Database Users

[Q] IMGDIFF2 patches

I've noticed that some update.zips include patch files. I've done quite a bit of reading up on what these patches are and how they work... I just can't find anywhere to explain how to create them. It would be extremely useful for myself and I'm sure others to make our own patch files (i.e. someapp.apk.p) to, lets say change a few graphics in several apk's in a single zip file. Anyone able to shed some light on this before i start trying to reverse engineer the applypatch code from Google?

Does anyone have any insight?
Sent from my DROIDX using Tapatalk

Do you have an example update.zip file with a patch that I could look at?

Gene Poole said:
Do you have an example update.zip file with a patch that I could look at?
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Thanks for the reply, here is an update.zip. all of the patches I've looked at start with "IMGDIFF2" and most have some "BSDIFF4##" mixed in there as well.
http://www.megaupload.com/?d=AOFCEKLW
Here is a imgdiff.c file in which the commented section sheds a little light on it. Although i believe that after 2.1 IMGDIFF1 was replaced with IMGDIFF2.
http://www.netmite.com/android/mydroid/2.0/build/tools/applypatch/imgdiff.c

Well, thanks for providing me the info, but looking into it, it looks like this has little value beyond OEM updates and so forth where it can be guaranteed that the ROM is pristine as it seems that this does diffs directly on the flash image itself.

Thanks for taking the time to look into it for me. theoretically however, couldn't you use this for individual apk's? It appears that the directory structure in the zip would allow you to patch anything. The reason i am looking into this is to change an icon in a group of apk's and then just flash a small update.zip of patches. I know that there may be other ways of doing this but I'd like to try if for no other reason to prove to myself it can be done.
Sorry if I'm incorrect in this, just trying to learn.

My take on reading the referenced file is that this patches a raw disk image. This would only work if the image is pristine (not been added to or changed in anyway). The first paragraph reads:
/*
* This program constructs binary patches for images -- such as boot.img
* and recovery.img -- that consist primarily of large chunks of gzipped
* data interspersed with uncompressed data. [...]
I don't see anyway to patch individual files in this way, and especially in an image such as the data partition that will be completely different on users' devices.

I took that from it as well. However if that was the case the update.zip would only have one patch file for the entire image and not a separate patch file for each apk / script / img / file that is being patched, which it does. It runs the applypatch command for each file being patched.

Gene Poole said:
I don't see anyway to patch individual files in this way, and especially in an image such as the data partition that will be completely different on users' devices.
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This method that they used in the update.zip could only update individual files because running this update only updated certain apps and no user data was lost. I realize that they could have just updated the image that /system is on. Could it be a possibility that they would break the image up on the phone patch only the files necessary then rebuild the image?

how to open data.img

I know this has been asked before but I am kind of stuck I need to access my old data.img as it became corrupt however I have tried unyaffs.exe but it crashes I want to find out what my other options are.
Thanks,
yonu

You could try this program....ext2explore

data.img is not a yaffs image, it's an ext image. You'll need a linux box to edit it reliably.

thanks ext2 worked great I thougt I was suppose to be using the other one.
dumb question I found the files I needed but I can't seem to find the proper location on the phone to put them back they can from the root data in the img files so where should i put them back?

I found it was looking in the wrong place
Edit I was wrong

Sorry to be a pain I fouond it I broke down and used droid explorer to upload the files

ok stupid question as I went to run the program I was putting the databases for and found out that when i deleted and copied the files back over in droidexplorer it really isn't deleting the files. Anyone know of a fix?
Thanks

[DEV] AndroidLib.dll Expansion Project

Description:
The AndroidLib Expansion Project was created to bring support of more Android devices to my AndroidLib.dll project I'm working on. This project is a Windows executable (compiled batch script) that you will run on your computer with your Android device connected. This will NOT run automatically; it will give you a prompt to run after opening.
The main purpose of this project is to collect data about new phones for AndroidLib.dll, not about your specific phone, but about how it transfers specific data through it's shell and through the Android Debug Bridge (ADB), and more importantly, how that output is formatted.
This information will not be shared with anyone other than myself, and will only be used for further developing AndroidLib.dll to support many more Android devices than it currently does.
Source Code is available under "Download Info"
What it does:
Starts an Adb server
Checks Device List
Checks Device Type
Checks Device Serial (only for unique .zip filename)
Checks For SU
Checks UID
Checks BusyBox
Checks File System
Checks Battery Statistics
Checks Running Processes
Checks /data/system/packages.xml for existance
Checks Build Properties
Checks Shell Environment
Creates Zip of Data Above
Opens Upload Form in Browser After Exiting
NOTE: Does NOT Upload Automatically
Usage:
Download the Windows Executable below and run from any directory on your computer with your Android device connected.
Requirements:
Windows Computer
Android device to test
Download Latest Release
AndroidLibExpansion.exe
Download Info
AndroidLibExpansion.exe MD5: 3a8971f452ab7e3da63e375a859033d4
VirusTotal Report
Source Code

No zip file on my desktop to send...

drcell said:
No zip file on my desktop to send...
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Check the Desktop folder in %USERPROFILE%\Desktop as well instead of just the graphical desktop. I have tested it working on 5 different computers here...

Can you upload to another site
Like http://www.mediafire.com/

TarekNajem04 said:
Can you upload to another site
Like http://www.mediafire.com/
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Click to collapse
Yeah, you can, if you send me the link to it.. but I just wrote that upload script so it would just go straight to my server.. Upload it to mediafire if you would like.

I realize now that this exe may not have worked correctly. I've had 3 reports now of no zip being created on the desktop. I am working to solve this issue, as you see in the source.. it really has no reason not to be creating on the desktop.

I'll be glad to help, if only it created a zip file for me to upload.
EDIT: I checked the %USERPROFILE%/Desktop as well as running a search for anything containing "androidlib" in C:\Users... nothing.

2 things.
1st, it won't make a zip file for anyone that doesn't have 7zip or the required folder structure (there is no standard environment variable of %myfiles% - just use %temp% instead), and it's assuming subfolders exist for output of the adb commands.
2nd, why is it an exe file when it's a batch file? Please link the bat file instead of an exe. I'm running the bat file I copied and pasted from the source and it runs just fine.

Archer said:
2 things.
1st, it won't make a zip file for anyone that doesn't have 7zip or the required folder structure (there is no standard environment variable of %myfiles% - just use %temp% instead), and it's assuming subfolders exist for output of the adb commands.
2nd, why is it an exe file when it's a batch file? Please link the bat file instead of an exe. I'm running the bat file I copied and pasted from the source and it runs just fine.
Click to expand...
Click to collapse
Well, if you knew who I was or looked at anything else I have written, you'd realize that I know what I'm doing, and that I would not assume everyone has the standard environment variable %MYFILES% or have 7zip installed. I am assuming in this program, actually, that the end user does NOT have the android sdk set up (or in their path) and does NOT have any 7 zip binaries. I created a self extracting exe out of my batch file that includes adb.exe, the 2 required adb dlls, and the 7 zip binary, all in the global variable %MYFILES% (aTemp folder in %temp%). It works fine. Just need to figure out why it creates a zip on all of my computers, and not any of yours. I appreciate the feedback though.

FredFS456 said:
I'll be glad to help, if only it created a zip file for me to upload.
EDIT: I checked the %USERPROFILE%/Desktop as well as running a search for anything containing "androidlib" in C:\Users... nothing.
Click to expand...
Click to collapse
Thanks for letting me know you ran a full search and nothing came up still, that actually does help me out, telling me it didn't write to anywhere else. I'll have a working version for you guys in a little bit.

Ok guys, fixed the problem. Works great now. Check the source code and VirusTotal report in the first post if you need to. Thanks again for everyone helping with this! And special thanks to nebenezer for testing the new builds!

regaw_leinad said:
Well, if you knew who I was or looked at anything else I have written, you'd realize that I know what I'm doing, and that I would not assume everyone has the standard environment variable %MYFILES% or have 7zip installed. I am assuming in this program, actually, that the end user does NOT have the android sdk set up (or in their path) and does NOT have any 7 zip binaries. I created a self extracting exe out of my batch file that includes adb.exe, the 2 required adb dlls, and the 7 zip binary, all in the global variable %MYFILES% (aTemp folder in %temp%). It works fine. Just need to figure out why it creates a zip on all of my computers, and not any of yours. I appreciate the feedback though.
Click to expand...
Click to collapse
Lol - calm down mate. I wasn't criticising - I was trying to help. I get why it's an exe now you've explained and that makes sense. Glad you got it working anyway. I'll upload a couple of files for you later.

Archer said:
Lol - calm down mate. I wasn't criticising - I was trying to help. I get why it's an exe now you've explained and that makes sense. Glad you got it working anyway. I'll upload a couple of files for you later.
Click to expand...
Click to collapse
Ok thanks for clarifying. The way you presented your self in your post sounded like somewhat of "this n00b doesn't know what he's doing, and I'm gonna let him know that" lol I'm a pretty chill guy, I just don't appreciate when people do that.
And thank you for doing some uploads later! I appreciate it!

This is my upload link because i couldn't upload with your page. It says "The file you are trying to upload is not a .zip file. Please try again."
http://db.tt/0HoRAK11

It works and I have uploaded the zip
Burned from my laser torch using pencil cells

Uploaded .zip file.

regaw_leinad said:
Ok thanks for clarifying. The way you presented your self in your post sounded like somewhat of "this n00b doesn't know what he's doing, and I'm gonna let him know that" lol I'm a pretty chill guy, I just don't appreciate when people do that.
And thank you for doing some uploads later! I appreciate it!
Click to expand...
Click to collapse
Apologies if that's how I came across - it wasn't intended. I've just uploaded a couple of zip files for you.

Thank you to everyone who has uploaded a zip so far! This is really helping development on AndroidLib. I am still accepting more uploads, so if you feel like helping develpment of AndroidLib, feel free to download and run the exe! I'm needing a few more Samsung devices in particular, those seem to vary in output between themselves.

Have you got an upload from an Motor ATRIX 4g yet? If not ill see if I can sort it for you.
Sent from my MB860 using XDA

The-Milkybar-Kid said:
Have you got an upload from an Motor ATRIX 4g yet? If not ill see if I can sort it for you.
Sent from my MB860 using XDA
Click to expand...
Click to collapse
Nope haven't got one yet, that'd be awesome! Thanks!

Does anyone have the NotoColorEmoji File from the OnePlus 5?

I flashed Ricky Bush's file to get the iOS emojis but when I unroot my phone any app which requires a keyboard cannot be used. I assume it is because unrooted phones cannot work with a keyboard with iOS smileys.
And is the File from Ricky Bush only changing the NotoColorEmoji file or is it doing even more? If so, how can I undo it without factory resetting?

I mean the stock font* if it is something else than NotoColorEmoji and I have the Oxygen-OS-Version 4.5.15 if there is a difference.

You mean you want the stock NotoColorEmoji.ttf file from OOS 4.5.15? If yes, it's attached with this post. If you want it as a flashable zip, let me know and I'll make one for you.

Thank you, ive also searched my phone everywhere for the so called "system -> fonts" folders, but couldnt find them, do you know where they are located on the oneplus5?

deano321 said:
Thank you, ive also searched my phone everywhere for the so called "system -> fonts" folders, but couldnt find them, do you know where they are located on the oneplus5?
Click to expand...
Click to collapse
You'd need root and a file manager to view the system folder and replace the modded file with the original file I attached.

ok thank you

How to edit the /sbin/.magisk/config file to do seamless OTA with Magisk

After rooting with Magisk, users of Moto G6 are faced with the “Stock Rom does not exist” error at the Restore Images step of Magisk’s OTA Upgrade Guide. However, the following suggestion was made in the discussion following issue #1870 on Magisk’s git-page:
The backups should be kept in /data (/data/stock_boot_<hash>.img.gz)
You could probably edit /sbin/.magisk/config to point to the backup you want by putting your <hash> after SHA1=
Click to expand...
Click to collapse
With Solid Explorer, I found different directories called /data in Root and in Internal Memory, but only the one in Root had a ./data/ subdirectory. Is that the one to which I should download the stock rom
ALI_RETAIL_9.0_PPSS29.118-15-11-9_cid50_subsidy-DEFAULT_regulatory-DEFAULT_CFC.xml.zip
which was posted in March, before the latest OTA release? Do I extract this zip, create an img.gz file from the .xml file and rename it stock_boot_<hash> before putting it there? Is <hash> blank-notation for any name that I give it, and which I then add after the “SHA1=” in /sbin/.magisk/config?
Finally, how do I edit the config file? I was able to get to it with Solid Explorer after checking the option to show hidden files in /sbin/. However, I couldn’t send this file to my computer by sharing it through email or messaging apps, as they all denied sending it. Apparently, it’s being blocked by anti-viruses. In this case, is there a safe way to transfer it to a computer, where I’ll be able to more comfortably edit it? Alternatively, if I just omit <hash> in naming stock_boot_.img.gz, can I leave config the way it is?
Best regards!