61 lines
1.8 KiB
Diff
61 lines
1.8 KiB
Diff
From cb57abb46f06f4ede8d9ccbdaac67377fdf416cf Mon Sep 17 00:00:00 2001
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From: Thomas Devoogdt <thomas@devoogdt.com>
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Date: Mon, 10 Apr 2023 19:58:15 +0200
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Subject: [PATCH] seedrng: fix for glibc <= 2.24 not providing random header
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- dropped the wrong define (not sure why it was there)
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- <sys/random.h> not available if glibc <= 2.24
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- GRND_NONBLOCK not defined if <sys/random.h> not included
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- ret < 0 && errno == ENOSYS has to be true to get creditable set
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Signed-off-by: Thomas Devoogdt <thomas@devoogdt.com>
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Upstream: https://git.busybox.net/busybox/commit/?id=cb57abb46f06f4ede8d9ccbdaac67377fdf416cf
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---
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miscutils/seedrng.c | 14 ++++++++++----
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1 file changed, 10 insertions(+), 4 deletions(-)
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diff --git a/miscutils/seedrng.c b/miscutils/seedrng.c
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index 7cc855141..3bf6e2ea7 100644
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--- a/miscutils/seedrng.c
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+++ b/miscutils/seedrng.c
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@@ -42,25 +42,31 @@
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#include "libbb.h"
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#include <linux/random.h>
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-#include <sys/random.h>
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#include <sys/file.h>
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/* Fix up glibc <= 2.24 not having getrandom() */
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#if defined(__GLIBC__) && __GLIBC__ == 2 && __GLIBC_MINOR__ <= 24
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#include <sys/syscall.h>
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-# define getrandom(...) bb_getrandom(__VA_ARGS__)
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static ssize_t getrandom(void *buffer, size_t length, unsigned flags)
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{
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# if defined(__NR_getrandom)
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return syscall(__NR_getrandom, buffer, length, flags);
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# else
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- return ENOSYS;
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+ errno = ENOSYS;
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+ return -1;
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# endif
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}
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+#else
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+#include <sys/random.h>
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+#endif
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+
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+/* Apparently some headers don't ship with this yet. */
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+#ifndef GRND_NONBLOCK
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+#define GRND_NONBLOCK 0x0001
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#endif
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#ifndef GRND_INSECURE
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-#define GRND_INSECURE 0x0004 /* Apparently some headers don't ship with this yet. */
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+#define GRND_INSECURE 0x0004
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#endif
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#define DEFAULT_SEED_DIR "/var/lib/seedrng"
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--
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2.39.1
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