validation/byte-count-max.c

   1 typedef unsigned long int size_t;
   2 typedef unsigned long ulong;
   3
   4 extern void *memset(void *s, int c, size_t n);
   5 extern void *memcpy(void *dest, void *src, size_t n);
   6 extern ulong copy_to_user(void *to, const void *from, ulong count);
   7 extern ulong copy_from_user(void *to, const void *from, ulong count);
   8
   9 static void func (char *s)
  10 {
  11         char d[250000];
  12
  13         memset(d, 0, 250000);
  14         memcpy(d, s, 250000);
  15         copy_to_user(s, d, 250000);
  16         copy_from_user(d, s, 250000);
  17 }
  18
  19 /*
  20  * check-name: byte-count-max
  21  *
  22  * check-error-start
  23 byte-count-max.c:13:15: warning: memset with byte count of 250000
  24 byte-count-max.c:14:15: warning: memcpy with byte count of 250000
  25 byte-count-max.c:15:21: warning: copy_to_user with byte count of 250000
  26 byte-count-max.c:16:23: warning: copy_from_user with byte count of 250000
  27  * check-error-end
  28  */