Markus Armbruster
49c24d7b78
Reading input fails after EOF and while the current command is aborted. Commands should detect that and fail. If a command neglects to do that in a loop, the loop can become infinite. This is especially bad after EOF, because then the client might not read output anymore. Output gets buffered until memory runs out. Mitigate such bugs by counting how many calls have failed in a row, oopsing on the 256th, and sleeping one minute from the 256th on.
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2008, 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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* player.h: Definitions for player information (threads)
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*
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* Known contributors to this file:
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* Dave Pare, 1994
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* Doug Hay, 1998
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*/
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#ifndef PLAYER_H
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#define PLAYER_H
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#include <time.h>
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#include "empthread.h"
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#include "misc.h"
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#include "queue.h"
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#include "types.h"
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/* nstat values */
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#define VIS bit(0)
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#define SANCT (bit(1) | VIS)
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#define NORM (bit(2) | VIS)
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#define GOD (bit(3) | NORM | VIS)
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#define EXEC bit(5)
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#define CAP bit(6)
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#define MONEY bit(7)
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struct player {
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struct emp_qelem queue;
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empth_t *proc;
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char hostaddr[32];
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char hostname[512]; /* may be empty */
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char client[128]; /* may be empty */
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char userid[32]; /* may be empty */
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int authenticated;
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natid cnum;
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int state;
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int flags;
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struct cmndstr *command; /* currently executing command */
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struct iop *iop;
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char combuf[1024]; /* command input buffer, UTF-8 */
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char *argp[128]; /* arguments, ASCII, valid if command */
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char *condarg; /* conditional, ASCII, valid if command */
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char *comtail[128]; /* start of args in combuf[] */
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time_t lasttime; /* when minleft was last debited */
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int minleft;
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int btused;
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int god;
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int owner;
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int nstat; /* command capabilities */
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int simulation; /* e.g. budget command */
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double dolcost;
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time_t curup; /* when last input was received */
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int aborted; /* interrupt cookie received? */
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int eof; /* EOF (cookie or real) received? */
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int recvfail; /* #recvclient() failures */
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int curid; /* for pr, cur. line's id, -1 none */
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char *map; /* pointer to in-mem map */
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char *bmap; /* pointer to in-mem bmap */
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};
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#define PS_INIT 0
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#define PS_PLAYING 1
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#define PS_SHUTDOWN 2
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/* player flags */
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enum {
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PF_UTF8 = bit(0) /* client wants UTF-8 */
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};
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#endif
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