FAT32 File System

Overview

User space shell that interprets and interacts with a FAT32 file system image.

Functionality

• Opens FAT32 image.
• Navigate the FAT32 image.
• Closes FAT32 image.
• Prints out boot information such as:
  • BPB_BytsPerSec
  • BPB_SecPerClus
  • BPB_RsvdSecCnt
  • BPB_NumFats
  • BPB_FATSz32
• Print the attributes and starting cluster number of files and directories.
• Retrieves a file from the FAT32 image and places it in your current working directory.
• Retrieves a file from the current working directory and places it in your FAT32 image.

What I Learned

• How the boot sector is structured and the importance of the information.
• How individual files are structured in the FAT32 file system.
• What happens when you "delete" a file.
• How directories are structured and the methods in maneuvering them.
• How to extract files from and inject files into the FAT32 image file.

Known Bugs

• Put adds file to the directory but can not stat it or read it.
• Get results in only a 512 byte file if the file is larger than 512 bytes.