NsaReader.h

/* -*- C++ -*-
 *
 *  NsaReader.h - Reader from a NSA archive
 *
 *  Copyright (c) 2001-2008 Ogapee. All rights reserved.
 *  (original ONScripter, of which this is a fork).
 *
 *  ogapee@aqua.dti2.ne.jp
 *
 *  Copyright (c) 2007-2010 "Uncle" Mion Sonozaki
 *
 *  UncleMion@gmail.com
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, see <http://www.gnu.org/licenses/>
 *  or write to the Free Software Foundation, Inc.,
 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

// Modified by Mion, December 2009, to add NS2 archive support.

#ifndef __NSA_READER_H__
#define __NSA_READER_H__

#include "SarReader.h"
#define MAX_EXTRA_ARCHIVE 9
#define MAX_NS2_ARCHIVE_NUM 99
#define MAX_NS2_ARCHIVE 100

class NsaReader : public SarReader
{
public:
    NsaReader( PathProvider &provider, int nsaoffset = 0, const unsigned char *key_table=NULL );
    ~NsaReader();

#ifndef TOOLS_BUILD
    int open( const char *nsa_path=NULL );
    int processArchives( const PathProvider &provider );
#endif
    const char *getArchiveName() const;
    int getNumFiles();
    
    size_t getFileLength( const char *file_name );
    size_t getFile( const char *file_name, unsigned char *buf, int *location=NULL );
    struct FileInfo getFileByIndex( unsigned int index );

#ifdef TOOLS_BUILD
    int openForConvert( const char *nsa_name, int archive_type=ARCHIVE_TYPE_NSA, int nsaoffset = 0 );
    ArchiveInfo* openForCreate( const char *nsa_name, int archive_type=ARCHIVE_TYPE_NSA, int nsaoffset = 0 );
    int writeHeader( FILE *fp, int archive_type=ARCHIVE_TYPE_NSA, int nsaoffset = 0 );
    size_t putFile( FILE *fp, int no, size_t offset, size_t length, size_t original_length, int compression_type, bool modified_flag, unsigned char *buffer );
#endif
private:
    bool sar_flag;
    int nsa_offset;
    int num_of_nsa_archives;
    int num_of_ns2_archives;
    const char *nsa_archive_ext;
    const char *ns2_archive_ext;
    struct ArchiveInfo archive_info_nsa; // for the arc.nsa file
    struct ArchiveInfo archive_info2[MAX_EXTRA_ARCHIVE]; // for the arc1.nsa, arc2.nsa files
    struct ArchiveInfo archive_info_ns2[MAX_NS2_ARCHIVE]; // for the ##.ns2 files

    size_t getFileLengthSub( ArchiveInfo *ai, const char *file_name );
};

#endif // __NSA_READER_H__