now can package ipa, still problems with signing

stdfilesystems/filesystem_libc.cpp

@@ -2,6 +2,7 @@
 #include "tier1/interface.h"
 #include "tier0/lib.h"
 #include "errno.h"
+#include "dirent.h"
 
 class CLIBCFileHandle : public IFileHandle
 {
@@ -11,6 +12,12 @@ public:
 
 };
 
+class CLIBCDirectoryHandle: public IDirectoryHandle
+{
+public:
+	DIR *m_pDir;
+};
+
 class CLIBCFileSystem : public IFileSystem
 {
 public:
@@ -129,6 +136,30 @@ public:
 
 		return szData;
 	};
+	
+	virtual IDirectoryHandle *OpenDir( const char *szDirName ) override
+	{
+		CLIBCDirectoryHandle *pHandle = NULL;
+		DIR *pDir = opendir(szDirName);
+		if (pDir == NULL)
+			return NULL;
+
+		pHandle = new CLIBCDirectoryHandle;
+		pHandle->m_pDir = pDir;
+		return pHandle;
+
+	};
+
+	virtual void CloseDir( IDirectoryHandle *pDir ) override
+	{
+		if (!pDir)
+			return;
+		CLIBCDirectoryHandle *pCDir = (CLIBCDirectoryHandle*)pDir;
+
+		closedir(pCDir->m_pDir);
+
+		delete (CLIBCDirectoryHandle*)pDir;
+	};
 };
 
 EXPOSE_INTERFACE(CLIBCFileSystem, IFileSystem, FILESYSTEM_INTERFACE_VERSION)