Lots of hacking to make a very simple "ls" utility.

I added a dead-simple malloc that only allows allocations < 4096 bytes.
It just forwards the request to mmap() every time.

I also added simplified versions of opendir() and readdir().

LibC/types.h

@@ -17,5 +17,8 @@ typedef dword pid_t;
 typedef dword size_t;
 typedef signed_dword ssize_t;
 
+typedef dword ino_t;
+typedef signed_dword off_t;
+
 }