question: readblock and readnextheaderblock are the methods that users of this class should use to read header blocks from the tar file . readnextheaderblock continues working through the tar file from the current point until it finds a block with a non-0 first byte . concode_field_sep byte[] readBuffer concode_elem_sep long bytesRead concode_elem_sep int readBufferBlocks concode_elem_sep InputStream readStream concode_elem_sep int compressionType concode_field_sep int getReadBufferBlocks concode_elem_sep void readBlock concode_elem_sep void readBlocks concode_elem_sep void readCompressedBlocks concode_elem_sep void close
target: boolean function ( ) { try { while ( readStream . available ( ) > 0 ) { readBlock ( ) ; if ( readBuffer [ 0 ] != 0 ) { return true ; } } } catch ( EOFException loc0 ) { } close ( ) ; return false ; }