78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
// Copyright (C) 2016 The Android Open Source Project
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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 <unistd.h>
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#include <map>
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#include <sstream>
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#include <string>
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <android-base/strings.h>
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void Usage(char* argv[]) {
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printf("Usage: %s <status field> <value> [<status field> <value>]*\n", argv[0]);
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printf("E.g.: $ %s Uid \"1000 1000 1000 1000\"\n", argv[0]);
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}
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int main(int argc, char* argv[]) {
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if (argc < 3) {
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Usage(argv);
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LOG(FATAL) << "no status field requested";
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}
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if (argc % 2 == 0) {
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// Since |argc| counts argv[0], if |argc| is odd, then the number of
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// command-line arguments is even.
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Usage(argv);
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LOG(FATAL) << "need even number of command-line arguments";
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}
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std::string status;
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bool res = android::base::ReadFileToString("/proc/self/status", &status, true);
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if (!res) {
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PLOG(FATAL) << "could not read /proc/self/status";
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}
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std::map<std::string, std::string> fields;
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std::vector<std::string> lines = android::base::Split(status, "\n");
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for (const auto& line : lines) {
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std::vector<std::string> tokens = android::base::Split(line, ":");
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if (tokens.size() >= 2) {
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std::string field = tokens[0];
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std::string value = android::base::Trim(tokens[1]);
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if (field.length() > 0) {
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fields[field] = value;
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}
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}
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}
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bool test_fails = false;
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for (size_t i = 1; i < static_cast<size_t>(argc); i = i + 2) {
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std::string expected_value = argv[i + 1];
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auto f = fields.find(argv[i]);
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if (f != fields.end()) {
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if (f->second != expected_value) {
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LOG(ERROR) << "field '" << argv[i] << "' expected '" << expected_value
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<< "', actual '" << f->second << "'";
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test_fails = true;
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}
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} else {
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LOG(WARNING) << "could not find field '" << argv[i] << "'";
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}
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}
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return test_fails ? 1 : 0;
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}
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