ObjFW  Diff

Differences From Artifact [975aa82042]:

• File src/macros.h — part of check-in [0c8a6fdf2a] at 2020-07-05 10:25:23 on branch trunk — Add forwardingTargetForSelector: for SPARC/ELF (user: js, size: 22023) [annotate] [blame] [check-ins using] [more...]

To Artifact [41e131467f]:

• File src/macros.h — part of check-in [c1fe4b2b77] at 2020-07-12 09:49:35 on branch trunk — Make of_random() a function

  When arc4random() is unavailable, either random() or rand() is used and
  both need to be seeded. If of_random() is a macro, it needs to be
  (re)seeded every time, as it's unknown whether it has already been
  seeded. As it is seeded with gettimeofday() due to the lack of a better
  initial seed, this means every call returns the first state for the
  current time, which is very predictable. random() and rand() are both
  not cryptographic, but this should at least make it a little bit better
  now. (user: js, size: 21483) [annotate] [blame] [check-ins using] [more...]

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}

static OF_INLINE char
of_ascii_tolower(char c)
{
	return (c >= 'A' && c <= 'Z' ? 'a' + (c - 'A') : c);
}

/* This does *NOT* provide cryptographically secure randomness! */
static OF_INLINE uint32_t
of_random(void) {
#if defined(OF_HAVE_ARC4RANDOM)
	return arc4random();
#elif defined(OF_HAVE_RANDOM)
	struct timeval tv;

	gettimeofday(&tv, NULL);
	srandom((unsigned)(tv.tv_sec ^ tv.tv_usec));
	return (((uint32_t)(random()) << 16) | ((uint32_t)(random()) & 0xFFFF));
#else
	struct timeval tv;

	gettimeofday(&tv, NULL);
	srand((unsigned)(tv.tv_sec ^ tv.tv_usec));
	return (((uint32_t)(rand()) << 16) | ((uint32_t)(rand()) & 0xFFFF));
#endif
}

#endif

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}

static OF_INLINE char
of_ascii_tolower(char c)
{
	return (c >= 'A' && c <= 'Z' ? 'a' + (c - 'A') : c);
}


















#endif