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Merge 3d3d834324 into merged_master (Bitcoin PR #18359)

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Andrew Poelstra 2020-11-26 01:07:59 +00:00
commit 59abbbdd3a
2 changed files with 8 additions and 6 deletions
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10
configure.ac
View file

@ -960,11 +960,10 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <unistd.h>
AC_MSG_CHECKING(for sysctl)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/sysctl.h>]],
[[ static const int name[2] = {CTL_KERN, KERN_VERSION};
#ifdef __linux__
[[ #ifdef __linux__
#error "Don't use sysctl on Linux, it's deprecated even when it works"
#endif
sysctl(name, 2, nullptr, nullptr, nullptr, 0); ]])],
sysctl(nullptr, 2, nullptr, nullptr, nullptr, 0); ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSCTL, 1,[Define this symbol if the BSD sysctl() is available]) ],
[ AC_MSG_RESULT(no)]
)
@ -972,7 +971,10 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
AC_MSG_CHECKING(for sysctl KERN_ARND)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <sys/sysctl.h>]],
[[ static const int name[2] = {CTL_KERN, KERN_ARND};
[[ #ifdef __linux__
#error "Don't use sysctl on Linux, it's deprecated even when it works"
#endif
static int name[2] = {CTL_KERN, KERN_ARND};
sysctl(name, 2, nullptr, nullptr, nullptr, 0); ]])],
[ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSCTL_ARND, 1,[Define this symbol if the BSD sysctl(KERN_ARND) is available]) ],
[ AC_MSG_RESULT(no)]

4
src/random.cpp
View file

@ -321,10 +321,10 @@ void GetOSRand(unsigned char *ent32)
RandFailure();
}
#elif defined(HAVE_SYSCTL_ARND)
/* FreeBSD and similar. It is possible for the call to return less
/* FreeBSD, NetBSD and similar. It is possible for the call to return less
* bytes than requested, so need to read in a loop.
*/
static const int name[2] = {CTL_KERN, KERN_ARND};
static int name[2] = {CTL_KERN, KERN_ARND};
int have = 0;
do {
size_t len = NUM_OS_RANDOM_BYTES - have;