mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-07-10 21:32:00 +00:00
0c88720caa
untested as all currently supported 14.1 devices are 32-bit Signed-off-by: Tavi <tavi@divested.dev>
518 lines
15 KiB
Diff
518 lines
15 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Elliott Hughes <enh@google.com>
|
|
Date: Wed, 27 Sep 2017 16:33:35 -0700
|
|
Subject: [PATCH] Add <sys/random.h>.
|
|
|
|
iOS 10 has <sys/random.h> with getentropy, glibc >= 2.25 has
|
|
<sys/random.h> with getentropy and getrandom. (glibc also pollutes
|
|
<unistd.h>, but that seems like a bad idea.)
|
|
|
|
Also, all supported devices now have kernels with the getrandom system
|
|
call.
|
|
|
|
We've had these available internally for a while, but it seems like the
|
|
time is ripe to expose them.
|
|
|
|
Bug: http://b/67014255
|
|
Test: ran tests
|
|
Change-Id: I76dde1e3a2d0bc82777eea437ac193f96964f138
|
|
---
|
|
libc/SYSCALLS.TXT | 3 +
|
|
libc/arch-arm/syscalls/getrandom.S | 16 +++
|
|
libc/arch-arm64/syscalls/getrandom.S | 14 ++
|
|
libc/arch-mips/syscalls/getrandom.S | 19 +++
|
|
libc/arch-mips64/syscalls/getrandom.S | 25 ++++
|
|
libc/arch-x86/syscalls/getrandom.S | 39 ++++++
|
|
libc/arch-x86_64/syscalls/getrandom.S | 15 +++
|
|
libc/include/sys/random.h | 47 +++++++
|
|
libc/libc.arm.map | 2 +
|
|
libc/libc.arm64.map | 2 +
|
|
libc/libc.map.txt | 2 +
|
|
libc/libc.mips.map | 2 +
|
|
libc/libc.mips64.map | 2 +
|
|
libc/libc.x86.map | 2 +
|
|
libc/libc.x86_64.map | 2 +
|
|
.../android/include/openbsd-compat.h | 8 +-
|
|
tests/sys_random_test.cpp | 120 ++++++++++++++++++
|
|
17 files changed, 317 insertions(+), 3 deletions(-)
|
|
create mode 100644 libc/arch-arm/syscalls/getrandom.S
|
|
create mode 100644 libc/arch-arm64/syscalls/getrandom.S
|
|
create mode 100644 libc/arch-mips/syscalls/getrandom.S
|
|
create mode 100644 libc/arch-mips64/syscalls/getrandom.S
|
|
create mode 100644 libc/arch-x86/syscalls/getrandom.S
|
|
create mode 100644 libc/arch-x86_64/syscalls/getrandom.S
|
|
create mode 100644 libc/include/sys/random.h
|
|
create mode 100644 tests/sys_random_test.cpp
|
|
|
|
diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
|
|
index d5dd2063e..536216dba 100644
|
|
--- a/libc/SYSCALLS.TXT
|
|
+++ b/libc/SYSCALLS.TXT
|
|
@@ -348,3 +348,6 @@ int clock_gettime(clockid_t, timespec*) arm,mips,mips64
|
|
int __clock_gettime:clock_gettime(clockid_t, timespec*) arm64,x86,x86_64
|
|
int gettimeofday(timeval*, timezone*) arm,mips,mips64
|
|
int __gettimeofday:gettimeofday(timeval*, timezone*) arm64,x86,x86_64
|
|
+
|
|
+# <sys/random.h>
|
|
+ssize_t getrandom(void*, size_t, unsigned) all
|
|
diff --git a/libc/arch-arm/syscalls/getrandom.S b/libc/arch-arm/syscalls/getrandom.S
|
|
new file mode 100644
|
|
index 000000000..3f28af6f0
|
|
--- /dev/null
|
|
+++ b/libc/arch-arm/syscalls/getrandom.S
|
|
@@ -0,0 +1,16 @@
|
|
+/* Generated by gensyscalls.py. Do not edit. */
|
|
+
|
|
+#include <private/bionic_asm.h>
|
|
+
|
|
+ENTRY(getrandom)
|
|
+ mov ip, r7
|
|
+ .cfi_register r7, ip
|
|
+ ldr r7, =__NR_getrandom
|
|
+ swi #0
|
|
+ mov r7, ip
|
|
+ .cfi_restore r7
|
|
+ cmn r0, #(MAX_ERRNO + 1)
|
|
+ bxls lr
|
|
+ neg r0, r0
|
|
+ b __set_errno_internal
|
|
+END(getrandom)
|
|
diff --git a/libc/arch-arm64/syscalls/getrandom.S b/libc/arch-arm64/syscalls/getrandom.S
|
|
new file mode 100644
|
|
index 000000000..c8fe41ffd
|
|
--- /dev/null
|
|
+++ b/libc/arch-arm64/syscalls/getrandom.S
|
|
@@ -0,0 +1,14 @@
|
|
+/* Generated by gensyscalls.py. Do not edit. */
|
|
+
|
|
+#include <private/bionic_asm.h>
|
|
+
|
|
+ENTRY(getrandom)
|
|
+ mov x8, __NR_getrandom
|
|
+ svc #0
|
|
+
|
|
+ cmn x0, #(MAX_ERRNO + 1)
|
|
+ cneg x0, x0, hi
|
|
+ b.hi __set_errno_internal
|
|
+
|
|
+ ret
|
|
+END(getrandom)
|
|
diff --git a/libc/arch-mips/syscalls/getrandom.S b/libc/arch-mips/syscalls/getrandom.S
|
|
new file mode 100644
|
|
index 000000000..7a2f3b978
|
|
--- /dev/null
|
|
+++ b/libc/arch-mips/syscalls/getrandom.S
|
|
@@ -0,0 +1,19 @@
|
|
+/* Generated by gensyscalls.py. Do not edit. */
|
|
+
|
|
+#include <private/bionic_asm.h>
|
|
+
|
|
+ENTRY(getrandom)
|
|
+ .set noreorder
|
|
+ .cpload t9
|
|
+ li v0, __NR_getrandom
|
|
+ syscall
|
|
+ bnez a3, 1f
|
|
+ move a0, v0
|
|
+ j ra
|
|
+ nop
|
|
+1:
|
|
+ la t9,__set_errno_internal
|
|
+ j t9
|
|
+ nop
|
|
+ .set reorder
|
|
+END(getrandom)
|
|
diff --git a/libc/arch-mips64/syscalls/getrandom.S b/libc/arch-mips64/syscalls/getrandom.S
|
|
new file mode 100644
|
|
index 000000000..3c5b4673f
|
|
--- /dev/null
|
|
+++ b/libc/arch-mips64/syscalls/getrandom.S
|
|
@@ -0,0 +1,25 @@
|
|
+/* Generated by gensyscalls.py. Do not edit. */
|
|
+
|
|
+#include <private/bionic_asm.h>
|
|
+
|
|
+ENTRY(getrandom)
|
|
+ .set push
|
|
+ .set noreorder
|
|
+ li v0, __NR_getrandom
|
|
+ syscall
|
|
+ bnez a3, 1f
|
|
+ move a0, v0
|
|
+ j ra
|
|
+ nop
|
|
+1:
|
|
+ move t0, ra
|
|
+ bal 2f
|
|
+ nop
|
|
+2:
|
|
+ .cpsetup ra, t1, 2b
|
|
+ LA t9,__set_errno_internal
|
|
+ .cpreturn
|
|
+ j t9
|
|
+ move ra, t0
|
|
+ .set pop
|
|
+END(getrandom)
|
|
diff --git a/libc/arch-x86/syscalls/getrandom.S b/libc/arch-x86/syscalls/getrandom.S
|
|
new file mode 100644
|
|
index 000000000..2e8ebc955
|
|
--- /dev/null
|
|
+++ b/libc/arch-x86/syscalls/getrandom.S
|
|
@@ -0,0 +1,39 @@
|
|
+/* Generated by gensyscalls.py. Do not edit. */
|
|
+
|
|
+#include <private/bionic_asm.h>
|
|
+
|
|
+ENTRY(getrandom)
|
|
+ pushl %ebx
|
|
+ .cfi_def_cfa_offset 8
|
|
+ .cfi_rel_offset ebx, 0
|
|
+ pushl %ecx
|
|
+ .cfi_adjust_cfa_offset 4
|
|
+ .cfi_rel_offset ecx, 0
|
|
+ pushl %edx
|
|
+ .cfi_adjust_cfa_offset 4
|
|
+ .cfi_rel_offset edx, 0
|
|
+
|
|
+ call __kernel_syscall
|
|
+ pushl %eax
|
|
+ .cfi_adjust_cfa_offset 4
|
|
+ .cfi_rel_offset eax, 0
|
|
+
|
|
+ mov 20(%esp), %ebx
|
|
+ mov 24(%esp), %ecx
|
|
+ mov 28(%esp), %edx
|
|
+ movl $__NR_getrandom, %eax
|
|
+ call *(%esp)
|
|
+ addl $4, %esp
|
|
+
|
|
+ cmpl $-MAX_ERRNO, %eax
|
|
+ jb 1f
|
|
+ negl %eax
|
|
+ pushl %eax
|
|
+ call __set_errno_internal
|
|
+ addl $4, %esp
|
|
+1:
|
|
+ popl %edx
|
|
+ popl %ecx
|
|
+ popl %ebx
|
|
+ ret
|
|
+END(getrandom)
|
|
diff --git a/libc/arch-x86_64/syscalls/getrandom.S b/libc/arch-x86_64/syscalls/getrandom.S
|
|
new file mode 100644
|
|
index 000000000..c5e44a966
|
|
--- /dev/null
|
|
+++ b/libc/arch-x86_64/syscalls/getrandom.S
|
|
@@ -0,0 +1,15 @@
|
|
+/* Generated by gensyscalls.py. Do not edit. */
|
|
+
|
|
+#include <private/bionic_asm.h>
|
|
+
|
|
+ENTRY(getrandom)
|
|
+ movl $__NR_getrandom, %eax
|
|
+ syscall
|
|
+ cmpq $-MAX_ERRNO, %rax
|
|
+ jb 1f
|
|
+ negl %eax
|
|
+ movl %eax, %edi
|
|
+ call __set_errno_internal
|
|
+1:
|
|
+ ret
|
|
+END(getrandom)
|
|
diff --git a/libc/include/sys/random.h b/libc/include/sys/random.h
|
|
new file mode 100644
|
|
index 000000000..34756520e
|
|
--- /dev/null
|
|
+++ b/libc/include/sys/random.h
|
|
@@ -0,0 +1,47 @@
|
|
+/*
|
|
+ * Copyright (C) 2017 The Android Open Source Project
|
|
+ * All rights reserved.
|
|
+ *
|
|
+ * Redistribution and use in source and binary forms, with or without
|
|
+ * modification, are permitted provided that the following conditions
|
|
+ * are met:
|
|
+ * * Redistributions of source code must retain the above copyright
|
|
+ * notice, this list of conditions and the following disclaimer.
|
|
+ * * Redistributions in binary form must reproduce the above copyright
|
|
+ * notice, this list of conditions and the following disclaimer in
|
|
+ * the documentation and/or other materials provided with the
|
|
+ * distribution.
|
|
+ *
|
|
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
+ * SUCH DAMAGE.
|
|
+ */
|
|
+
|
|
+#ifndef _SYS_RANDOM_H_
|
|
+#define _SYS_RANDOM_H_
|
|
+
|
|
+#include <sys/cdefs.h>
|
|
+#include <sys/types.h>
|
|
+
|
|
+#include <linux/random.h>
|
|
+
|
|
+__BEGIN_DECLS
|
|
+
|
|
+/* See also arc4random_buf in <stdlib.h>, which is available in all API levels. */
|
|
+
|
|
+int getentropy(void* __buffer, size_t __buffer_size) __wur __INTRODUCED_IN_FUTURE;
|
|
+
|
|
+ssize_t getrandom(void* __buffer, size_t __buffer_size, unsigned int __flags) __wur __INTRODUCED_IN_FUTURE;
|
|
+
|
|
+__END_DECLS
|
|
+
|
|
+#endif
|
|
diff --git a/libc/libc.arm.map b/libc/libc.arm.map
|
|
index 52698b6f0..f2b84f127 100644
|
|
--- a/libc/libc.arm.map
|
|
+++ b/libc/libc.arm.map
|
|
@@ -1483,6 +1483,8 @@ LIBC_PRIVATE {
|
|
vfdprintf; # arm x86 mips nobrillo
|
|
wait3; # arm x86 mips nobrillo
|
|
wcswcs; # arm x86 mips nobrillo
|
|
+ getentropy; # future
|
|
+ getrandom; # future
|
|
} LIBC_N;
|
|
|
|
LIBC_PLATFORM {
|
|
diff --git a/libc/libc.arm64.map b/libc/libc.arm64.map
|
|
index db7368ded..284527c08 100644
|
|
--- a/libc/libc.arm64.map
|
|
+++ b/libc/libc.arm64.map
|
|
@@ -1198,6 +1198,8 @@ LIBC_PRIVATE {
|
|
free_malloc_leak_info;
|
|
get_malloc_leak_info;
|
|
gMallocLeakZygoteChild;
|
|
+ getentropy; # future
|
|
+ getrandom; # future
|
|
} LIBC_N;
|
|
|
|
LIBC_PLATFORM {
|
|
diff --git a/libc/libc.map.txt b/libc/libc.map.txt
|
|
index 0e41f6ccb..18354e218 100644
|
|
--- a/libc/libc.map.txt
|
|
+++ b/libc/libc.map.txt
|
|
@@ -1509,6 +1509,8 @@ LIBC_PRIVATE {
|
|
vfdprintf; # arm x86 mips nobrillo
|
|
wait3; # arm x86 mips nobrillo
|
|
wcswcs; # arm x86 mips nobrillo
|
|
+ getentropy; # future
|
|
+ getrandom; # future
|
|
} LIBC_N;
|
|
|
|
LIBC_PLATFORM {
|
|
diff --git a/libc/libc.mips.map b/libc/libc.mips.map
|
|
index 2e272f5ca..2aba50685 100644
|
|
--- a/libc/libc.mips.map
|
|
+++ b/libc/libc.mips.map
|
|
@@ -1324,6 +1324,8 @@ LIBC_PRIVATE {
|
|
vfdprintf; # arm x86 mips nobrillo
|
|
wait3; # arm x86 mips nobrillo
|
|
wcswcs; # arm x86 mips nobrillo
|
|
+ getentropy; # future
|
|
+ getrandom; # future
|
|
} LIBC_N;
|
|
|
|
LIBC_PLATFORM {
|
|
diff --git a/libc/libc.mips64.map b/libc/libc.mips64.map
|
|
index db7368ded..284527c08 100644
|
|
--- a/libc/libc.mips64.map
|
|
+++ b/libc/libc.mips64.map
|
|
@@ -1198,6 +1198,8 @@ LIBC_PRIVATE {
|
|
free_malloc_leak_info;
|
|
get_malloc_leak_info;
|
|
gMallocLeakZygoteChild;
|
|
+ getentropy; # future
|
|
+ getrandom; # future
|
|
} LIBC_N;
|
|
|
|
LIBC_PLATFORM {
|
|
diff --git a/libc/libc.x86.map b/libc/libc.x86.map
|
|
index 6598e3d4b..c6282457e 100644
|
|
--- a/libc/libc.x86.map
|
|
+++ b/libc/libc.x86.map
|
|
@@ -1323,6 +1323,8 @@ LIBC_PRIVATE {
|
|
vfdprintf; # arm x86 mips nobrillo
|
|
wait3; # arm x86 mips nobrillo
|
|
wcswcs; # arm x86 mips nobrillo
|
|
+ getentropy; # future
|
|
+ getrandom; # future
|
|
} LIBC_N;
|
|
|
|
LIBC_PLATFORM {
|
|
diff --git a/libc/libc.x86_64.map b/libc/libc.x86_64.map
|
|
index db7368ded..284527c08 100644
|
|
--- a/libc/libc.x86_64.map
|
|
+++ b/libc/libc.x86_64.map
|
|
@@ -1198,6 +1198,8 @@ LIBC_PRIVATE {
|
|
free_malloc_leak_info;
|
|
get_malloc_leak_info;
|
|
gMallocLeakZygoteChild;
|
|
+ getentropy; # future
|
|
+ getrandom; # future
|
|
} LIBC_N;
|
|
|
|
LIBC_PLATFORM {
|
|
diff --git a/libc/upstream-openbsd/android/include/openbsd-compat.h b/libc/upstream-openbsd/android/include/openbsd-compat.h
|
|
index caea45a93..ed388144a 100644
|
|
--- a/libc/upstream-openbsd/android/include/openbsd-compat.h
|
|
+++ b/libc/upstream-openbsd/android/include/openbsd-compat.h
|
|
@@ -22,6 +22,11 @@
|
|
#include <sys/cdefs.h>
|
|
#include <stddef.h> // For size_t.
|
|
|
|
+// TODO: libandroid_support uses this file, so we need to wait for
|
|
+// <sys/random.h> to be in the NDK headers before we can lose this declaration.
|
|
+//#include <sys/random.h> // For getentropy.
|
|
+int getentropy(void*, size_t);
|
|
+
|
|
/* Redirect internal C library calls to the public function. */
|
|
#define _err err
|
|
#define _errx errx
|
|
@@ -65,9 +70,6 @@
|
|
*/
|
|
#define _PATH_TMP "/data/local/tmp/"
|
|
|
|
-/* We have OpenBSD's getentropy_linux.c, but we don't mention getentropy in any header. */
|
|
-__LIBC_HIDDEN__ extern int getentropy(void*, size_t);
|
|
-
|
|
/* OpenBSD has this as API, but we just use it internally. */
|
|
__LIBC_HIDDEN__ void* reallocarray(void*, size_t, size_t);
|
|
|
|
diff --git a/tests/sys_random_test.cpp b/tests/sys_random_test.cpp
|
|
new file mode 100644
|
|
index 000000000..a25490c67
|
|
--- /dev/null
|
|
+++ b/tests/sys_random_test.cpp
|
|
@@ -0,0 +1,120 @@
|
|
+/*
|
|
+ * Copyright (C) 2017 The Android Open Source Project
|
|
+ *
|
|
+ * Licensed under the Apache License, Version 2.0 (the "License");
|
|
+ * you may not use this file except in compliance with the License.
|
|
+ * You may obtain a copy of the License at
|
|
+ *
|
|
+ * http://www.apache.org/licenses/LICENSE-2.0
|
|
+ *
|
|
+ * Unless required by applicable law or agreed to in writing, software
|
|
+ * distributed under the License is distributed on an "AS IS" BASIS,
|
|
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
+ * See the License for the specific language governing permissions and
|
|
+ * limitations under the License.
|
|
+ */
|
|
+
|
|
+// <sys/random.h> was only added as of glibc version 2.25.
|
|
+// Don't try to compile this code on older glibc versions.
|
|
+
|
|
+#include <sys/cdefs.h>
|
|
+#if defined(__BIONIC__)
|
|
+ #define HAVE_SYS_RANDOM 1
|
|
+#elif defined(__GLIBC_PREREQ)
|
|
+ #if __GLIBC_PREREQ(2, 25)
|
|
+ #define HAVE_SYS_RANDOM 1
|
|
+ #endif
|
|
+#endif
|
|
+
|
|
+
|
|
+#if defined(HAVE_SYS_RANDOM)
|
|
+#include <sys/random.h>
|
|
+#endif
|
|
+
|
|
+#include <errno.h>
|
|
+#include <gtest/gtest.h>
|
|
+
|
|
+TEST(sys_random, getentropy) {
|
|
+#if defined(HAVE_SYS_RANDOM)
|
|
+ char buf1[64];
|
|
+ char buf2[64];
|
|
+
|
|
+ ASSERT_EQ(0, getentropy(buf1, sizeof(buf1)));
|
|
+ ASSERT_EQ(0, getentropy(buf2, sizeof(buf2)));
|
|
+ ASSERT_TRUE(memcmp(buf1, buf2, sizeof(buf1)) != 0);
|
|
+#else
|
|
+ GTEST_LOG_(INFO) << "This test requires a C library with <sys/random.h>.\n";
|
|
+#endif
|
|
+}
|
|
+
|
|
+TEST(sys_random, getentropy_EFAULT) {
|
|
+#if defined(HAVE_SYS_RANDOM)
|
|
+ errno = 0;
|
|
+ ASSERT_EQ(-1, getentropy(nullptr, 1));
|
|
+ ASSERT_EQ(EFAULT, errno);
|
|
+#else
|
|
+ GTEST_LOG_(INFO) << "This test requires a C library with <sys/random.h>.\n";
|
|
+#endif
|
|
+}
|
|
+
|
|
+TEST(sys_random, getentropy_EIO) {
|
|
+#if defined(HAVE_SYS_RANDOM)
|
|
+ char buf[BUFSIZ];
|
|
+ static_assert(BUFSIZ > 256, "BUFSIZ <= 256!");
|
|
+
|
|
+ errno = 0;
|
|
+ ASSERT_EQ(-1, getentropy(buf, sizeof(buf)));
|
|
+ ASSERT_EQ(EIO, errno);
|
|
+#else
|
|
+ GTEST_LOG_(INFO) << "This test requires a C library with <sys/random.h>.\n";
|
|
+#endif
|
|
+}
|
|
+
|
|
+TEST(sys_random, getrandom) {
|
|
+#if defined(HAVE_SYS_RANDOM)
|
|
+ if (getrandom(nullptr, 0, 0) == -1 && errno == ENOSYS) {
|
|
+ GTEST_LOG_(INFO) << "This test requires a >= 3.17 kernel with getrandom(2).\n";
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ char buf1[64];
|
|
+ char buf2[64];
|
|
+
|
|
+ ASSERT_EQ(64, getrandom(buf1, sizeof(buf1), 0));
|
|
+ ASSERT_EQ(64, getrandom(buf2, sizeof(buf2), 0));
|
|
+ ASSERT_TRUE(memcmp(buf1, buf2, sizeof(buf1)) != 0);
|
|
+#else
|
|
+ GTEST_LOG_(INFO) << "This test requires a C library with <sys/random.h>.\n";
|
|
+#endif
|
|
+}
|
|
+
|
|
+TEST(sys_random, getrandom_EFAULT) {
|
|
+#if defined(HAVE_SYS_RANDOM)
|
|
+ if (getrandom(nullptr, 0, 0) == -1 && errno == ENOSYS) {
|
|
+ GTEST_LOG_(INFO) << "This test requires a >= 3.17 kernel with getrandom(2).\n";
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ errno = 0;
|
|
+ ASSERT_EQ(-1, getrandom(nullptr, 256, 0));
|
|
+ ASSERT_EQ(EFAULT, errno);
|
|
+#else
|
|
+ GTEST_LOG_(INFO) << "This test requires a C library with <sys/random.h>.\n";
|
|
+#endif
|
|
+}
|
|
+
|
|
+TEST(sys_random, getrandom_EINVAL) {
|
|
+#if defined(HAVE_SYS_RANDOM)
|
|
+ if (getrandom(nullptr, 0, 0) == -1 && errno == ENOSYS) {
|
|
+ GTEST_LOG_(INFO) << "This test requires a >= 3.17 kernel with getrandom(2).\n";
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ errno = 0;
|
|
+ char buf[64];
|
|
+ ASSERT_EQ(-1, getrandom(buf, sizeof(buf), ~0));
|
|
+ ASSERT_EQ(EINVAL, errno);
|
|
+#else
|
|
+ GTEST_LOG_(INFO) << "This test requires a C library with <sys/random.h>.\n";
|
|
+#endif
|
|
+}
|