Fix compile warnings in 64 bit builds & make debug builds work properly

Bug: 480160, 443722

Fix compile warnings in 64 bit builds & make debug builds work properly
Bug: 480160, 443722
2912e2b9 · Ian Craggs · ddc08ce8 · 2912e2b9 · 2912e2b9 · 2912e2b9
Commit 2912e2b9 authored Nov 04, 2015 by Ian Craggs
27 changed files
--- a/Windows Build/paho-mqtt3cs/paho-mqtt3cs.vcxproj
+++ b/Windows Build/paho-mqtt3cs/paho-mqtt3cs.vcxproj
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\ No newline at end of file
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+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
-      <SubSystem>Console</SubSystem>
+    </ClCompile>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
+    <Link>
-    </Link>
+      <SubSystem>Console</SubSystem>
-  </ItemDefinitionGroup>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+      <AdditionalLibraryDirectories>$(SolutionDir)..\build\output\;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-    <ClCompile>
+      <AdditionalDependencies>ws2_32.lib;paho-mqtt3as.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <PrecompiledHeader>
+    </Link>
-      </PrecompiledHeader>
+  </ItemDefinitionGroup>
-      <WarningLevel>Level3</WarningLevel>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
-      <Optimization>Disabled</Optimization>
+    <ClCompile>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PrecompiledHeader>
-      <SDLCheck>true</SDLCheck>
+      </PrecompiledHeader>
-    </ClCompile>
+      <WarningLevel>Level3</WarningLevel>
-    <Link>
+      <Optimization>Disabled</Optimization>
-      <SubSystem>Console</SubSystem>
+      <PreprocessorDefinitions>WIN32_LEAN_AND_MEAN;_WINDOWS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SDLCheck>true</SDLCheck>
-      <AdditionalLibraryDirectories>$(SolutionDir)\x64\$(Configuration)</AdditionalLibraryDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)\..\src</AdditionalIncludeDirectories>
-    </Link>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
-  </ItemDefinitionGroup>
+    </ClCompile>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Link>
-    <ClCompile>
+      <SubSystem>Console</SubSystem>
-      <WarningLevel>Level3</WarningLevel>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <PrecompiledHeader>
+      <AdditionalLibraryDirectories>$(SolutionDir)\x64\$(Configuration)</AdditionalLibraryDirectories>
-      </PrecompiledHeader>
+      <AdditionalDependencies>ws2_32.lib;paho-mqtt3as.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <Optimization>MaxSpeed</Optimization>
+    </Link>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
+  </ItemDefinitionGroup>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-      <PreprocessorDefinitions>WIN32_LEAN_AND_MEAN;_WINDOWS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    <ClCompile>
-      <SDLCheck>true</SDLCheck>
+      <WarningLevel>Level3</WarningLevel>
-      <AdditionalIncludeDirectories>$(SolutionDir)\..\src</AdditionalIncludeDirectories>
+      <PrecompiledHeader>
-      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+      </PrecompiledHeader>
-    </ClCompile>
+      <Optimization>MaxSpeed</Optimization>
-    <Link>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <SubSystem>Console</SubSystem>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <PreprocessorDefinitions>WIN32_LEAN_AND_MEAN;_WINDOWS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <SDLCheck>true</SDLCheck>
-      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalIncludeDirectories>$(SolutionDir)\..\src</AdditionalIncludeDirectories>
-      <AdditionalLibraryDirectories>$(SolutionDir)..\build\output\;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
-      <AdditionalDependencies>ws2_32.lib;paho-mqtt3as.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </ClCompile>
-    </Link>
+    <Link>
-  </ItemDefinitionGroup>
+      <SubSystem>Console</SubSystem>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+      <GenerateDebugInformation>true</GenerateDebugInformation>
-    <ClCompile>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <WarningLevel>Level3</WarningLevel>
+      <OptimizeReferences>true</OptimizeReferences>
-      <PrecompiledHeader>
+      <AdditionalLibraryDirectories>$(SolutionDir)..\build\output\;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      </PrecompiledHeader>
+      <AdditionalDependencies>ws2_32.lib;paho-mqtt3as.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <Optimization>MaxSpeed</Optimization>
+    </Link>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
+  </ItemDefinitionGroup>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
-      <PreprocessorDefinitions>WIN32_LEAN_AND_MEAN;_WINDOWS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    <ClCompile>
-      <SDLCheck>true</SDLCheck>
+      <WarningLevel>Level3</WarningLevel>
-      <AdditionalIncludeDirectories>$(SolutionDir)\..\src</AdditionalIncludeDirectories>
+      <PrecompiledHeader>
-      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
+      </PrecompiledHeader>
-    </ClCompile>
+      <Optimization>MaxSpeed</Optimization>
-    <Link>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <SubSystem>Console</SubSystem>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <PreprocessorDefinitions>WIN32_LEAN_AND_MEAN;_WINDOWS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <SDLCheck>true</SDLCheck>
-      <OptimizeReferences>true</OptimizeReferences>
+      <AdditionalIncludeDirectories>$(SolutionDir)\..\src</AdditionalIncludeDirectories>
-      <AdditionalLibraryDirectories>$(SolutionDir)\x64\$(Configuration)</AdditionalLibraryDirectories>
+      <DisableSpecificWarnings>4996</DisableSpecificWarnings>
-      <AdditionalDependencies>ws2_32.lib;paho-mqtt3as.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </ClCompile>
-    </Link>
+    <Link>
-  </ItemDefinitionGroup>
+      <SubSystem>Console</SubSystem>
-  <ItemGroup>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
-    <ClInclude Include="..\..\src\MQTTAsync.h" />
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-    <ClInclude Include="..\..\src\MQTTClientPersistence.h" />
+      <OptimizeReferences>true</OptimizeReferences>
-  </ItemGroup>
+      <AdditionalLibraryDirectories>$(SolutionDir)\x64\$(Configuration)</AdditionalLibraryDirectories>
-  <ItemGroup>
+      <AdditionalDependencies>ws2_32.lib;paho-mqtt3as.lib;%(AdditionalDependencies)</AdditionalDependencies>
-    <ClCompile Include="..\..\test\test5.c" />
+    </Link>
-  </ItemGroup>
+  </ItemDefinitionGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ItemGroup>
-  <ImportGroup Label="ExtensionTargets">
+    <ClInclude Include="..\..\src\MQTTAsync.h" />
-  </ImportGroup>
+    <ClInclude Include="..\..\src\MQTTClientPersistence.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="..\..\test\test5.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
 </Project>
\ No newline at end of file
--- a/src/Heap.c
+++ b/src/Heap.c
@@ -62,7 +62,7 @@ typedef struct
 	char* file;		/**< the name of the source file where the storage was allocated */
 	int line;		/**< the line no in the source file where it was allocated */
 	void* ptr;		/**< pointer to the allocated storage */
-	int size;       /**< size of the allocated storage */
+	size_t size;    /**< size of the allocated storage */
 } storageElement;
 static Tree heap;	/**< Tree that holds the allocation records */
@@ -75,7 +75,7 @@ static char* errmsg = "Memory allocation error";
 * @param size the size actually needed
 * @return the rounded up size
 */
-int Heap_roundup(int size)
+size_t Heap_roundup(size_t size)
 {
 	static int multsize = 4*sizeof(int);
@@ -139,8 +139,8 @@ void Heap_check(char* string, void* ptr)
 void* mymalloc(char* file, int line, size_t size)
 {
 	storageElement* s = NULL;
-	int space = sizeof(storageElement);
+	size_t space = sizeof(storageElement);
-	int filenamelen = strlen(file)+1;
+	size_t filenamelen = strlen(file)+1;
 	Thread_lock_mutex(heap_mutex);
 	size = Heap_roundup(size);
@@ -180,7 +180,7 @@ void* mymalloc(char* file, int line, size_t size)
 }
-void checkEyecatchers(char* file, int line, void* p, int size)
+void checkEyecatchers(char* file, int line, void* p, size_t size)
 {
 	int *sp = (int*)p;
 	char *cp = (char*)p;
@@ -282,8 +282,8 @@ void *myrealloc(char* file, int line, void* p, size_t size)
 		Log(LOG_ERROR, 13, "Failed to reallocate heap item at file %s line %d", file, line);
 	else
 	{
-		int space = sizeof(storageElement);
+		size_t space = sizeof(storageElement);
-		int filenamelen = strlen(file)+1;
+		size_t filenamelen = strlen(file)+1;
 		checkEyecatchers(file, line, p, s->size);
 		size = Heap_roundup(size);
@@ -393,7 +393,7 @@ heap_info* Heap_get_info()
 int HeapDumpString(FILE* file, char* str)
 {
 	int rc = 0;
-	int len = str ? strlen(str) + 1 : 0; /* include the trailing null */
+	size_t len = str ? strlen(str) + 1 : 0; /* include the trailing null */
 	if (fwrite(&(str), sizeof(char*), 1, file) != 1)
 		rc = -1;

--- a/src/Heap.h
+++ b/src/Heap.h
@@ -56,8 +56,8 @@
 */
 typedef struct
 {
-	int current_size;	/**< current size of the heap in bytes */
+	size_t current_size;	/**< current size of the heap in bytes */
-	int max_size;		/**< max size the heap has reached in bytes */
+	size_t max_size;		/**< max size the heap has reached in bytes */
 } heap_info;

--- a/src/LinkedList.c
+++ b/src/LinkedList.c
@@ -67,7 +67,7 @@ List* ListInitialize(void)
 * @param newel the ListElement to be used in adding the new item
 * @param size the size of the element
 */
-void ListAppendNoMalloc(List* aList, void* content, ListElement* newel, int size)
+void ListAppendNoMalloc(List* aList, void* content, ListElement* newel, size_t size)
 { /* for heap use */
 	newel->content = content;
 	newel->next = NULL;
@@ -88,7 +88,7 @@ void ListAppendNoMalloc(List* aList, void* content, ListElement* newel, int size
 * @param content the list item content itself
 * @param size the size of the element
 */
-void ListAppend(List* aList, void* content, int size)
+void ListAppend(List* aList, void* content, size_t size)
 {
 	ListElement* newel = malloc(sizeof(ListElement));
 	ListAppendNoMalloc(aList, content, newel, size);
@@ -103,7 +103,7 @@ void ListAppend(List* aList, void* content, int size)
 * @param index the position in the list. If NULL, this function is equivalent
 * to ListAppend.
 */
-void ListInsert(List* aList, void* content, int size, ListElement* index)
+void ListInsert(List* aList, void* content, size_t size, ListElement* index)
 {
 	ListElement* newel = malloc(sizeof(ListElement));
@@ -359,7 +359,8 @@ void ListEmpty(List* aList)
 		aList->first = first->next;
 		free(first);
 	}
-	aList->count = aList->size = 0;
+	aList->count = 0;
+	aList->size = 0;
 	aList->current = aList->first = aList->last = NULL;
 }

--- a/src/LinkedList.h
+++ b/src/LinkedList.h
@@ -13,11 +13,14 @@
 * Contributors:
 *    Ian Craggs - initial API and implementation and/or initial documentation
 *    Ian Craggs - updates for the async client
+ *    Ian Craggs - change size types from int to size_t
 *******************************************************************************/
 #if !defined(LINKEDLIST_H)
 #define LINKEDLIST_H
+#include <stdlib.h> // for size_t definition
 /*BE
 defm defList(T)
@@ -66,16 +69,16 @@ typedef struct
 	ListElement *first,	/**< first element in the list */
 				*last,	/**< last element in the list */
 				*current;	/**< current element in the list, for iteration */
-	int count,  /**< no of items */
+	int count;  /**< no of items */
-	    size;  /**< heap storage used */
+	size_t size;  /**< heap storage used */
 } List;
 void ListZero(List*);
 List* ListInitialize(void);
-void ListAppend(List* aList, void* content, int size);
+void ListAppend(List* aList, void* content, size_t size);
-void ListAppendNoMalloc(List* aList, void* content, ListElement* newel, int size);
+void ListAppendNoMalloc(List* aList, void* content, ListElement* newel, size_t size);
-void ListInsert(List* aList, void* content, int size, ListElement* index);
+void ListInsert(List* aList, void* content, size_t size, ListElement* index);
 int ListRemove(List* aList, void* content);
 int ListRemoveItem(List* aList, void* content, int(*callback)(void*, void*));

--- a/src/MQTTAsync.c
+++ b/src/MQTTAsync.c
@@ -489,7 +489,7 @@ int MQTTAsync_persistCommand(MQTTAsync_queuedCommand* qcmd)
 	int rc = 0;
 	MQTTAsyncs* aclient = qcmd->client;
 	MQTTAsync_command* command = &qcmd->command;
-	int* lens = NULL;
+	size_t* lens = NULL;
 	void** bufs = NULL;
 	int bufindex = 0, i, nbufs = 0;
 	char key[PERSISTENCE_MAX_KEY_LENGTH + 1];
@@ -500,7 +500,7 @@ int MQTTAsync_persistCommand(MQTTAsync_queuedCommand* qcmd)
 		case SUBSCRIBE:
 			nbufs = 3 + (command->details.sub.count * 2);
-			lens = (int*)malloc(nbufs * sizeof(int));
+			lens = (size_t*)malloc(nbufs * sizeof(int));
 			bufs = malloc(nbufs * sizeof(char *));
 			bufs[bufindex] = &command->type;
@@ -525,7 +525,7 @@ int MQTTAsync_persistCommand(MQTTAsync_queuedCommand* qcmd)
 		case UNSUBSCRIBE:
 			nbufs = 3 + command->details.unsub.count;
-			lens = (int*)malloc(nbufs * sizeof(int));
+			lens = (size_t*)malloc(nbufs * sizeof(size_t));
 			bufs = malloc(nbufs * sizeof(char *));
 			bufs[bufindex] = &command->type;
@@ -548,7 +548,7 @@ int MQTTAsync_persistCommand(MQTTAsync_queuedCommand* qcmd)
 		case PUBLISH:
 			nbufs = 7;
-			lens = (int*)malloc(nbufs * sizeof(int));
+			lens = (size_t*)malloc(nbufs * sizeof(size_t));
 			bufs = malloc(nbufs * sizeof(char *));
 			bufs[bufindex] = &command->type;
@@ -577,7 +577,7 @@ int MQTTAsync_persistCommand(MQTTAsync_queuedCommand* qcmd)
 	}
 	if (nbufs > 0)
 	{
-		if ((rc = aclient->c->persistence->pput(aclient->c->phandle, key, nbufs, (char**)bufs, lens)) != 0)
+		if ((rc = aclient->c->persistence->pput(aclient->c->phandle, key, nbufs, (char**)bufs, (int*)lens)) != 0)
 			Log(LOG_ERROR, 0, "Error persisting command, rc %d", rc);
 		qcmd->seqno = aclient->command_seqno;
 	}
@@ -595,7 +595,8 @@ MQTTAsync_queuedCommand* MQTTAsync_restoreCommand(char* buffer, int buflen)
 	MQTTAsync_command* command = NULL;
 	MQTTAsync_queuedCommand* qcommand = NULL;
 	char* ptr = buffer;
-	int i, data_size;
+	int i;
+	size_t data_size;
 	FUNC_ENTRY;
 	qcommand = malloc(sizeof(MQTTAsync_queuedCommand));
@@ -633,7 +634,7 @@ MQTTAsync_queuedCommand* MQTTAsync_restoreCommand(char* buffer, int buflen)
 			for (i = 0; i < command->details.unsub.count; ++i)
 			{
-				int data_size = strlen(ptr) + 1;
+				size_t data_size = strlen(ptr) + 1;
 				command->details.unsub.topics[i] = malloc(data_size);
 				strcpy(command->details.unsub.topics[i], ptr);
@@ -1877,7 +1878,7 @@ int MQTTAsync_deliverMessage(MQTTAsyncs* m, char* topicName, size_t topicLen, MQ
 	Log(TRACE_MIN, -1, "Calling messageArrived for client %s, queue depth %d",
 					m->c->clientID, m->c->messageQueue->count);
-	rc = (*(m->ma))(m->context, topicName, topicLen, mm);
+	rc = (*(m->ma))(m->context, topicName, (int)topicLen, mm);
 	/* if 0 (false) is returned by the callback then it failed, so we don't remove the message from
 	 * the queue, and it will be retried later.  If 1 is returned then the message data may have been freed,
 	 * so we must be careful how we use it.

--- a/src/MQTTPacket.c
+++ b/src/MQTTPacket.c
@@ -96,10 +96,10 @@ void* MQTTPacket_Factory(networkHandles* net, int* error)
 {
 	char* data = NULL;
 	static Header header;
-	int remaining_length, ptype;
+	size_t remaining_length;
-	size_t remaining_length_new;
+	int ptype;
 	void* pack = NULL;
-	int actual_len = 0;
+	size_t actual_len = 0;
 	FUNC_ENTRY;
 	*error = SOCKET_ERROR;  /* indicate whether an error occurred, or not */
@@ -148,9 +148,8 @@ void* MQTTPacket_Factory(networkHandles* net, int* error)
 				char *buf = malloc(10);
 				buf[0] = header.byte;
 				buf0len = 1 + MQTTPacket_encode(&buf[1], remaining_length);
-				remaining_length_new = remaining_length;
 				*error = MQTTPersistence_put(net->socket, buf, buf0len, 1,
-					&data, &remaining_length_new, header.bits.type, ((Publish *)pack)->msgId, 1);
+					&data, &remaining_length, header.bits.type, ((Publish *)pack)->msgId, 1);
 				free(buf);
 			}
 #endif
@@ -174,7 +173,8 @@ exit:
 */
 int MQTTPacket_send(networkHandles* net, Header header, char* buffer, size_t buflen, int free)
 {
-	int rc, buf0len;
+	int rc;
+	size_t buf0len;
 	char *buf;
 	FUNC_ENTRY;
@@ -220,7 +220,8 @@ int MQTTPacket_send(networkHandles* net, Header header, char* buffer, size_t buf
 */
 int MQTTPacket_sends(networkHandles* net, Header header, int count, char** buffers, size_t* buflens, int* frees)
 {
-	int i, rc, buf0len, total = 0;
+	int i, rc;
+	size_t buf0len, total = 0;
 	char *buf;
 	FUNC_ENTRY;
@@ -261,7 +262,7 @@ int MQTTPacket_sends(networkHandles* net, Header header, int count, char** buffe
 * @param length the length to be encoded
 * @return the number of bytes written to buffer
 */
-int MQTTPacket_encode(char* buf, int length)
+int MQTTPacket_encode(char* buf, size_t length)
 {
 	int rc = 0;
@@ -286,7 +287,7 @@ int MQTTPacket_encode(char* buf, int length)
 * @param value the decoded length returned
 * @return the number of bytes read from the socket
 */
-int MQTTPacket_decode(networkHandles* net, int* value)
+int MQTTPacket_decode(networkHandles* net, size_t* value)
 {
 	int rc = SOCKET_ERROR;
 	char c;
@@ -429,8 +430,8 @@ void writeInt(char** pptr, int anInt)
 */
 void writeUTF(char** pptr, const char* string)
 {
-	int len = strlen(string);
+	size_t len = strlen(string);
-	writeInt(pptr, len);
+	writeInt(pptr, (int)len);
 	memcpy(*pptr, string, len);
 	*pptr += len;
 }
@@ -497,7 +498,7 @@ void* MQTTPacket_publish(unsigned char aHeader, char* data, size_t datalen)
 	else
 		pack->msgId = 0;
 	pack->payload = curdata;
-	pack->payloadlen = datalen-(curdata-data);
+	pack->payloadlen = (int)(datalen-(curdata-data));
 exit:
 	FUNC_EXIT;
 	return pack;
@@ -691,7 +692,7 @@ int MQTTPacket_send_publish(Publish* pack, int dup, int qos, int retained, netwo
 		writeInt(&ptr, pack->msgId);
 		ptr = topiclen;
-		writeInt(&ptr, lens[1]);
+		writeInt(&ptr, (int)lens[1]);
 		rc = MQTTPacket_sends(net, header, 4, bufs, lens, frees);
 		if (rc != TCPSOCKET_INTERRUPTED)
 			free(buf);
@@ -703,7 +704,7 @@ int MQTTPacket_send_publish(Publish* pack, int dup, int qos, int retained, netwo
 		size_t lens[3] = {2, strlen(pack->topic), pack->payloadlen};
 		int frees[3] = {1, 0, 0};
-		writeInt(&ptr, lens[1]);
+		writeInt(&ptr, (int)lens[1]);
 		rc = MQTTPacket_sends(net, header, 3, bufs, lens, frees);
 	}
 	if (rc != TCPSOCKET_INTERRUPTED)

--- a/src/MQTTPacket.h
+++ b/src/MQTTPacket.h
@@ -216,8 +216,8 @@ typedef Ack Pubrel;
 typedef Ack Pubcomp;
 typedef Ack Unsuback;
-int MQTTPacket_encode(char* buf, int length);
+int MQTTPacket_encode(char* buf, size_t length);
-int MQTTPacket_decode(networkHandles* net, int* value);
+int MQTTPacket_decode(networkHandles* net, size_t* value);
 int readInt(char** pptr);
 char* readUTF(char** pptr, char* enddata);
 unsigned char readChar(char** pptr);

--- a/src/MQTTPacketOut.c
+++ b/src/MQTTPacketOut.c
@@ -51,13 +51,13 @@ int MQTTPacket_send_connect(Clients* client, int MQTTVersion)
 	packet.header.byte = 0;
 	packet.header.bits.type = CONNECT;
-	len = ((MQTTVersion == 3) ? 12 : 10) + strlen(client->clientID)+2;
+	len = ((MQTTVersion == 3) ? 12 : 10) + (int)strlen(client->clientID)+2;
 	if (client->will)
-		len += strlen(client->will->topic)+2 + strlen(client->will->msg)+2;
+		len += (int)strlen(client->will->topic)+2 + (int)strlen(client->will->msg)+2;
 	if (client->username)
-		len += strlen(client->username)+2;
+		len += (int)strlen(client->username)+2;
 	if (client->password)
-		len += strlen(client->password)+2;
+		len += (int)strlen(client->password)+2;
 	ptr = buf = malloc(len);
 	if (MQTTVersion == 3)
@@ -179,7 +179,7 @@ int MQTTPacket_send_subscribe(List* topics, List* qoss, int msgid, int dup, netw
 	datalen = 2 + topics->count * 3; // utf length + char qos == 3
 	while (ListNextElement(topics, &elem))
-		datalen += strlen((char*)(elem->content));
+		datalen += (int)strlen((char*)(elem->content));
 	ptr = data = malloc(datalen);
 	writeInt(&ptr, msgid);
@@ -252,7 +252,7 @@ int MQTTPacket_send_unsubscribe(List* topics, int msgid, int dup, networkHandles
 	datalen = 2 + topics->count * 2; // utf length == 2
 	while (ListNextElement(topics, &elem))
-		datalen += strlen((char*)(elem->content));
+		datalen += (int)strlen((char*)(elem->content));
 	ptr = data = malloc(datalen);
 	writeInt(&ptr, msgid);

--- a/src/MQTTPersistence.c
+++ b/src/MQTTPersistence.c
@@ -350,13 +350,13 @@ int MQTTPersistence_put(int socket, char* buf0, size_t buf0len, int count,
 	{
 		key = malloc(MESSAGE_FILENAME_LENGTH + 1);
 		nbufs = 1 + count;
-		lens = (int *) malloc(nbufs * sizeof(int));
+		lens = (int *)malloc(nbufs * sizeof(int));
 		bufs = (char **)malloc(nbufs * sizeof(char *));
-		lens[0] = buf0len;
+		lens[0] = (int)buf0len;
 		bufs[0] = buf0;
 		for (i = 0; i < count; i++)
 		{
-			lens[i+1] = buflens[i];
+			lens[i+1] = (int)buflens[i];
 			bufs[i+1] = buffers[i];
 		}
@@ -512,7 +512,7 @@ int MQTTPersistence_persistQueueEntry(Clients* aclient, MQTTPersistence_qEntry*
 	lens[bufindex++] = sizeof(qe->msg->msgid);
 	bufs[bufindex] = qe->topicName;
-	lens[bufindex++] = strlen(qe->topicName) + 1;
+	lens[bufindex++] = (int)strlen(qe->topicName) + 1;
 	bufs[bufindex] = &qe->topicLen;
 	lens[bufindex++] = sizeof(qe->topicLen);			
@@ -564,7 +564,7 @@ MQTTPersistence_qEntry* MQTTPersistence_restoreQueueEntry(char* buffer, size_t b
 	qe->msg->msgid = *(int*)ptr;
 	ptr += sizeof(int);
-	data_size = strlen(ptr) + 1;	
+	data_size = (int)strlen(ptr) + 1;	
 	qe->topicName = malloc(data_size);
 	strcpy(qe->topicName, ptr);
 	ptr += data_size;

--- a/src/MQTTPersistenceDefault.c
+++ b/src/MQTTPersistenceDefault.c
@@ -148,8 +148,8 @@ int pstput(void* handle, char* key, int bufcount, char* buffers[], int buflens[]
 	char *clientDir = handle;
 	char *file;
 	FILE *fp;
-	int bytesWritten = 0;
+	size_t bytesWritten = 0,
-	int bytesTotal = 0;
+	       bytesTotal = 0;
 	int i;
 	FUNC_ENTRY;
@@ -169,14 +169,14 @@ int pstput(void* handle, char* key, int bufcount, char* buffers[], int buflens[]
 		for(i=0; i<bufcount; i++)
 		{
 			bytesTotal += buflens[i];
-			bytesWritten += fwrite( buffers[i], sizeof(char), buflens[i], fp );
+			bytesWritten += fwrite(buffers[i], sizeof(char), buflens[i], fp );
 		}
 		fclose(fp);
 		fp = NULL;
 	} else
 		rc = MQTTCLIENT_PERSISTENCE_ERROR;
-	if ( bytesWritten != bytesTotal )
+	if (bytesWritten != bytesTotal)
 	{
 		pstremove(handle, key);
 		rc = MQTTCLIENT_PERSISTENCE_ERROR;
@@ -221,7 +221,7 @@ int pstget(void* handle, char* key, char** buffer, int* buflen)
 		fileLen = ftell(fp);
 		fseek(fp, 0, SEEK_SET);
 		buf=(char *)malloc(fileLen);
-		bytesRead = fread(buf, sizeof(char), fileLen, fp);
+		bytesRead = (int)fread(buf, sizeof(char), fileLen, fp);
 		*buffer = buf;
 		*buflen = bytesRead;
 		if ( bytesRead != fileLen )

--- a/src/MQTTProtocolClient.c
+++ b/src/MQTTProtocolClient.c
@@ -210,7 +210,7 @@ Publications* MQTTProtocol_storePublication(Publish* publish, int* len)
 	FUNC_ENTRY;
 	p->refcount = 1;
-	*len = strlen(publish->topic)+1;
+	*len = (int)strlen(publish->topic)+1;
 	if (Heap_findItem(publish->topic))
 		p->topic = publish->topic;
 	else

--- a/src/MQTTProtocolOut.c
+++ b/src/MQTTProtocolOut.c
@@ -45,7 +45,7 @@ char* MQTTProtocol_addressPort(const char* uri, int* port)
 {
 	char* colon_pos = strrchr(uri, ':'); /* reverse find to allow for ':' in IPv6 addresses */
 	char* buf = (char*)uri;
-	int len;
+	size_t len;
 	FUNC_ENTRY;
 	if (uri[0] == '[')
@@ -56,7 +56,7 @@ char* MQTTProtocol_addressPort(const char* uri, int* port)
 	if (colon_pos)
 	{
-		int addr_len = colon_pos - uri;
+		size_t addr_len = colon_pos - uri;
 		buf = malloc(addr_len + 1);
 		*port = atoi(colon_pos + 1);
 		MQTTStrncpy(buf, uri, addr_len+1);

--- a/src/MQTTVersion.c
+++ b/src/MQTTVersion.c
@@ -71,7 +71,7 @@ char* FindString(char* filename, char* eyecatcher_input)
 	memset(value, 0, 100);
 	if ((infile = fopen(filename, "rb")) != NULL)
 	{
-		int buflen = strlen(eyecatcher);
+		size_t buflen = strlen(eyecatcher);
 		char* buffer = (char*) malloc(buflen);
 		int count = 0;
 		int c = fgetc(infile);

--- a/src/SSLSocket.c
+++ b/src/SSLSocket.c
@@ -295,7 +295,7 @@ int pem_passwd_cb(char* buf, int size, int rwflag, void* userdata)
 	{
 		strncpy(buf, (char*)(userdata), size);
 		buf[size-1] = '\0';
-		rc = strlen(buf);
+		rc = (int)strlen(buf);
 	}
 	FUNC_EXIT_RC(rc);
 	return rc;
@@ -642,7 +642,7 @@ exit:
 *  @param actual_len the actual number of bytes read
 *  @return completion code
 */
-char *SSLSocket_getdata(SSL* ssl, int socket, int bytes, int* actual_len)
+char *SSLSocket_getdata(SSL* ssl, int socket, size_t bytes, size_t* actual_len)
 {
 	int rc;
 	char* buf;
@@ -656,7 +656,7 @@ char *SSLSocket_getdata(SSL* ssl, int socket, int bytes, int* actual_len)
 	buf = SocketBuffer_getQueuedData(socket, bytes, actual_len);
-	if ((rc = SSL_read(ssl, buf + (*actual_len), (size_t)(bytes - (*actual_len)))) < 0)
+	if ((rc = SSL_read(ssl, buf + (*actual_len), (int)(bytes - (*actual_len)))) < 0)
 	{
 		rc = SSLSocket_error("SSL_read - getdata", ssl, socket, rc);
 		if (rc != SSL_ERROR_WANT_READ && rc != SSL_ERROR_WANT_WRITE)
@@ -728,9 +728,9 @@ int SSLSocket_putdatas(SSL* ssl, int socket, char* buf0, size_t buf0len, int cou
 	int sslerror;
 	FUNC_ENTRY;
-	iovec.iov_len = buf0len;
+	iovec.iov_len = (ULONG)buf0len;
 	for (i = 0; i < count; i++)
-		iovec.iov_len += buflens[i];
+		iovec.iov_len += (ULONG)buflens[i];
 	ptr = iovec.iov_base = (char *)malloc(iovec.iov_len);  
 	memcpy(ptr, buf0, buf0len);

--- a/src/SSLSocket.h
+++ b/src/SSLSocket.h
@@ -34,7 +34,7 @@ int SSLSocket_initialize();
 void SSLSocket_terminate();
 int SSLSocket_setSocketForSSL(networkHandles* net, MQTTClient_SSLOptions* opts);
 int SSLSocket_getch(SSL* ssl, int socket, char* c);
-char *SSLSocket_getdata(SSL* ssl, int socket, int bytes, int* actual_len);
+char *SSLSocket_getdata(SSL* ssl, int socket, size_t bytes, size_t* actual_len);
 int SSLSocket_close(networkHandles* net);
 int SSLSocket_putdatas(SSL* ssl, int socket, char* buf0, size_t buf0len, int count, char** buffers, size_t* buflens, int* frees);

--- a/src/Socket.c
+++ b/src/Socket.c
@@ -328,7 +328,7 @@ exit:
 *  @param actual_len the actual number of bytes read
 *  @return completion code
 */
-char *Socket_getdata(int socket, int bytes, int* actual_len)
+char *Socket_getdata(int socket, size_t bytes, size_t* actual_len)
 {
 	int rc;
 	char* buf;
@@ -342,7 +342,7 @@ char *Socket_getdata(int socket, int bytes, int* actual_len)
 	buf = SocketBuffer_getQueuedData(socket, bytes, actual_len);
-	if ((rc = recv(socket, buf + (*actual_len), (size_t)(bytes - (*actual_len)), 0)) == SOCKET_ERROR)
+	if ((rc = recv(socket, buf + (*actual_len), (int)(bytes - (*actual_len)), 0)) == SOCKET_ERROR)
 	{
 		rc = Socket_error("recv - getdata", socket);
 		if (rc != EAGAIN && rc != EWOULDBLOCK)
@@ -438,7 +438,8 @@ int Socket_putdatas(int socket, char* buf0, size_t buf0len, int count, char** bu
 	unsigned long bytes = 0L;
 	iobuf iovecs[5];
 	int frees1[5];
-	int rc = TCPSOCKET_INTERRUPTED, i, total = buf0len;
+	int rc = TCPSOCKET_INTERRUPTED, i;
+	size_t total = buf0len;
 	FUNC_ENTRY;
 	if (!Socket_noPendingWrites(socket))
@@ -452,12 +453,12 @@ int Socket_putdatas(int socket, char* buf0, size_t buf0len, int count, char** bu
 		total += buflens[i];
 	iovecs[0].iov_base = buf0;
-	iovecs[0].iov_len = buf0len;
+	iovecs[0].iov_len = (ULONG)buf0len;
 	frees1[0] = 1;
 	for (i = 0; i < count; i++)
 	{
 		iovecs[i+1].iov_base = buffers[i];
-		iovecs[i+1].iov_len = buflens[i];
+		iovecs[i+1].iov_len = (ULONG)buflens[i];
 		frees1[i+1] = frees[i];
 	}
@@ -649,7 +650,7 @@ int Socket_new(char* addr, int port, int* sock)
 		Log(LOG_ERROR, -1, "%s is not a valid IP address", addr);
 	else
 	{
-		*sock =	socket(family, type, 0);
+		*sock =	(int)socket(family, type, 0);
 		if (*sock == INVALID_SOCKET)
 			rc = Socket_error("socket", *sock);
 		else
@@ -733,8 +734,8 @@ int Socket_continueWrite(int socket)
 		else if (pw->bytes < curbuflen + pw->iovecs[i].iov_len)
 		{ /* if previously written length is in the middle of the buffer we are currently looking at,
 				add some of the buffer */
-			int offset = pw->bytes - curbuflen;
+			size_t offset = pw->bytes - curbuflen;
-			iovecs1[++curbuf].iov_len = pw->iovecs[i].iov_len - offset;
+			iovecs1[++curbuf].iov_len = pw->iovecs[i].iov_len - (ULONG)offset;
 			iovecs1[curbuf].iov_base = pw->iovecs[i].iov_base + offset;
 			break;
 		}

--- a/src/Socket.h
+++ b/src/Socket.h
@@ -51,6 +51,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <sys/uio.h>
+#define ULONG size_t
 #endif
 /** socket operation completed successfully */
@@ -114,7 +115,7 @@ void Socket_outInitialize(void);
 void Socket_outTerminate(void);
 int Socket_getReadySocket(int more_work, struct timeval *tp);
 int Socket_getch(int socket, char* c);
-char *Socket_getdata(int socket, int bytes, int* actual_len);
+char *Socket_getdata(int socket, size_t bytes, size_t* actual_len);
 int Socket_putdatas(int socket, char* buf0, size_t buf0len, int count, char** buffers, size_t* buflens, int* frees);
 void Socket_close(int socket);
 int Socket_new(char* addr, int port, int* socket);

--- a/src/SocketBuffer.c
+++ b/src/SocketBuffer.c
@@ -73,7 +73,8 @@ void SocketBuffer_newDefQ(void)
 	def_queue = malloc(sizeof(socket_queue));
 	def_queue->buflen = 1000;
 	def_queue->buf = malloc(def_queue->buflen);
-	def_queue->socket = def_queue->index = def_queue->buflen = def_queue->datalen = 0;
+	def_queue->socket = def_queue->index = 0;
+	def_queue->buflen = def_queue->datalen = 0;
 }
@@ -130,7 +131,10 @@ void SocketBuffer_cleanup(int socket)
 		ListRemove(queues, queues->current->content);
 	}
 	if (def_queue->socket == socket)
-		def_queue->socket = def_queue->index = def_queue->headerlen = def_queue->datalen = 0;
+	{
+		def_queue->socket = def_queue->index = 0;
+		def_queue->headerlen = def_queue->datalen = 0;
+	}
 	FUNC_EXIT;
 }
@@ -142,7 +146,7 @@ void SocketBuffer_cleanup(int socket)
 * @param actual_len the actual length returned
 * @return the actual data
 */
-char* SocketBuffer_getQueuedData(int socket, int bytes, int* actual_len)
+char* SocketBuffer_getQueuedData(int socket, size_t bytes, size_t* actual_len)
 {
 	socket_queue* queue = NULL;
@@ -215,7 +219,7 @@ exit:
 * @param socket the socket to get queued data for
 * @param actual_len the actual length of data that was read
 */
-void SocketBuffer_interrupted(int socket, int actual_len)
+void SocketBuffer_interrupted(int socket, size_t actual_len)
 {
 	socket_queue* queue = NULL;
@@ -249,7 +253,8 @@ char* SocketBuffer_complete(int socket)
 		def_queue = queue;
 		ListDetach(queues, queue);
 	}
-	def_queue->socket = def_queue->index = def_queue->headerlen = def_queue->datalen = 0;
+	def_queue->socket = def_queue->index = 0;
+	def_queue->headerlen = def_queue->datalen = 0;
 	FUNC_EXIT;
 	return def_queue->buf;
 }
@@ -271,7 +276,8 @@ void SocketBuffer_queueChar(int socket, char c)
 	else if (def_queue->socket == 0)
 	{
 		def_queue->socket = socket;
-		def_queue->index = def_queue->datalen = 0;
+		def_queue->index = 0;
+		def_queue->datalen = 0;
 	}
 	else if (def_queue->socket != socket)
 	{
@@ -302,9 +308,9 @@ void SocketBuffer_queueChar(int socket, char c)
 * @param bytes actual data length that was written
 */
 #if defined(OPENSSL)
-void SocketBuffer_pendingWrite(int socket, SSL* ssl, int count, iobuf* iovecs, int* frees, int total, int bytes)
+void SocketBuffer_pendingWrite(int socket, SSL* ssl, int count, iobuf* iovecs, int* frees, size_t total, size_t bytes)
 #else
-void SocketBuffer_pendingWrite(int socket, int count, iobuf* iovecs, int* frees, int total, int bytes)
+void SocketBuffer_pendingWrite(int socket, int count, iobuf* iovecs, int* frees, size_t total, size_t bytes)
 #endif
 {
 	int i = 0;

--- a/src/SocketBuffer.h
+++ b/src/SocketBuffer.h
@@ -37,20 +37,22 @@
 typedef struct
 {
 	int socket;
-	int index, headerlen;
+	unsigned int index;
+	size_t headerlen;
 	char fixed_header[5];	/**< header plus up to 4 length bytes */
-	int buflen, 			/**< total length of the buffer */
+	size_t buflen, 			/**< total length of the buffer */
 		datalen; 			/**< current length of data in buf */
 	char* buf;
 } socket_queue;
 typedef struct
 {
-	int socket, total, count;
+	int socket, count;
+	size_t total;
 #if defined(OPENSSL)
 	SSL* ssl;
 #endif
-	unsigned long bytes;
+	size_t bytes;
 	iobuf iovecs[5];
 	int frees[5];
 } pending_writes;
@@ -64,16 +66,16 @@ typedef struct
 void SocketBuffer_initialize(void);
 void SocketBuffer_terminate(void);
 void SocketBuffer_cleanup(int socket);
-char* SocketBuffer_getQueuedData(int socket, int bytes, int* actual_len);
+char* SocketBuffer_getQueuedData(int socket, size_t bytes, size_t* actual_len);
 int SocketBuffer_getQueuedChar(int socket, char* c);
-void SocketBuffer_interrupted(int socket, int actual_len);
+void SocketBuffer_interrupted(int socket, size_t actual_len);
 char* SocketBuffer_complete(int socket);
 void SocketBuffer_queueChar(int socket, char c);
 #if defined(OPENSSL)
-void SocketBuffer_pendingWrite(int socket, SSL* ssl, int count, iobuf* iovecs, int* frees, int total, int bytes);
+void SocketBuffer_pendingWrite(int socket, SSL* ssl, int count, iobuf* iovecs, int* frees, size_t total, size_t bytes);
 #else
-void SocketBuffer_pendingWrite(int socket, int count, iobuf* iovecs, int* frees, int total, int bytes);
+void SocketBuffer_pendingWrite(int socket, int count, iobuf* iovecs, int* frees, size_t total, size_t bytes);
 #endif
 pending_writes* SocketBuffer_getWrite(int socket);
 int SocketBuffer_writeComplete(int socket);

--- a/src/Tree.c
+++ b/src/Tree.c
@@ -189,7 +189,7 @@ void TreeBalanceAfterAdd(Tree* aTree, Node* curnode, int index)
 * @param content the list item content itself
 * @param size the size of the element
 */
-void* TreeAddByIndex(Tree* aTree, void* content, int size, int index)
+void* TreeAddByIndex(Tree* aTree, void* content, size_t size, int index)
 {
 	Node* curparent = NULL;
 	Node* curnode = aTree->index[index].root;
@@ -249,7 +249,7 @@ void* TreeAddByIndex(Tree* aTree, void* content, int size, int index)
 }
-void* TreeAdd(Tree* aTree, void* content, int size)
+void* TreeAdd(Tree* aTree, void* content, size_t size)
 {
 	void* rc = NULL;
 	int i;
@@ -399,7 +399,7 @@ void* TreeRemoveNodeIndex(Tree* aTree, Node* curnode, int index)
 {
 	Node* redundant = curnode;
 	Node* curchild = NULL;
-	int size = curnode->size;
+	size_t size = curnode->size;
 	void* content = curnode->content;
 	/* if the node to remove has 0 or 1 children, it can be removed without involving another node */

--- a/src/Tree.h
+++ b/src/Tree.h
@@ -18,6 +18,8 @@
 #if !defined(TREE_H)
 #define TREE_H
+#include <stdlib.h> // for size_t definition
 /*BE
 defm defTree(T) // macro to define a tree
@@ -63,7 +65,7 @@ typedef struct NodeStruct
 	struct NodeStruct *parent,   /**< pointer to parent tree node, in case we need it */
 					  *child[2]; /**< pointers to child tree nodes 0 = left, 1 = right */
 	void* content;				 /**< pointer to element content */
-	int size;					 /**< size of content */
+	size_t size;					 /**< size of content */
 	unsigned int red : 1;
 } Node;
@@ -78,9 +80,9 @@ typedef struct
 		Node *root;	/**< root node pointer */
 		int (*compare)(void*, void*, int); /**< comparison function */
 	} index[2];
-	int indexes, /**< no of indexes into tree */
+	int indexes,  /**< no of indexes into tree */
-		count,  /**< no of items */
+		count;    /**< no of items */
-		size;  /**< heap storage used */
+	size_t size;  /**< heap storage used */
 	unsigned int heap_tracking : 1; /**< switch on heap tracking for this tree? */
 	unsigned int allow_duplicates : 1; /**< switch to allow duplicate entries */
 } Tree;
@@ -90,7 +92,7 @@ Tree* TreeInitialize(int(*compare)(void*, void*, int));
 void TreeInitializeNoMalloc(Tree* aTree, int(*compare)(void*, void*, int));
 void TreeAddIndex(Tree* aTree, int(*compare)(void*, void*, int));
-void* TreeAdd(Tree* aTree, void* content, int size);
+void* TreeAdd(Tree* aTree, void* content, size_t size);
 void* TreeRemove(Tree* aTree, void* content);

--- a/src/utf-8.c
+++ b/src/utf-8.c
@@ -153,7 +153,7 @@ int UTF8_validateString(const char* string)
 	int rc = 0;
 	FUNC_ENTRY;
-	rc = UTF8_validate(strlen(string), string);
+	rc = UTF8_validate((int)strlen(string), string);
 	FUNC_EXIT_RC(rc);
 	return rc;
 }