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/* Common database open/close routines for nss_db.
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C 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.
The GNU C 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 the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _NSS_DB_H
#define _NSS_DB_H 1
#include <stdint.h>
/* Variables which keep track of the error values. */
extern int db_keyexist;
extern int db_notfound;
/* Constants which vary from version to version are actually variables
here. */
extern int db_first;
extern int db_next;
extern int db_nooverwrite;
extern int db_truncate;
extern int db_rdonly;
/* Flags are also unchanged. */
#define DB_CREATE 0x000001
/* Similarly we have to handle the cursor object. It is also very
different from version to version. */
typedef struct
{
void *cursor;
int (*c_get) (void *, void *, void *, uint32_t);
} NSS_DBC;
/* This is the wrapper we put around the `DB' structures to provide a
uniform interface to the higher-level functions. */
typedef struct
{
void *db;
int (*close) (void *, uint32_t);
int (*cursor) (void *, void *, NSS_DBC **);
int (*fd) (void *, int *);
int (*get) (void *, void *, void *, void *, uint32_t);
int (*put) (void *, void *, void *, void *, uint32_t);
} NSS_DB;
/* The `DBT' type is the same in all versions we support. */
typedef struct {
void *data;
uint32_t size;
uint32_t ulen;
uint32_t dlen;
uint32_t doff;
uint32_t flags;
} DBT;
/* Private routines to nss_db.
You must have included nsswitch.h and db.h before this file. */
extern enum nss_status internal_setent (const char *file, NSS_DB **dbp);
extern void internal_endent (NSS_DB **dbp);
extern int db_cursor (void *db, void *txn, NSS_DBC **dbcp);
extern int load_db (void);
extern int dbopen (const char *fname, int oper, int mode, NSS_DB **dbp);
#endif /* nss_db.h */
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