public String computeDataSizeAndType(RandomAccessFile fin) throws IOException {
SinAddr a = map.get(0);
byte[] res = new byte[(int) a.getDataLength()];
fin.seek(getDataHeaderSize() + map.getSize() + a.getSrcOffset());
fin.read(res);
byte[] magic = new byte[4];
int pos = 0;
while (res[pos] == 0) pos++;
int startpos = pos;
pos = 0;
System.arraycopy(res, startpos + pos, magic, 0, magic.length);
if (new String(magic).contains("ELF")) return "elf";
while (!HexDump.toHex(magic).startsWith("[FF, FF, 53, EF")) {
pos++;
try {
System.arraycopy(res, startpos + pos, magic, 0, magic.length);
} catch (Exception e) {
return "unknown";
}
if (new String(magic).contains("ELF")) return "elf";
}
// if (pos>=500) return "unknown";
pos = pos - 54;
byte[] header = new byte[58];
System.arraycopy(res, startpos + pos, header, 0, header.length);
byte[] bcount = new byte[4];
System.arraycopy(header, 4, bcount, 0, bcount.length);
BytesUtil.revert(bcount);
long blockcount = BytesUtil.getInt(bcount);
outputsize = blockcount * 4L * 1024L;
return "ext4";
}
public void addAddr(SinAddr addr) {
map.put(map.size(), addr);
}
public int getDataOffset() {
return getDataHeaderSize() + map.getSize();
}
public long getOutputSize() {
if (outputsize > 0L) return outputsize;
return map.get(map.size() - 1).getDestOffset() + map.get(map.size() - 1).getDataLength();
}
