fizanagi

Goal

recover 1 cluster file from fat32

Compile

give sane output:

make

if you want a dumb program that comform to csci3150 submission guideline:

make dumb

give debug message:

make debug

Functionality

• show file system info +OK+
• list root directory
• sub directory +OK+
• (8.3name) & info +OK+
• (long file name) & info +OK+
• root more than 1 cluster +OK+
• file recovery (1 cluster at root)
• search +OK+
• dump out +OK+
• identify ambiguity +OK+
• long file name ambiguity
• extra
• recover multiple file +OK+
• the -r and -R has no difference: the program auto search for all 8.3name and lfn +OK+
• list deleted file +OK+ (what is the use if you even dont know the name of deleted file?)

Handy command

dd if=/dev/zero of=fatsample bs=1M count=128
mkfs.vfat -s 2 -F 32 fatsample
sudo losetup /dev/loop0 fatsample
sudo mount /dev/loop0 ./mnt
sync  # flush to fatsample without umount

Reference

Some algorithm and structure from dosfsck

Thus it is GPL3

Coders

Chiu Yue Chun He ZiXuan

感想

食屎啦BillGate$