106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
|
/*
|
||
|
|
* 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)
|
||
|
|
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)
|
||
|
|
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)
|
||
|
|
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
|
||
|
|
}
|