libcutils: move cutils/files.h to cutils/android_get_control_file.h
files.[h|cpp] is bound to be abused with junk, replace with
android_get_control_file.[h|cpp]. Plus some sundry cleanup.
Test: gTest libcutils-tests, logd-unit-tests, liblog-unit-tests,
logcat-unit-tests and init_tests
Bug: 32450474
Change-Id: Ibd4a7aa4624ea19a43d1f98a3c71ac37805d36b5
diff --git a/libcutils/tests/android_get_control_file_test.cpp b/libcutils/tests/android_get_control_file_test.cpp
new file mode 100644
index 0000000..6c6fd2a
--- /dev/null
+++ b/libcutils/tests/android_get_control_file_test.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2016 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 <ctype.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <time.h>
+
+#include <string>
+
+#include <android-base/stringprintf.h>
+#include <android-base/test_utils.h>
+#include <cutils/android_get_control_file.h>
+#include <gtest/gtest.h>
+
+TEST(FilesTest, android_get_control_file) {
+ TemporaryFile tf;
+ ASSERT_GE(tf.fd, 0);
+
+ std::string key(ANDROID_FILE_ENV_PREFIX);
+ key += tf.path;
+
+ std::for_each(key.begin(), key.end(), [] (char& c) { c = isalnum(c) ? c : '_'; });
+
+ EXPECT_EQ(unsetenv(key.c_str()), 0);
+ EXPECT_EQ(android_get_control_file(tf.path), -1);
+
+ EXPECT_EQ(setenv(key.c_str(), android::base::StringPrintf("%d", tf.fd).c_str(), true), 0);
+
+ EXPECT_EQ(android_get_control_file(tf.path), tf.fd);
+ close(tf.fd);
+ EXPECT_EQ(android_get_control_file(tf.path), -1);
+ EXPECT_EQ(unsetenv(key.c_str()), 0);
+ EXPECT_EQ(android_get_control_file(tf.path), -1);
+}