This is gnu lib malloc from NetBSD verbatium, here is the version info

that Chris created:
this version of GNU malloc was obtained from prep.ai.mit.edu on
9/22/1993.  There was no version noted.

1 files changed, 39 insertions, 0 deletions

diff --git a/gnu/lib/libmalloc/mstats.c b/gnu/lib/libmalloc/mstats.c
new file mode 100644
index 0000000..511cdad
--- /dev/null
+++ b/gnu/lib/libmalloc/mstats.c
@@ -0,0 +1,39 @@
+/* Access the statistics maintained by `malloc'.
+   Copyright 1990, 1991, 1992 Free Software Foundation
+		  Written May 1989 by Mike Haertel.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with this library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.
+
+   The author may be reached (Email) at the address mike@ai.mit.edu,
+   or (US mail) as Mike Haertel c/o Free Software Foundation.  */
+
+#ifndef	_MALLOC_INTERNAL
+#define _MALLOC_INTERNAL
+#include <malloc.h>
+#endif
+
+struct mstats
+mstats ()
+{
+  struct mstats result;
+
+  result.bytes_total = (char *) (*__morecore) (0) - _heapbase;
+  result.chunks_used = _chunks_used;
+  result.bytes_used = _bytes_used;
+  result.chunks_free = _chunks_free;
+  result.bytes_free = _bytes_free;
+  return result;
+}