| 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 |
| |
