> These three constants are very much ingrained in the UNIX tradition,
> and it's no accident that the MAY_ flags correspond exactly to the
> i_mode bits, which is something often exploited by permission checking
> code.
Funny example of naming confusion:
> asmlinkage long sys_faccessat(int dfd, const char __user *filename, int mode)
> {
> ...
> if (mode & ~S_IRWXO) /* where's F_OK, X_OK, W_OK, R_OK? */
> return -EINVAL;
The MAY_* namespace is never mentioned, even though that's the one
most relevant here :)
Miklos
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