413 lines
9.3 KiB
C
413 lines
9.3 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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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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*
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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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*
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* xdump.c: Experimental extended dump
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*
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* Known contributors to this file:
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* Markus Armbruster, 2004-2006
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*/
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#include <config.h>
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#include <stddef.h>
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#include "misc.h"
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#include "file.h"
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#include "match.h"
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#include "news.h"
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#include "nsc.h"
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#include "optlist.h"
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#include "version.h"
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#include "commands.h"
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/*
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* Dump everything under the sun
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*
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* Static game data (configuration):
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* - Item characteristics: ichr[]
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* - Land unit characteristics: lchr[]
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* - Nuke characteristics: nchr[]
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* - Plane characteristics: plchr[]
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* - Product characteristics: pchr[]
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* - Sector designation characteristics: dchr[]
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* - Sector infrastructure characteristics: intrchr[]
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* - Ship characteristics: mchr[]
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* - News item characteristics: rpt[]
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* - News page headings: page_headings[]
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* - Commands: player_coms[] (TODO)
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* - Configuration: configkeys[]
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*
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* Dynamic game data:
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* - Sectors: EF_SECTOR (superseding dump)
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* - Land units: EF_LAND (superseding ldump)
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* - Lost: EF_LOST (superseding lost)
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* - Nukes: EF_NUKE (superseding ndump)
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* - Planes: EF_PLANE (superseding pdump)
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* - Ships: EF_SHIP (superseding sdump)
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* - News: EF_NEWS
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* - Treaties: EF_TREATY
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* - Power: EF_POWER (TODO)
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* - Nations: EF_NATION
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* - Loans: EF_LOAN
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* - Map: EF_MAP (TODO)
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* - Bmap: EF_BMAP (TODO)
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* - Market: EF_COMM
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*/
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/* FIXME document dump format */
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/* TODO don't dump stuff that's useless due to options */
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/*
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* Evaluate a attribute of an object into VAL, return VAL.
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* TYPE is the attribute's type.
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* PTR points to the context object.
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* The attribute is stored there at offset OFF + IDX * S, where S is
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* its size.
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*/
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static struct valstr *
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xdeval(struct valstr *val, nsc_type type, void *ptr, ptrdiff_t off, int idx)
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{
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val->val_type = type;
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val->val_cat = NSC_OFF;
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val->val_as.sym.off = off;
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val->val_as.sym.idx = idx;
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nstr_exec_val(val, player->cnum, ptr, NSC_NOTYPE);
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return val; /* FIXME nstr_exec_val() should return VAL */
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}
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/* Dump VAL prefixed with SEP, return " ". */
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static char *
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xdprval(struct valstr *val, char *sep)
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{
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unsigned char *s, *e, *l;
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switch (val->val_type) {
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case NSC_TYPEID:
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case NSC_LONG:
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pr("%s%ld", sep, val->val_as.lng);
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break;
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case NSC_DOUBLE:
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pr("%s%#g", sep, val->val_as.dbl);
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break;
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case NSC_STRING:
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s = (unsigned char *)val->val_as.str.base;
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if (s) {
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pr("%s\"", sep);
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l = s + val->val_as.str.maxsz;
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/* FIXME maxsz == INT_MAX ! */
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for (;;) {
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for (e=s; e<l && *e != '"' && *e != '\\' && isgraph(*e); ++e) ;
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pr("%.*s", (int)(e-s), s);
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if (e < l && *e)
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pr("\\%03o", *e++);
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else
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break;
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s = e;
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}
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pr("\"");
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} else
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pr("%snil", sep);
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break;
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default:
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CANT_HAPPEN("Bad VAL type");
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pr("0");
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}
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return " ";
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}
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/*
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* Dump field values of a context object.
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* CA[] describes fields.
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* PTR points to context object.
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*/
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static void
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xdflds(struct castr ca[], void *ptr)
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{
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int i, j, n;
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struct valstr val;
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char *sep = "";
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for (i = 0; ca[i].ca_name; ++i) {
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if (ca[i].ca_flags & NSC_DEITY && !player->god)
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continue;
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if (ca[i].ca_flags & NSC_EXTRA)
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continue;
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n = ca[i].ca_type != NSC_STRINGY ? ca[i].ca_len : 0;
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j = 0;
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do {
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xdeval(&val, ca[i].ca_type, ptr, ca[i].ca_off, j);
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sep = xdprval(&val, sep);
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} while (++j < n);
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}
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}
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/*
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* Dump header for dump NAME.
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* If META, it's for the meta-data dump rather than the data dump.
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*/
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static void
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xdhdr(char *name, int meta)
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{
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pr("XDUMP %s%s %ld\n", meta ? "meta " : "", name, (long)time(NULL));
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}
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/* Dump footer for a dump that dumped N objects. */
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static void
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xdftr(int n)
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{
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pr("/%d\n", n);
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}
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/*
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* Is object P of type TYPE visible to the player?
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* TODO: Fold this into interators.
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*/
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static int
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xdvisible(int type, void *p)
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{
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struct genitem *gp = p;
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struct trtstr *tp = p;
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struct lonstr *lp = p;
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struct natstr *natp;
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int tlev;
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switch (type) {
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case EF_SECTOR:
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return gp->own == player->cnum || player->god;
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case EF_SHIP:
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case EF_PLANE:
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case EF_LAND:
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case EF_NUKE:
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case EF_LOST:
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return gp->own != 0 && (gp->own == player->cnum || player->god);
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case EF_NATION:
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if (gp->own == player->cnum || player->god)
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return 1;
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/* fall through */
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case EF_COUNTRY:
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return ((struct natstr *)p)->nat_stat != STAT_UNUSED;
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case EF_NEWS:
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return ((struct nwsstr *)p)->nws_vrb != 0
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&& (!opt_HIDDEN || player->god); /* FIXME */
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case EF_TREATY:
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return tp->trt_status != TS_FREE
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&& (tp->trt_cna == player->cnum || tp->trt_cnb == player->cnum
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|| player->god);
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case EF_LOAN:
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if (lp->l_status == LS_FREE)
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return 0;
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if (lp->l_status == LS_SIGNED)
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return 1;
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return lp->l_loner == player->cnum || lp->l_lonee == player->cnum
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|| player->god;
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case EF_TRADE:
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case EF_COMM:
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return gp->own != 0;
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case EF_SHIP_CHR:
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tlev = ((struct mchrstr *)p)->m_tech;
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goto tech;
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case EF_PLANE_CHR:
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tlev = ((struct plchrstr *)p)->pl_tech;
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goto tech;
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case EF_LAND_CHR:
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tlev = ((struct lchrstr *)p)->l_tech;
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tech:
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natp = getnatp(player->cnum);
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return player->god || tlev <= (int)(1.25 * natp->nat_level[NAT_TLEV]);
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case EF_NUKE_CHR:
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tlev = ((struct nchrstr *)p)->n_tech;
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if (opt_DRNUKE) {
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natp = getnatp(player->cnum);
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if (tlev > (int)((int)(1.25 * natp->nat_level[NAT_RLEV])
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/ drnuke_const))
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return player->god;
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}
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goto tech;
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case EF_NEWS_CHR:
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return ((struct rptstr *)p)->r_newspage != 0;
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case EF_TABLE:
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return ((struct empfile *)p)->cadef != NULL;
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default:
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return 1;
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}
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}
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/*
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* Dump items of type TYPE selected by ARG.
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* Return RET_OK on success, RET_SYN on error.
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*/
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static int
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xditem(int type, char *arg)
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{
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int check_owner = !player->god && (ef_flags(type) & EFF_OWNER) != 0;
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struct castr *ca;
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struct nstr_item ni;
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int n;
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char buf[2048]; /* FIXME buffer size? */
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ca = ef_cadef(type);
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if (!ca)
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return RET_SYN;
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if (!snxtitem(&ni, type, arg))
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return RET_SYN;
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xdhdr(ef_nameof(type), 0);
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n = 0;
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while (nxtitem(&ni, buf)) {
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if (!xdvisible(type, buf))
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continue;
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++n;
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xdflds(ca, buf);
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pr("\n");
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}
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xdftr(n);
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return RET_OK;
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}
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/*
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* Dump meta-data for items of type TYPE.
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* Return RET_OK.
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*/
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static int
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xdmeta(int type)
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{
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struct castr *ca = ef_cadef(type);
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int i;
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int n = 0;
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if (!ca)
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return RET_SYN;
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xdhdr(ef_nameof(type), 1);
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for (i = 0; ca[i].ca_name; i++) {
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if (ca[i].ca_flags & NSC_DEITY && !player->god)
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continue;
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if (ca[i].ca_flags & NSC_EXTRA)
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continue;
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xdflds(mdchr_ca, &ca[i]);
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pr("\n");
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n++;
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}
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xdftr(n);
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return RET_OK;
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}
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/*
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* Dump configkeys[], return RET_OK.
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* If META, dump meta-data rather than data.
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*/
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static int
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xdver(int meta)
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{
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static struct castr vers_ca = {
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NSC_STRINGY, 0, sizeof(PACKAGE_STRING), 0, "version", EF_BAD
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};
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struct keymatch *kp;
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char *sep;
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int n;
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struct castr ca;
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struct valstr val;
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xdhdr("version", meta);
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if (meta) {
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n = 0;
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xdflds(mdchr_ca, &vers_ca);
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pr("\n");
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n++;
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for (kp = configkeys; kp->km_key; ++kp) {
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if (kp->km_type != NSC_NOTYPE && !(kp->km_flags & KM_INTERNAL)) {
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ca.ca_type = kp->km_type;
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ca.ca_flags = 0;
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ca.ca_len = 0;
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ca.ca_off = 0;
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ca.ca_name = kp->km_key;
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ca.ca_table = EF_BAD;
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xdflds(mdchr_ca, &ca);
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pr("\n");
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n++;
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}
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}
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xdftr(n);
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return RET_OK;
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}
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xdeval(&val, vers_ca.ca_type, version, 0, 0);
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sep = xdprval(&val, "");
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for (kp = configkeys; kp->km_key; ++kp) {
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if (kp->km_type != NSC_NOTYPE && !(kp->km_flags & KM_INTERNAL)) {
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xdeval(&val, kp->km_type, kp->km_data, 0, 0);
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sep = xdprval(&val, sep);
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}
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}
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pr("\n");
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xdftr(1);
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return RET_OK;
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}
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/* Experimental extended dump command */
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int
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xdump(void)
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{
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char *p;
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char buf[1024];
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int type;
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int meta = 0;
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if (!opt_GUINEA_PIGS) {
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pr("You are not a guinea pig!\n");
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return RET_FAIL;
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}
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p = getstarg(player->argp[1], "What? ", buf);
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if (p && strcmp(p, "meta") == 0) {
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meta = 1;
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p = getstarg(player->argp[2], "What? ", buf);
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}
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if (!p)
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return RET_SYN;
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type = isdigit(p[0]) ? atoi(p) : ef_byname(p);
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if (type >= 0 && type < EF_MAX) {
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if (meta)
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return xdmeta(type);
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else
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return xditem(type, player->argp[2]);
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} else if (!strncmp(p, "ver", strlen(p))) {
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return xdver(meta);
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}
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return RET_SYN;
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}
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