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go-apfs's Issues

Feature Request: `apfs cat`

Basically identical to cat(1) just so that I can see the contents of a file without having to run apfs cp.

Support for raw APFS

The new iOS 16.0 ipsws contain cryptexes for divided updates that are in raw APFS dmgs (I think).

iOS/ipsw/dmgs 
➜ file 078-37456-031.dmg
078-37456-031.dmg: Apple File System (APFS), blocksize 4096

iOS/ipsw/dmgs 
➜ apfs ls 078-37456-031.dmg                                               
Error: found unexpected UDIFResourceFile signure: , expected: koly

Support for dmgs extracted from IMG4 

> tar -xf iPhone14,5_15.4.1_19E258_Restore.ipsw 078-29017-016.dmg                 

> file 078-29017-016.dmg 
078-29017-016.dmg: IM4P, ramdisk

> ipsw img4 extract 078-29017-016.dmg           
   • Parsing Im4p             
      • Exracting payload to file 078-29017-016.dmg.payload

> apfs ls 078-29017-016.dmg.payload                           
Error: found unexpected UDIFResourceFile signure: , expected: koly

As you can see from that, the dmgs extracted from an IM4P can be mounted by hdiutil but not parsed by go-apfs.

unknown compression type: CMP_ATTR_UNCOMPRESSED

Trying to extract small files from an iOS rootfs dmg gives this error:

$ apfs cp /data/038-44862-252.dmg /System/Library/FeatureFlags/Domain/Sharing.plist
   ⨯ unknown compression type: CMP_ATTR_UNCOMPRESSED

(This dmg is from iPhone_4.7_14.5_18E199_Restore.ipsw but any should work to reproduce the issue)

I speculate that it fails for the exact same set of files that also fail with apfs-fuse (giving "input/output error"), but I haven't done enough testing to be sure.

dyld extraction failed on IOS 16 ipsw

Hi.
Thanks a lot for all of your work here !

Are you going to add support to the new compression method (LZBITMAP) ?
I'm failing extracting /root/System/Library/Caches/com.apple.dyld/dyld_shared_cache_arm64e.28.dyldlinkedit..

dpkg conflict with ipsw

Trying to install this alongside with ipsw from the debs results in the following dpkg error,

Building dependency tree
Reading state information... Done
Note, selecting 'go-apfs' instead of './go-apfs_1.0.16_linux_x86_64.deb'
The following NEW packages will be installed:
  go-apfs
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/2954 kB of archives.
After this operation, 6962 kB of additional disk space will be used.
Get:1 /home/haow6/go-apfs_1.0.16_linux_x86_64.deb go-apfs amd64 1.0.16 [2954 kB]
(Reading database ... 42651 files and directories currently installed.)
Preparing to unpack .../go-apfs_1.0.16_linux_x86_64.deb ...
Unpacking go-apfs (1.0.16) ...
dpkg: error processing archive /home/haow6/go-apfs_1.0.16_linux_x86_64.deb (--unpack):
 trying to overwrite '/usr/share/doc/ipsw/copyright', which is also in package ipsw 3.1.107
Errors were encountered while processing:
 /home/haow6/go-apfs_1.0.16_linux_x86_64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

Add recursive ls

I would like to get the entire filesystem tree of an APFS dmg. Currently apfs ls only shows a single directory, and running repeated apfs ls foo.dmg /some/directory for every subdirectory found on previous commands is extremely slow. It would be useful if ls had a recursive option. Or maybe a new sub-command...

"Unexpected EOF" error

When extracting /System/Library/FeatureFlags/Global.plist from iPhone_4.7_14.5_18E199_Restore.ipsw rootfs (038-44862-252.dmg), I get an "unexpected EOF" error:

$ apfs cp 038-44862-252.dmg /System/Library/FeatureFlags/Global.plist
   ⨯ unexpected EOF

Running with -V gives confusing log messages, like it was traversing an unrelated directory when the error happened...

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