can't recover file after mount

[mgeitz]

can't recover file after mount

[mgeitz]

Hey @fact0real - thanks for submitting an issue 🎉

Could you provide a few steps to reproduce?

Are you using more than one .png image in your filesystem?

[fact0real]

Hey
first of all update the git repo:

$ lsb_release -a
No LSB modules are available.
Distributor ID:	Debian
Description:	Debian GNU/Linux testing (buster)
Release:	testing
Codename:	buster
$ git pull
Already up to date.
$ make
gcc -Wall -D_FILE_OFFSET_BITS=8 -c afspng.c -o afspng.o
gcc afspng.o albumfs.c -Wall -D_FILE_OFFSET_BITS=8 `pkg-config fuse --cflags --libs` -lpng -lm -lssl -lcrypto -o albumfs
<command-line>:0:0: warning: "_FILE_OFFSET_BITS" redefined
<command-line>:0:0: note: this is the location of the previous definition
rm afspng.o
$ sudo make install
cp albumfs /usr/bin
gzip < albumfs.1 > albumfs.1.gz
mkdir -p /usr/local/share/man/man1
mv albumfs.1.gz /usr/local/share/man/man1/albumfs.1.gz

Then I have provided three png image and use -format option:

$ ls image
./  ../  800px-Dyson_Bubble.png  Auto_Racing_Chequered.png  sample_6.png
$ albumfs -format image/sample_6.png 
Enter drive name:
test
Enter encryption key for test.afs:
1234test


#### New Filesystem ####
Name       : test.afs
PNG Count  : 2
Capacity   : 0.36 MB
Consumed   : 0.00 MB

test.afs mounted.
AlbumFS will continue to run in the foreground.
Use Ctrl+C to safely unmount the filesystem.

In the another tab, create sample small text file and:

$ echo -n 'this is just for test' > test.afs/test.txt
$ md5sum test.afs/test.txt 
f8b57f2ff96a87c2a375f808dc2fc965  test.afs/test.txt

and the return to the previous tab and hit Ctrl + C.

^C
Safely unmounted test.afs, goodbye!

Now when I want to mount the file system:

$ albumfs -mount image/sample_6.png 
Enter drive name:
test
Enter encryption key for test.afs:
1234test

Found filesystem test.afs [19.00/360000.00] 1 files in 2 images

test.afs mounted.
AlbumFS will continue to run in the foreground.
Use Ctrl+C to safely unmount the filesystem.

But the mounted file system have wrong test.txt file, coz:

$ md5sum test.afs/test.txt 
4c71ffba0dc127dec6da13f657a54698  test.afs/test.txt

this is my problem.