More javafication

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2018-04-18 05:28:31 +02:00
parent 69f1a35a3f
commit 53d29b312f
9 changed files with 343 additions and 197 deletions
@@ -0,0 +1,79 @@
+package com.wireguard.config;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
+public class IPCidr implements Parcelable {
+    InetAddress address;
+    int cidr;
+
+
+    public static final Parcelable.Creator<IPCidr> CREATOR = new Parcelable.Creator<IPCidr>() {
+        @Override
+        public IPCidr createFromParcel(final Parcel in) {
+            return new IPCidr(in);
+        }
+
+        @Override
+        public IPCidr[] newArray(final int size) {
+            return new IPCidr[size];
+        }
+    };
+
+    public IPCidr(String in) throws UnknownHostException {
+        parse(in);
+    }
+
+    private void parse(String in) throws UnknownHostException {
+        cidr = -1;
+        int slash = in.lastIndexOf('/');
+        if (slash != -1 && slash < in.length() - 1) {
+            try {
+                cidr = Integer.parseInt(in.substring(slash + 1), 10);
+                in = in.substring(0, slash);
+            } catch (Exception e) {
+            }
+        }
+        address = InetAddress.getByName(in);
+        if ((address instanceof Inet6Address) && (cidr > 128 || cidr < 0))
+            cidr = 128;
+        else if ((address instanceof Inet4Address) && (cidr > 32 || cidr < 0))
+            cidr = 32;
+    }
+
+    public InetAddress getAddress() {
+        return address;
+    }
+
+    public int getCidr() {
+        return cidr;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("%s/%d", address.getHostAddress(), cidr);
+    }
+
+    @Override
+    public void writeToParcel(final Parcel dest, final int flags) {
+        dest.writeString(this.toString());
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    private IPCidr(final Parcel in) {
+        try {
+            parse(in.readString());
+        } catch (Exception e) {
+        }
+    }
+
+}