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rand: remove getentropy() fallback for macOS < 10.12

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This commit is contained in:
fanquake
2020-03-17 13:00:31 +08:00
parent 7060d2d97a
commit a889711562
1 changed files with 4 additions and 7 deletions
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7
src/random.cpp
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@@ -315,14 +315,11 @@ void GetOSRand(unsigned char *ent32)
RandFailure();
}
#elif defined(HAVE_GETENTROPY_RAND) && defined(MAC_OSX)
// We need a fallback for OSX < 10.12
if (&getentropy != nullptr) {
/* getentropy() is available on macOS 10.12 and later.
*/
if (getentropy(ent32, NUM_OS_RANDOM_BYTES) != 0) {
RandFailure();
}
} else {
GetDevURandom(ent32);
}
#elif defined(HAVE_SYSCTL_ARND)
/* FreeBSD and similar. It is possible for the call to return less
* bytes than requested, so need to read in a loop.