Execution from android

[rdluffy]

Hello,
I'm wondering how Termux is able to execute a binary that is in /data/local/tmp/xxx/app but when I'm trying to do it in a standard android application via (Runtime.getRuntime().exec(...)) it tells me "permission denied".
I have the same issue when the binary is in my directory (/data/data/packagename/files/app) and it is working for termux.

If someone can give me an insight ?

Thanks.

[agnostic-apollo]

Sorry, that's a top secret. We don't tell others.

But on a serious note, your app needs to use targetSdkVersion <= 28 to allow execution from app data directory, unless executable file is shipped inside apk file as native library, check android-10 branch or https://github.com/agnostic-apollo/TaskerAppFactory as sample. The /data/local/tmp directory is owned by adb shell user and you will only be allowed to execute if file has 777 permissions, app users normally can't read/write files in that directory. Make sure to restart device after lowering targetSdkVersion.

#2445 (comment)

#2155