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- From 200a9669fbf6f06894e4243cccc9fc11a1a6073a Mon Sep 17 00:00:00 2001
- From: Denys Vlasenko <vda.linux@googlemail.com>
- Date: Mon, 10 Apr 2023 17:26:04 +0200
- Subject: [PATCH] seedrng: fix for glibc <= 2.24 not providing getrandom()
- Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
- Upstream: https://git.busybox.net/busybox/commit/?id=200a9669fbf6f06894e4243cccc9fc11a1a6073a
- ---
- miscutils/seedrng.c | 14 ++++++++++++++
- 1 file changed, 14 insertions(+)
- diff --git a/miscutils/seedrng.c b/miscutils/seedrng.c
- index 967741dc7..7cc855141 100644
- --- a/miscutils/seedrng.c
- +++ b/miscutils/seedrng.c
- @@ -45,6 +45,20 @@
- #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;
- +# endif
- +}
- +#endif
- +
- #ifndef GRND_INSECURE
- #define GRND_INSECURE 0x0004 /* Apparently some headers don't ship with this yet. */
- #endif
- --
- 2.39.1
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