#ifndef _PAM_H
 #define _PAM_H
 #include <memory>

 #include <vector>

 #include <security/pam_modules.h>
 

 class pam_ifc

 {
 public:

     virtual int get_conv (pam_handle *handle, const pam_conv **out)
     {
         return PAM_SERVICE_ERR;
     }

 };
 

 class pam : public pam_ifc

 {

     typedef std::shared_ptr<pam_ifc> delegate;
 private:
     delegate delegate_;

 public:

     pam (const delegate &delegate) : delegate_ (delegate) {}
     pam() : pam (delegate (new pam_ifc)) {}

     int get_conv (pam_handle *handle, const pam_conv **out)

     {

         return delegate_->get_conv (handle, out);

     }

 };
 

 pam system_pam();

 
 #endif