Problem in License validation using C++ SDK with a valid license in trusted store.
Hello community members,
I am using a combination of FNE and FNO for my application. The front-end of my code successfully activates a license using FNO and places it in the trusted store of users' PC. The front-end is also able to successfully validate the license when needed.
Now I want to include a second layer of protection. Lets say I have a C++ created dll running at the back-end, and I want to validate my license that was created by the front-end in the dll as well. I use view.c in the examples of the C++ SDK as a starting point, to observe if I can access the license in the trusted storage.
I can do it successfully, and I get the following output (I am putting only relevant part here):
INFO: ============================================== INFO: Features found in trusted storage:
So the good news is that I can see that there is one available license which is valid for acquisition. View.c uses FlcFeatureGetValidStatusForAcquisition() function to check the validity. However, the problem arises when I try to actually validate the license using FlcAcquireLicense(), because I get an error. Here is the code and the output when I append the following code snippet in view.c
Code snippet:
DisplayInfoString(_T("Trying to acquire license!"));
if (!FlcAcquireLicense(licensing, &license, "Feature_Name", "1.0", error)) { sDisplayErrorString(_T("acquiring the target"), error); (void)sCleanup(&licensing, &error); return -1; } sDisplayInfoString(_T("acquired target license"));
/*----------------------------------------------------------------------*/ /* return license */ /*----------------------------------------------------------------------*/ if (!FlcReturnLicense(licensing, &license, error)) { sDisplayErrorString(_T("returning the target"), error); (void)sCleanup(&licensing, &error); return -1; }
Addition of this code in view.c creates the following output.
