void writeTo(byte mainStream[], int offset, HWPFOutputStream tableStream) throws IOException {
int length = _fields.length / 2;
LittleEndian.putShort(mainStream, offset, (short) length);
offset += 2;
for (int x = 0; x < length; x++) {
UnhandledDataStructure ds = (UnhandledDataStructure) _unknownMap.get(Integer.valueOf(x));
if (ds != null) {
_fields[x * 2] = tableStream.getOffset();
LittleEndian.putInt(mainStream, offset, tableStream.getOffset());
offset += 4;
byte buf[] = ds.getBuf();
tableStream.write(buf);
_fields[x * 2 + 1] = buf.length;
LittleEndian.putInt(mainStream, offset, buf.length);
offset += 4;
} else {
LittleEndian.putInt(mainStream, offset, _fields[x * 2]);
offset += 4;
LittleEndian.putInt(mainStream, offset, _fields[x * 2 + 1]);
offset += 4;
}
}
}
public FIBFieldHandler(
byte mainStream[],
int startOffset,
byte tableStream[],
HashSet offsetList,
boolean areKnown) {
_unknownMap = new HashMap();
int numFields = LittleEndian.getShort(mainStream, startOffset);
int offset = startOffset + 2;
_fields = new int[numFields * 2];
for (int x = 0; x < numFields; x++) {
int fieldOffset = x * 8 + offset;
int dsOffset = LittleEndian.getInt(mainStream, fieldOffset);
fieldOffset += 4;
int dsSize = LittleEndian.getInt(mainStream, fieldOffset);
if (offsetList.contains(Integer.valueOf(x)) ^ areKnown && dsSize > 0)
if (dsOffset + dsSize > tableStream.length) {
log.log(
POILogger.WARN,
(new StringBuilder())
.append("Unhandled data structure points to outside the buffer. offset = ")
.append(dsOffset)
.append(", length = ")
.append(dsSize)
.append(", buffer length = ")
.append(tableStream.length)
.toString());
} else {
UnhandledDataStructure unhandled =
new UnhandledDataStructure(tableStream, dsOffset, dsSize);
_unknownMap.put(Integer.valueOf(x), unhandled);
}
_fields[x * 2] = dsOffset;
_fields[x * 2 + 1] = dsSize;
}
}