--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/database.c	Mon Aug 13 11:28:15 2007 +0200
@@ -0,0 +1,808 @@
+/* Database access routines
+   Copyright (C) 1996, William M. Perry
+
+This file is part of XEmacs.
+
+XEmacs is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+XEmacs 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 General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: Not in FSF. */
+
+/* Written by Bill Perry */
+/* Substantially rewritten by Martin Buchholz */
+/* db 2.x support added by Andreas Jaeger */
+
+#include <config.h>
+#include "lisp.h"
+#include "sysfile.h"
+#include "buffer.h"
+#include <errno.h>
+
+#ifndef HAVE_DATABASE
+#error HAVE_DATABASE not defined!!
+#endif
+
+#include "database.h"         /* Our include file */
+
+#ifdef HAVE_BERKELEY_DB
+/* Work around Berkeley DB's use of int types which are defined
+   slightly differently in the not quite yet standard <inttypes.h>.
+   See db.h for details of why we're resorting to this... */
+/* glibc 2.1 doesn't have this problem with DB 2.x */
+#if !(defined __GLIBC__ && __GLIBC_MINOR__ >= 1)
+#ifdef HAVE_INTTYPES_H
+#define __BIT_TYPES_DEFINED__
+#include <inttypes.h>
+typedef uint8_t  u_int8_t;
+typedef uint16_t u_int16_t;
+typedef uint32_t u_int32_t;
+#ifdef WE_DONT_NEED_QUADS
+typedef uint64_t u_int64_t;
+#endif /* WE_DONT_NEED_QUADS */
+#endif /* HAVE_INTTYPES_H */
+#endif /* !(defined __GLIBC__ && __GLIBC_MINOR__ >= 1) */
+#include DB_H_PATH              /* Berkeley db's header file */
+#ifndef DB_VERSION_MAJOR
+# define DB_VERSION_MAJOR 1
+#endif /* DB_VERSION_MAJOR */
+Lisp_Object Qberkeley_db;
+Lisp_Object Qhash, Qbtree, Qrecno, Qunknown;
+#endif /* HAVE_BERKELEY_DB */
+
+#ifdef HAVE_DBM
+#include <ndbm.h>
+Lisp_Object Qdbm;
+#endif /* HAVE_DBM */
+
+#ifdef MULE
+/* #### The following should be settable on a per-database level.
+   But the whole coding-system infrastructure should be rewritten someday.
+   We really need coding-system aliases. -- martin */
+Lisp_Object Vdatabase_coding_system;
+#endif
+
+Lisp_Object Qdatabasep;
+
+struct Lisp_Database;
+typedef struct Lisp_Database Lisp_Database;
+
+typedef struct
+{
+  Lisp_Object (*get_subtype) (Lisp_Database *);
+  Lisp_Object (*get_type) (Lisp_Database *);
+  Lisp_Object (*get) (Lisp_Database *, Lisp_Object);
+  int (*put) (Lisp_Database *, Lisp_Object, Lisp_Object, Lisp_Object);
+  int (*rem) (Lisp_Database *, Lisp_Object);
+  void (*map) (Lisp_Database *, Lisp_Object);
+  void (*close) (Lisp_Database *);
+  Lisp_Object (*last_error) (Lisp_Database *);
+} DB_FUNCS;
+
+struct Lisp_Database
+{
+  struct lcrecord_header header;
+  Lisp_Object fname;
+  int mode;
+  int access_;
+  int dberrno;
+  int live_p;
+#ifdef HAVE_DBM
+  DBM *dbm_handle;
+#endif
+#ifdef HAVE_BERKELEY_DB
+  DB *db_handle;
+#endif
+  DB_FUNCS *funcs;
+#ifdef MULE
+  Lisp_Object coding_system;
+#endif
+};
+
+#define XDATABASE(x) XRECORD (x, database, Lisp_Database)
+#define XSETDATABASE(x, p) XSETRECORD (x, p, database)
+#define DATABASEP(x) RECORDP (x, database)
+#define GC_DATABASEP(x) GC_RECORDP (x, database)
+#define CHECK_DATABASE(x) CHECK_RECORD (x, database)
+#define CONCHECK_DATABASE(x) CONCHECK_RECORD (x, database)
+#define DATABASE_LIVE_P(x) (x->live_p)
+
+#define CHECK_LIVE_DATABASE(db) do {					\
+  CHECK_DATABASE (db);							\
+  if (!DATABASE_LIVE_P (XDATABASE(db)))					\
+    signal_simple_error ("Attempting to access closed database", db);	\
+} while (0)
+
+
+static Lisp_Database *
+allocate_database (void)
+{
+  Lisp_Database *db = alloc_lcrecord_type (Lisp_Database, &lrecord_database);
+
+  db->fname = Qnil;
+  db->live_p = 0;
+#ifdef HAVE_BERKELEY_DB
+  db->db_handle = NULL;
+#endif
+#ifdef HAVE_DBM
+  db->dbm_handle = NULL;
+#endif
+  db->access_ = 0;
+  db->mode = 0;
+  db->dberrno = 0;
+#ifdef MULE
+  db->coding_system = Fget_coding_system (Qbinary);
+#endif
+  return db;
+}
+
+static Lisp_Object
+mark_database (Lisp_Object obj)
+{
+  Lisp_Database *db = XDATABASE (obj);
+  return db->fname;
+}
+
+static void
+print_database (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
+{
+  char buf[64];
+  Lisp_Database *db = XDATABASE (obj);
+
+  if (print_readably)
+    error ("printing unreadable object #<database 0x%x>", db->header.uid);
+
+  write_c_string ("#<database \"", printcharfun);
+  print_internal (db->fname, printcharfun, 0);
+  sprintf (buf, "\" (%s/%s/%s) 0x%x>",
+	   (char *) string_data (XSYMBOL (db->funcs->get_type (db))->name),
+	   (char *) string_data (XSYMBOL (db->funcs->get_subtype (db))->name),
+	   (!DATABASE_LIVE_P (db)    ? "closed"    :
+	    (db->access_ & O_WRONLY) ? "writeonly" :
+	    (db->access_ & O_RDWR)   ? "readwrite" : "readonly"),
+	   db->header.uid);
+  write_c_string (buf, printcharfun);
+}
+
+static void
+finalize_database (void *header, int for_disksave)
+{
+  Lisp_Database *db = (Lisp_Database *) header;
+
+  if (for_disksave)
+    {
+      Lisp_Object obj;
+      XSETDATABASE (obj, db);
+
+      signal_simple_error
+	("Can't dump an emacs containing database objects", obj);
+    }
+  db->funcs->close (db);
+}
+
+DEFINE_LRECORD_IMPLEMENTATION ("database", database,
+                               mark_database, print_database,
+			       finalize_database, 0, 0, 0,
+			       Lisp_Database);
+
+DEFUN ("close-database", Fclose_database, 1, 1, 0, /*
+Close database DATABASE.
+*/
+       (database))
+{
+  Lisp_Database *db;
+  CHECK_LIVE_DATABASE (database);
+  db = XDATABASE (database);
+  db->funcs->close (db);
+  db->live_p = 0;
+  return Qnil;
+}
+
+DEFUN ("database-type", Fdatabase_type, 1, 1, 0, /*
+Return the type of database DATABASE.
+*/
+       (database))
+{
+  CHECK_DATABASE (database);
+
+  return XDATABASE (database)->funcs->get_type (XDATABASE (database));
+}
+
+DEFUN ("database-subtype", Fdatabase_subtype, 1, 1, 0, /*
+Return the subtype of database DATABASE, if any.
+*/
+       (database))
+{
+  CHECK_DATABASE (database);
+
+  return XDATABASE (database)->funcs->get_subtype (XDATABASE (database));
+}
+
+DEFUN ("database-live-p", Fdatabase_live_p, 1, 1, 0, /*
+Return t if OBJ is an active database.
+*/
+       (obj))
+{
+  return DATABASEP (obj) && DATABASE_LIVE_P (XDATABASE (obj)) ? Qt : Qnil;
+}
+
+DEFUN ("database-file-name", Fdatabase_file_name, 1, 1, 0, /*
+Return the filename associated with the database DATABASE.
+*/
+       (database))
+{
+  CHECK_DATABASE (database);
+
+  return XDATABASE (database)->fname;
+}
+
+DEFUN ("databasep", Fdatabasep, 1, 1, 0, /*
+Return t if OBJ is a database.
+*/
+       (obj))
+{
+  return DATABASEP (obj) ? Qt : Qnil;
+}
+
+#ifdef HAVE_DBM
+static void
+dbm_map (Lisp_Database *db, Lisp_Object func)
+{
+  datum keydatum, valdatum;
+  Lisp_Object key, val;
+
+  for (keydatum = dbm_firstkey (db->dbm_handle);
+       keydatum.dptr != NULL;
+       keydatum = dbm_nextkey (db->dbm_handle))
+    {
+      valdatum = dbm_fetch (db->dbm_handle, keydatum);
+      key = make_string ((unsigned char *) keydatum.dptr, keydatum.dsize);
+      val = make_string ((unsigned char *) valdatum.dptr, valdatum.dsize);
+      call2 (func, key, val);
+    }
+}
+
+static Lisp_Object
+dbm_get (Lisp_Database *db, Lisp_Object key)
+{
+  datum keydatum, valdatum;
+
+  keydatum.dptr = (char *) XSTRING_DATA (key);
+  keydatum.dsize = XSTRING_LENGTH (key);
+  valdatum = dbm_fetch (db->dbm_handle, keydatum);
+
+  return (valdatum.dptr
+	  ? make_string ((unsigned char *) valdatum.dptr, valdatum.dsize)
+	  : Qnil);
+}
+
+static int
+dbm_put (Lisp_Database *db,
+	 Lisp_Object key, Lisp_Object val, Lisp_Object replace)
+{
+  datum keydatum, valdatum;
+
+  valdatum.dptr = (char *) XSTRING_DATA (val);
+  valdatum.dsize = XSTRING_LENGTH (val);
+  keydatum.dptr = (char *) XSTRING_DATA (key);
+  keydatum.dsize = XSTRING_LENGTH (key);
+
+  return !dbm_store (db->dbm_handle, keydatum, valdatum,
+		     NILP (replace) ? DBM_INSERT : DBM_REPLACE);
+}
+
+static int
+dbm_remove (Lisp_Database *db, Lisp_Object key)
+{
+  datum keydatum;
+
+  keydatum.dptr = (char *) XSTRING_DATA (key);
+  keydatum.dsize = XSTRING_LENGTH (key);
+
+  return dbm_delete (db->dbm_handle, keydatum);
+}
+
+static Lisp_Object
+dbm_type (Lisp_Database *db)
+{
+  return Qdbm;
+}
+
+static Lisp_Object
+dbm_subtype (Lisp_Database *db)
+{
+  return Qnil;
+}
+
+static Lisp_Object
+dbm_lasterr (Lisp_Database *db)
+{
+  return lisp_strerror (db->dberrno);
+}
+
+static void
+dbm_closeit (Lisp_Database *db)
+{
+  if (db->dbm_handle)
+    {
+      dbm_close (db->dbm_handle);
+      db->dbm_handle = NULL;
+    }
+}
+
+static DB_FUNCS ndbm_func_block =
+{
+  dbm_subtype,
+  dbm_type,
+  dbm_get,
+  dbm_put,
+  dbm_remove,
+  dbm_map,
+  dbm_closeit,
+  dbm_lasterr
+};
+#endif /* HAVE_DBM */
+
+#ifdef HAVE_BERKELEY_DB
+static Lisp_Object
+berkdb_type (Lisp_Database *db)
+{
+  return Qberkeley_db;
+}
+
+static Lisp_Object
+berkdb_subtype (Lisp_Database *db)
+{
+  if (!db->db_handle)
+    return Qnil;
+
+  switch (db->db_handle->type)
+    {
+    case DB_BTREE: return Qbtree;
+    case DB_HASH:  return Qhash;
+    case DB_RECNO: return Qrecno;
+    default:       return Qunknown;
+    }
+}
+
+static Lisp_Object
+berkdb_lasterr (Lisp_Database *db)
+{
+  return lisp_strerror (db->dberrno);
+}
+
+static Lisp_Object
+berkdb_get (Lisp_Database *db, Lisp_Object key)
+{
+  DBT keydatum, valdatum;
+  int status = 0;
+
+  /* DB Version 2 requires DBT's to be zeroed before use. */
+  xzero (keydatum);
+  xzero (valdatum);
+
+  keydatum.data = XSTRING_DATA (key);
+  keydatum.size = XSTRING_LENGTH (key);
+
+#if DB_VERSION_MAJOR == 1
+  status = db->db_handle->get (db->db_handle, &keydatum, &valdatum, 0);
+#else
+  status = db->db_handle->get (db->db_handle, NULL, &keydatum, &valdatum, 0);
+#endif /* DB_VERSION_MAJOR */
+
+  if (!status)
+    /* #### Not mule-ized! will crash! */
+    return make_string ((Bufbyte *) valdatum.data, valdatum.size);
+
+#if DB_VERSION_MAJOR == 1
+  db->dberrno = (status == 1) ? -1 : errno;
+#else
+  db->dberrno = (status < 0) ? -1 : errno;
+#endif /* DB_VERSION_MAJOR */
+
+  return Qnil;
+}
+
+static int
+berkdb_put (Lisp_Database *db,
+	    Lisp_Object key,
+	    Lisp_Object val,
+	    Lisp_Object replace)
+{
+  DBT keydatum, valdatum;
+  int status = 0;
+
+  /* DB Version 2 requires DBT's to be zeroed before use. */
+  xzero (keydatum);
+  xzero (valdatum);
+
+  keydatum.data = XSTRING_DATA   (key);
+  keydatum.size = XSTRING_LENGTH (key);
+  valdatum.data = XSTRING_DATA   (val);
+  valdatum.size = XSTRING_LENGTH (val);
+#if DB_VERSION_MAJOR == 1
+  status = db->db_handle->put (db->db_handle, &keydatum, &valdatum,
+ 			       NILP (replace) ? R_NOOVERWRITE : 0);
+  db->dberrno = (status == 1) ? -1 : errno;
+#else
+  status = db->db_handle->put (db->db_handle, NULL, &keydatum, &valdatum,
+			       NILP (replace) ? DB_NOOVERWRITE : 0);
+  db->dberrno = (status < 0) ? -1 : errno;
+#endif/* DV_VERSION_MAJOR = 2 */
+
+  return status;
+}
+
+static int
+berkdb_remove (Lisp_Database *db, Lisp_Object key)
+{
+  DBT keydatum;
+  int status;
+
+  /* DB Version 2 requires DBT's to be zeroed before use. */
+  xzero (keydatum);
+
+  keydatum.data = XSTRING_DATA   (key);
+  keydatum.size = XSTRING_LENGTH (key);
+
+#if DB_VERSION_MAJOR == 1
+  status = db->db_handle->del (db->db_handle, &keydatum, 0);
+#else
+  status = db->db_handle->del (db->db_handle, NULL, &keydatum, 0);
+#endif /* DB_VERSION_MAJOR */
+
+  if (!status)
+    return 0;
+
+#if DB_VERSION_MAJOR == 1
+  db->dberrno = (status == 1) ? -1 : errno;
+#else
+  db->dberrno = (status < 0) ? -1 : errno;
+#endif /* DB_VERSION_MAJOR */
+
+  return 1;
+}
+
+static void
+berkdb_map (Lisp_Database *db, Lisp_Object func)
+{
+  DBT keydatum, valdatum;
+  Lisp_Object key, val;
+  DB *dbp = db->db_handle;
+  int status;
+
+  xzero (keydatum);
+  xzero (valdatum);
+
+#if DB_VERSION_MAJOR == 1
+  for (status = dbp->seq (dbp, &keydatum, &valdatum, R_FIRST);
+       status == 0;
+       status = dbp->seq (dbp, &keydatum, &valdatum, R_NEXT))
+    {
+      /* ### Needs mule-izing */
+      key = make_string ((Bufbyte *) keydatum.data, keydatum.size);
+      val = make_string ((Bufbyte *) valdatum.data, valdatum.size);
+      call2 (func, key, val);
+    }
+#else
+  {
+    DBC *dbcp;
+
+#if DB_VERSION_MAJOR > 2 || DB_VERSION_MINOR >=6
+    status = dbp->cursor (dbp, NULL, &dbcp, 0);
+#else
+    status = dbp->cursor (dbp, NULL, &dbcp);
+#endif   
+    for (status = dbcp->c_get (dbcp, &keydatum, &valdatum, DB_FIRST);
+	 status == 0;
+	 status = dbcp->c_get (dbcp, &keydatum, &valdatum, DB_NEXT))
+      {
+	/* ### Needs mule-izing */
+	key = make_string ((Bufbyte *) keydatum.data, keydatum.size);
+	val = make_string ((Bufbyte *) valdatum.data, valdatum.size);
+	call2 (func, key, val);
+      }
+    dbcp->c_close (dbcp);
+  }
+#endif /* DB_VERSION_MAJOR */
+}
+
+static void
+berkdb_close (Lisp_Database *db)
+{
+  if (db->db_handle)
+    {
+#if DB_VERSION_MAJOR == 1
+      db->db_handle->sync  (db->db_handle, 0);
+      db->db_handle->close (db->db_handle);
+#else
+      db->db_handle->sync  (db->db_handle, 0);
+      db->db_handle->close (db->db_handle, 0);
+#endif /* DB_VERSION_MAJOR */
+      db->db_handle = NULL;
+    }
+}
+
+static DB_FUNCS berk_func_block =
+{
+  berkdb_subtype,
+  berkdb_type,
+  berkdb_get,
+  berkdb_put,
+  berkdb_remove,
+  berkdb_map,
+  berkdb_close,
+  berkdb_lasterr
+};
+#endif /* HAVE_BERKELEY_DB */
+
+DEFUN ("database-last-error", Fdatabase_last_error, 0, 1, 0, /*
+Return the last error associated with DATABASE.
+*/
+       (database))
+{
+  if (NILP (database))
+    return lisp_strerror (errno);
+
+  CHECK_DATABASE (database);
+
+  return XDATABASE (database)->funcs->last_error (XDATABASE (database));
+}
+
+DEFUN ("open-database", Fopen_database, 1, 5, 0, /*
+Return a new database object opened on FILE.
+Optional arguments TYPE and SUBTYPE specify the database type.
+Optional argument ACCESS specifies the access rights, which may be any
+combination of 'r' 'w' and '+', for read, write, and creation flags.
+Optional argument MODE gives the permissions to use when opening FILE,
+and defaults to 0755.
+*/
+       (file, type, subtype, access_, mode))
+{
+  /* This function can GC */
+  int modemask;
+  int accessmask = 0;
+  Lisp_Database *db = NULL;
+  char *filename;
+  struct gcpro gcpro1, gcpro2;
+
+  CHECK_STRING (file);
+  GCPRO2 (file, access_);
+  file = Fexpand_file_name (file, Qnil);
+  UNGCPRO;
+
+  GET_C_CHARPTR_EXT_FILENAME_DATA_ALLOCA (XSTRING_DATA (file), filename);
+
+  if (NILP (access_))
+    {
+      accessmask = O_RDWR | O_CREAT;
+    }
+  else
+    {
+      char *acc;
+      CHECK_STRING (access_);
+      acc = (char *) XSTRING_DATA (access_);
+
+      if (strchr (acc, '+'))
+	accessmask |= O_CREAT;
+
+      {
+	char *rp = strchr (acc, 'r');
+	char *wp = strchr (acc, 'w');
+	if (rp && wp) accessmask |= O_RDWR;
+	else if (wp)  accessmask |= O_WRONLY;
+	else          accessmask |= O_RDONLY;
+      }
+    }
+
+  if (NILP (mode))
+    {
+      modemask = 0755;		/* rwxr-xr-x */
+    }
+  else
+    {
+      CHECK_INT (mode);
+      modemask = XINT (mode);
+    }
+
+#ifdef HAVE_DBM
+  if (NILP (type) || EQ (type, Qdbm))
+    {
+      DBM *dbase = dbm_open (filename, accessmask, modemask);
+      if (!dbase)
+	return Qnil;
+
+      db = allocate_database ();
+      db->dbm_handle = dbase;
+      db->funcs = &ndbm_func_block;
+      goto db_done;
+    }
+#endif /* HAVE_DBM */
+
+#ifdef HAVE_BERKELEY_DB
+  if (NILP (type) || EQ (type, Qberkeley_db))
+    {
+      DBTYPE real_subtype;
+      DB *dbase;
+#if DB_VERSION_MAJOR != 1
+      int status;
+#endif
+
+      if (EQ (subtype, Qhash) || NILP (subtype))
+	real_subtype = DB_HASH;
+      else if (EQ (subtype, Qbtree))
+	real_subtype = DB_BTREE;
+      else if (EQ (subtype, Qrecno))
+	real_subtype = DB_RECNO;
+      else
+	signal_simple_error ("Unsupported subtype", subtype);
+
+#if DB_VERSION_MAJOR == 1
+      dbase = dbopen (filename, accessmask, modemask, real_subtype, NULL);
+      if (!dbase)
+	return Qnil;
+#else
+      /* Berkeley DB Version 2 has only the accessmask DB_CREATE and DB_RDONLY,
+	 other flags shouldn't be set */
+      if (NILP (access_))
+	accessmask = DB_CREATE;
+      else
+	{
+	  char *acc;
+	  CHECK_STRING (access_);
+	  acc = (char *) XSTRING_DATA (access_);
+	  accessmask = 0;
+
+	  if (strchr (acc, '+'))
+	    accessmask |= DB_CREATE;
+
+	  if (strchr (acc, 'r') && !strchr (acc, 'w'))
+	    accessmask |= DB_RDONLY;
+	}
+      status = db_open (filename, real_subtype, accessmask,
+			modemask, NULL , NULL, &dbase);
+      if (status)
+	return Qnil;
+#endif /* DB_VERSION_MAJOR */
+
+      db = allocate_database ();
+      db->db_handle = dbase;
+      db->funcs = &berk_func_block;
+      goto db_done;
+    }
+#endif /* HAVE_BERKELEY_DB */
+
+  signal_simple_error ("Unsupported database type", type);
+  return Qnil;
+
+ db_done:
+  db->live_p = 1;
+  db->fname = file;
+  db->mode = modemask;
+  db->access_ = accessmask;
+
+  {
+    Lisp_Object retval;
+    XSETDATABASE (retval, db);
+    return retval;
+  }
+}
+
+DEFUN ("put-database", Fput_database, 3, 4, 0, /*
+Store KEY and VALUE in DATABASE.
+If optional fourth arg REPLACE is non-nil,
+replace any existing entry in the database.
+*/
+       (key, value, database, replace))
+{
+  CHECK_LIVE_DATABASE (database);
+  CHECK_STRING (key);
+  CHECK_STRING (value);
+  {
+    Lisp_Database *db = XDATABASE (database);
+    int status = db->funcs->put (db, key, value, replace);
+    return status ? Qt : Qnil;
+  }
+}
+
+DEFUN ("remove-database", Fremove_database, 2, 2, 0, /*
+Remove KEY from DATABASE.
+*/
+       (key, database))
+{
+  CHECK_LIVE_DATABASE (database);
+  CHECK_STRING (key);
+  {
+    Lisp_Database *db = XDATABASE (database);
+    int status = db->funcs->rem (db, key);
+    return status ? Qt : Qnil;
+  }
+}
+
+DEFUN ("get-database", Fget_database, 2, 3, 0, /*
+Return value for KEY in DATABASE.
+If there is no corresponding value, return DEFAULT (defaults to nil).
+*/
+       (key, database, default_))
+{
+  CHECK_LIVE_DATABASE (database);
+  CHECK_STRING (key);
+  {
+    Lisp_Database *db = XDATABASE (database);
+    Lisp_Object retval = db->funcs->get (db, key);
+    return NILP (retval) ? default_ : retval;
+  }
+}
+
+DEFUN ("map-database", Fmapdatabase, 2, 2, 0, /*
+Map FUNCTION over entries in DATABASE, calling it with two args,
+each key and value in the database.
+*/
+       (function, database))
+{
+  CHECK_LIVE_DATABASE (database);
+
+  XDATABASE (database)->funcs->map (XDATABASE (database), function);
+
+  return Qnil;
+}
+
+void
+syms_of_database (void)
+{
+  defsymbol (&Qdatabasep, "databasep");
+#ifdef HAVE_DBM
+  defsymbol (&Qdbm, "dbm");
+#endif
+#ifdef HAVE_BERKELEY_DB
+  defsymbol (&Qberkeley_db, "berkeley-db");
+  defsymbol (&Qhash, "hash");
+  defsymbol (&Qbtree, "btree");
+  defsymbol (&Qrecno, "recno");
+  defsymbol (&Qunknown, "unknown");
+#endif
+
+  DEFSUBR (Fopen_database);
+  DEFSUBR (Fdatabasep);
+  DEFSUBR (Fmapdatabase);
+  DEFSUBR (Fput_database);
+  DEFSUBR (Fget_database);
+  DEFSUBR (Fremove_database);
+  DEFSUBR (Fdatabase_type);
+  DEFSUBR (Fdatabase_subtype);
+  DEFSUBR (Fdatabase_last_error);
+  DEFSUBR (Fdatabase_live_p);
+  DEFSUBR (Fdatabase_file_name);
+  DEFSUBR (Fclose_database);
+}
+
+void
+vars_of_database (void)
+{
+#ifdef HAVE_DBM
+  Fprovide (Qdbm);
+#endif
+#ifdef HAVE_BERKELEY_DB
+  Fprovide (Qberkeley_db);
+#endif
+
+#if 0 /* #### implement me! */
+#ifdef MULE
+  DEFVAR_LISP ("database-coding-system", &Vdatabase_coding_system /*
+Coding system used to convert data in database files.
+*/ );
+  Vdatabase_coding_system = Qnil;
+#endif
+#endif /* 0 */
+}