| public SetData ( byte data, int index, int count ) : void | ||
| data | byte | The raw data to extract values from. |
| index | int | The index to start extracting values from. |
| count | int | The number of bytes available. |
| return | void | |
public void SetData(byte[] data, int index, int count) {
using (var ms=new MemoryStream(data, index, count, false))
using (var helperStream=new ZipHelperStream(ms)) {
helperStream.ReadLEInt(); // Reserved
while (helperStream.Position<helperStream.Length) {
int ntfsTag=helperStream.ReadLEShort();
int ntfsLength=helperStream.ReadLEShort();
if (ntfsTag==1) {
if (ntfsLength>=24) {
long lastModificationTicks=helperStream.ReadLELong();
_lastModificationTime=DateTime.FromFileTime(lastModificationTicks);
long lastAccessTicks=helperStream.ReadLELong();
_lastAccessTime=DateTime.FromFileTime(lastAccessTicks);
long createTimeTicks=helperStream.ReadLELong();
_createTime=DateTime.FromFileTime(createTimeTicks);
}
break;
} else {
// An unknown NTFS tag so simply skip it.
helperStream.Seek(ntfsLength, SeekOrigin.Current);
}
}
}
}
public void TaggedDataHandling()
{
NTTaggedData tagData = new NTTaggedData();
DateTime modTime = tagData.LastModificationTime;
byte[] rawData = tagData.GetData();
tagData.LastModificationTime = tagData.LastModificationTime + TimeSpan.FromSeconds(40);
Assert.AreNotEqual(tagData.LastModificationTime, modTime);
tagData.SetData(rawData, 0, rawData.Length);
Assert.AreEqual(10, tagData.TagID, "TagID mismatch");
Assert.AreEqual(modTime, tagData.LastModificationTime, "NT Mod time incorrect");
tagData.CreateTime=DateTime.FromFileTimeUtc(0);
tagData.LastAccessTime=new DateTime(9999, 12, 31, 23, 59, 59);
rawData=tagData.GetData();
ExtendedUnixData unixData = new ExtendedUnixData();
modTime = unixData.ModificationTime;
unixData.ModificationTime=modTime; // Ensure flag is set.
rawData = unixData.GetData();
unixData.ModificationTime += TimeSpan.FromSeconds(100);
Assert.AreNotEqual(unixData.ModificationTime, modTime);
unixData.SetData(rawData, 0, rawData.Length);
Assert.AreEqual(0x5455, unixData.TagID, "TagID mismatch");
Assert.AreEqual(modTime, unixData.ModificationTime, "Unix mod time incorrect");
}
