:\n\n");
hd.print_partition_table ();
hd.check();
int partition_number;
if (global.partition_number_cmdline) partition_number = global.partition_number_cmdline - 1;
else partition_number = ask_for_partition_number (hd.partition_table().partition_info);
partition = new fips_partition (&hd,partition_number);
int system = partition->partition_info->system;
if (system == 5)
error ("Can't split extended Partitions");
if (system == 0)
error ("Invalid Partition selected: %u",partition_number + 1);
if ((system != 1) && (system != 4) && (system != 6))
error ("Unknown Filesystem: %02Xh",system);
if (partition->bootsector->read ())
error ("Error reading Boot Sector");
if (global.debug_mode)
{
fprintf (global.debugfile,"\nBoot Sector Drive %02Xh, Partition %u:\n\n",hd.number,partition->number + 1);
hexwrite (partition->bootsector->data,512,global.debugfile);
}
partition->bpb().get (partition->bootsector);
printx ("\nBootsector:\n\n");
partition->print_bpb ();
partition->info().get (partition->bpb());
if (global.debug_mode) partition->write_info_debugfile ();
partition->check();
fat16 fat1 (partition,1);
fat16 fat2 (partition,2);
fat1.check_against (&fat2);
dword new_part_min_sector = partition->info().start_data + (dword) 4085 * partition->bpb().sectors_per_cluster;
dword new_part_min_cylinder = (new_part_min_sector + partition->partition_info->start_sector_abs - 1) / (hd.geometry.heads * hd.geometry.sectors) + 1;
if (new_part_min_cylinder > partition->partition_info->end_cylinder)
error ("Partition too small - can't split");
dword min_free_cluster = fat1.min_cluster ();
dword min_free_sector = partition->info().start_data + (min_free_cluster - 2) * (dword) partition->bpb().sectors_per_cluster;
dword min_free_cylinder = (min_free_sector + partition->partition_info->start_sector_abs - 1) / (hd.geometry.heads * hd.geometry.sectors) + 1;
if (min_free_cylinder > partition->partition_info->end_cylinder)
error ("Last Cylinder is not free");
if (new_part_min_cylinder < min_free_cylinder) new_part_min_cylinder = min_free_cylinder;
if (ask_if_save()) save_root_and_boot(&hd,partition);
dword new_start_cylinder;
if (global.new_start_cylinder_cmdline)
{
new_start_cylinder = global.new_start_cylinder_cmdline;
if ((new_start_cylinder < new_part_min_cylinder) || (new_start_cylinder > partition->partition_info->end_cylinder))
error ("Invalid new start cylinder: %lu",new_start_cylinder);
}
else new_start_cylinder = ask_for_new_start_cylinder (partition->partition_info->start_cylinder, new_part_min_cylinder,partition->partition_info->end_cylinder, hd.geometry.heads * hd.geometry.sectors);
fat2.check_empty (new_start_cylinder * hd.geometry.heads * hd.geometry.sectors - partition->partition_info->start_sector_abs);
hd.calculate_new_root (new_start_cylinder,partition);
hd.partition_table().put (hd.rootsector);
hd.partition_table().get (hd.rootsector);
printx ("\nNew Partition Table:\n\n");
hd.print_partition_table ();
hd.check();
if (ask_if_continue ())
{
harddrive = hd;
break;
}
}
partition->calculate_new_boot ();
partition->bpb().put (partition->bootsector);
partition->bpb().get (partition->bootsector);
printx ("\nNew Bootsector:\n\n");
partition->print_bpb ();
partition->info().get (partition->bpb());
if (global.debug_mode) partition->write_info_debugfile ();
partition->check();
if (!global.test_mode)
{
ask_for_write_permission();
if (harddrive.rootsector->write())
error ("Error writing Root Sector");
if (partition->bootsector->write ())
error ("Error writing Boot Sector");
printx ("Repartitioning complete\n");
}
}