#include <syslog.h>
#include <stdarg.h>
#ifdef FreeBSD
  #include <security/pam_appl.h>
  #define PAM_SM_AUTH
  #include <security/pam_modules.h>
#else
  #include <pam/pam_appl.h>
  #define PAM_SM_AUTH
  #include <pam/pam_modules.h>
#endif

#ifdef DEBUG
# define D(a) a;
#else
# define D(a) {}
#endif

/* logging function ripped from pam_listfile.c */
void _pam_log(int, const char *, ...);