upload android base code part3

android/bootable/recovery/otafault/test.cpp

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+/*
+ * Copyright (C) 2015 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 <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "ota_io.h"
+
+int main(int /* argc */, char** /* argv */) {
+    int fd = open("testdata/test.file", O_RDWR);
+    char buf[8];
+    const char* out = "321";
+    int readv = ota_read(fd, buf, 4);
+    printf("Read returned %d\n", readv);
+    int writev = ota_write(fd, out, 4);
+    printf("Write returned %d\n", writev);
+    close(fd);
+    return 0;
+}