void U8Archive::SetData( const u8 *stuff, u32 len )
{
fst = NULL;
name_table = NULL;
data = NULL;
if( !stuff || len < 0x40 )
{
gprintf( "SetData(): !stuff || len < 0x40 %p %08x\n", stuff, len );
return;
}
stuff = FindU8Tag( stuff, len );
if( !stuff )
{
gprintf( "U8 tag not found\n" );
return;
}
const U8Header * binHdr = (const U8Header *)stuff;
const u8* fst_buffer = stuff + binHdr->rootNodeOffset;
fst = (FstEntry *)fst_buffer;
u32 name_table_offset = fst->filelen * 0xC;
name_table = (char *)( fst_buffer + name_table_offset );
data = (u8*)stuff;
}
bool U8NandArchive::SetFile( const char* nandPath )
{
if(fst)
free(fst);
if(name_table)
free(name_table);
CloseFile();
// open file
if( (fd = ISFS_Open( nandPath, ISFS_OPEN_READ ) ) < 0 )
{
gprintf( "U8NandArchive: ISFS_Open( \"%s\" ) failed\n", nandPath );
return false;
}
// get file size
fstats stats __attribute__(( aligned( 32 ) ));
int ret = ISFS_GetFileStats( fd, &stats );
if( ret < 0 )
{
CloseFile();
gprintf( "U8NandArchive: ISFS_GetFileStats( \"%s\" ) failed\n", nandPath );
return false;
}
// buffer for reading the header and stuff
u8* buffer = (u8*)memalign( 32, 0x800 );
if( !buffer )
{
CloseFile();
gprintf( "U8NandArchive: enomem\n" );
return false;
}
// read a chunk big enough that it should contain the U8 header if there is going to be one
if( (ret = ISFS_Read( fd, buffer, 0x800 )) != 0x800 )
{
free( buffer );
CloseFile();
gprintf( "U8NandArchive: ISFS_Read( 0x800 ) = %i\n", ret );
return false;
}
// find the start of the U8 data
U8Header* tagStart = (U8Header*)FindU8Tag( buffer, ret );
if( !tagStart )
{
free( buffer );
CloseFile();
gprintf( "U8NandArchive: didn't see a U8 tag\n" );
return false;
}
// remember where in the file the U8 starts
dataOffset = ( (u8*)tagStart - buffer );
// allocate memory and read the fst
if( !(fst = (FstEntry *)memalign( 32, RU( tagStart->dataOffset - dataOffset, 32 ) ) )
|| ( ISFS_Seek( fd, dataOffset + tagStart->rootNodeOffset, SEEK_SET ) != (s32)( dataOffset + tagStart->rootNodeOffset ) )
|| ( ISFS_Read( fd, fst, tagStart->dataOffset - dataOffset ) != (s32)( tagStart->dataOffset - dataOffset ) )
|| ( fst->filelen * 0xC > tagStart->dataOffset ) )
{
dataOffset = 0;
free( buffer );
if( fst )
free( fst );
CloseFile();
gprintf( "U8NandArchive: error reading fst\n" );
}
// set name table pointer
u32 name_table_offset = fst->filelen * 0xC;
name_table = ((char *)fst) + name_table_offset;
free( buffer );
return true;
}
bool U8FileArchive::SetFile( const char* filePath )
{
FREE( fst );
FREE( name_table );
CloseFile();
// open file
if( !(fd = fopen( filePath, "rb" ) ) )
{
gprintf( "U8FileArchive: fopen( \"%s\" ) failed\n",filePath );
return false;
}
int ret;
// buffer for reading the header and stuff
u8* buffer = (u8*)memalign( 32, 0x800 );
if( !buffer )
{
CloseFile();
gprintf( "U8FileArchive: enomem\n" );
return false;
}
// read a chunk big enough that it should contain the U8 header if there is going to be one
if( (ret = fread( buffer, 0x800, 1, fd )) != 1 )
{
free( buffer );
CloseFile();
gprintf( "U8FileArchive: fread( 0x800 ) = %i\n", ret );
return false;
}
// find the start of the U8 data
U8Header* tagStart = (U8Header*)FindU8Tag( buffer, 0x800 );
if( !tagStart )
{
free( buffer );
CloseFile();
gprintf( "U8FileArchive: didn't see a U8 tag\n" );
return false;
}
// remember where in the file the U8 starts
dataOffset = ( (u8*)tagStart - buffer );
// allocate memory and read the fst
if( !(fst = (FstEntry *)memalign( 32, RU( tagStart->dataOffset - dataOffset, 32 ) ) )
|| ( fseek( fd, dataOffset + tagStart->rootNodeOffset, SEEK_SET ) )
|| ( fread( fst, tagStart->dataOffset - dataOffset, 1, fd ) != 1 )
|| ( fst->filelen * 0xC > tagStart->dataOffset ) )
{
gprintf( "U8FileArchive: error reading fst\n" );
gprintf( "%08x, %p, %p, %08x\n", dataOffset, buffer, fst, ftell( fd ) );
dataOffset = 0;
free( buffer );
FREE( fst );
CloseFile();
return false;
}
// set name table pointer
u32 name_table_offset = fst->filelen * 0xC;
name_table = ((char *)fst) + name_table_offset;
free( buffer );
return true;
}