How can i settings IDA show me string instead of offset_xxx?
Go to the menu
Edit -> Plugins -> Hex-Rays Decompiler. A window will appear with information about the Hex-Rays plugin. Click
Options and you should see a dialog like this:
Analysis options and uncheck
Print only constant string literals:
I learned about this option from the great Life In Hex blog, but I cannot find the post right now...
Have you tried changing the prototype of the function licensed_to() so the 2nd argument is "const char *" and, also, have you made a string at the given offset? If not, go to the address in that offset and press 'a' (or Alt+A and then select "Unicode").