mirror of
https://github.com/wiidev/usbloadergx.git
synced 2024-11-05 19:15:07 +01:00
129 lines
3.7 KiB
C
129 lines
3.7 KiB
C
|
/****************************************************************************
|
||
|
* Copyright (C) 2012 Dimok and giantpune
|
||
|
*
|
||
|
* 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 3 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/>.
|
||
|
****************************************************************************/
|
||
|
#ifndef U8ARCHIVE_H
|
||
|
#define U8ARCHIVE_H
|
||
|
|
||
|
#include <string>
|
||
|
#include <gccore.h>
|
||
|
#include "tools.h"
|
||
|
|
||
|
class U8Archive
|
||
|
{
|
||
|
public:
|
||
|
U8Archive( const u8 *stuff, u32 len );
|
||
|
|
||
|
// set the data used for this archive
|
||
|
virtual void SetData( const u8 *stuff, u32 len );
|
||
|
|
||
|
// returns a pointer to a file within the archive
|
||
|
virtual u8* GetFile( const char *path, u32 *size = NULL ) const;
|
||
|
virtual u8* GetFile( const std::string &path, u32 *size = NULL ) const;
|
||
|
virtual u8* GetFile( u32 fstIdx, u32 *size = NULL ) const;
|
||
|
|
||
|
// gets a file and copies it into a newly memalign()'d buffer
|
||
|
//! if the data looks ASH or LZ77 compressed, it is decompressed
|
||
|
virtual u8* GetFileAllocated( const char *path, u32 *size = NULL ) const;
|
||
|
virtual u8* GetFileAllocated( const std::string &path, u32 *size = NULL ) const;
|
||
|
virtual u8* GetFileAllocated( u32 fstIdx, u32 *size = NULL ) const;
|
||
|
|
||
|
virtual u32 FileDescriptor( const char *path ) const;
|
||
|
virtual u32 FileDescriptor( const std::string &path ) const{ return FileDescriptor( path.c_str() ); }
|
||
|
virtual u8* GetFileFromFd( u32 fd, u32 *size = NULL )const;
|
||
|
|
||
|
|
||
|
protected:
|
||
|
struct U8Header
|
||
|
{
|
||
|
u32 magic;
|
||
|
u32 rootNodeOffset;
|
||
|
u32 headerSize;
|
||
|
u32 dataOffset;
|
||
|
u8 zeroes[16];
|
||
|
} __attribute__((packed));
|
||
|
|
||
|
struct FstEntry
|
||
|
{
|
||
|
u8 filetype;
|
||
|
char name_offset[3];
|
||
|
u32 fileoffset;
|
||
|
u32 filelen;
|
||
|
} __attribute__((packed));
|
||
|
|
||
|
FstEntry *fst;
|
||
|
char *name_table;
|
||
|
u8* data;
|
||
|
|
||
|
u32 NextEntryInFolder( u32 current, u32 directory ) const ;
|
||
|
s32 EntryFromPath( const char *path, int d = 0 ) const ;
|
||
|
char *FstName( const FstEntry *entry ) const;
|
||
|
u8 *DecompressCopy( const u8 * stuff, u32 len, u32 *size ) const;
|
||
|
|
||
|
static int strlen_slash( const char *s );
|
||
|
|
||
|
static int strcasecmp_slash( const char *s1, const char *s2 );
|
||
|
|
||
|
// lightweight toupper - because U8 archives are case-insinsitive
|
||
|
static char toupper( char c )
|
||
|
{
|
||
|
if( c <= 'z' && c >= 'a' )
|
||
|
return c - 0x20;
|
||
|
return c;
|
||
|
}
|
||
|
|
||
|
// looks in some common offsets for a U8 tag
|
||
|
static const u8* FindU8Tag( const u8* stuff, u32 len );
|
||
|
};
|
||
|
|
||
|
// class to access files from an archive that is saved on the nand
|
||
|
// GetFile() will return NULL, use GetfileAllocated()
|
||
|
class U8NandArchive : public U8Archive
|
||
|
{
|
||
|
public:
|
||
|
U8NandArchive( const char* nandPath );
|
||
|
~U8NandArchive();
|
||
|
|
||
|
bool SetFile( const char* nandPath );
|
||
|
|
||
|
|
||
|
// not implimented in this subclass...
|
||
|
void SetData( const u8 *stuff, u32 len ){}
|
||
|
u8* GetFile( const char *path, u32 *size = NULL ) const { return NULL; }
|
||
|
u8* GetFile( const std::string &path, u32 *size = NULL ) const { return NULL; }
|
||
|
u8* GetFileFromFd( u32 fd, u32 *size = NULL )const { return NULL; }
|
||
|
|
||
|
|
||
|
// gets a file and copies it into a newly memalign()'d buffer
|
||
|
//! if the data looks ASH or LZ77 compressed, it is decompressed
|
||
|
u8* GetFileAllocated( const char *path, u32 *size = NULL ) const;
|
||
|
|
||
|
private:
|
||
|
s32 fd;
|
||
|
|
||
|
// where the U8 header starts within the file
|
||
|
u32 dataOffset;
|
||
|
void CloseFile()
|
||
|
{
|
||
|
if( fd >= 0 )
|
||
|
{
|
||
|
ISFS_Close( fd );
|
||
|
fd = -1;
|
||
|
}
|
||
|
}
|
||
|
};
|
||
|
|
||
|
#endif // U8ARCHIVE_H
|