52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
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// Copyright 2018 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <sys/klog.h>
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#include <sys/syscall.h>
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#include <unistd.h>
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#include "gtest/gtest.h"
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#include "test/util/test_util.h"
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namespace gvisor {
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namespace testing {
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namespace {
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constexpr int SYSLOG_ACTION_READ_ALL = 3;
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constexpr int SYSLOG_ACTION_SIZE_BUFFER = 10;
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int Syslog(int type, char* buf, int len) {
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return syscall(__NR_syslog, type, buf, len);
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}
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// Only SYSLOG_ACTION_SIZE_BUFFER and SYSLOG_ACTION_READ_ALL are implemented in
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// gVisor.
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TEST(Syslog, Size) {
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EXPECT_THAT(Syslog(SYSLOG_ACTION_SIZE_BUFFER, nullptr, 0), SyscallSucceeds());
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}
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TEST(Syslog, ReadAll) {
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// There might not be anything to read, so we can't check the write count.
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char buf[100];
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EXPECT_THAT(Syslog(SYSLOG_ACTION_READ_ALL, buf, sizeof(buf)),
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SyscallSucceeds());
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}
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} // namespace
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} // namespace testing
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} // namespace gvisor
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