empserver/include/empobj.h
Markus Armbruster b30c83cd64 Verify table uid sanity more tightly
verify_row() refrains from rejecting zero uids, because some tables
may contain blank entries, with zero uid.

Change it to check only header sanity for entries that are not in use.
This filters out all legitimately blank entries.  Tighten up the uid
check.

For computing "in use", factor empobj_in_use() out of xdvisible().
Note that xdvisible()'s case EF_COUNTRY doesn't bother to check
nat_stat, because that's implied by what it does check.  It's not
implied in empobj_in_use(), so add it there.
2011-06-25 16:54:29 +02:00

105 lines
2.9 KiB
C

/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2011, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure, Markus Armbruster
*
* Empire 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 of the License, 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, see <http://www.gnu.org/licenses/>.
*
* ---
*
* See files README, COPYING and CREDITS in the root of the source
* tree for related information and legal notices. It is expected
* that future projects/authors will amend these files as needed.
*
* ---
*
* empobj.h: General empire objects.
*
* Known contributors to this file:
* Ron Koenderink, 2006
* Markus Armbruster, 2006-2011
*/
#ifndef EMPOBJ_H
#define EMPOBJ_H
#include "commodity.h"
#include "game.h"
#include "land.h"
#include "loan.h"
#include "lost.h"
#include "nat.h"
#include "nuke.h"
#include "plane.h"
#include "sect.h"
#include "ship.h"
#include "trade.h"
#include "treaty.h"
#include "types.h"
struct empobj {
/*
* initial part must match struct emptypedstr
* valid if EFF_TYPED is set in table's flags
*/
signed ef_type: 8;
unsigned seqno: 12;
unsigned generation: 12;
int uid;
time_t timestamp;
/* end of part matching struct emptypedstr */
natid own; /* valid if EFF_OWNER is in table's flags */
coord x; /* valid if EFF_XY is in table's flags */
coord y; /* valid if EFF_XY is in table's flags */
/* remaining are valid for sectors and units */
signed char type;
signed char effic;
signed char mobil;
unsigned char off;
/* remaining are valid for units */
short tech;
char group; /* valid if EFF_GROUP is in table's flags */
coord opx, opy;
short mission;
short radius;
};
union empobj_storage {
struct empobj gen;
struct comstr comm;
struct gamestr game;
struct lndstr land;
struct lonstr loan;
struct loststr lost;
struct natstr nat;
struct nukstr nuke;
struct plnstr plane;
struct realmstr realm;
struct sctstr sect;
struct shpstr ship;
struct trdstr trade;
struct trtstr treaty;
};
struct empobj_chr;
#define get_empobj(type, n, p) ef_read((type), (n), (p))
#define put_empobj(type, n, p) ef_write((type), (n), (p))
#define get_empobjp(type, n) ((struct empobj *)ef_ptr((type), (n)))
extern char *empobj_chr_name(struct empobj *gp);
extern int get_empobj_mob_max(int type);
extern int empobj_in_use(int, void *);
#endif