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-rw-r--r--miscutils/seedrng.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/miscutils/seedrng.c b/miscutils/seedrng.c
index 7cc855141..3bf6e2ea7 100644
--- a/miscutils/seedrng.c
+++ b/miscutils/seedrng.c
@@ -42,25 +42,31 @@
#include "libbb.h"
#include <linux/random.h>
-#include <sys/random.h>
#include <sys/file.h>
/* Fix up glibc <= 2.24 not having getrandom() */
#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 24
#include <sys/syscall.h>
-# define getrandom(...) bb_getrandom(__VA_ARGS__)
static ssize_t getrandom(void *buffer, size_t length, unsigned flags)
{
# if defined(__NR_getrandom)
return syscall(__NR_getrandom, buffer, length, flags);
# else
- return ENOSYS;
+ errno = ENOSYS;
+ return -1;
# endif
}
+#else
+#include <sys/random.h>
+#endif
+
+/* Apparently some headers don't ship with this yet. */
+#ifndef GRND_NONBLOCK
+#define GRND_NONBLOCK 0x0001
#endif
#ifndef GRND_INSECURE
-#define GRND_INSECURE 0x0004 /* Apparently some headers don't ship with this yet. */
+#define GRND_INSECURE 0x0004
#endif
#define DEFAULT_SEED_DIR "/var/lib/seedrng"