public void ValuesPreserved()
{
MemoryStream ms = new MemoryStream();
TarEntry entry;
DateTime modTime = DateTime.Now;
using (TarOutputStream tarOut = new TarOutputStream(ms))
{
entry = TarEntry.CreateTarEntry("TestEntry");
entry.GroupId = 12;
entry.UserId = 14;
entry.ModTime = modTime;
entry.UserName = "******";
entry.GroupName = "GroupName";
entry.TarHeader.Mode = 12345;
tarOut.PutNextEntry(entry);
}
MemoryStream ms2 = new MemoryStream();
ms2.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);
ms2.Seek(0, SeekOrigin.Begin);
using (TarInputStream tarIn = new TarInputStream(ms2))
{
TarEntry nextEntry = tarIn.GetNextEntry();
Assert.AreEqual(entry.TarHeader.Checksum, nextEntry.TarHeader.Checksum, "Checksum");
Assert.IsTrue(nextEntry.Equals(entry), "Entries should be equal");
Assert.IsTrue(nextEntry.TarHeader.Equals(entry.TarHeader), "Headers should match");
// Tar only stores seconds
DateTime truncatedTime = new DateTime(modTime.Year, modTime.Month, modTime.Day,
modTime.Hour, modTime.Minute, modTime.Second);
Assert.AreEqual(truncatedTime, nextEntry.ModTime, "Modtimes should match");
int entryCount = 0;
while ( nextEntry != null )
{
++entryCount;
nextEntry = tarIn.GetNextEntry();
}
Assert.AreEqual(1, entryCount, "Expected 1 entry");
}
}
void TryLongName(string name)
{
MemoryStream ms = new MemoryStream();
using ( TarOutputStream tarOut = new TarOutputStream(ms) )
{
DateTime modTime = DateTime.Now;
TarEntry entry = TarEntry.CreateTarEntry(name);
tarOut.PutNextEntry(entry);
}
MemoryStream ms2 = new MemoryStream();
ms2.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);
ms2.Seek(0, SeekOrigin.Begin);
using (TarInputStream tarIn = new TarInputStream(ms2))
{
TarEntry nextEntry = tarIn.GetNextEntry();
Assert.AreEqual(nextEntry.Name, name, "Name match failure");
}
}
public void Checksum()
{
MemoryStream ms = new MemoryStream();
using ( TarOutputStream tarOut = new TarOutputStream(ms) )
{
DateTime modTime = DateTime.Now;
TarEntry entry = TarEntry.CreateTarEntry("TestEntry");
entry.TarHeader.Mode = 12345;
tarOut.PutNextEntry(entry);
}
MemoryStream ms2 = new MemoryStream();
ms2.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);
ms2.Seek(0, SeekOrigin.Begin);
TarEntry nextEntry;
using (TarInputStream tarIn = new TarInputStream(ms2))
{
nextEntry = tarIn.GetNextEntry();
Assert.IsTrue(nextEntry.TarHeader.IsChecksumValid, "Checksum should be valid");
}
MemoryStream ms3 = new MemoryStream();
ms3.Write(ms.GetBuffer(), 0, ms.GetBuffer().Length);
ms3.Seek(0, SeekOrigin.Begin);
ms3.Write(new byte[1] { 34 }, 0, 1);
ms3.Seek(0, SeekOrigin.Begin);
using (TarInputStream tarIn = new TarInputStream(ms3))
{
bool trapped = false;
try
{
nextEntry = tarIn.GetNextEntry();
}
catch (TarException)
{
trapped = true;
}
Assert.IsTrue(trapped, "Checksum should be invalid");
}
}
/// <summary>
/// Initalise a TarArchive for input.
/// </summary>
/// <param name="stream">The <see cref="TarInputStream"/> to use for input.</param>
protected TarArchive(TarInputStream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
tarIn = stream;
}