add ARP table info

tui/main.cpp

@@ -4,6 +4,7 @@
 #include <QCoreApplication>
 #include <QRegularExpression>
 #include <interface.h>
+#include <neighbor.h>
 #include <QStringList>
 #include <QHash>
 
@@ -58,6 +59,7 @@ check_return:
   delwin(msgbox);
 }
 
+void arpMenu(WINDOW *window);
 void interfaceMenu(WINDOW *window);
 void interfaceSelect(WINDOW *window, QString interface);
 
@@ -90,10 +92,78 @@ void mainmenu(WINDOW *window) {
   }else{
     if(c == '1') {
       interfaceMenu(window);
+    }else if(c == '2') {
+      arpMenu(window);
     }
   }
 }
 
+void arpMenu(WINDOW *window) {
+  wclear(window);
+
+  cyan(window);
+  box(window, 0, 0);
+
+  red(window);
+  mvwaddstr(window, 1, 2, "APR Table:");
+
+  green(window);
+
+  QHash<QString, QString> arpList = Neighbor::list(QString());
+
+  int y = 3;
+  int width = 0;
+  int widthMAC = 0;
+  int widthIP = 0;
+  QString format = "%-";
+
+  foreach(QString arp, arpList.keys()) {
+    QString mac = arpList.value(arp);
+    widthMAC = qMax(widthMAC, mac.length());
+    widthIP = qMax(widthIP, arp.length());
+  }
+
+  width = widthMAC + widthIP;
+  format += QString::number(widthIP) + "s at %" + QString::number(widthMAC) + "s";
+
+  QByteArray formatArr = format.toLatin1();
+  const char *formatStr = formatArr.constData();
+  char *str = (char*)malloc(width + 5);
+
+  foreach(QString arp, arpList.keys()) {
+    //arp = QString::number(count) + ". " + arp;
+    memset(str, 0, width + 5);
+    QByteArray arpArray = arp.toLatin1();
+    QString arpMac = arpList.value(arp);
+    QByteArray arpMacArray = arpMac.toLatin1();
+    const char *arpStr = arpArray.constData();
+    const char *arpMacStr = arpMacArray.constData();
+
+    snprintf(str, width + 4, formatStr, arpStr, arpMacStr);
+    /*memcpy(str, arpStr, strlen(arpStr));
+    memcpy(str + strlen(arpStr), " at ", 4);
+    memcpy(str + strlen(arpStr) + 4, arpMacStr, strlen(arpMacStr));*/
+
+    mvwaddstr(window, y, 2, str);
+
+    ++y;
+  }
+
+  free(str);
+  cyan(window);
+  mvwaddstr(window, y + 1, 2, "0. Back to main menu");
+  wrefresh(window);
+
+arpChar:
+  char c = getch();
+
+  if(c != '0') {
+    goto arpChar;
+  }else{
+    mainmenu(window);
+  }
+}
+
 void interfaceMenu(WINDOW *window) {
   wclear(window);