VeraCrypt
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path: root/src/Platform/TextReader.cpp
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/*
 Derived from source code of TrueCrypt 7.1a, which is
 Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed
 by the TrueCrypt License 3.0.

 Modifications and additions to the original source code (contained in this file) 
 and all other portions of this file are Copyright (c) 2013-2016 IDRIX
 and are governed by the Apache License 2.0 the full text of which is
 contained in the file License.txt included in VeraCrypt binary and source
 code distribution packages.
*/

#include "TextReader.h"

namespace VeraCrypt
{
	TextReader::TextReader (const FilePath &path)
	{
		InputFile.reset (new File);
		InputFile->Open (path);
		InputStream = shared_ptr <Stream> (new FileStream (InputFile));
	}

	bool TextReader::ReadLine (string &outputString)
	{
		outputString.erase();

		char c;
		while (InputStream->Read (BufferPtr ((byte *) &c, sizeof (c))) == sizeof (c))
		{
			if (c == '\r')
				continue;

			if (c == '\n')
				return true;

			outputString += c;
		}
		return !outputString.empty();
	}
}
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ struct zip_source_file_stat { zip_uint64_t size; /* must be valid for regular files */ time_t mtime; /* must always be valid, is initialized to current time */ bool exists; /* must always be vaild */ bool regular_file; /* must always be valid */ }; typedef struct zip_source_file_context zip_source_file_context_t; typedef struct zip_source_file_operations zip_source_file_operations_t; typedef struct zip_source_file_stat zip_source_file_stat_t; struct zip_source_file_context { zip_error_t error; /* last error information */ zip_int64_t supports; /* reading */ char *fname; /* name of file to read from */ void *f; /* file to read from */ zip_stat_t st; /* stat information passed in */ zip_file_attributes_t attributes; /* additional file attributes */ zip_error_t stat_error; /* error returned for stat */ zip_uint64_t start; /* start offset of data to read */ zip_uint64_t len; /* length of the file, 0 for up to EOF */ zip_uint64_t offset; /* current offset relative to start (0 is beginning of part we read) */ /* writing */ char *tmpname; void *fout; zip_source_file_operations_t *ops; void *ops_userdata; }; /* The following methods must be implemented to support each feature: - close, read, seek, and stat must always be implemented. - To support specifying the file by name, open, and strdup must be implemented. - For write support, the file must be specified by name and close, commit_write, create_temp_output, remove, rollback_write, and tell must be implemented. - create_temp_output_cloning is always optional. */ struct zip_source_file_operations { void (*close)(zip_source_file_context_t *ctx); zip_int64_t (*commit_write)(zip_source_file_context_t *ctx); zip_int64_t (*create_temp_output)(zip_source_file_context_t *ctx); zip_int64_t (*create_temp_output_cloning)(zip_source_file_context_t *ctx, zip_uint64_t len); bool (*open)(zip_source_file_context_t *ctx); zip_int64_t (*read)(zip_source_file_context_t *ctx, void *buf, zip_uint64_t len); zip_int64_t (*remove)(zip_source_file_context_t *ctx); void (*rollback_write)(zip_source_file_context_t *ctx); bool (*seek)(zip_source_file_context_t *ctx, void *f, zip_int64_t offset, int whence); bool (*stat)(zip_source_file_context_t *ctx, zip_source_file_stat_t *st); char *(*string_duplicate)(zip_source_file_context_t *ctx, const char *); zip_int64_t (*tell)(zip_source_file_context_t *ctx, void *f); zip_int64_t (*write)(zip_source_file_context_t *ctx, const void *data, zip_uint64_t len); }; zip_source_t *zip_source_file_common_new(const char *fname, void *file, zip_uint64_t start, zip_int64_t len, const zip_stat_t *st, zip_source_file_operations_t *ops, void *ops_userdata, zip_error_t *error);