validation/ioc-typecheck.c

   1 extern unsigned int __invalid_size_argument_for_IOC;
   2 #define _IOC_TYPECHECK(t) \
   3                 ((sizeof(t) == sizeof(t[1]) && \
   4                     sizeof(t) < (1 << 14)) ? \
   5                    sizeof(t) : __invalid_size_argument_for_IOC)
   6
   7 #define TEST_IOCTL (50 | (_IOC_TYPECHECK(unsigned) << 8))
   8
   9 static unsigned iocnrs[] = {
  10         [TEST_IOCTL & 0xff] = 1,
  11 };
  12 /*
  13  * check-name: correct handling of _IOC_TYPECHECK
  14  *
  15  * check-error-start
  16  * check-error-end
  17  */