diff options
Diffstat (limited to 'CryptoPP/files.cpp')
| -rw-r--r-- | CryptoPP/files.cpp | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/CryptoPP/files.cpp b/CryptoPP/files.cpp deleted file mode 100644 index 453b56248..000000000 --- a/CryptoPP/files.cpp +++ /dev/null @@ -1,259 +0,0 @@ -// files.cpp - written and placed in the public domain by Wei Dai - -#include "pch.h" - -#ifndef CRYPTOPP_IMPORTS - -#include "files.h" - -#include <limits> - -NAMESPACE_BEGIN(CryptoPP) - -using namespace std; - -#ifndef NDEBUG -void Files_TestInstantiations() -{ - FileStore f0; - FileSource f1; - FileSink f2; -} -#endif - -void FileStore::StoreInitialize(const NameValuePairs ¶meters) -{ - m_waiting = false; - m_stream = NULL; - m_file.release(); - - const char *fileName = NULL; -#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400 - const wchar_t *fileNameWide = NULL; - if (!parameters.GetValue(Name::InputFileNameWide(), fileNameWide)) -#endif - if (!parameters.GetValue(Name::InputFileName(), fileName)) - { - parameters.GetValue(Name::InputStreamPointer(), m_stream); - return; - } - - ios::openmode binary = parameters.GetValueWithDefault(Name::InputBinaryMode(), true) ? ios::binary : ios::openmode(0); - m_file.reset(new std::ifstream); -#ifdef CRYPTOPP_UNIX_AVAILABLE - std::string narrowed; - if (fileNameWide) - fileName = (narrowed = StringNarrow(fileNameWide)).c_str(); -#endif -#if _MSC_VER >= 1400 - if (fileNameWide) - { - m_file->open(fileNameWide, ios::in | binary); - if (!*m_file) - throw OpenErr(StringNarrow(fileNameWide, false)); - } -#endif - if (fileName) - { - m_file->open(fileName, ios::in | binary); - if (!*m_file) - throw OpenErr(fileName); - } - m_stream = m_file.get(); -} - -lword FileStore::MaxRetrievable() const -{ - if (!m_stream) - return 0; - - streampos current = m_stream->tellg(); - streampos end = m_stream->seekg(0, ios::end).tellg(); - m_stream->seekg(current); - return end-current; -} - -size_t FileStore::TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel, bool blocking) -{ - if (!m_stream) - { - transferBytes = 0; - return 0; - } - - lword size=transferBytes; - transferBytes = 0; - - if (m_waiting) - goto output; - - while (size && m_stream->good()) - { - { - size_t spaceSize = 1024; - m_space = HelpCreatePutSpace(target, channel, 1, UnsignedMin(size_t(0)-1, size), spaceSize); - - m_stream->read((char *)m_space, (unsigned int)STDMIN(size, (lword)spaceSize)); - } - m_len = (size_t)m_stream->gcount(); - size_t blockedBytes; -output: - blockedBytes = target.ChannelPutModifiable2(channel, m_space, m_len, 0, blocking); - m_waiting = blockedBytes > 0; - if (m_waiting) - return blockedBytes; - size -= m_len; - transferBytes += m_len; - } - - if (!m_stream->good() && !m_stream->eof()) - throw ReadErr(); - - return 0; -} - -size_t FileStore::CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end, const std::string &channel, bool blocking) const -{ - if (!m_stream) - return 0; - - if (begin == 0 && end == 1) - { - int result = m_stream->peek(); - if (result == char_traits<char>::eof()) - return 0; - else - { - size_t blockedBytes = target.ChannelPut(channel, byte(result), blocking); - begin += 1-blockedBytes; - return blockedBytes; - } - } - - // TODO: figure out what happens on cin - streampos current = m_stream->tellg(); - streampos endPosition = m_stream->seekg(0, ios::end).tellg(); - streampos newPosition = current + (streamoff)begin; - - if (newPosition >= endPosition) - { - m_stream->seekg(current); - return 0; // don't try to seek beyond the end of file - } - m_stream->seekg(newPosition); - try - { - assert(!m_waiting); - lword copyMax = end-begin; - size_t blockedBytes = const_cast<FileStore *>(this)->TransferTo2(target, copyMax, channel, blocking); - begin += copyMax; - if (blockedBytes) - { - const_cast<FileStore *>(this)->m_waiting = false; - return blockedBytes; - } - } - catch(...) - { - m_stream->clear(); - m_stream->seekg(current); - throw; - } - m_stream->clear(); - m_stream->seekg(current); - - return 0; -} - -lword FileStore::Skip(lword skipMax) -{ - if (!m_stream) - return 0; - - lword oldPos = m_stream->tellg(); - std::istream::off_type offset; - if (!SafeConvert(skipMax, offset)) - throw InvalidArgument("FileStore: maximum seek offset exceeded"); - m_stream->seekg(offset, ios::cur); - return (lword)m_stream->tellg() - oldPos; -} - -void FileSink::IsolatedInitialize(const NameValuePairs ¶meters) -{ - m_stream = NULL; - m_file.release(); - - const char *fileName = NULL; -#if defined(CRYPTOPP_UNIX_AVAILABLE) || _MSC_VER >= 1400 - const wchar_t *fileNameWide = NULL; - if (!parameters.GetValue(Name::OutputFileNameWide(), fileNameWide)) -#endif - if (!parameters.GetValue(Name::OutputFileName(), fileName)) - { - parameters.GetValue(Name::OutputStreamPointer(), m_stream); - return; - } - - ios::openmode binary = parameters.GetValueWithDefault(Name::OutputBinaryMode(), true) ? ios::binary : ios::openmode(0); - m_file.reset(new std::ofstream); -#ifdef CRYPTOPP_UNIX_AVAILABLE - std::string narrowed; - if (fileNameWide) - fileName = (narrowed = StringNarrow(fileNameWide)).c_str(); -#endif -#if _MSC_VER >= 1400 - if (fileNameWide) - { - m_file->open(fileNameWide, ios::out | ios::trunc | binary); - if (!*m_file) - throw OpenErr(StringNarrow(fileNameWide, false)); - } -#endif - if (fileName) - { - m_file->open(fileName, ios::out | ios::trunc | binary); - if (!*m_file) - throw OpenErr(fileName); - } - m_stream = m_file.get(); -} - -bool FileSink::IsolatedFlush(bool hardFlush, bool blocking) -{ - if (!m_stream) - throw Err("FileSink: output stream not opened"); - - m_stream->flush(); - if (!m_stream->good()) - throw WriteErr(); - - return false; -} - -size_t FileSink::Put2(const byte *inString, size_t length, int messageEnd, bool blocking) -{ - if (!m_stream) - throw Err("FileSink: output stream not opened"); - - while (length > 0) - { - std::streamsize size; - if (!SafeConvert(length, size)) - size = numeric_limits<std::streamsize>::max(); - m_stream->write((const char *)inString, size); - inString += size; - length -= (size_t)size; - } - - if (messageEnd) - m_stream->flush(); - - if (!m_stream->good()) - throw WriteErr(); - - return 0; -} - -NAMESPACE_END - -#endif |