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Remove CHECK_IOCTL, CHECK_FCNTL and CHECK_N_PAGES.

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This commit is contained in:
Joseph Myers 2013-01-31 23:01:01 +00:00
parent 32a45bea39
commit f3499f95c8
2 changed files with 6 additions and 27 deletions
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6
ChangeLog
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@ -1,5 +1,11 @@
2013-01-31 Joseph Myers <joseph@codesourcery.com>
[BZ #13550]
* sysdeps/generic/bp-checks.h (CHECK_IOCTL): Remove both
definitions.
(CHECK_FCNTL): Likewise.
(CHECK_N_PAGES): Likewise.
[BZ #13550]
* sysdeps/generic/bp-checks.h (CHECK_SIGSET): Remove both
definitions.

27
sysdeps/generic/bp-checks.h
View File

@ -66,30 +66,6 @@ extern void *__unbounded __ubp_memchr (const void *__unbounded, int, unsigned);
/* Same as CHECK_STRING, but tolerate ARG == NULL. */
# define CHECK_STRING_NULL_OK(ARG) _CHECK_STRING ((ARG), __ptrvalue (ARG))
# if defined (_IOC_SIZESHIFT) && defined (_IOC_SIZEBITS)
/* Extract the size of the ioctl data and check its bounds. */
# define CHECK_IOCTL(ARG, CMD) \
CHECK_N ((const char *) (ARG), \
(((CMD) >> _IOC_SIZESHIFT) & ((1 << _IOC_SIZEBITS) - 1)))
# else
/* We don't know the size of the ioctl data, so the best we can do
is check that the first byte is within bounds. */
# define CHECK_IOCTL(ARG, CMD) CHECK_1 ((const char *) ARG)
# endif
/* Check bounds of `struct flock *' for the locking fcntl commands. */
# define CHECK_FCNTL(ARG, CMD) \
(((CMD) == F_GETLK || (CMD) == F_SETLK || (CMD) == F_SETLKW) \
? CHECK_1 ((struct flock *) ARG) : (unsigned long) (ARG))
/* Check bounds of an array of mincore residency-status flags that
cover a region of NBYTES. Such a vector occupies one byte per page
of memory. */
# define CHECK_N_PAGES(ARG, NBYTES) \
({ int _page_size_ = sysconf (_SC_PAGE_SIZE); \
CHECK_N ((const char *) (ARG), \
((NBYTES) + _page_size_ - 1) / _page_size_); })
/* Return a bounded pointer with value PTR that satisfies CHECK_N (PTR, N). */
# define BOUNDED_N(PTR, N) \
({ __typeof (PTR) __bounded _p_; \
@ -109,9 +85,6 @@ extern void *__unbounded __ubp_memchr (const void *__unbounded, int, unsigned);
# define CHECK_N(ARG, N) (ARG)
# define CHECK_N_NULL_OK(ARG, N) (ARG)
# define CHECK_STRING(ARG) (ARG)
# define CHECK_IOCTL(ARG, CMD) (ARG)
# define CHECK_FCNTL(ARG, CMD) (ARG)
# define CHECK_N_PAGES(ARG, NBYTES) (ARG)
# define BOUNDED_N(PTR, N) (PTR)
#endif /* !__BOUNDED_POINTERS__ */