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// 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
// 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.
//
#include "pub.def"
#include "jintypes.h"
int g_iBlkEnd = 0;
int g_iBlkStart = 0;
int g_iBlkLength = 0;
int g_iBlkBase = 0;
char szStart[ MAX_PATH ];
char szEnd[ MAX_PATH ];
char szLength[ MAX_PATH ];
BOOL g_bStartUsed = FALSE;
BOOL g_bEndUsed = FALSE;
BOOL g_bLenUsed = FALSE;
int g_bOutputIsAtari = FALSE;
int g_bUseBase = FALSE;
#define SHEADER PRG_NAME " v" PRG_VERSION " (c) " PRG_COPYRIGHT " " PRG_AUTHOR "\n"
#define HEADER SHEADER \
PRG_DESC "\n" \
" Latest version can be found at " PRG_URL "\n" \
" Published under GPL. See GPL.TXT.\n\n"
#define USAGE HEADER "Usage: " PRG_NAME " " PRG_USAGE
#include "switches.cpp"
int ToNum( char*, int );
int main( int argc, char *argv[] )
{
setbuf( stdout, NULL );
setbuf( stderr, NULL );
if ( !SWITCHES_Init( &argc, argv ) )
return 1;
if ( argc < 2 )
{
SWFN_HELP( USAGE );
return 1;
}
fprintf( stderr, SHEADER );
char* szInfile = argv[ 1 ];
char szOutfile[ MAX_PATH ];
if ( argc >= 3 )
{
strcpy( szOutfile, argv[ 2 ] );
}
else
{
strcpy( szOutfile, "prg.axe" );
}
int hIn = open( szInfile, O_RDONLY | O_BINARY );
if ( hIn == -1 )
{
fprintf( stderr, "Can't open infile '%s'!\n", szInfile );
return -1;
}
if( g_bStartUsed )
{
g_iBlkStart = ToNum( szStart, 1 );
}
if( g_bEndUsed )
{
g_iBlkEnd = ToNum( szEnd, 1 );
}
if( g_bLenUsed )
{
g_iBlkLength = ToNum( szLength, 0 );
}
LONG lLen = lseek( hIn, 0, SEEK_END );
lseek( hIn, 0, SEEK_SET );
if( g_bEndUsed && g_iBlkEnd < 1 )
{
g_iBlkEnd = lLen - 1 + g_iBlkEnd;
}
if( g_bStartUsed )
{
if ( g_bEndUsed )
{
g_iBlkLength = g_iBlkEnd - g_iBlkStart + 1;
}
else
{
//START & ?
if ( g_bLenUsed )
{
//start & length
g_iBlkEnd = g_iBlkStart + g_iBlkLength - 1;
}
else
{
//start & nothing
g_iBlkEnd = lLen - 1;
g_iBlkLength = g_iBlkEnd - g_iBlkStart + 1;
}
}
}
else if( g_bEndUsed )
{
if( g_bLenUsed )
{
//end & length
g_iBlkStart = g_iBlkEnd - g_iBlkLength + 1;
}
else
{
//end only
g_iBlkStart = 0;
g_iBlkLength = g_iBlkEnd - g_iBlkStart + 1;
}
}
else
{
if( g_bLenUsed )
{
//length only
g_iBlkStart = 0;
g_iBlkEnd = g_iBlkStart + g_iBlkLength - 1;
}
else
{
//nothing
g_iBlkStart = 0;
g_iBlkLength = lLen;
g_iBlkEnd = g_iBlkStart + g_iBlkLength - 1;
}
}
if( ( g_iBlkStart < 0 ) || ( g_iBlkStart >= lLen ) )
{
fprintf( stderr, "Invalid start ptr!\n" );
close( hIn );
return -1;
}
if( ( g_iBlkEnd < 0 ) || ( g_iBlkEnd >= lLen ) || ( g_iBlkEnd < g_iBlkStart ) )
{
fprintf( stderr, "Invalid end ptr!\n" );
close( hIn );
return -1;
}
int iBlkStartM = g_iBlkStart;
int iBlkEndM = g_iBlkEnd;
if( g_bUseBase )
{
iBlkStartM = g_iBlkBase;
iBlkEndM = g_iBlkBase + g_iBlkLength - 1;
}
if ( ( ( iBlkEndM >= 0x10000 ) || ( iBlkStartM >= 0x10000 ) ) && g_bOutputIsAtari )
{
fprintf( stderr, "End goes past end of RAM in real Atari!\n" );
close( hIn );
return -1;
}
int hOut = open( szOutfile, O_WRONLY | O_BINARY | O_CREAT | O_TRUNC, 0666 );
if ( hOut == -1 )
{
fprintf( stderr, "Can't open outfile '%s'!\n", szOutfile );
close( hIn );
return -1;
}
#define BUFLEN 0x10000
BYTE* pbtPtr = new BYTE [ BUFLEN ];
lseek( hIn, g_iBlkStart, SEEK_SET );
if ( g_bOutputIsAtari )
{
WORD wStart = iBlkStartM;
WORD wEnd = iBlkEndM;
BYTE btPom = 0xFF;
write( hOut, &btPom, 1 );
write( hOut, &btPom, 1 );
btPom = wStart & 0xFF;
write( hOut, &btPom, 1 );
btPom = wStart >> 8;
write( hOut, &btPom, 1 );
btPom = wEnd & 0xFF;
write( hOut, &btPom, 1 );
btPom = wEnd >> 8;
write( hOut, &btPom, 1 );
}
int iLeft = g_iBlkLength;
while( iLeft )
{
int iReadNow = iLeft > BUFLEN ? BUFLEN : iLeft;
read( hIn, pbtPtr, iReadNow );
write( hOut, pbtPtr, iReadNow );
iLeft -= iReadNow;
}
close( hOut );
close( hIn );
printf( "Done!\n" );
return 0;
}
int ToNum( char* szString, int iOffs )
{
BOOL bSec = FALSE;
if( *szString == 's' )
{
bSec = TRUE;
szString++;
}
int iNum;
sscanf( szString, "%X", &iNum );
if( bSec )
{
if( iNum < iOffs )
{
printf( "Incorrect sector number %s\n", szString );
return -1;
}
iNum -= iOffs;
iNum *= 0x80;
if( iOffs )
{
//begin & end
iNum += 0x10;
}
//whole code assumes SD ATR file!!!
}
return iNum;
}
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