text: #ifndef _SUPER_BLOCK_H_
  #define _SUPER_BLOCK_H_
  
  #define SUPER_BLOCK_OFFSET  1024
  #define INODE_OFFSET   2048
  #define DATA_BLOCK_OFFSET    10485760
  #define MAX_INODE      100
  #define MAX_DATA_BLOCK   25600
  #define BLOCK_SIZE   4096
  
  #define MAX_COMMAND_LENGTH 50
  #define MAX_FILE_SIZE BLOCK_SIZE*1024
  
  typedef struct _super_block_
  {
          int inode_offset;
          int data_block_offset;
          int max_inode;
          int max_data_block;
          int next_available_inode;
          int next_available_data_block;
          int block_size;
  }superblock;
  
  superblock* read_sb(int fd);
  void print_sb_info(superblock* sb);
  void print_sb_region(int fd);
  #endif
  