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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:21:13 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:21:13 +0100
commit3438e5d3ddf8444f0e31009ffbe8237ef3752c22 (patch)
tree7c2f76d5e9281c130e60fb932c4dda89a49863b6 /lib/cryptopp/files.h
parentMoved source to src (diff)
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Diffstat (limited to 'lib/cryptopp/files.h')
-rw-r--r--lib/cryptopp/files.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/lib/cryptopp/files.h b/lib/cryptopp/files.h
new file mode 100644
index 000000000..a47e856bf
--- /dev/null
+++ b/lib/cryptopp/files.h
@@ -0,0 +1,112 @@
+#ifndef CRYPTOPP_FILES_H
+#define CRYPTOPP_FILES_H
+
+#include "cryptlib.h"
+#include "filters.h"
+#include "argnames.h"
+
+#include <iostream>
+#include <fstream>
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! file-based implementation of Store interface
+class CRYPTOPP_DLL FileStore : public Store, private FilterPutSpaceHelper, public NotCopyable
+{
+public:
+ class Err : public Exception
+ {
+ public:
+ Err(const std::string &s) : Exception(IO_ERROR, s) {}
+ };
+ class OpenErr : public Err {public: OpenErr(const std::string &filename) : Err("FileStore: error opening file for reading: " + filename) {}};
+ class ReadErr : public Err {public: ReadErr() : Err("FileStore: error reading file") {}};
+
+ FileStore() : m_stream(NULL) {}
+ FileStore(std::istream &in)
+ {StoreInitialize(MakeParameters(Name::InputStreamPointer(), &in));}
+ FileStore(const char *filename)
+ {StoreInitialize(MakeParameters(Name::InputFileName(), filename));}
+#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400
+ //! specify file with Unicode name. On non-Windows OS, this function assumes that setlocale() has been called.
+ FileStore(const wchar_t *filename)
+ {StoreInitialize(MakeParameters(Name::InputFileNameWide(), filename));}
+#endif
+
+ std::istream* GetStream() {return m_stream;}
+
+ lword MaxRetrievable() const;
+ size_t TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true);
+ size_t CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end=LWORD_MAX, const std::string &channel=DEFAULT_CHANNEL, bool blocking=true) const;
+ lword Skip(lword skipMax=ULONG_MAX);
+
+private:
+ void StoreInitialize(const NameValuePairs &parameters);
+
+ member_ptr<std::ifstream> m_file;
+ std::istream *m_stream;
+ byte *m_space;
+ size_t m_len;
+ bool m_waiting;
+};
+
+//! file-based implementation of Source interface
+class CRYPTOPP_DLL FileSource : public SourceTemplate<FileStore>
+{
+public:
+ typedef FileStore::Err Err;
+ typedef FileStore::OpenErr OpenErr;
+ typedef FileStore::ReadErr ReadErr;
+
+ FileSource(BufferedTransformation *attachment = NULL)
+ : SourceTemplate<FileStore>(attachment) {}
+ FileSource(std::istream &in, bool pumpAll, BufferedTransformation *attachment = NULL)
+ : SourceTemplate<FileStore>(attachment) {SourceInitialize(pumpAll, MakeParameters(Name::InputStreamPointer(), &in));}
+ FileSource(const char *filename, bool pumpAll, BufferedTransformation *attachment = NULL, bool binary=true)
+ : SourceTemplate<FileStore>(attachment) {SourceInitialize(pumpAll, MakeParameters(Name::InputFileName(), filename)(Name::InputBinaryMode(), binary));}
+#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400
+ //! specify file with Unicode name. On non-Windows OS, this function assumes that setlocale() has been called.
+ FileSource(const wchar_t *filename, bool pumpAll, BufferedTransformation *attachment = NULL, bool binary=true)
+ : SourceTemplate<FileStore>(attachment) {SourceInitialize(pumpAll, MakeParameters(Name::InputFileNameWide(), filename)(Name::InputBinaryMode(), binary));}
+#endif
+
+ std::istream* GetStream() {return m_store.GetStream();}
+};
+
+//! file-based implementation of Sink interface
+class CRYPTOPP_DLL FileSink : public Sink, public NotCopyable
+{
+public:
+ class Err : public Exception
+ {
+ public:
+ Err(const std::string &s) : Exception(IO_ERROR, s) {}
+ };
+ class OpenErr : public Err {public: OpenErr(const std::string &filename) : Err("FileSink: error opening file for writing: " + filename) {}};
+ class WriteErr : public Err {public: WriteErr() : Err("FileSink: error writing file") {}};
+
+ FileSink() : m_stream(NULL) {}
+ FileSink(std::ostream &out)
+ {IsolatedInitialize(MakeParameters(Name::OutputStreamPointer(), &out));}
+ FileSink(const char *filename, bool binary=true)
+ {IsolatedInitialize(MakeParameters(Name::OutputFileName(), filename)(Name::OutputBinaryMode(), binary));}
+#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400
+ //! specify file with Unicode name. On non-Windows OS, this function assumes that setlocale() has been called.
+ FileSink(const wchar_t *filename, bool binary=true)
+ {IsolatedInitialize(MakeParameters(Name::OutputFileNameWide(), filename)(Name::OutputBinaryMode(), binary));}
+#endif
+
+ std::ostream* GetStream() {return m_stream;}
+
+ void IsolatedInitialize(const NameValuePairs &parameters);
+ size_t Put2(const byte *inString, size_t length, int messageEnd, bool blocking);
+ bool IsolatedFlush(bool hardFlush, bool blocking);
+
+private:
+ member_ptr<std::ofstream> m_file;
+ std::ostream *m_stream;
+};
+
+NAMESPACE_END
+
+#endif