From a7c3fd185aea31368434368d843d75c852389eed Mon Sep 17 00:00:00 2001
From: Adam <adam@nimbuscontrols.com>
Date: Thu, 13 Aug 2020 21:02:14 -0400
Subject: [PATCH] fix issue with uninitialized variables in parameter object

---
 src/ParameterObject.cpp | 60 ++++++++++++++++++++++++-----------------
 src/ParameterObject.h   |  7 +++++
 2 files changed, 43 insertions(+), 24 deletions(-)

diff --git a/src/ParameterObject.cpp b/src/ParameterObject.cpp
index 462929a..b6aec85 100644
--- a/src/ParameterObject.cpp
+++ b/src/ParameterObject.cpp
@@ -40,29 +40,36 @@ namespace eipScanner {
 		: ParameterObject(id, fullAttributes, si, std::make_shared<MessageRouter>()) {
 	}
 
-	ParameterObject::ParameterObject(cip::CipUint instanceId, bool fullAttributes, size_t typeSize)
-		:  BaseObject(CLASS_ID, instanceId)
-		, _hasFullAttributes(fullAttributes)
-		, _value(typeSize)
-		, _maxValue(typeSize)
-		, _minValue(typeSize)
-		, _defaultValue(typeSize)
-		, _isScalable(false)
-		, _isReadOnly(false)
-		, _scalingMultiplier(1)
-		, _scalingDivisor(1)
-		, _scalingBase(1)
-		, _scalingOffset(0) {
-	}
-
-	ParameterObject::ParameterObject(cip::CipUint instanceId, bool fullAttributes,
-			const SessionInfoIf::SPtr &si,
-			const MessageRouter::SPtr& messageRouter)
-		:  BaseObject(CLASS_ID, instanceId)
-		, _name{""}
-		, _hasFullAttributes{fullAttributes}
-		, _isScalable{false}
-		, _messageRouter{messageRouter} {
+    ParameterObject::ParameterObject(cip::CipUint instanceId, bool fullAttributes, size_t typeSize)
+            :  BaseObject(CLASS_ID, instanceId)
+            , _hasFullAttributes(fullAttributes)
+            , _value(typeSize)
+            , _maxValue(typeSize)
+            , _minValue(typeSize)
+            , _defaultValue(typeSize)
+            , _isScalable(false)
+            , _isReadOnly(false)
+            , _scalingMultiplier(1)
+            , _scalingDivisor(1)
+            , _scalingBase(1)
+            , _scalingOffset(0)
+            , _precision(0) {
+    }
+
+    ParameterObject::ParameterObject(cip::CipUint instanceId, bool fullAttributes,
+                                     const SessionInfoIf::SPtr &si,
+                                     const MessageRouter::SPtr& messageRouter)
+            :  BaseObject(CLASS_ID, instanceId)
+            , _name{""}
+            , _hasFullAttributes{fullAttributes}
+            , _isScalable{false}
+            , _isReadOnly(false)
+            , _scalingMultiplier(1)
+            , _scalingDivisor(1)
+            , _scalingBase(1)
+            , _scalingOffset(0)
+            , _precision(0)
+            , _messageRouter{messageRouter} {
 
 
 		Logger(LogLevel::DEBUG) << "Read data from parameter ID=" << instanceId;
@@ -103,7 +110,8 @@ namespace eipScanner {
 			CipWord descriptor;
 			buffer >> descriptor >> reinterpret_cast<CipUsint&>(_type);
 
-			_isScalable = descriptor & DescriptorAttributeBits::SUPPORTS_SCALING;
+            _parameter = instanceId;
+            _isScalable = descriptor & DescriptorAttributeBits::SUPPORTS_SCALING;
 			_isReadOnly = descriptor & DescriptorAttributeBits::READ_ONLY;
 			Logger(LogLevel::DEBUG) << "Parameter object ID=" << instanceId
 									<< " has descriptor=0x" << std::hex << descriptor
@@ -209,6 +217,10 @@ namespace eipScanner {
 		return _help;
 	}
 
+    const cip::CipUint &ParameterObject::getParameter() const {
+	    return _parameter;
+	}
+
 	CipUint ParameterObject::getScalingMultiplier() const {
 		return _scalingMultiplier;
 	}
diff --git a/src/ParameterObject.h b/src/ParameterObject.h
index 4238a32..55c006f 100644
--- a/src/ParameterObject.h
+++ b/src/ParameterObject.h
@@ -254,6 +254,12 @@ class ParameterObject : public BaseObject {
 	 */
 	const std::string &getHelp() const;
 
+	/**
+	 * @brief Gets the number of parameter (instance ID)
+	 * @return
+	 */
+	 const cip::CipUint &getParameter() const;
+
 	/**
 	 * @brief Sets the name [AttrID=7] of the parameter
 	 * @param name
@@ -356,6 +362,7 @@ class ParameterObject : public BaseObject {
 	bool _isScalable;
 	bool _isReadOnly;
 
+    cip::CipUint _parameter;
 	std::vector<uint8_t> _value;
 	cip::CipDataTypes _type;
 	std::string _name;