termux-login is simple utility to check correct login and password of user for Termux( https://github.com/termux ) on non-rooted devices.
With this utility you could not add users to android sytem and set permissions for files and folders!
Compilation&Installation:
$ bash install.sh
I've written here before about that termux-login has critical bug.Actually there wasn't any bug.It was just kodo-pp's joke