Add callbacks for newer functions

* setupmapping
* removemapping
* syncfs
* tmpfile

src/fuse_setupmapping.cpp

@@ -0,0 +1,35 @@
+/*
+  ISC License
+
+  Copyright (c) 2023, Antonio SJ Musumeci <trapexit@spawn.link>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include "fuse_setupmapping.hpp"
+
+#include <sys/types.h>
+#include <errno.h>
+
+#include <cstdint>
+
+
+ssize_t
+FUSE::setupmapping(uint64_t *fh_,
+                   uint64_t  foffset_,
+                   uint64_t  len_,
+                   uint64_t  flags_,
+                   uint64_t  moffset_)
+{
+  return -ENOSYS;
+}