java - Listing all devices on a network - Android -
i trying display devices fro network according tutorial: http://android-er.blogspot.ro/2015/12/lookup-manufacturer-info-by-mac-address.html no reason router ip , mac ... (weird part).. when scan fing (other android app) , after scan app results..
my code scanwifi.jar:
package com.nliplace.nli.unealta; import android.os.asynctask; import android.os.bundle; import android.support.v7.app.appcompatactivity; import android.view.view; import android.widget.adapterview; import android.widget.arrayadapter; import android.widget.button; import android.widget.listview; import android.widget.textview; import android.widget.toast; import org.json.jsonarray; import org.json.jsonexception; import org.json.jsonobject; import java.io.bufferedreader; import java.io.filenotfoundexception; import java.io.filereader; import java.io.ioexception; import java.io.inputstreamreader; import java.net.httpurlconnection; import java.net.url; import java.util.arraylist; public class scanwifi extends appcompatactivity { button btnread; textview textresult; listview listviewnode; arraylist<node> listnote; arrayadapter<node> adapter; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_scanwifi); btnread = (button)findviewbyid(r.id.readclient); textresult = (textview)findviewbyid(r.id.result); listviewnode = (listview)findviewbyid(r.id.nodelist); listnote = new arraylist<>(); arrayadapter<node> adapter = new arrayadapter<node>( scanwifi.this, android.r.layout.simple_list_item_1, listnote); listviewnode.setadapter(adapter); listviewnode.setonitemclicklistener(new adapterview.onitemclicklistener() { @override public void onitemclick(adapterview<?> parent, view view, int position, long id) { node node = (node) parent.getadapter().getitem(position); toast.maketext(scanwifi.this, "mac:\t" + node.mac + "\n" + "ip:\t" + node.ip + "\n" + "company:\t" + node.company + "\n" + "country:\t" + node.country + "\n" + "addressl1:\t" + node.addressl1 + "\n" + "addressl2:\t" + node.addressl2 + "\n" + "addressl3:\t" + node.addressl3 + "\n" + "type:\t" + node.type + "\n" + "starthex:\t" + node.starthex + "\n" + "endhex:\t" + node.endhex + "\n" + "startdec:\t" + node.startdec + "\n" + "enddec:\t" + node.enddec, toast.length_short).show(); } }); btnread.setonclicklistener(new view.onclicklistener() { @override public void onclick(view v) { new taskreadaddresses(listnote, listviewnode).execute(); } }); } class node { string ip; string mac; string jsonbody; string starthex; string endhex; string startdec; string enddec; string company; string addressl1; string addressl2; string addressl3; string country; string type; string remark; string querystring = "http://www.macvendorlookup.com/api/v2/"; node(string ip, string mac){ this.ip = ip; this.mac = mac; querymacvendorlookup(); } @override public string tostring() { return "ip: " + ip + "\n" + "mac: " + mac + "\n" + company + "\n" + remark; } private string sendquery(string qmac) throws ioexception{ string result = ""; url searchurl = new url(querystring + qmac); httpurlconnection httpurlconnection = (httpurlconnection) searchurl.openconnection(); if(httpurlconnection.getresponsecode() == httpurlconnection.http_ok){ inputstreamreader inputstreamreader = new inputstreamreader(httpurlconnection.getinputstream()); bufferedreader bufferedreader = new bufferedreader( inputstreamreader, 8192); string line = null; while((line = bufferedreader.readline()) != null){ result += line; } bufferedreader.close(); } return result; } private void parseresult(string json){ try { jsonarray jsonarray = new jsonarray(json); jsonobject jsonobject = (jsonobject) jsonarray.get(0); starthex = jsonobject.getstring("starthex"); endhex = jsonobject.getstring("endhex"); startdec = jsonobject.getstring("startdec"); enddec = jsonobject.getstring("enddec"); company = jsonobject.getstring("company"); addressl1 = jsonobject.getstring("addressl1"); addressl2 = jsonobject.getstring("addressl2"); addressl3 = jsonobject.getstring("addressl3"); country = jsonobject.getstring("country"); type = jsonobject.getstring("type"); remark = "ok"; } catch (jsonexception e) { e.printstacktrace(); remark = e.getmessage(); } } private void querymacvendorlookup(){ try { jsonbody = sendquery(mac); parseresult(jsonbody); } catch (ioexception e) { e.printstacktrace(); } } } private class taskreadaddresses extends asynctask<void, node, void> { arraylist<node> array; listview listview; taskreadaddresses(arraylist<node> array, listview v){ listview = v; this.array = array; array.clear(); textresult.settext("querying..."); } @override protected void doinbackground(void... params) { readaddresses(); return null; } @override protected void onpostexecute(void avoid) { textresult.settext("done"); } @override protected void onprogressupdate(node... values) { listnote.add(values[0]); ((arrayadapter)(listview.getadapter())).notifydatasetchanged(); } private void readaddresses() { bufferedreader bufferedreader = null; try { bufferedreader = new bufferedreader(new filereader("/proc/net/arp")); string line; while ((line = bufferedreader.readline()) != null) { string[] splitted = line.split(" +"); if (splitted != null && splitted.length >= 4) { string ip = splitted[0]; string mac = splitted[3]; if (mac.matches("..:..:..:..:..:..")) { node thisnode = new node(ip, mac); publishprogress(thisnode); } } } } catch (filenotfoundexception e) { e.printstacktrace(); } catch (ioexception e) { e.printstacktrace(); } finally{ try { bufferedreader.close(); } catch (ioexception e) { e.printstacktrace(); } } } } } my code activity_scanwifi.xml:
<?xml version="1.0" encoding="utf-8"?> <linearlayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="16dp" android:orientation="vertical" tools:context="com.nliplace.nli.unealta.scanwifi"> <textview android:layout_width="wrap_content" android:layout_height="wrap_content" android:textappearance="?android:attr/textappearancelarge" android:text="aceasta activitate foloseste un api pentru identifica dispozitive cunoscute." android:id="@+id/textview11" /> <button android:id="@+id/readclient" android:layout_width="156dp" android:layout_height="wrap_content" android:textallcaps="false" android:text="scaneaza" android:layout_gravity="center_horizontal" /> <textview android:id="@+id/result" android:layout_width="match_parent" android:layout_height="wrap_content"/> <listview android:id="@+id/nodelist" android:layout_width="match_parent" android:layout_height="wrap_content"/> </linearlayout>
to append in file /proc/net/arp need make ping on network.
option 1: ping -b 192.168.0.255
problem: don't windows divices becouse deny broadcast ping.
option 2: (recommended)
ping for's.
problem: append fille pinged ip , no mac (00:00:00:00:00:00) , have deny inalid mac's.
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