fix: decode base64-encoded file content

2026-05-27 12:20:59 -05:00
parent 5b48e316c6
commit 92ba4d8618
1 changed files with 128 additions and 76 deletions
@@ -1,76 +1,128 @@
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+/*
+ * Copyright 2009 Cedric Priscal
+ * 
+ * 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. 
+ */
+
+package android.serialport;
+
+import android.util.Log;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.LineNumberReader;
+import java.util.Iterator;
+import java.util.Vector;
+
+public class SerialPortFinder {
+
+    public class Driver {
+        public Driver(String name, String root) {
+            mDriverName = name;
+            mDeviceRoot = root;
+        }
+
+        private String mDriverName;
+        private String mDeviceRoot;
+        Vector<File> mDevices = null;
+
+        public Vector<File> getDevices() {
+            if (mDevices == null) {
+                mDevices = new Vector<File>();
+                File dev = new File("/dev");
+                
+                File[] files = dev.listFiles();
+
+                if (files != null) {
+                    int i;
+                    for (i = 0; i < files.length; i++) {
+                        if (files[i].getAbsolutePath().startsWith(mDeviceRoot)) {
+                            Log.d(TAG, "Found new device: " + files[i]);
+                            mDevices.add(files[i]);
+                        }
+                    }
+                }
+            }
+            return mDevices;
+        }
+
+        public String getName() {
+            return mDriverName;
+        }
+    }
+
+    private static final String TAG = "SerialPort";
+
+    private Vector<Driver> mDrivers = null;
+
+    Vector<Driver> getDrivers() throws IOException {
+        if (mDrivers == null) {
+            mDrivers = new Vector<Driver>();
+            LineNumberReader r = new LineNumberReader(new FileReader("/proc/tty/drivers"));
+            String l;
+            while ((l = r.readLine()) != null) {
+                // Issue 3:
+                // Since driver name may contain spaces, we do not extract driver name with split()
+                String drivername = l.substring(0, 0x15).trim();
+                String[] w = l.split(" +");
+                if ((w.length >= 5) && (w[w.length - 1].equals("serial"))) {
+                    Log.d(TAG, "Found new driver " + drivername + " on " + w[w.length - 4]);
+                    mDrivers.add(new Driver(drivername, w[w.length - 4]));
+                }
+            }
+            r.close();
+        }
+        return mDrivers;
+    }
+
+    public String[] getAllDevices() {
+        Vector<String> devices = new Vector<String>();
+        // Parse each driver
+        Iterator<Driver> itdriv;
+        try {
+            itdriv = getDrivers().iterator();
+            while (itdriv.hasNext()) {
+                Driver driver = itdriv.next();
+                Iterator<File> itdev = driver.getDevices().iterator();
+                while (itdev.hasNext()) {
+                    String device = itdev.next().getName();
+                    String value = String.format("%s (%s)", device, driver.getName());
+                    devices.add(value);
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return devices.toArray(new String[devices.size()]);
+    }
+
+    public String[] getAllDevicesPath() {
+        Vector<String> devices = new Vector<String>();
+        // Parse each driver
+        Iterator<Driver> itdriv;
+        try {
+            itdriv = getDrivers().iterator();
+            while (itdriv.hasNext()) {
+                Driver driver = itdriv.next();
+                Iterator<File> itdev = driver.getDevices().iterator();
+                while (itdev.hasNext()) {
+                    String device = itdev.next().getAbsolutePath();
+                    devices.add(device);
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return devices.toArray(new String[devices.size()]);
+    }
+}