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/* gdbmexists.c - Check to see if a key exists */
/* This file is part of GDBM, the GNU data base manager.
Copyright (C) 1993, 2007, 2011, 2013, 2016-2019 Free Software
Foundation, Inc.
GDBM 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.
GDBM 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 GDBM. If not, see <http://www.gnu.org/licenses/>. */
/* Include system configuration before all else. */
#include "autoconf.h"
#include "gdbmdefs.h"
/* This is nothing more than a wrapper around _gdbm_findkey(). The
point? It doesn't alloate any memory. */
int
gdbm_exists (GDBM_FILE dbf, datum key)
{
/* Return immediately if the database needs recovery */
GDBM_ASSERT_CONSISTENCY (dbf, 0);
if (_gdbm_findkey (dbf, key, NULL, NULL) < 0)
{
if (gdbm_errno == GDBM_ITEM_NOT_FOUND)
gdbm_set_errno (dbf, GDBM_NO_ERROR, FALSE);
return 0;
}
return 1;
}
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