128e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// Copyright (C) 2016 The Android Open Source Project 228e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// 328e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// Licensed under the Apache License, Version 2.0 (the "License"); 428e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// you may not use this file except in compliance with the License. 528e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// You may obtain a copy of the License at 628e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// 728e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// http://www.apache.org/licenses/LICENSE-2.0 828e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// 928e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// Unless required by applicable law or agreed to in writing, software 1028e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// distributed under the License is distributed on an "AS IS" BASIS, 1128e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1228e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// See the License for the specific language governing permissions and 1328e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes// limitations under the License. 1428e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 1528e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes#include <unistd.h> 1628e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 1728e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes#include <map> 1828e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes#include <sstream> 1928e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes#include <string> 2028e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 2128e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes#include <android-base/file.h> 2228e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes#include <android-base/logging.h> 2328e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes#include <android-base/strings.h> 2428e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 2528e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obesvoid Usage(char* argv[]) { 2628e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes printf("Usage: %s <status field> <value> [<status field> <value>]*\n", argv[0]); 2728e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes printf("E.g.: $ %s Uid \"1000 1000 1000 1000\"\n", argv[0]); 2828e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes} 2928e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 3028e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obesint main(int argc, char* argv[]) { 3128e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes if (argc < 3) { 3228e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes Usage(argv); 3328e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes LOG(FATAL) << "no status field requested"; 3428e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 3528e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes if (argc % 2 == 0) { 3628e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes // Since |argc| counts argv[0], if |argc| is odd, then the number of 3728e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes // command-line arguments is even. 3828e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes Usage(argv); 3928e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes LOG(FATAL) << "need even number of command-line arguments"; 4028e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 4128e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 4228e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes std::string status; 4328e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes bool res = android::base::ReadFileToString("/proc/self/status", &status, true); 4428e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes if (!res) { 4528e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes PLOG(FATAL) << "could not read /proc/self/status"; 4628e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 4728e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 4828e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes std::map<std::string, std::string> fields; 4928e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes std::vector<std::string> lines = android::base::Split(status, "\n"); 5028e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes for (const auto& line : lines) { 5128e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes std::vector<std::string> tokens = android::base::Split(line, ":"); 5228e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes if (tokens.size() >= 2) { 5328e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes std::string field = tokens[0]; 5428e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes std::string value = android::base::Trim(tokens[1]); 5528e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes if (field.length() > 0) { 5628e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes fields[field] = value; 5728e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 5828e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 5928e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 6028e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 6128e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes bool test_fails = false; 6228e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes size_t uargc = static_cast<size_t>(argc); // |argc| >= 3. 6328e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes for (size_t i = 1; i < static_cast<size_t>(argc); i = i + 2) { 6428e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes std::string expected_value = argv[i + 1]; 6528e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes auto f = fields.find(argv[i]); 6628e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes if (f != fields.end()) { 6728e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes if (f->second != expected_value) { 6828e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes LOG(ERROR) << "field '" << argv[i] << "' expected '" << expected_value 6928e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes << "', actual '" << f->second << "'"; 7028e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes test_fails = true; 7128e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 7228e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } else { 7328e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes LOG(WARNING) << "could not find field '" << argv[i] << "'"; 7428e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 7528e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes } 7628e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes 7728e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes return test_fails ? 1 : 0; 7828e980b59c8e309d248b361829ed34408632720fJorge Lucangeli Obes} 79