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gnupg/g10/tdbio.h

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/* tdbio.h - Trust database I/O functions
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* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
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*
* This file is part of GnuPG.
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*
* GnuPG 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
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GnuPG is distributed in the hope that it will be useful,
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* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifndef G10_TDBIO_H
#define G10_TDBIO_H
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#include "host2net.h"
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#define TRUST_RECORD_LEN 40
#define SIGS_PER_RECORD ((TRUST_RECORD_LEN-10)/5)
#define ITEMS_PER_HTBL_RECORD ((TRUST_RECORD_LEN-2)/4)
#define ITEMS_PER_HLST_RECORD ((TRUST_RECORD_LEN-6)/5)
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#define ITEMS_PER_PREF_RECORD (TRUST_RECORD_LEN-10)
#if ITEMS_PER_PREF_RECORD % 2
#error ITEMS_PER_PREF_RECORD must be even
#endif
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#define MAX_LIST_SIGS_DEPTH 20
#define RECTYPE_VER 1
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#define RECTYPE_HTBL 10
#define RECTYPE_HLST 11
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#define RECTYPE_TRUST 12
#define RECTYPE_VALID 13
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#define RECTYPE_FREE 254
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struct trust_record {
int rectype;
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int mark;
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int dirty; /* for now only used internal by functions */
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struct trust_record *next; /* help pointer to build lists in memory */
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ulong recnum;
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union {
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struct { /* version record: */
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byte version; /* should be 3 */
byte marginals;
byte completes;
byte cert_depth;
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ulong created; /* timestamp of trustdb creation */
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ulong nextcheck; /* timestamp of next scheduled check */
ulong reserved;
ulong reserved2;
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ulong firstfree;
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ulong reserved3;
ulong trusthashtbl;
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} ver;
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struct { /* free record */
ulong next;
} free;
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struct {
ulong item[ITEMS_PER_HTBL_RECORD];
} htbl;
struct {
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ulong next;
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ulong rnum[ITEMS_PER_HLST_RECORD]; /* of another record */
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} hlst;
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struct {
byte fingerprint[20];
byte ownertrust;
byte depth;
ulong validlist;
} trust;
struct {
byte namehash[20];
ulong next;
byte validity;
} valid;
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} r;
};
typedef struct trust_record TRUSTREC;
/*-- tdbio.c --*/
int tdbio_set_dbname( const char *new_dbname, int create );
const char *tdbio_get_dbname(void);
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void tdbio_dump_record( TRUSTREC *rec, FILE *fp );
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int tdbio_read_record( ulong recnum, TRUSTREC *rec, int expected );
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int tdbio_write_record( TRUSTREC *rec );
int tdbio_db_matches_options(void);
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ulong tdbio_read_nextcheck (void);
int tdbio_write_nextcheck (ulong stamp);
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int tdbio_is_dirty(void);
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int tdbio_sync(void);
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int tdbio_begin_transaction(void);
int tdbio_end_transaction(void);
int tdbio_cancel_transaction(void);
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int tdbio_delete_record( ulong recnum );
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ulong tdbio_new_recnum(void);
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int tdbio_search_trust_byfpr(const byte *fingerprint, TRUSTREC *rec );
int tdbio_search_trust_bypk(PKT_public_key *pk, TRUSTREC *rec );
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void tdbio_invalid(void);
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#endif /*G10_TDBIO_H*/