/* fetch.c - Find a key and return the associated data.  */

/* This file is part of GDBM, the GNU data base manager.
   Copyright (C) 1990, 1991, 1993, 2007  Free Software Foundation, Inc.

   This program 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 3, or (at your option)
   any later version.

   This program 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 this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

/* Include system configuration before all else. */
#include "autoconf.h"

#include "gdbmdefs.h"
#include "extern.h"


/* Look up a given KEY and return the information associated with that KEY.
   The pointer in the structure that is  returned is a pointer to dynamically
   allocated memory block.  This DBM interface uses the NDBM interface. */

datum
fetch (datum key)
{
  datum  ret_val;		/* The return value. */

  /* Free previous dynamic memory, do actual call, and save pointer to new
     memory. */
  ret_val = gdbm_fetch (_gdbm_file, key);
  if (_gdbm_fetch_val != NULL) free (_gdbm_fetch_val);
  _gdbm_fetch_val = ret_val.dptr;

  /* Return the new value. */
  return ret_val;

}