/* Ugly structure handling macros */
#define OFFSETOF(s, i) ((unsigned int)&((s *)0)->i)
#define SKIP_BACK(s, i, p) ((s *)((char *)p - OFFSETOF(s, i)))
#define ALIGN(s, a) (((s)+a-1)&~(a-1))
/* Ugly structure handling macros */
#define OFFSETOF(s, i) ((unsigned int)&((s *)0)->i)
#define SKIP_BACK(s, i, p) ((s *)((char *)p - OFFSETOF(s, i)))
#define ALIGN(s, a) (((s)+a-1)&~(a-1))