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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2013-06-22 16:16:13 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2014-11-08 23:18:07 +0100 |
| commit | c606f0866c3a2a5db3ef9bc41738ef33eb9612a9 (patch) | |
| tree | 5847c644cdfff3c1dd55b88b565448087ae89f11 /src/Platform/MemoryStream.cpp | |
| download | VeraCrypt-c606f0866c3a2a5db3ef9bc41738ef33eb9612a9.tar.gz VeraCrypt-c606f0866c3a2a5db3ef9bc41738ef33eb9612a9.zip | |
Add original TrueCrypt 7.1a sources
Diffstat (limited to 'src/Platform/MemoryStream.cpp')
| -rw-r--r-- | src/Platform/MemoryStream.cpp | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/Platform/MemoryStream.cpp b/src/Platform/MemoryStream.cpp new file mode 100644 index 00000000..42d38427 --- /dev/null +++ b/src/Platform/MemoryStream.cpp @@ -0,0 +1,47 @@ +/*
+ Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#include "Exception.h"
+#include "MemoryStream.h"
+
+namespace TrueCrypt
+{
+ MemoryStream::MemoryStream (const ConstBufferPtr &data) :
+ ReadPosition (0)
+ {
+ Data = vector <byte> (data.Size());
+ BufferPtr (&Data[0], Data.size()).CopyFrom (data);
+ }
+
+ uint64 MemoryStream::Read (const BufferPtr &buffer)
+ {
+ if (Data.size() == 0)
+ throw ParameterIncorrect (SRC_POS);
+
+ ConstBufferPtr streamBuf (*this);
+ size_t len = buffer.Size();
+ if (streamBuf.Size() - ReadPosition < len)
+ len = streamBuf.Size() - ReadPosition;
+
+ BufferPtr(buffer).CopyFrom (streamBuf.GetRange (ReadPosition, len));
+ ReadPosition += len;
+ return len;
+ }
+
+ void MemoryStream::ReadCompleteBuffer (const BufferPtr &buffer)
+ {
+ if (Read (buffer) != buffer.Size())
+ throw InsufficientData (SRC_POS);
+ }
+
+ void MemoryStream::Write (const ConstBufferPtr &data)
+ {
+ for (uint64 i = 0; i < data.Size(); i++)
+ Data.push_back (data[i]);
+ }
+}
|