| /* |
| * Copyright (C) 2019 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. |
| */ |
| |
| #include <unistd.h> |
| |
| #include <log/log.h> |
| #include <iostream> |
| |
| #include "VtsCoreUtil.h" |
| |
| namespace testing { |
| |
| // Runs "cmd" and attempts to find the specified feature in its |
| // output. |
| bool checkSubstringInCommandOutput(const char* cmd, const char* feature) { |
| bool hasFeature = false; |
| // This is one of the best stable native interface. Calling AIDL directly |
| // would be problematic if the binder interface changes. |
| FILE* p = popen(cmd, "re"); |
| if (p) { |
| char* line = NULL; |
| size_t len = 0; |
| __android_log_print(ANDROID_LOG_FATAL, LOG_TAG, |
| "checkSubstringInCommandOutput check with cmd: %s", |
| cmd); |
| while (getline(&line, &len, p) > 0) { |
| // TODO: b/148904287, check if we should match the whole line |
| if (strstr(line, feature)) { |
| hasFeature = true; |
| break; |
| } |
| } |
| pclose(p); |
| } else { |
| __android_log_print(ANDROID_LOG_FATAL, LOG_TAG, "popen failed: %d", errno); |
| _exit(EXIT_FAILURE); |
| } |
| __android_log_print(ANDROID_LOG_INFO, LOG_TAG, "Feature %s: %ssupported", |
| feature, hasFeature ? "" : "not "); |
| return hasFeature; |
| } |
| |
| // Runs "pm list features" and attempts to find the specified feature in its |
| // output. |
| bool deviceSupportsFeature(const char* feature) { |
| return checkSubstringInCommandOutput("/system/bin/pm list features", feature); |
| } |
| |
| } // namespace testing |