diff --git a/indra/mac_updater/AutoUpdater.nib/classes.nib b/indra/mac_updater/AutoUpdater.nib/classes.nib
new file mode 100644
index 0000000000000000000000000000000000000000..ea58db1189aa4aa4b8112941abcc5b3013db1001
Binary files /dev/null and b/indra/mac_updater/AutoUpdater.nib/classes.nib differ
diff --git a/indra/mac_updater/AutoUpdater.nib/info.nib b/indra/mac_updater/AutoUpdater.nib/info.nib
new file mode 100644
index 0000000000000000000000000000000000000000..a49a92385bb55b21f4c5b736ecaadc09127d04ae
Binary files /dev/null and b/indra/mac_updater/AutoUpdater.nib/info.nib differ
diff --git a/indra/mac_updater/AutoUpdater.nib/objects.xib b/indra/mac_updater/AutoUpdater.nib/objects.xib
new file mode 100644
index 0000000000000000000000000000000000000000..310411b7113c96e28f07f317d9e22b0fcf531ef0
--- /dev/null
+++ b/indra/mac_updater/AutoUpdater.nib/objects.xib
@@ -0,0 +1,56 @@
+<?xml version="1.0" standalone="yes"?>
+<object class="NSIBObjectData">
+  <string name="targetFramework">IBCarbonFramework</string>
+  <object name="rootObject" class="NSCustomObject" id="1">
+    <string name="customClass">NSApplication</string>
+  </object>
+  <array count="5" name="allObjects">
+    <object class="IBCarbonWindow" id="166">
+      <string name="windowRect">405 222 533 663 </string>
+      <string name="title">Second Life Updater</string>
+      <object name="rootControl" class="IBCarbonRootControl" id="167">
+        <string name="bounds">0 0 128 441 </string>
+        <array count="3" name="subviews">
+          <object class="IBCarbonStaticText" id="181">
+            <string name="bounds">20 20 44 421 </string>
+            <ostype name="controlSignature">what</ostype>
+            <string name="title">Initializing…</string>
+          </object>
+          <object class="IBCarbonButton" id="183">
+            <string name="bounds">88 351 108 421 </string>
+            <string name="title">Cancel</string>
+            <ostype name="command">not!</ostype>
+            <int name="buttonType">2</int>
+          </object>
+          <object class="IBCarbonProgressBar" id="193">
+            <string name="bounds">51 19 70 422 </string>
+            <ostype name="controlSignature">prog</ostype>
+            <int name="initialValue">50</int>
+          </object>
+        </array>
+      </object>
+      <boolean name="isResizable">FALSE</boolean>
+      <int name="carbonWindowClass">2</int>
+      <int name="themeBrush">3</int>
+      <int name="windowPosition">7</int>
+    </object>
+    <reference idRef="167"/>
+    <reference idRef="181"/>
+    <reference idRef="183"/>
+    <reference idRef="193"/>
+  </array>
+  <array count="5" name="allParents">
+    <reference idRef="1"/>
+    <reference idRef="166"/>
+    <reference idRef="167"/>
+    <reference idRef="167"/>
+    <reference idRef="167"/>
+  </array>
+  <dictionary count="2" name="nameTable">
+    <string>File&apos;s Owner</string>
+    <reference idRef="1"/>
+    <string>Updater</string>
+    <reference idRef="166"/>
+  </dictionary>
+  <unsigned_int name="nextObjectID">194</unsigned_int>
+</object>
diff --git a/indra/mac_updater/CMakeLists.txt b/indra/mac_updater/CMakeLists.txt
index 7382e912bfc45e92cf74cfd4adb26904a5b06840..00dcedecaa90560272fabefa6d52e599db9aaff9 100644
--- a/indra/mac_updater/CMakeLists.txt
+++ b/indra/mac_updater/CMakeLists.txt
@@ -18,14 +18,10 @@ include_directories(
     )
 
 set(mac_updater_SOURCE_FILES
-    main.m
-    MacUpdaterAppDelegate.mm
     mac_updater.cpp
     )
 
 set(mac_updater_HEADER_FILES
-    MacUpdaterAppDelegate.h
-    mac_updater.h
     CMakeLists.txt
     )
 
@@ -36,7 +32,7 @@ list(APPEND mac_updater_SOURCE_FILES ${mac_updater_HEADER_FILES})
 
 
 set(mac_updater_RESOURCE_FILES
-  AutoUpdater.nib
+  AutoUpdater.nib/
   )
 set_source_files_properties(
   ${mac_updater_RESOURCE_FILES}
@@ -52,19 +48,13 @@ add_executable(mac-updater
 
 set_target_properties(mac-updater
   PROPERTIES
-  MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/MacUpdater-Info.plist
+  MACOSX_BUNDLE_INFO_PLIST ${CMAKE_CURRENT_SOURCE_DIR}/Info.plist
   )
 
-find_library(COCOA_LIBRARY Cocoa)
-find_library(IOKIT_LIBRARY IOKit)
-
 target_link_libraries(mac-updater
     ${LLVFS_LIBRARIES}
     ${OPENSSL_LIBRARIES}
     ${CRYPTO_LIBRARIES}
-    ${COCOA_LIBRARIES}
-    ${BOOST_FILESYSTEM_LIBRARY}
-    ${IOKIT_LIBRARY}
     ${CURL_LIBRARIES}
     ${CARES_LIBRARIES}
     ${LLCOMMON_LIBRARIES}
@@ -72,16 +62,10 @@ target_link_libraries(mac-updater
 
 add_custom_command(
   TARGET mac-updater POST_BUILD
-#  COMMAND ${CMAKE_COMMAND}
-#  ARGS
-#    -E
-#    copy_directory
-#    ${CMAKE_CURRENT_SOURCE_DIR}/AutoUpdater.nib
-#    ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/mac-updater.app/Contents/Resources/AutoUpdater.nib
   COMMAND ${CMAKE_COMMAND}
   ARGS
     -E
-    copy
+    copy_directory
     ${CMAKE_CURRENT_SOURCE_DIR}/AutoUpdater.nib
     ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/mac-updater.app/Contents/Resources/AutoUpdater.nib
   )
diff --git a/indra/mac_updater/mac_updater.cpp b/indra/mac_updater/mac_updater.cpp
index bc9fec355838e32a39456ee176ba9bab33f22921..aa45c5d23f25e685ba6f2a352e53cfa13aec0836 100644
--- a/indra/mac_updater/mac_updater.cpp
+++ b/indra/mac_updater/mac_updater.cpp
@@ -27,8 +27,6 @@
 #include "linden_common.h"
 
 #include <boost/format.hpp>
-#include <boost/filesystem/operations.hpp>
-#include <boost/filesystem.hpp>
 
 #include <libgen.h>
 #include <sys/types.h>
@@ -36,6 +34,7 @@
 #include <unistd.h>
 
 #include <curl/curl.h>
+#include <pthread.h>
 
 #include "llerror.h"
 #include "lltimer.h"
@@ -44,552 +43,1177 @@
 
 #include "llstring.h"
 
+#include <Carbon/Carbon.h>
+
 #include "llerrorcontrol.h"
-#include "mac_updater.h"
-#include <sstream>
+
+enum
+{
+	kEventClassCustom = 'Cust',
+	kEventCustomProgress = 'Prog',
+	kEventParamCustomCurValue = 'Cur ',
+	kEventParamCustomMaxValue = 'Max ',
+	kEventParamCustomText = 'Text',
+	kEventCustomDone = 'Done',
+};
+
+WindowRef gWindow = NULL;
+EventHandlerRef gEventHandler = NULL;
+OSStatus gFailure = noErr;
+Boolean gCancelled = false;
+
+const char *gUpdateURL;
+const char *gProductName;
+const char *gBundleID;
+const char *gDmgFile;
+const char *gMarkerPath;
+
+void *updatethreadproc(void*);
 
 pthread_t updatethread;
 
-LLMacUpdater* LLMacUpdater::sInstance = NULL;
+OSStatus setProgress(int cur, int max)
+{
+	OSStatus err;
+	ControlRef progressBar = NULL;
+	ControlID id;
+
+	id.signature = 'prog';
+	id.id = 0;
+
+	err = GetControlByID(gWindow, &id, &progressBar);
+	if(err == noErr)
+	{
+		Boolean indeterminate;
+		
+		if(max == 0)
+		{
+			indeterminate = true;
+			err = SetControlData(progressBar, kControlEntireControl, kControlProgressBarIndeterminateTag, sizeof(Boolean), (Ptr)&indeterminate);
+		}
+		else
+		{
+			double percentage = (double)cur / (double)max;
+			SetControlMinimum(progressBar, 0);
+			SetControlMaximum(progressBar, 100);
+			SetControlValue(progressBar, (SInt16)(percentage * 100));
+
+			indeterminate = false;
+			err = SetControlData(progressBar, kControlEntireControl, kControlProgressBarIndeterminateTag, sizeof(Boolean), (Ptr)&indeterminate);
+
+			Draw1Control(progressBar);
+		}
+	}
+
+	return(err);
+}
+
+OSStatus setProgressText(CFStringRef text)
+{
+	OSStatus err;
+	ControlRef progressText = NULL;
+	ControlID id;
+
+	id.signature = 'what';
+	id.id = 0;
+
+	err = GetControlByID(gWindow, &id, &progressText);
+	if(err == noErr)
+	{
+		err = SetControlData(progressText, kControlEntireControl, kControlStaticTextCFStringTag, sizeof(CFStringRef), (Ptr)&text);
+		Draw1Control(progressText);
+	}
+
+	return(err);
+}
+
+OSStatus sendProgress(long cur, long max, CFStringRef text = NULL)
+{
+	OSStatus result;
+	EventRef evt;
+	
+	result = CreateEvent( 
+			NULL,
+			kEventClassCustom, 
+			kEventCustomProgress,
+			0, 
+			kEventAttributeNone, 
+			&evt);
+	
+	// This event needs to be targeted at the window so it goes to the window's handler.
+	if(result == noErr)
+	{
+		EventTargetRef target = GetWindowEventTarget(gWindow);
+		result = SetEventParameter (
+			evt,
+			kEventParamPostTarget,
+			typeEventTargetRef,
+			sizeof(target),
+			&target);
+	}
+
+	if(result == noErr)
+	{
+		result = SetEventParameter (
+			evt,
+			kEventParamCustomCurValue,
+			typeLongInteger,
+			sizeof(cur),
+			&cur);
+	}
+
+	if(result == noErr)
+	{
+		result = SetEventParameter (
+			evt,
+			kEventParamCustomMaxValue,
+			typeLongInteger,
+			sizeof(max),
+			&max);
+	}
+	
+	if(result == noErr)
+	{
+		if(text != NULL)
+		{
+			result = SetEventParameter (
+				evt,
+				kEventParamCustomText,
+				typeCFStringRef,
+				sizeof(text),
+				&text);
+		}
+	}
+	
+	if(result == noErr)
+	{
+		// Send the event
+		PostEventToQueue(
+			GetMainEventQueue(),
+			evt,
+			kEventPriorityStandard);
+
+	}
+	
+	return(result);
+}
+
+OSStatus sendDone(void)
+{
+	OSStatus result;
+	EventRef evt;
+	
+	result = CreateEvent( 
+			NULL,
+			kEventClassCustom, 
+			kEventCustomDone,
+			0, 
+			kEventAttributeNone, 
+			&evt);
+	
+	// This event needs to be targeted at the window so it goes to the window's handler.
+	if(result == noErr)
+	{
+		EventTargetRef target = GetWindowEventTarget(gWindow);
+		result = SetEventParameter (
+			evt,
+			kEventParamPostTarget,
+			typeEventTargetRef,
+			sizeof(target),
+			&target);
+	}
+
+	if(result == noErr)
+	{
+		// Send the event
+		PostEventToQueue(
+			GetMainEventQueue(),
+			evt,
+			kEventPriorityStandard);
 
-LLMacUpdater::LLMacUpdater():
-                mUpdateURL   (NULL),
-                mProductName (NULL),
-                mBundleID    (NULL),
-                mDmgFile     (NULL),
-                mMarkerPath  (NULL)
+	}
+	
+	return(result);
+}
+
+OSStatus dialogHandler(EventHandlerCallRef handler, EventRef event, void *userdata)
 {
-    sInstance    = this;
+	OSStatus result = eventNotHandledErr;
+	OSStatus err;
+	UInt32 evtClass = GetEventClass(event);
+	UInt32 evtKind = GetEventKind(event);
+	
+	if((evtClass == kEventClassCommand) && (evtKind == kEventCommandProcess))
+	{
+		HICommand cmd;
+		err = GetEventParameter(event, kEventParamDirectObject, typeHICommand, NULL, sizeof(cmd), NULL, &cmd);
+		
+		if(err == noErr)
+		{
+			switch(cmd.commandID)
+			{				
+				case kHICommandCancel:
+					gCancelled = true;
+//					QuitAppModalLoopForWindow(gWindow);
+					result = noErr;
+				break;
+			}
+		}
+	}
+	else if((evtClass == kEventClassCustom) && (evtKind == kEventCustomProgress))
+	{
+		// Request to update the progress dialog
+		long cur = 0;
+		long max = 0;
+		CFStringRef text = NULL;
+		(void) GetEventParameter(event, kEventParamCustomCurValue, typeLongInteger, NULL, sizeof(cur), NULL, &cur);
+		(void) GetEventParameter(event, kEventParamCustomMaxValue, typeLongInteger, NULL, sizeof(max), NULL, &max);
+		(void) GetEventParameter(event, kEventParamCustomText, typeCFStringRef, NULL, sizeof(text), NULL, &text);
+		
+		err = setProgress(cur, max);
+		if(err == noErr)
+		{
+			if(text != NULL)
+			{
+				setProgressText(text);
+			}
+		}
+		
+		result = noErr;
+	}
+	else if((evtClass == kEventClassCustom) && (evtKind == kEventCustomDone))
+	{
+		// We're done.  Exit the modal loop.
+		QuitAppModalLoopForWindow(gWindow);
+		result = noErr;
+	}
+	
+	return(result);
 }
 
-void LLMacUpdater::doUpdate()
+#if 0
+size_t curl_download_callback(void *data, size_t size, size_t nmemb,
+										  void *user_data)
 {
-  	// We assume that all the logs we're looking for reside on the current drive
+	S32 bytes = size * nmemb;
+	char *cdata = (char *) data;
+	for (int i =0; i < bytes; i += 1)
+	{
+		gServerResponse.append(cdata[i]);
+	}
+	return bytes;
+}
+#endif
+
+int curl_progress_callback_func(void *clientp,
+							  double dltotal,
+							  double dlnow,
+							  double ultotal,
+							  double ulnow)
+{
+	int max = (int)(dltotal / 1024.0);
+	int cur = (int)(dlnow / 1024.0);
+	sendProgress(cur, max);
+	
+	if(gCancelled)
+		return(1);
+
+	return(0);
+}
+
+int parse_args(int argc, char **argv)
+{
+	int j;
+
+	for (j = 1; j < argc; j++) 
+	{
+		if ((!strcmp(argv[j], "-url")) && (++j < argc)) 
+		{
+			gUpdateURL = argv[j];
+		}
+		else if ((!strcmp(argv[j], "-name")) && (++j < argc)) 
+		{
+			gProductName = argv[j];
+		}
+		else if ((!strcmp(argv[j], "-bundleid")) && (++j < argc)) 
+		{
+			gBundleID = argv[j];
+		}
+		else if ((!strcmp(argv[j], "-dmg")) && (++j < argc)) 
+		{
+			gDmgFile = argv[j];
+		}
+		else if ((!strcmp(argv[j], "-marker")) && (++j < argc)) 
+		{
+			gMarkerPath = argv[j];;
+		}
+	}
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	// We assume that all the logs we're looking for reside on the current drive
 	gDirUtilp->initAppDirs("SecondLife");
-    
+
 	LLError::initForApplication( gDirUtilp->getExpandedFilename(LL_PATH_APP_SETTINGS, ""));
-    
+
 	// Rename current log file to ".old"
 	std::string old_log_file = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, "updater.log.old");
 	std::string log_file = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, "updater.log");
 	LLFile::rename(log_file.c_str(), old_log_file.c_str());
-    
+
 	// Set the log file to updater.log
 	LLError::logToFile(log_file);
-    
-	if ((mUpdateURL == NULL) && (mDmgFile == NULL))
+
+	/////////////////////////////////////////
+	//
+	// Process command line arguments
+	//
+	gUpdateURL  = NULL;
+	gProductName = NULL;
+	gBundleID = NULL;
+	gDmgFile = NULL;
+	gMarkerPath = NULL;
+	parse_args(argc, argv);
+	if ((gUpdateURL == NULL) && (gDmgFile == NULL))
 	{
 		llinfos << "Usage: mac_updater -url <url> | -dmg <dmg file> [-name <product_name>] [-program <program_name>]" << llendl;
 		exit(1);
 	}
 	else
 	{
-		llinfos << "Update url is: " << mUpdateURL << llendl;
-		if (mProductName)
+		llinfos << "Update url is: " << gUpdateURL << llendl;
+		if (gProductName)
 		{
-			llinfos << "Product name is: " << *mProductName << llendl;
+			llinfos << "Product name is: " << gProductName << llendl;
 		}
 		else
 		{
-			mProductName = new std::string("Second Life");
+			gProductName = "Second Life";
 		}
-		if (mBundleID)
+		if (gBundleID)
 		{
-			llinfos << "Bundle ID is: " << *mBundleID << llendl;
+			llinfos << "Bundle ID is: " << gBundleID << llendl;
 		}
 		else
 		{
-			mBundleID = new std::string("com.secondlife.indra.viewer");
+			gBundleID = "com.secondlife.indra.viewer";
 		}
 	}
 	
-	llinfos << "Starting " << *mProductName << " Updater" << llendl;
-    
-    pthread_create(&updatethread, 
-                   NULL,
-                   &sUpdatethreadproc, 
-                   NULL);
-    
-    
+	llinfos << "Starting " << gProductName << " Updater" << llendl;
+
+	// Real UI...
+	OSStatus err;
+	IBNibRef nib = NULL;
+	
+	err = CreateNibReference(CFSTR("AutoUpdater"), &nib);
+
+	char windowTitle[MAX_PATH];		/* Flawfinder: ignore */
+	snprintf(windowTitle, sizeof(windowTitle), "%s Updater", gProductName);		
+	CFStringRef windowTitleRef = NULL;
+	windowTitleRef = CFStringCreateWithCString(NULL, windowTitle, kCFStringEncodingUTF8);
+	
+	if(err == noErr)
+	{
+		err = CreateWindowFromNib(nib, CFSTR("Updater"), &gWindow);
+	}
+
+	if (err == noErr)
+	{
+		err = SetWindowTitleWithCFString(gWindow, windowTitleRef);	
+	}
+	CFRelease(windowTitleRef);
+
+	if(err == noErr)
+	{
+		// Set up an event handler for the window.
+		EventTypeSpec handlerEvents[] = 
+		{
+			{ kEventClassCommand, kEventCommandProcess },
+			{ kEventClassCustom, kEventCustomProgress },
+			{ kEventClassCustom, kEventCustomDone }
+		};
+		InstallStandardEventHandler(GetWindowEventTarget(gWindow));
+		InstallWindowEventHandler(
+				gWindow, 
+				NewEventHandlerUPP(dialogHandler), 
+				GetEventTypeCount (handlerEvents), 
+				handlerEvents, 
+				0, 
+				&gEventHandler);
+	}
+	
+	if(err == noErr)
+	{
+		ShowWindow(gWindow);
+		SelectWindow(gWindow);
+	}
+		
+	if(err == noErr)
+	{
+		pthread_create(&updatethread, 
+                         NULL,
+                         &updatethreadproc, 
+                         NULL);
+						 
+	}
+	
+	if(err == noErr)
+	{
+		RunAppModalLoopForWindow(gWindow);
+	}
+
 	void *threadresult;
-    
+
 	pthread_join(updatethread, &threadresult);
-    
-	if(gCancelled || gFailure)
+
+	if(!gCancelled && (gFailure != noErr))
 	{
-        sendStopAlert();
-        
-		if(mMarkerPath != 0)
+		// Something went wrong.  Since we always just tell the user to download a new version, we don't really care what.
+		AlertStdCFStringAlertParamRec params;
+		SInt16 retval_mac = 1;
+		DialogRef alert = NULL;
+		OSStatus err;
+
+		params.version = kStdCFStringAlertVersionOne;
+		params.movable = false;
+		params.helpButton = false;
+		params.defaultText = (CFStringRef)kAlertDefaultOKText;
+		params.cancelText = 0;
+		params.otherText = 0;
+		params.defaultButton = 1;
+		params.cancelButton = 0;
+		params.position = kWindowDefaultPosition;
+		params.flags = 0;
+
+		err = CreateStandardAlert(
+				kAlertStopAlert,
+				CFSTR("Error"),
+				CFSTR("An error occurred while updating Second Life.  Please download the latest version from www.secondlife.com."),
+				&params,
+				&alert);
+		
+		if(err == noErr)
+		{
+			err = RunStandardAlert(
+					alert,
+					NULL,
+					&retval_mac);
+		}
+		
+		if(gMarkerPath != 0)
 		{
 			// Create a install fail marker that can be used by the viewer to
 			// detect install problems.
-			std::ofstream stream(mMarkerPath->c_str());
+			std::ofstream stream(gMarkerPath);
 			if(stream) stream << -1;
 		}
 		exit(-1);
 	} else {
 		exit(0);
 	}
+
+	if(gWindow != NULL)
+	{
+		DisposeWindow(gWindow);
+	}
 	
-	return;  
+	if(nib != NULL)
+	{
+		DisposeNibReference(nib);
+	}
+	
+	return 0;
 }
 
-//SPATTERS TODO this should be moved to lldir_mac.cpp
-const std::string LLMacUpdater::walkParents( signed int depth, const std::string& childpath )
+bool isDirWritable(FSRef &dir)
 {
-    boost::filesystem::path  fullpath(childpath.c_str());
-    
-    while (depth > 0 && fullpath.has_parent_path())
-    {
-        fullpath = boost::filesystem::path(fullpath.parent_path());
-        --depth;
-    }
-    
-    return fullpath.string();
-}
+	bool result = false;
+	
+	// Test for a writable directory by creating a directory, then deleting it again.
+	// This is kinda lame, but will pretty much always give the right answer.
+	
+	OSStatus err = noErr;
+	char temp[PATH_MAX] = "";		/* Flawfinder: ignore */
 
-//#if 0
-//size_t curl_download_callback(void *data, size_t size, size_t nmemb,
-//										  void *user_data)
-//{
-//	S32 bytes = size * nmemb;
-//	char *cdata = (char *) data;
-//	for (int i =0; i < bytes; i += 1)
-//	{
-//		gServerResponse.append(cdata[i]);
-//	}
-//	return bytes;
-//}
-//#endif
+	err = FSRefMakePath(&dir, (UInt8*)temp, sizeof(temp));
 
-int curl_progress_callback_func(void *clientp,
-							  double dltotal,
-							  double dlnow,
-							  double ultotal,
-							  double ulnow)
-{
-	int max = (int)(dltotal / 1024.0);
-	int cur = (int)(dlnow / 1024.0);
-	setProgress(cur, max);
-	
-	if(gCancelled)
-		return(1);
+	if(err == noErr)
+	{
+		strncat(temp, "/.test_XXXXXX", (sizeof(temp) - strlen(temp)) - 1);
+		
+		if(mkdtemp(temp) != NULL)
+		{
+			// We were able to make the directory.  This means the directory is writable.
+			result = true;
+			
+			// Clean up.
+			rmdir(temp);
+		}
+	}
 
-	return(0);
-}
+#if 0
+	// This seemed like a good idea, but won't tell us if we're on a volume mounted read-only.
+	UInt8 perm;
+	err = FSGetUserPrivilegesPermissions(&targetParentRef, &perm, NULL);
+	if(err == noErr)
+	{
+		if(perm & kioACUserNoMakeChangesMask)
+		{
+			// Parent directory isn't writable.
+			llinfos << "Target parent directory not writable." << llendl;
+			err = -1;
+			replacingTarget = false;
+		}
+	}
+#endif
 
-bool LLMacUpdater::isApplication(const std::string& app_str)
-{
-    return  !(bool) app_str.compare( app_str.length()-4, 4, ".app");
+	return result;
 }
-                                     
-// Search through the directory specified by 'parent' for an item that appears to be a Second Life viewer.
-bool LLMacUpdater::findAppBundleOnDiskImage(const boost::filesystem::path& dir_path,
-                              boost::filesystem::path& path_found)
+
+static std::string HFSUniStr255_to_utf8str(const HFSUniStr255* src)
 {
-    if ( !boost::filesystem::exists( dir_path ) ) return false;
-
-    boost::filesystem::directory_iterator end_itr; 
-        
-    for ( boost::filesystem::directory_iterator itr( dir_path );
-         itr != end_itr;
-         ++itr )
-    {
-        if ( boost::filesystem::is_directory(itr->status()) )
-        {
-            std::string dir_name = itr->path().string();
-            if ( isApplication(dir_name) ) 
-            {
-                if(isFSRefViewerBundle(dir_name))
-                {
-                    llinfos << dir_name << " is the one" << llendl;
-
-                    path_found = itr->path();
-                    return true;
-                }
-            }
-        }
-    }
-    return false;
+	llutf16string string16((U16*)&(src->unicode), src->length);
+	std::string result = utf16str_to_utf8str(string16);
+	return result;
 }
 
-bool LLMacUpdater::verifyDirectory(const boost::filesystem::path* directory, bool isParent)
+int restoreObject(const char* aside, const char* target, const char* path, const char* object)
 {
-    bool replacingTarget;
-    std::string app_str = directory->string(); 
-        
-    if (boost::filesystem::is_directory(*directory))
-    {        
-        // This is fine, just means we're not replacing anything.
-        replacingTarget = true;
-    }
-    else
-    {
-        replacingTarget = isParent;
-    }
-    
-    //Check that the directory is writeable. 
-    if(!isDirWritable(app_str))
-    {
-        // Parent directory isn't writable.
-        llinfos << "Target directory not writable." << llendl;
-        replacingTarget = false;
-    }
-    return replacingTarget;
+	char source[PATH_MAX] = "";		/* Flawfinder: ignore */
+	char dest[PATH_MAX] = "";		/* Flawfinder: ignore */
+	snprintf(source, sizeof(source), "%s/%s/%s", aside, path, object);		
+	snprintf(dest, sizeof(dest), "%s/%s", target, path);		
+	FSRef sourceRef;
+	FSRef destRef;
+	OSStatus err;
+	err = FSPathMakeRef((UInt8 *)source, &sourceRef, NULL);
+	if(err != noErr) return false;
+	err = FSPathMakeRef((UInt8 *)dest, &destRef, NULL);
+	if(err != noErr) return false;
+
+	llinfos << "Copying " << source << " to " << dest << llendl;
+
+	err = FSCopyObjectSync(
+			&sourceRef,
+			&destRef,
+			NULL,
+			NULL,
+			kFSFileOperationOverwrite);
+
+	if(err != noErr) return false;
+	return true;
 }
-                                     
-bool LLMacUpdater::getViewerDir(boost::filesystem::path &app_dir)
+
+// Replace any mention of "Second Life" with the product name.
+void filterFile(const char* filename)
 {
-    std::string  app_dir_str;
-    
-    //Walk up 6 levels from the App Updater's installation point.
-    app_dir_str = walkParents( 6, *mApplicationPath );
-
-    app_dir = boost::filesystem::path(app_dir_str);
-    
-    //Check to see that the directory's name ends in .app  Lame but it's the best thing we have to go on.
-    //If it's not there, we're going to default to /Applications/VIEWERNAME
-    if (!isApplication(app_dir_str))
-    {
-        llinfos << "Target search failed, defaulting to /Applications/" << *mProductName << ".app." << llendl;
-        std::string newpath = std::string("/Applications/") + mProductName->c_str();
-        app_dir = boost::filesystem::path(newpath);
-    }    
-    return verifyDirectory(&app_dir);    
+	char temp[PATH_MAX] = "";		/* Flawfinder: ignore */
+	// First copy the target's version, so we can run it through sed.
+	snprintf(temp, sizeof(temp), "cp '%s' '%s.tmp'", filename, filename);		
+	system(temp);		/* Flawfinder: ignore */
+
+	// Now run it through sed.
+	snprintf(temp, sizeof(temp), 		
+			"sed 's/Second Life/%s/g' '%s.tmp' > '%s'", gProductName, filename, filename);
+	system(temp);		/* Flawfinder: ignore */
 }
 
-bool LLMacUpdater::downloadDMG(const std::string& dmgName, boost::filesystem::path* temp_dir)
+static bool isFSRefViewerBundle(FSRef *targetRef)
 {
-	LLFILE *downloadFile = NULL;
-	char temp[PATH_MAX] = "";	/* Flawfinder: ignore */
+	bool result = false;
+	CFURLRef targetURL = NULL;
+	CFBundleRef targetBundle = NULL;
+	CFStringRef targetBundleID = NULL;
+	CFStringRef sourceBundleID = NULL;
 
-    chdir(temp_dir->string().c_str());
-    
-    snprintf(temp, sizeof(temp), "SecondLife.dmg");		
-    
-    downloadFile = LLFile::fopen(temp, "wb");		/* Flawfinder: ignore */
-    if(downloadFile == NULL)
-    {
-        return false;
-    }
-    
-    bool success = false;
-    
-    CURL *curl = curl_easy_init();
-    
-    curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
-    //		curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &curl_download_callback);
-    curl_easy_setopt(curl, CURLOPT_FILE, downloadFile);
-    curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
-    curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, &curl_progress_callback_func);
-    curl_easy_setopt(curl, CURLOPT_URL,	mUpdateURL);
-    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
-    
-    sendProgress(0, 1, std::string("Downloading..."));
-    
-    CURLcode result = curl_easy_perform(curl);
-    
-    curl_easy_cleanup(curl);
-    
-    if(gCancelled)
-    {
-        llinfos << "User cancel, bailing out."<< llendl;
-        goto close_file;
-    }
-    
-    if(result != CURLE_OK)
-    {
-        llinfos << "Error " << result << " while downloading disk image."<< llendl;
-        goto close_file;
-    }
-    
-    fclose(downloadFile);
-    downloadFile = NULL;
-    
-    success = true;
-    
-close_file:
-    // Close disk image file if necessary
-	if(downloadFile != NULL)
+	targetURL = CFURLCreateFromFSRef(NULL, targetRef);
+
+	if(targetURL == NULL)
 	{
-		llinfos << "Closing download file." << llendl;
-        
-		fclose(downloadFile);
-		downloadFile = NULL;
+		llinfos << "Error creating target URL." << llendl;
 	}
-
-    return success;
-}
-                                     
-bool LLMacUpdater::doMount(const std::string& dmgName, char* deviceNode, const boost::filesystem::path& temp_dir)
-{
-	char temp[PATH_MAX] = "";	/* Flawfinder: ignore */
-    
-    sendProgress(0, 0, std::string("Mounting image..."));
-    chdir(temp_dir.string().c_str());
-    std::string mnt_dir = temp_dir.string() + std::string("/mnt");
-    LLFile::mkdir(mnt_dir.c_str(), 0700);
-    
-    // NOTE: we could add -private at the end of this command line to keep the image from showing up in the Finder,
-    //		but if our cleanup fails, this makes it much harder for the user to unmount the image.
-    std::string mountOutput;
-    boost::format cmdFormat("hdiutil attach %s -mountpoint mnt");
-    cmdFormat % dmgName;
-    FILE* mounter = popen(cmdFormat.str().c_str(), "r");		/* Flawfinder: ignore */
-    
-    if(mounter == NULL)
-    {
-        llinfos << "Failed to mount disk image, exiting."<< llendl;
-        return false;
-    }
-    
-    // We need to scan the output from hdiutil to find the device node it uses to attach the disk image.
-    // If we don't have this information, we can't detach it later.
-    while(mounter != NULL)
-    {
-        size_t len = fread(temp, 1, sizeof(temp)-1, mounter);
-        temp[len] = 0;
-        mountOutput.append(temp);
-        if(len < sizeof(temp)-1)
-        {
-            // End of file or error.
-            int result = pclose(mounter);
-            if(result != 0)
-            {
-                // NOTE: We used to abort here, but pclose() started returning 
-                // -1, possibly when the size of the DMG passed a certain point 
-                llinfos << "Unexpected result closing pipe: " << result << llendl; 
-            }
-            mounter = NULL;
-        }
-    }
-    
-    if(!mountOutput.empty())
-    {
-        const char *s = mountOutput.c_str();
-        const char *prefix = "/dev/";
-        char *sub = strstr(s, prefix);
-        
-        if(sub != NULL)
-        {
-            sub += strlen(prefix);	/* Flawfinder: ignore */
-            sscanf(sub, "%1023s", deviceNode);	/* Flawfinder: ignore */
-        }
-    }
-    
-    if(deviceNode[0] != 0)
-    {
-        llinfos << "Disk image attached on /dev/" << deviceNode << llendl;
-    }
-    else
-    {
-        llinfos << "Disk image device node not found!" << llendl;
-        return false; 
-    }
-    
-    return true;
+	else
+	{
+		targetBundle = CFBundleCreate(NULL, targetURL);
+	}
+	
+	if(targetBundle == NULL)
+	{
+		llinfos << "Failed to create target bundle." << llendl;
+	}
+	else
+	{
+		targetBundleID = CFBundleGetIdentifier(targetBundle);
+	}
+	
+	if(targetBundleID == NULL)
+	{
+		llinfos << "Couldn't retrieve target bundle ID." << llendl;
+	}
+	else
+	{
+		sourceBundleID = CFStringCreateWithCString(NULL, gBundleID, kCFStringEncodingUTF8);
+		if(CFStringCompare(sourceBundleID, targetBundleID, 0) == kCFCompareEqualTo)
+		{
+			// This is the bundle we're looking for.
+			result = true;
+		}
+		else
+		{
+			llinfos << "Target bundle ID mismatch." << llendl;
+		}
+	}
+	
+	// Don't release targetBundleID -- since we don't retain it, it's released when targetBundle is released.
+	if(targetURL != NULL)
+		CFRelease(targetURL);
+	if(targetBundle != NULL)
+		CFRelease(targetBundle);
+	
+	return result;
 }
 
-bool LLMacUpdater::moveApplication (const boost::filesystem::path& app_dir, 
-                 const boost::filesystem::path& temp_dir, 
-                 boost::filesystem::path& aside_dir)
+// Search through the directory specified by 'parent' for an item that appears to be a Second Life viewer.
+static OSErr findAppBundleOnDiskImage(FSRef *parent, FSRef *app)
 {
-    try
-    {
-        //Grab filename from installdir append to tempdir move set aside_dir to moved path.
-        std::string install_str = app_dir.parent_path().string();
-        std::string temp_str = temp_dir.string();
-        std::string app_str = app_dir.filename().string();
-        aside_dir = boost::filesystem::path( boost::filesystem::operator/(temp_dir,app_str) );
-        std::cout << "Attempting to move " << app_dir.string() << " to " << aside_dir.string() << std::endl;
-    
-        boost::filesystem::rename(app_dir, aside_dir);
-    }
-    catch(boost::filesystem::filesystem_error e) 
-    {
-        llinfos << "Application move failed." << llendl;
-        return false;
-    }
-    return true;
-}
+	FSIterator		iterator;
+	bool			found = false;
+
+	OSErr err = FSOpenIterator( parent, kFSIterateFlat, &iterator );
+	if(!err)
+	{
+		do
+		{
+			ItemCount actualObjects = 0;
+			Boolean containerChanged = false;
+			FSCatalogInfo info;
+			FSRef ref;
+			HFSUniStr255 unicodeName;
+			err = FSGetCatalogInfoBulk( 
+					iterator, 
+					1, 
+					&actualObjects, 
+					&containerChanged,
+					kFSCatInfoNodeFlags, 
+					&info, 
+					&ref,
+					NULL, 
+					&unicodeName );
+			
+			if(actualObjects == 0)
+				break;
+				
+			if(!err)
+			{
+				// Call succeeded and not done with the iteration.
+				std::string name = HFSUniStr255_to_utf8str(&unicodeName);
+
+				llinfos << "Considering \"" << name << "\"" << llendl;
+
+				if(info.nodeFlags & kFSNodeIsDirectoryMask)
+				{
+					// This is a directory.  See if it's a .app
+					if(name.find(".app") != std::string::npos)
+					{
+						// Looks promising.  Check to see if it has the right bundle identifier.
+						if(isFSRefViewerBundle(&ref))
+						{
+							llinfos << name << " is the one" << llendl;
+							// This is the one.  Return it.
+							*app = ref;
+							found = true;
+							break;
+						} else {
+							llinfos << name << " is not the bundle we are looking for; move along" << llendl;
+						}
 
-bool LLMacUpdater::doInstall(const boost::filesystem::path& app_dir, 
-               const boost::filesystem::path& temp_dir,
-               boost::filesystem::path& mount_dir,
-               bool replacingTarget)
-{       
-    std::string temp_name = temp_dir.string() + std::string("/mnt");
-    
-    llinfos << "Disk image mount point is: " << temp_name << llendl;
-    
-    mount_dir = boost::filesystem::path(temp_name.c_str());
-    
-    if (! boost::filesystem::exists ( mount_dir ) )
-    {
-        llinfos << "Couldn't make FSRef to disk image mount point." << llendl;
-        return false;
-    }
-    
-    sendProgress(0, 0, std::string("Searching for the app bundle..."));
-    
-    boost::filesystem::path source_dir;
-    
-    if ( !findAppBundleOnDiskImage(mount_dir, source_dir) )
-    {
-        llinfos << "Couldn't find application bundle on mounted disk image." << llendl;
-        return false;
-    }
-    else
-    {
-        llinfos << "found the bundle." << llendl;
-    }
-    
-    sendProgress(0, 0, std::string("Preparing to copy files..."));
-    
-    // this will hold the name of the destination target
-    boost::filesystem::path aside_dir;
-    
-    if(replacingTarget)
-    {
-        
-        if (! moveApplication (app_dir, temp_dir, aside_dir) )
-        {
-            llwarns << "failed to move aside old version." << llendl;
-            return false;
-        }
-    }
-    
-    sendProgress(0, 0, std::string("Copying files..."));
-    
-    llinfos << "Starting copy..." << llendl;
-    //  If we were replacingTarget, we've moved the app to a temp directory.
-    //  Otherwise the destination should be empty.
-    //  We have mounted the DMG as a volume so we should be able to just 
-    //  move the app from the volume to the destination and everything  will just work.
-    
-    
-    // Copy the new version from the disk image to the target location.   
- 
-    //The installer volume is mounted read-only so we can't move.  Instead copy and then unmount.
-    if (! copyDir(source_dir.string(), app_dir.string()) )
-    {
-        llwarns << "Failed to copy " << source_dir.string() << " to " << app_dir.string() << llendl;
-        
-        // Something went wrong during the copy.  Attempt to put the old version back and bail.
-        boost::filesystem::rename(app_dir, aside_dir);
-        return false;
-        
-    }
-        
-    // The update has succeeded.  Clear the cache directory.
-    
-    sendProgress(0, 0, std::string("Clearing cache..."));
-    
-    llinfos << "Clearing cache..." << llendl;
-    
-    gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE,""), "*.*");
-    
-    llinfos << "Clear complete." << llendl;
-        
-    return true;
+					}
+				}
+			}
+		}
+		while(!err);
+		
+		llinfos << "closing the iterator" << llendl;
+		
+		FSCloseIterator(iterator);
+		
+		llinfos << "closed" << llendl;
+	}
+	
+	if(!err && !found)
+		err = fnfErr;
+		
+	return err;
 }
 
-void* LLMacUpdater::updatethreadproc(void*)
+void *updatethreadproc(void*)
 {
 	char tempDir[PATH_MAX] = "";		/* Flawfinder: ignore */
+	FSRef tempDirRef;
 	char temp[PATH_MAX] = "";	/* Flawfinder: ignore */
 	// *NOTE: This buffer length is used in a scanf() below.
 	char deviceNode[1024] = "";	/* Flawfinder: ignore */
-    
-	bool replacingTarget = false;
-
-    boost::filesystem::path app_dir;
-    boost::filesystem::path temp_dir;
-    boost::filesystem::path mount_dir;
-    
-    // Attempt to get a reference to the Second Life application bundle containing this updater.
-    // Any failures during this process will cause us to default to updating /Applications/Second Life.app
+	LLFILE *downloadFile = NULL;
+	OSStatus err;
+	ProcessSerialNumber psn;
+	char target[PATH_MAX] = "";		/* Flawfinder: ignore */
+	FSRef targetRef;
+	FSRef targetParentRef;
+	FSVolumeRefNum targetVol;
+	FSRef trashFolderRef;
+	Boolean replacingTarget = false;
 
+	memset(&tempDirRef, 0, sizeof(tempDirRef));
+	memset(&targetRef, 0, sizeof(targetRef));
+	memset(&targetParentRef, 0, sizeof(targetParentRef));
+	
 	try
-	{        
-        replacingTarget = getViewerDir( app_dir );
-        
-        if (!mkTempDir(temp_dir))
-        {
-            throw 0;
-        }
-       
-        //In case the dir doesn't exist, try to create it.  If create fails, verify it exists. 
-        if (! boost::filesystem::create_directory(app_dir))
-        {
-
-
-            if(isFSRefViewerBundle(app_dir.string()))
-            {
-                // This is the bundle we're looking for.
-                replacingTarget = true;
-            }
-            else 
-            {
-                throw 0; 
-            }
-        }
-        
-        if ( !verifyDirectory(&app_dir, true) )
-        {
-            // We're so hosed.
-            llinfos << "Applications directory not found, giving up." << llendl;
-            throw 0;
-        }    
+	{
+		// Attempt to get a reference to the Second Life application bundle containing this updater.
+		// Any failures during this process will cause us to default to updating /Applications/Second Life.app
+		{
+			FSRef myBundle;
+
+			err = GetCurrentProcess(&psn);
+			if(err == noErr)
+			{
+				err = GetProcessBundleLocation(&psn, &myBundle);
+			}
+
+			if(err == noErr)
+			{
+				// Sanity check:  Make sure the name of the item referenced by targetRef is "Second Life.app".
+				FSRefMakePath(&myBundle, (UInt8*)target, sizeof(target));
+				
+				llinfos << "Updater bundle location: " << target << llendl;
+			}
+			
+			// Our bundle should be in Second Life.app/Contents/Resources/AutoUpdater.app
+			// so we need to go up 3 levels to get the path to the main application bundle.
+			if(err == noErr)
+			{
+				err = FSGetCatalogInfo(&myBundle, kFSCatInfoNone, NULL, NULL, NULL, &targetRef);
+			}
+			if(err == noErr)
+			{
+				err = FSGetCatalogInfo(&targetRef, kFSCatInfoNone, NULL, NULL, NULL, &targetRef);
+			}
+			if(err == noErr)
+			{
+				err = FSGetCatalogInfo(&targetRef, kFSCatInfoNone, NULL, NULL, NULL, &targetRef);
+			}
+			
+			// And once more to get the parent of the target
+			if(err == noErr)
+			{
+				err = FSGetCatalogInfo(&targetRef, kFSCatInfoNone, NULL, NULL, NULL, &targetParentRef);
+			}
+			
+			if(err == noErr)
+			{
+				FSRefMakePath(&targetRef, (UInt8*)target, sizeof(target));
+				llinfos << "Path to target: " << target << llendl;
+			}
+			
+			// Sanity check: make sure the target is a bundle with the right identifier
+			if(err == noErr)
+			{
+				// Assume the worst...
+				err = -1;
+
+				if(isFSRefViewerBundle(&targetRef))
+				{
+					// This is the bundle we're looking for.
+					err = noErr;
+					replacingTarget = true;
+				}
+			}
+			
+			// Make sure the target's parent directory is writable.
+			if(err == noErr)
+			{
+				if(!isDirWritable(targetParentRef))
+				{
+					// Parent directory isn't writable.
+					llinfos << "Target parent directory not writable." << llendl;
+					err = -1;
+					replacingTarget = false;
+				}
+			}
+
+			if(err != noErr)
+			{
+				Boolean isDirectory;
+				llinfos << "Target search failed, defaulting to /Applications/" << gProductName << ".app." << llendl;
+				
+				// Set up the parent directory
+				err = FSPathMakeRef((UInt8*)"/Applications", &targetParentRef, &isDirectory);
+				if((err != noErr) || (!isDirectory))
+				{
+					// We're so hosed.
+					llinfos << "Applications directory not found, giving up." << llendl;
+					throw 0;
+				}
+				
+				snprintf(target, sizeof(target), "/Applications/%s.app", gProductName);		
+
+				memset(&targetRef, 0, sizeof(targetRef));
+				err = FSPathMakeRef((UInt8*)target, &targetRef, NULL);
+				if(err == fnfErr)
+				{
+					// This is fine, just means we're not replacing anything.
+					err = noErr;
+					replacingTarget = false;
+				}
+				else
+				{
+					replacingTarget = true;
+				}
+
+				// Make sure the target's parent directory is writable.
+				if(err == noErr)
+				{
+					if(!isDirWritable(targetParentRef))
+					{
+						// Parent directory isn't writable.
+						llinfos << "Target parent directory not writable." << llendl;
+						err = -1;
+						replacingTarget = false;
+					}
+				}
+
+			}
+			
+			// If we haven't fixed all problems by this point, just bail.
+			if(err != noErr)
+			{
+				llinfos << "Unable to pick a target, giving up." << llendl;
+				throw 0;
+			}
+		}
+		
+		// Find the volID of the volume the target resides on
+		{
+			FSCatalogInfo info;
+			err = FSGetCatalogInfo(
+				&targetParentRef,
+				kFSCatInfoVolume,
+				&info,
+				NULL, 
+				NULL,  
+				NULL);
+				
+			if(err != noErr)
+				throw 0;
+			
+			targetVol = info.volume;
+		}
+
+		// Find the temporary items and trash folders on that volume.
+		err = FSFindFolder(
+			targetVol,
+			kTrashFolderType,
+			true,
+			&trashFolderRef);
+
+		if(err != noErr)
+			throw 0;
+
+#if 0 // *HACK for DEV-11935 see below for details.
+
+		FSRef tempFolderRef;
+
+		err = FSFindFolder(
+			targetVol,
+			kTemporaryFolderType,
+			true,
+			&tempFolderRef);
+		
+		if(err != noErr)
+			throw 0;
+		
+		err = FSRefMakePath(&tempFolderRef, (UInt8*)temp, sizeof(temp));
+
+		if(err != noErr)
+			throw 0;
+
+#else		
+
+		// *HACK for DEV-11935  the above kTemporaryFolderType query was giving
+		// back results with path names that seem to be too long to be used as
+		// mount points.  I suspect this incompatibility was introduced in the
+		// Leopard 10.5.2 update, but I have not verified this. 
+		char const HARDCODED_TMP[] = "/tmp";
+		strncpy(temp, HARDCODED_TMP, sizeof(HARDCODED_TMP));
+
+#endif // 0 *HACK for DEV-11935
 		
 		// Skip downloading the file if the dmg was passed on the command line.
 		std::string dmgName;
-		if(mDmgFile != NULL) {
-            //Create a string from the mDmgFile then a dir reference to that.
-            //change to that directory and begin install.
-            
-            boost::filesystem::path dmg_path(*mDmgFile);
-            
-			dmgName = dmg_path.string();  
-            std::string* dmgPath = new std::string(dmg_path.parent_path().string());
-            if ( !boost::filesystem::exists( dmg_path.parent_path() ) )            {
-                llinfos << "Path " << *dmgPath << " is not writeable.   Aborting." << llendl;
-                throw 0;
-            }
-
-			chdir(dmgPath->c_str());
+		if(gDmgFile != NULL) {
+			dmgName = basename((char *)gDmgFile);
+			char * dmgDir = dirname((char *)gDmgFile);
+			strncpy(tempDir, dmgDir, sizeof(tempDir));
+			err = FSPathMakeRef((UInt8*)tempDir, &tempDirRef, NULL);
+			if(err != noErr) throw 0;
+			chdir(tempDir);
+			goto begin_install;
 		} else {
 			// Continue on to download file.
 			dmgName = "SecondLife.dmg";
-            
-
-            if (!downloadDMG(dmgName, &temp_dir))
-            {
-                throw 0;
-            }
-        }
-        
-        if (!doMount(dmgName, deviceNode, temp_dir))
-        {
-            throw 0;
-        }
-        
-        if (!doInstall( app_dir, temp_dir, mount_dir, replacingTarget ))
-        {
-            throw 0;
-        }
+		}
+
+		
+		strncat(temp, "/SecondLifeUpdate_XXXXXX", (sizeof(temp) - strlen(temp)) - 1);
+		if(mkdtemp(temp) == NULL)
+		{
+			throw 0;
+		}
+		
+		strncpy(tempDir, temp, sizeof(tempDir));
+		temp[sizeof(tempDir) - 1] = '\0';
+		
+		llinfos << "tempDir is " << tempDir << llendl;
+
+		err = FSPathMakeRef((UInt8*)tempDir, &tempDirRef, NULL);
+
+		if(err != noErr)
+			throw 0;
+				
+		chdir(tempDir);
+		
+		snprintf(temp, sizeof(temp), "SecondLife.dmg");		
+		
+		downloadFile = LLFile::fopen(temp, "wb");		/* Flawfinder: ignore */
+		if(downloadFile == NULL)
+		{
+			throw 0;
+		}
+
+		{
+			CURL *curl = curl_easy_init();
+
+			curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
+	//		curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &curl_download_callback);
+			curl_easy_setopt(curl, CURLOPT_FILE, downloadFile);
+			curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
+			curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, &curl_progress_callback_func);
+			curl_easy_setopt(curl, CURLOPT_URL,	gUpdateURL);
+			curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
+			
+			sendProgress(0, 1, CFSTR("Downloading..."));
+			
+			CURLcode result = curl_easy_perform(curl);
+			
+			curl_easy_cleanup(curl);
+			
+			if(gCancelled)
+			{
+				llinfos << "User cancel, bailing out."<< llendl;
+				throw 0;
+			}
+			
+			if(result != CURLE_OK)
+			{
+				llinfos << "Error " << result << " while downloading disk image."<< llendl;
+				throw 0;
+			}
+			
+			fclose(downloadFile);
+			downloadFile = NULL;
+		}
+
+	begin_install:
+		sendProgress(0, 0, CFSTR("Mounting image..."));
+		LLFile::mkdir("mnt", 0700);
+		
+		// NOTE: we could add -private at the end of this command line to keep the image from showing up in the Finder,
+		//		but if our cleanup fails, this makes it much harder for the user to unmount the image.
+		std::string mountOutput;
+		boost::format cmdFormat("hdiutil attach %s -mountpoint mnt");
+		cmdFormat % dmgName;
+		FILE* mounter = popen(cmdFormat.str().c_str(), "r");		/* Flawfinder: ignore */
+		
+		if(mounter == NULL)
+		{
+			llinfos << "Failed to mount disk image, exiting."<< llendl;
+			throw 0;
+		}
+		
+		// We need to scan the output from hdiutil to find the device node it uses to attach the disk image.
+		// If we don't have this information, we can't detach it later.
+		while(mounter != NULL)
+		{
+			size_t len = fread(temp, 1, sizeof(temp)-1, mounter);
+			temp[len] = 0;
+			mountOutput.append(temp);
+			if(len < sizeof(temp)-1)
+			{
+				// End of file or error.
+				int result = pclose(mounter);
+				if(result != 0)
+				{
+					// NOTE: We used to abort here, but pclose() started returning 
+					// -1, possibly when the size of the DMG passed a certain point 
+					llinfos << "Unexpected result closing pipe: " << result << llendl; 
+				}
+				mounter = NULL;
+			}
+		}
+		
+		if(!mountOutput.empty())
+		{
+			const char *s = mountOutput.c_str();
+			const char *prefix = "/dev/";
+			char *sub = strstr(s, prefix);
+			
+			if(sub != NULL)
+			{
+				sub += strlen(prefix);	/* Flawfinder: ignore */
+				sscanf(sub, "%1023s", deviceNode);	/* Flawfinder: ignore */
+			}
+		}
+		
+		if(deviceNode[0] != 0)
+		{
+			llinfos << "Disk image attached on /dev/" << deviceNode << llendl;
+		}
+		else
+		{
+			llinfos << "Disk image device node not found!" << llendl;
+			throw 0; 
+		}
+		
+		// Get an FSRef to the new application on the disk image
+		FSRef sourceRef;
+		FSRef mountRef;
+		snprintf(temp, sizeof(temp), "%s/mnt", tempDir);		
+
+		llinfos << "Disk image mount point is: " << temp << llendl;
 
+		err = FSPathMakeRef((UInt8 *)temp, &mountRef, NULL);
+		if(err != noErr)
+		{
+			llinfos << "Couldn't make FSRef to disk image mount point." << llendl;
+			throw 0;
+		}
+
+		sendProgress(0, 0, CFSTR("Searching for the app bundle..."));
+		err = findAppBundleOnDiskImage(&mountRef, &sourceRef);
+		if(err != noErr)
+		{
+			llinfos << "Couldn't find application bundle on mounted disk image." << llendl;
+			throw 0;
+		}
+		else
+		{
+			llinfos << "found the bundle." << llendl;
+		}
+
+		sendProgress(0, 0, CFSTR("Preparing to copy files..."));
+		
+		FSRef asideRef;
+		char aside[MAX_PATH];		/* Flawfinder: ignore */
+		
+		// this will hold the name of the destination target
+		CFStringRef appNameRef;
+
+		if(replacingTarget)
+		{
+			// Get the name of the target we're replacing
+			HFSUniStr255 appNameUniStr;
+			err = FSGetCatalogInfo(&targetRef, 0, NULL, &appNameUniStr, NULL, NULL);
+			if(err != noErr)
+				throw 0;
+			appNameRef = FSCreateStringFromHFSUniStr(NULL, &appNameUniStr);
+			
+			// Move aside old version (into work directory)
+			err = FSMoveObject(&targetRef, &tempDirRef, &asideRef);
+			if(err != noErr)
+			{
+				llwarns << "failed to move aside old version (error code " << 
+					err << ")" << llendl;
+				throw 0;
+			}
+
+			// Grab the path for later use.
+			err = FSRefMakePath(&asideRef, (UInt8*)aside, sizeof(aside));
+		}
+		else
+		{
+			// Construct the name of the target based on the product name
+			char appName[MAX_PATH];		/* Flawfinder: ignore */
+			snprintf(appName, sizeof(appName), "%s.app", gProductName);		
+			appNameRef = CFStringCreateWithCString(NULL, appName, kCFStringEncodingUTF8);
+		}
+		
+		sendProgress(0, 0, CFSTR("Copying files..."));
+		
+		llinfos << "Starting copy..." << llendl;
+
+		// Copy the new version from the disk image to the target location.
+		err = FSCopyObjectSync(
+				&sourceRef,
+				&targetParentRef,
+				appNameRef,
+				&targetRef,
+				kFSFileOperationDefaultOptions);
+		
+		// Grab the path for later use.
+		err = FSRefMakePath(&targetRef, (UInt8*)target, sizeof(target));
+		if(err != noErr)
+			throw 0;
+
+		llinfos << "Copy complete. Target = " << target << llendl;
+
+		if(err != noErr)
+		{
+			// Something went wrong during the copy.  Attempt to put the old version back and bail.
+			(void)FSDeleteObject(&targetRef);
+			if(replacingTarget)
+			{
+				(void)FSMoveObject(&asideRef, &targetParentRef, NULL);
+			}
+			throw 0;
+		}
+		else
+		{
+			// The update has succeeded.  Clear the cache directory.
+
+			sendProgress(0, 0, CFSTR("Clearing cache..."));
+	
+			llinfos << "Clearing cache..." << llendl;
+			
+			gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE,""), "*.*");
+			
+			llinfos << "Clear complete." << llendl;
+
+		}
 	}
 	catch(...)
 	{
 		if(!gCancelled)
-            gFailure = true;
+			if(gFailure == noErr)
+				gFailure = -1;
 	}
 
 	// Failures from here on out are all non-fatal and not reported.
-	sendProgress(0, 3, std::string("Cleaning up..."));
+	sendProgress(0, 3, CFSTR("Cleaning up..."));
 
-	setProgress(1, 3);
+	// Close disk image file if necessary
+	if(downloadFile != NULL)
+	{
+		llinfos << "Closing download file." << llendl;
+
+		fclose(downloadFile);
+		downloadFile = NULL;
+	}
+
+	sendProgress(1, 3);
 	// Unmount image
 	if(deviceNode[0] != 0)
 	{
@@ -599,61 +1223,35 @@ void* LLMacUpdater::updatethreadproc(void*)
 		system(temp);		/* Flawfinder: ignore */
 	}
 
-	setProgress(2, 3);
-    std::string *trash_str=getUserTrashFolder();
+	sendProgress(2, 3);
 
 	// Move work directory to the trash
 	if(tempDir[0] != 0)
 	{
 		llinfos << "Moving work directory to the trash." << llendl;
-                
-        try 
-        {
-            boost::filesystem::path trash_dir(*trash_str);
-            boost::filesystem::rename(mount_dir, trash_dir);
-        }
-        catch(boost::filesystem::filesystem_error e) 
-        { 
-            llwarns << "Failed to move " << mount_dir.string() << " to " << *trash_str << llendl;
-            return (NULL);
-        }
+
+		FSRef trashRef;
+		OSStatus err = FSMoveObjectToTrashSync(&tempDirRef, &trashRef, 0); 
+		if(err != noErr) {
+			llwarns << "failed to move files to trash, (error code " <<
+				err << ")" << llendl;
+		}
 	}
 	
-    std::string app_name_str = app_dir.string();
-
-	if(!gCancelled  && !gFailure && !app_name_str.empty())
+	if(!gCancelled  && !gFailure && (target[0] != 0))
 	{
-        //SPATTERS todo is there no better way to do this than system calls?
 		llinfos << "Touching application bundle." << llendl;
-        
-        std::stringstream touch_str;
 
-        touch_str << "touch '" << app_name_str << "'";
-        
-		system(touch_str.str().c_str());		/* Flawfinder: ignore */
+		snprintf(temp, sizeof(temp), "touch '%s'", target);		
+		system(temp);		/* Flawfinder: ignore */
 
 		llinfos << "Launching updated application." << llendl;
-        
-        std::stringstream open_str;
-        
-        open_str << "open '" << app_name_str << "'";
 
-		system(open_str.str().c_str());		/* Flawfinder: ignore */
+		snprintf(temp, sizeof(temp), "open '%s'", target);		
+		system(temp);		/* Flawfinder: ignore */
 	}
 
 	sendDone();
 	
-	return (NULL);
+	return(NULL);
 }
-
-//static
-void* LLMacUpdater::sUpdatethreadproc(void* vptr)
-{
-    if (!sInstance)
-    {
-        llerrs << "LLMacUpdater not instantiated before use.  Aborting." << llendl;
-        return (NULL);
-    }
-    return sInstance->updatethreadproc(vptr);
-}
-