Add new API call to stop a guest VM

REST Request:
-------------------------------
PUT /sysadm/iohyve
{
   "action" : "stop",
   "name" : "bsdguest"
}

WebSocket Request:
-------------------------------
{
   "id" : "fooid",
   "args" : {
      "action" : "stop",
      "name" : "bsdguest"
   },
   "name" : "iohyve",
   "namespace" : "sysadm"
}

Response:
-------------------------------
{
  "args": {
    "stop": {
      "name": "bsdguest"
    }
  },
  "id": "fooid",
  "name": "response",
  "namespace": "sysadm"
}

src/server/WebBackend.cpp

@@ -537,6 +537,10 @@ RestOutputStruct::ExitCode WebSocket::EvaluateSysadmIohyveRequest(const QJsonVal
 	ok = true;
         out->insert("start", sysadm::Iohyve::startGuest(in_args.toObject()));
       }
+      if(act=="stop"){
+	ok = true;
+        out->insert("stop", sysadm::Iohyve::stopGuest(in_args.toObject()));
+      }
     } //end of "action" key usage
 
     //If nothing done - return the proper code

src/server/library/sysadm-iohyve.cpp

@@ -256,3 +256,38 @@ QJsonObject Iohyve::startGuest(QJsonObject jsin) {
   retObject.insert("name", name);
   return retObject;
 }
+
+// Stop a guest
+QJsonObject Iohyve::stopGuest(QJsonObject jsin) {
+  QJsonObject retObject;
+
+  QStringList keys = jsin.keys();
+  if (! keys.contains("name") ) {
+    retObject.insert("error", "Missing required key 'name'");
+    return retObject;
+  }
+
+  // Get the key values
+  QString name = jsin.value("name").toString();
+
+  QString stoparg = "stop";
+  if (! keys.contains("force") ) {
+    if ( jsin.value("force").toString() == "true" ) {
+      stoparg = "forcekill";
+    }
+  }
+
+  // Do the stop right now
+  QStringList output = General::RunCommand("iohyve " + stoparg + " " + name).split("\n");
+  for ( int i = 0; i < output.size(); i++)
+  {
+    // This doesn't work, iohyve doesn't return error message right now
+    if ( output.at(i).indexOf("No such guest") != -1 ) {
+      retObject.insert("error", output.at(i));
+      return retObject;
+    }
+  }
+
+  retObject.insert("name", name);
+  return retObject;
+}

src/server/library/sysadm-iohyve.h

@@ -23,6 +23,7 @@ public:
 	static QJsonObject rmISO(QJsonObject);
 	static QJsonObject setupIohyve(QJsonObject);
 	static QJsonObject startGuest(QJsonObject);
+	static QJsonObject stopGuest(QJsonObject);
 };
 	
 } //end of pcbsd namespace