4 files changed, 12 insertions, 11 deletions

diff --git a/indra/linux_updater/linux_updater.cpp b/indra/linux_updater/linux_updater.cpp
index eed00ac06e..9872c0ce27 100644
--- a/indra/linux_updater/linux_updater.cpp
+++ b/indra/linux_updater/linux_updater.cpp
@@ -751,7 +751,7 @@ void parse_args_and_init(int argc, char **argv, UpdaterAppState *app_state)
 		else if ((!strcmp(argv[i], "--image-dir")) && (++i < argc))
 		{
 			app_state->image_dir = argv[i];
-			app_state->image_dir_iter = new LLDirIterator(argv[i], "/*.jpg");
+			app_state->image_dir_iter = new LLDirIterator(argv[i], "*.jpg");
 		}
 		else if ((!strcmp(argv[i], "--dest")) && (++i < argc))
 		{
diff --git a/indra/llvfs/lldir.cpp b/indra/llvfs/lldir.cpp
index f3ac17d612..32d081d552 100644
--- a/indra/llvfs/lldir.cpp
+++ b/indra/llvfs/lldir.cpp
@@ -86,6 +86,13 @@ S32 LLDir::deleteFilesInDir(const std::string &dirname, const std::string &mask)
 	std::string fullpath;
 	S32 result;
 
+	// File masks starting with "/" will match nothing, so we consider them invalid.
+	if (LLStringUtil::startsWith(mask, getDirDelimiter()))
+	{
+		llwarns << "Invalid file mask: " << mask << llendl;
+		llassert(!"Invalid file mask");
+	}
+
 	LLDirIterator iter(dirname, mask);
 	while (iter.next(filename))
 	{
diff --git a/indra/mac_updater/mac_updater.cpp b/indra/mac_updater/mac_updater.cpp
index 809f66cb1d..aa45c5d23f 100644
--- a/indra/mac_updater/mac_updater.cpp
+++ b/indra/mac_updater/mac_updater.cpp
@@ -1188,9 +1188,7 @@ void *updatethreadproc(void*)
 	
 			llinfos << "Clearing cache..." << llendl;
 			
-			char mask[LL_MAX_PATH];		/* Flawfinder: ignore */
-			snprintf(mask, LL_MAX_PATH, "%s*.*", gDirUtilp->getDirDelimiter().c_str());		
-			gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE,""),mask);
+			gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE,""), "*.*");
 			
 			llinfos << "Clear complete." << llendl;
 
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 5941dbc126..3368fdff57 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -1512,7 +1512,6 @@ bool LLAppViewer::cleanup()
 	if (! isError())
 	{
 		std::string logdir = gDirUtilp->getExpandedFilename(LL_PATH_LOGS, "");
-		logdir += gDirUtilp->getDirDelimiter();
 		gDirUtilp->deleteFilesInDir(logdir, "*-*-*-*-*.dmp");
 	}
 
@@ -1761,8 +1760,7 @@ bool LLAppViewer::cleanup()
 	if (mPurgeOnExit)
 	{
 		llinfos << "Purging all cache files on exit" << llendflush;
-		std::string mask = gDirUtilp->getDirDelimiter() + "*.*";
-		gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE,""),mask);
+		gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE,""), "*.*");
 	}
 
 	removeMarkerFile(); // Any crashes from here on we'll just have to ignore
@@ -2996,8 +2994,7 @@ void LLAppViewer::cleanupSavedSettings()
 
 void LLAppViewer::removeCacheFiles(const std::string& file_mask)
 {
-	std::string mask = gDirUtilp->getDirDelimiter() + file_mask;
-	gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE, ""), mask);
+	gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE, ""), file_mask);
 }
 
 void LLAppViewer::writeSystemInfo()
@@ -3856,8 +3853,7 @@ void LLAppViewer::purgeCache()
 	LL_INFOS("AppCache") << "Purging Cache and Texture Cache..." << LL_ENDL;
 	LLAppViewer::getTextureCache()->purgeCache(LL_PATH_CACHE);
 	LLVOCache::getInstance()->removeCache(LL_PATH_CACHE);
-	std::string mask = "*.*";
-	gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE, ""), mask);
+	gDirUtilp->deleteFilesInDir(gDirUtilp->getExpandedFilename(LL_PATH_CACHE, ""), "*.*");
 }
 
 std::string LLAppViewer::getSecondLifeTitle() const