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71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*
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Unix SMB/Netbios implementation.
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Version 3.0
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Samba database functions
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Copyright (C) Andrew Tridgell 1999
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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typedef unsigned tdb_len;
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typedef unsigned tdb_off;
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#define TDB_MAGIC_FOOD "TDB file\n"
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/* this is stored at the front of every database */
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struct tdb_header {
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char magic_food[32]; /* for /etc/magic */
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unsigned version; /* version of the code */
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unsigned hash_size; /* number of hash entries */
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};
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typedef struct {
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char *dptr;
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size_t dsize;
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} TDB_DATA;
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/* this is the context structure that is returned from a db open */
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typedef struct {
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char *name; /* the name of the database */
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void *map_ptr; /* where it is currently mapped */
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int fd; /* open file descriptor for the database */
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tdb_len map_size; /* how much space has been mapped */
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int read_only; /* opened read-only */
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int *locked; /* set if we have a chain locked */
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struct tdb_header header; /* a cached copy of the header */
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} TDB_CONTEXT;
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/* flags to tdb_store() */
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#define TDB_REPLACE 1
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#define TDB_INSERT 2
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/* flags for tdb_open() */
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#define TDB_CLEAR_IF_FIRST 1
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#if STANDALONE
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TDB_CONTEXT *tdb_open(char *name, int hash_size, int tdb_flags,
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int open_flags, mode_t mode);
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int tdb_writelock(TDB_CONTEXT *tdb);
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int tdb_writeunlock(TDB_CONTEXT *tdb);
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TDB_DATA tdb_fetch(TDB_CONTEXT *tdb, TDB_DATA key);
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int tdb_delete(TDB_CONTEXT *tdb, TDB_DATA key);
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int tdb_store(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf, int flag);
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int tdb_close(TDB_CONTEXT *tdb);
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TDB_DATA tdb_firstkey(TDB_CONTEXT *tdb);
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TDB_DATA tdb_nextkey(TDB_CONTEXT *tdb, TDB_DATA key);
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int tdb_traverse(TDB_CONTEXT *tdb, int (*fn)(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA dbuf));
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int tdb_exists(TDB_CONTEXT *tdb, TDB_DATA key);
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#endif
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