data_snk.cpp

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/*
* DataSink
* (C) 1999-2007 Jack Lloyd
*     2005 Matthew Gregan
*     2017 Philippe Lieser
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
 
#include <botan/data_snk.h>
 
#include <botan/exceptn.h>
#include <botan/mem_ops.h>
#include <botan/internal/fmt.h>
#include <ostream>
 
#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)
   #include <fstream>
#endif
 
namespace Botan {
 
/*
* Write to a stream
*/
void DataSink_Stream::write(const uint8_t buf[], size_t length) {
   m_sink.write(cast_uint8_ptr_to_char(buf), length);
   if(!m_sink.good()) {
      throw Stream_IO_Error("DataSink_Stream: Failure writing to " + m_identifier);
   }
}
 
/*
* Flush the stream
*/
void DataSink_Stream::end_msg() {
   m_sink.flush();
   if(!m_sink.good()) {
      throw Stream_IO_Error("DataSink_Stream: Failure flushing " + m_identifier);
   }
}
 
/*
* DataSink_Stream Constructor
*/
DataSink_Stream::DataSink_Stream(std::ostream& out, std::string_view name) : m_identifier(name), m_sink(out) {}
 
#if defined(BOTAN_TARGET_OS_HAS_FILESYSTEM)
 
/*
* DataSink_Stream Constructor
*/
DataSink_Stream::DataSink_Stream(std::string_view path, bool use_binary) :
      m_identifier(path),
      m_sink_memory(std::make_unique<std::ofstream>(std::string(path), use_binary ? std::ios::binary : std::ios::out)),
      m_sink(*m_sink_memory) {
   if(!m_sink.good()) {
      throw Stream_IO_Error(fmt("DataSink_Stream: Failure opening path '{}'", path));
   }
}
#endif
 
DataSink_Stream::~DataSink_Stream() = default;
 
}  // namespace Botan