FWink/android-stunnel-lib

runtime error

siromidz opened this issue · 3 comments

siromidz commented

i get Cannot run program libstunnel.so error=2, No such file or directory

have i missed any thing?

FWink commented

libstunnel.so is the native stunnel executable. The app is not able to find it at runtime

I'm guessing you had this error running on an emulator?
Currently there are only Android ARM binaries provided directly from https://www.stunnel.org/downloads.html. Thus it's currently not possible to use this on an x86 emulator or phone.
In Android Studio you can set up an emulator running on ARMEABI as well. The default is x86 because you'll get better perfomance running an x86 emulator on an x86 host. However, using ARMEABI you should be able to use this library.

I'll add a note about that to the readme now

sina-khosravi-0 commented

I examined the code and found out that StunnelBuilder.create() manually loads the .so file from ApplicationInfo.nativeLibraryDir instead of System.loadLibrary() so you have to set extractNativeLibs to true in AndroidManifest.xml, so libstunnel.so gets extracted to the nativeLibraryDir at the destination device.

AndroidManifest.xml:

<application
    .
    .
    android:extractNativeLibs="true"
    . 
    . >
FWink commented

System.loadLibrary would be for native libraries, but the libstunnel.so file is actually an executable.
Seems that whether extractNativeLibs is needed or not depends on your app's minSdkVersion (see https://developer.android.com/guide/topics/manifest/application-element#extractNativeLibs)
I added extractNativeLibs="true" to the library's manifest, so now you won't need to add it yourself to your app's manifest.