From 8c64ad00a366095ac3d575f3605cb6e4659d6b81 Mon Sep 17 00:00:00 2001
From: "C. McEnroe" <june@causal.agency>
Date: Tue, 24 Nov 2020 17:48:21 -0500
Subject: Import LibreSSL 3.3.0

---
 compat/getentropy_freebsd.c |  6 ++----
 compat/getentropy_netbsd.c  |  6 ++----
 compat/getentropy_win.c     | 27 +++++++++------------------
 3 files changed, 13 insertions(+), 26 deletions(-)

(limited to 'compat')

diff --git a/compat/getentropy_freebsd.c b/compat/getentropy_freebsd.c
index 30cd68e..ea90ffe 100644
--- a/compat/getentropy_freebsd.c
+++ b/compat/getentropy_freebsd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: getentropy_freebsd.c,v 1.3 2016/08/07 03:27:21 tb Exp $	*/
+/*	$OpenBSD: getentropy_freebsd.c,v 1.4 2020/10/12 22:08:33 deraadt Exp $	*/
 
 /*
  * Copyright (c) 2014 Pawel Jakub Dawidek <pjd@FreeBSD.org>
@@ -32,11 +32,9 @@
 static size_t
 getentropy_sysctl(u_char *buf, size_t size)
 {
-	int mib[2];
+	const int mib[2] = { CTL_KERN, KERN_ARND };
 	size_t len, done;
 
-	mib[0] = CTL_KERN;
-	mib[1] = KERN_ARND;
 	done = 0;
 
 	do {
diff --git a/compat/getentropy_netbsd.c b/compat/getentropy_netbsd.c
index 45d68c9..5dc8959 100644
--- a/compat/getentropy_netbsd.c
+++ b/compat/getentropy_netbsd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: getentropy_netbsd.c,v 1.3 2016/08/07 03:27:21 tb Exp $	*/
+/*	$OpenBSD: getentropy_netbsd.c,v 1.4 2020/10/12 22:08:33 deraadt Exp $	*/
 
 /*
  * Copyright (c) 2014 Pawel Jakub Dawidek <pjd@FreeBSD.org>
@@ -32,11 +32,9 @@
 static size_t
 getentropy_sysctl(u_char *buf, size_t size)
 {
-	int mib[2];
+	const int mib[2] = { CTL_KERN, KERN_ARND };
 	size_t len, done;
 
-	mib[0] = CTL_KERN;
-	mib[1] = KERN_ARND;
 	done = 0;
 
 	do {
diff --git a/compat/getentropy_win.c b/compat/getentropy_win.c
index 2abeb27..64514b3 100644
--- a/compat/getentropy_win.c
+++ b/compat/getentropy_win.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: getentropy_win.c,v 1.5 2016/08/07 03:27:21 tb Exp $	*/
+/*	$OpenBSD: getentropy_win.c,v 1.6 2020/11/11 10:41:24 bcook Exp $	*/
 
 /*
  * Copyright (c) 2014, Theo de Raadt <deraadt@openbsd.org> 
@@ -21,39 +21,30 @@
  */
 
 #include <windows.h>
+#include <bcrypt.h>
 #include <errno.h>
 #include <stdint.h>
 #include <sys/types.h>
-#include <wincrypt.h>
-#include <process.h>
 
 int	getentropy(void *buf, size_t len);
 
 /*
- * On Windows, CryptGenRandom is supposed to be a well-seeded
- * cryptographically strong random number generator.
+ * On Windows, BCryptGenRandom with BCRYPT_USE_SYSTEM_PREFERRED_RNG is supposed
+ * to be a well-seeded, cryptographically strong random number generator.
+ * https://docs.microsoft.com/en-us/windows/win32/api/bcrypt/nf-bcrypt-bcryptgenrandom
  */
 int
 getentropy(void *buf, size_t len)
 {
-	HCRYPTPROV provider;
-
 	if (len > 256) {
 		errno = EIO;
 		return (-1);
 	}
 
-	if (CryptAcquireContext(&provider, NULL, NULL, PROV_RSA_FULL,
-	    CRYPT_VERIFYCONTEXT) == 0)
-		goto fail;
-	if (CryptGenRandom(provider, len, buf) == 0) {
-		CryptReleaseContext(provider, 0);
-		goto fail;
+	if (FAILED(BCryptGenRandom(NULL, buf, len, BCRYPT_USE_SYSTEM_PREFERRED_RNG))) {
+		errno = EIO;
+		return (-1);
 	}
-	CryptReleaseContext(provider, 0);
-	return (0);
 
-fail:
-	errno = EIO;
-	return (-1);
+	return (0);
 }
-- 
cgit 1.4.1