Apple-2-Tools
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AppleCommander
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Removed unused code, fixed getFileData when reading large files 

(tree files) and fixed a bug when writing to a file and calculating the
offset for the index block for tree files (position would get larger
than 256, which caused an array out of bounds exception).
This commit is contained in:
Robert Greene 2003-02-08 16:45:52 +00:00
parent 216b34549d
commit d1f736bd1b
1 changed files with 6 additions and 6 deletions
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12
src/com/webcodepro/applecommander/storage/ProdosFormatDisk.java
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@ -378,7 +378,6 @@ public class ProdosFormatDisk extends FormattedDisk {
}
ProdosFileEntry prodosEntry = (ProdosFileEntry) fileEntry;
byte[] fileData = new byte[prodosEntry.getEofPosition()];
int indexBlocks = 0;
if (prodosEntry.isSeedlingFile()) {
byte[] blockData = readBlock(prodosEntry.getKeyPointer());
System.arraycopy(blockData, 0, fileData, 0, prodosEntry.getEofPosition());
@ -390,8 +389,11 @@ public class ProdosFormatDisk extends FormattedDisk {
int offset = 0;
for (int i=0; i<0x100; i++) {
int blockNumber = AppleUtil.getWordValue(masterIndexBlock[i], masterIndexBlock[i+0x100]);
byte[] indexBlock = readBlock(blockNumber);
offset+= getIndexBlockData(fileData, indexBlock, offset);
if (blockNumber > 0) {
// FIXME - this may break sparse files!
byte[] indexBlock = readBlock(blockNumber);
offset= getIndexBlockData(fileData, indexBlock, offset);
}
}
} else {
throw new IllegalArgumentException("Unknown ProDOS storage type!");
@ -411,7 +413,6 @@ public class ProdosFormatDisk extends FormattedDisk {
freeBlocksInIndex(bitmap,block);
} else if (prodosFileEntry.isTreeFile()) {
byte[] masterIndexBlock = readBlock(block);
int offset = 0;
for (int i=0; i<0x100; i++) {
int indexBlockNumber = AppleUtil.getWordValue(
masterIndexBlock[i], masterIndexBlock[i+0x100]);
@ -427,7 +428,6 @@ public class ProdosFormatDisk extends FormattedDisk {
private void freeBlocksInIndex(byte[] bitmap, int indexBlockNumber) {
setBlockFree(bitmap, indexBlockNumber);
byte[] indexBlock = readBlock(indexBlockNumber);
int offset = 0;
for (int i=0; i<0x100; i++) {
int blockNumber = AppleUtil.getWordValue(indexBlock[i], indexBlock[i+0x100]);
if (blockNumber > 0) setBlockFree(bitmap, blockNumber);
@ -511,7 +511,7 @@ public class ProdosFormatDisk extends FormattedDisk {
masterIndexBlockData[position] = low;
masterIndexBlockData[position + 0x100] = high;
}
int position = (offset / BLOCK_SIZE);
int position = (offset / BLOCK_SIZE) % 256;
byte low = (byte)(blockNumber % 256);
byte high = (byte)(blockNumber / 256);
indexBlockData[position] = low;