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| author | James Hilliard <james.hilliard1@gmail.com> | 2017-07-27 15:34:09 +0300 |
|---|---|---|
| committer | James Hilliard <james.hilliard1@gmail.com> | 2017-07-27 15:34:09 +0300 |
| commit | ee2d10ad0c0e04d0b9da4535a6fff265ac2501e5 (patch) | |
| tree | 3818176646573cda7792fdf472408e345c7e33c3 /src/random.cpp | |
| parent | ba1bbb049b8f3ad295f36b060f775591b1fed8c1 (diff) | |
| download | bitcoin-ee2d10ad0c0e04d0b9da4535a6fff265ac2501e5.tar.xz | |
Check if sys/random.h is required for getentropy on OSX.
Diffstat (limited to 'src/random.cpp')
| -rw-r--r-- | src/random.cpp | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/src/random.cpp b/src/random.cpp index b308e8f4a1..e07ef44471 100644 --- a/src/random.cpp +++ b/src/random.cpp @@ -27,9 +27,12 @@ #include <sys/syscall.h> #include <linux/random.h> #endif -#ifdef HAVE_GETENTROPY +#if defined(HAVE_GETENTROPY) || (defined(HAVE_GETENTROPY_RAND) && defined(MAC_OSX)) #include <unistd.h> #endif +#if defined(HAVE_GETENTROPY_RAND) && defined(MAC_OSX) +#include <sys/random.h> +#endif #ifdef HAVE_SYSCTL_ARND #include <sys/sysctl.h> #endif @@ -237,6 +240,15 @@ void GetOSRand(unsigned char *ent32) if (getentropy(ent32, NUM_OS_RANDOM_BYTES) != 0) { RandFailure(); } +#elif defined(HAVE_GETENTROPY_RAND) && defined(MAC_OSX) + // We need a fallback for OSX < 10.12 + if (&getentropy != NULL) { + 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. |