#include <assert.h>
#include <unistd.h>
int main() {
char buf[256] = {0};
int r = getentropy(buf, 256);
assert(r == 0);
for (int i = 0; i < 256; i++) {
if (buf[i] != 0) {
return 0;
}
}
// if this ever is reached, we either have a bug or should buy a lottery
// ticket
return 1;
}