587 lines
14 KiB
C
587 lines
14 KiB
C
/* $NetBSD: hack.main.c,v 1.17 2011/08/06 20:42:43 dholland Exp $ */
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/*
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* Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
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* Amsterdam
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of the Stichting Centrum voor Wiskunde en
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* Informatica, nor the names of its contributors may be used to endorse or
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* promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__RCSID("$NetBSD: hack.main.c,v 1.17 2011/08/06 20:42:43 dholland Exp $");
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#endif /* not lint */
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#include <signal.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "hack.h"
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#include "extern.h"
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#ifdef QUEST
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#define gamename "quest"
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#else
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#define gamename "hack"
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#endif
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int (*afternmv)(void);
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int (*occupation)(void);
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const char *occtxt; /* defined when occupation != NULL */
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int hackpid; /* current pid */
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int locknum; /* max num of players */
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#ifdef DEF_PAGER
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const char *catmore; /* default pager */
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#endif
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char SAVEF[PL_NSIZ + 11] = "save/"; /* save/99999player */
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char *hname; /* name of the game (argv[0] of call) */
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static char obuf[BUFSIZ]; /* BUFSIZ is defined in stdio.h */
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int main(int, char *[]);
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static void chdirx(const char *, boolean);
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int
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main(int argc, char *argv[])
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{
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int fd;
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#ifdef CHDIR
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char *dir;
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#endif
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/* Check for dirty tricks with closed fds 0, 1, 2 */
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fd = open("/dev/null", O_RDONLY);
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if (fd < 3)
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exit(1);
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close(fd);
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hname = argv[0];
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hackpid = getpid();
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#ifdef CHDIR /* otherwise no chdir() */
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/*
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* See if we must change directory to the playground.
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* (Perhaps hack runs suid and playground is inaccessible
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* for the player.)
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* The environment variable HACKDIR is overridden by a
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* -d command line option (must be the first option given)
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*/
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dir = getenv("HACKDIR");
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if (argc > 1 && !strncmp(argv[1], "-d", 2)) {
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argc--;
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argv++;
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dir = argv[0] + 2;
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if (*dir == '=' || *dir == ':')
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dir++;
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if (!*dir && argc > 1) {
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argc--;
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argv++;
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dir = argv[0];
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}
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if (!*dir)
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error("Flag -d must be followed by a directory name.");
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}
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#endif
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/*
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* Who am i? Algorithm: 1. Use name as specified in HACKOPTIONS
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* 2. Use $USER or $LOGNAME (if 1. fails)
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* 3. Use getlogin() (if 2. fails)
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* The resulting name is overridden by command line options.
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* If everything fails, or if the resulting name is some generic
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* account like "games", "play", "player", "hack" then eventually
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* we'll ask him.
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* Note that we trust him here; it is possible to play under
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* somebody else's name.
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*/
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{
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char *s;
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initoptions();
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if (!*plname && (s = getenv("USER")))
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(void) strncpy(plname, s, sizeof(plname) - 1);
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if (!*plname && (s = getenv("LOGNAME")))
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(void) strncpy(plname, s, sizeof(plname) - 1);
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if (!*plname && (s = getlogin()))
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(void) strncpy(plname, s, sizeof(plname) - 1);
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}
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/*
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* Now we know the directory containing 'record' and
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* may do a prscore().
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*/
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if (argc > 1 && !strncmp(argv[1], "-s", 2)) {
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#ifdef CHDIR
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chdirx(dir, 0);
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#endif
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prscore(argc, argv);
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exit(0);
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}
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/*
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* It seems he really wants to play.
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* Remember tty modes, to be restored on exit.
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*/
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gettty();
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setbuf(stdout, obuf);
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setrandom();
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startup();
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cls();
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u.uhp = 1; /* prevent RIP on early quits */
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u.ux = FAR; /* prevent nscr() */
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(void) signal(SIGHUP, hang_up);
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/*
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* Find the creation date of this game,
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* so as to avoid restoring outdated savefiles.
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*/
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gethdate(hname);
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/*
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* We cannot do chdir earlier, otherwise gethdate will fail.
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*/
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#ifdef CHDIR
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chdirx(dir, 1);
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#endif
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/*
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* Process options.
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*/
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while (argc > 1 && argv[1][0] == '-') {
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argv++;
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argc--;
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switch (argv[0][1]) {
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#ifdef WIZARD
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case 'D':
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/* if(!strcmp(getlogin(), WIZARD)) */
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wizard = TRUE;
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/*
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* else printf("Sorry.\n");
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*/
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break;
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#endif
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#ifdef NEWS
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case 'n':
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flags.nonews = TRUE;
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break;
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#endif
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case 'u':
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if (argv[0][2])
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(void) strncpy(plname, argv[0] + 2, sizeof(plname) - 1);
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else if (argc > 1) {
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argc--;
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argv++;
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(void) strncpy(plname, argv[0], sizeof(plname) - 1);
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} else
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printf("Player name expected after -u\n");
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break;
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default:
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/* allow -T for Tourist, etc. */
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(void) strncpy(pl_character, argv[0] + 1,
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sizeof(pl_character) - 1);
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/* printf("Unknown option: %s\n", *argv); */
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}
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}
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if (argc > 1)
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locknum = atoi(argv[1]);
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#ifdef MAX_NR_OF_PLAYERS
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if (!locknum || locknum > MAX_NR_OF_PLAYERS)
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locknum = MAX_NR_OF_PLAYERS;
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#endif
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#ifdef DEF_PAGER
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if (((catmore = getenv("HACKPAGER")) == NULL &&
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(catmore = getenv("PAGER")) == NULL) ||
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catmore[0] == '\0')
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catmore = DEF_PAGER;
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#endif
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#ifdef MAIL
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getmailstatus();
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#endif
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#ifdef WIZARD
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if (wizard)
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(void) strcpy(plname, "wizard");
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else
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#endif
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if (!*plname || !strncmp(plname, "player", 4)
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|| !strncmp(plname, "games", 4))
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askname();
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plnamesuffix(); /* strip suffix from name; calls askname() */
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/* again if suffix was whole name */
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/* accepts any suffix */
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#ifdef WIZARD
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if (!wizard) {
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#endif
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/*
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* check for multiple games under the same name
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* (if !locknum) or check max nr of players (otherwise)
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*/
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(void) signal(SIGQUIT, SIG_IGN);
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(void) signal(SIGINT, SIG_IGN);
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if (!locknum)
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(void) strcpy(lock, plname);
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getlock(); /* sets lock if locknum != 0 */
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#ifdef WIZARD
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} else {
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char *sfoo;
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(void) strcpy(lock, plname);
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if ((sfoo = getenv("MAGIC")) != NULL)
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while (*sfoo) {
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switch (*sfoo++) {
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case 'n':
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(void) srandom(*sfoo++);
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break;
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}
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}
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if ((sfoo = getenv("GENOCIDED")) != NULL) {
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if (*sfoo == '!') {
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const struct permonst *pm = mons;
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char *gp = genocided;
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while (pm < mons + CMNUM + 2) {
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if (!strchr(sfoo, pm->mlet))
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*gp++ = pm->mlet;
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pm++;
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}
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*gp = 0;
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} else
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(void) strlcpy(genocided, sfoo,
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sizeof(genocided));
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(void) strcpy(fut_geno, genocided);
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}
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}
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#endif
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setftty();
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(void) snprintf(SAVEF, sizeof(SAVEF), "save/%d%s", getuid(), plname);
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regularize(SAVEF + 5); /* avoid . or / in name */
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if ((fd = open(SAVEF, O_RDONLY)) >= 0 &&
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(uptodate(fd) || unlink(SAVEF) == 666)) {
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(void) signal(SIGINT, done1);
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pline("Restoring old save file...");
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(void) fflush(stdout);
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if (!dorecover(fd))
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goto not_recovered;
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pline("Hello %s, welcome to %s!", plname, gamename);
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flags.move = 0;
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} else {
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not_recovered:
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fobj = fcobj = invent = 0;
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fmon = fallen_down = 0;
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ftrap = 0;
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fgold = 0;
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flags.ident = 1;
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init_objects();
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u_init();
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(void) signal(SIGINT, done1);
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mklev();
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u.ux = xupstair;
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u.uy = yupstair;
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(void) inshop();
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setsee();
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flags.botlx = 1;
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makedog();
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{
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struct monst *mtmp;
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if ((mtmp = m_at(u.ux, u.uy)) != NULL)
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mnexto(mtmp); /* riv05!a3 */
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}
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seemons();
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#ifdef NEWS
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if (flags.nonews || !readnews())
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/* after reading news we did docrt() already */
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#endif
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docrt();
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/* give welcome message before pickup messages */
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pline("Hello %s, welcome to %s!", plname, gamename);
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pickup(1);
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read_engr_at(u.ux, u.uy);
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flags.move = 1;
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}
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flags.moonphase = phase_of_the_moon();
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if (flags.moonphase == FULL_MOON) {
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pline("You are lucky! Full moon tonight.");
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u.uluck++;
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} else if (flags.moonphase == NEW_MOON) {
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pline("Be careful! New moon tonight.");
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}
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initrack();
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for (;;) {
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if (flags.move) { /* actual time passed */
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settrack();
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if (moves % 2 == 0 ||
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(!(Fast & ~INTRINSIC) && (!Fast || rn2(3)))) {
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movemon();
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if (!rn2(70))
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(void) makemon((struct permonst *) 0, 0, 0);
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}
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if (Glib)
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glibr();
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timeout();
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++moves;
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if (flags.time)
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flags.botl = 1;
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if (u.uhp < 1) {
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pline("You die...");
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done("died");
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}
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if (u.uhp * 10 < u.uhpmax && moves - wailmsg > 50) {
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wailmsg = moves;
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if (u.uhp == 1)
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pline("You hear the wailing of the Banshee...");
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else
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pline("You hear the howling of the CwnAnnwn...");
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}
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if (u.uhp < u.uhpmax) {
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if (u.ulevel > 9) {
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if (Regeneration || !(moves % 3)) {
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flags.botl = 1;
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u.uhp += rnd((int) u.ulevel - 9);
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if (u.uhp > u.uhpmax)
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u.uhp = u.uhpmax;
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}
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} else if (Regeneration ||
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(!(moves % (22 - u.ulevel * 2)))) {
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flags.botl = 1;
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u.uhp++;
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}
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}
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if (Teleportation && !rn2(85))
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tele();
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if (Searching && multi >= 0)
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(void) dosearch();
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gethungry();
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invault();
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amulet();
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}
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if (multi < 0) {
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if (!++multi) {
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if (nomovemsg)
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pline("%s", nomovemsg);
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else
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pline("You can move again.");
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nomovemsg = 0;
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if (afternmv)
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(*afternmv) ();
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afternmv = 0;
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}
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}
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find_ac();
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#ifndef QUEST
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if (!flags.mv || Blind)
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#endif
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{
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seeobjs();
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seemons();
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nscr();
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}
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if (flags.botl || flags.botlx)
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bot();
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flags.move = 1;
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if (multi >= 0 && occupation) {
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if (monster_nearby())
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stop_occupation();
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else if ((*occupation) () == 0)
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occupation = 0;
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continue;
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}
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if (multi > 0) {
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#ifdef QUEST
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if (flags.run >= 4)
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finddir();
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#endif
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lookaround();
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if (!multi) { /* lookaround may clear multi */
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flags.move = 0;
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continue;
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}
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if (flags.mv) {
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if (multi < COLNO && !--multi)
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flags.mv = flags.run = 0;
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domove();
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} else {
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--multi;
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rhack(save_cm);
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}
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} else if (multi == 0) {
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#ifdef MAIL
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ckmailstatus();
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#endif
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rhack(NULL);
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}
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if (multi && multi % 7 == 0)
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(void) fflush(stdout);
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}
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}
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void
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glo(int foo)
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{
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/* construct the string xlock.n */
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size_t pos;
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pos = 0;
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while (lock[pos] && lock[pos] != '.')
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pos++;
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(void) snprintf(lock + pos, sizeof(lock) - pos, ".%d", foo);
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}
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/*
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* plname is filled either by an option (-u Player or -uPlayer) or
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* explicitly (-w implies wizard) or by askname.
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* It may still contain a suffix denoting pl_character.
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*/
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void
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askname(void)
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{
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int c, ct;
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printf("\nWho are you? ");
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(void) fflush(stdout);
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ct = 0;
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while ((c = getchar()) != '\n') {
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if (c == EOF)
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error("End of input\n");
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/* some people get confused when their erase char is not ^H */
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if (c == '\010') {
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if (ct)
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ct--;
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continue;
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}
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if (c != '-')
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if (c < 'A' || (c > 'Z' && c < 'a') || c > 'z')
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c = '_';
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if (ct < (int)sizeof(plname) - 1)
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plname[ct++] = c;
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}
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plname[ct] = 0;
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if (ct == 0)
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askname();
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}
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/* VARARGS1 */
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void
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impossible(const char *s, ...)
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{
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va_list ap;
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va_start(ap, s);
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vpline(s, ap);
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va_end(ap);
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pline("Program in disorder - perhaps you'd better Quit.");
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}
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#ifdef CHDIR
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static void
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chdirx(const char *dir, boolean wr)
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{
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#ifdef SECURE
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if (dir /* User specified directory? */
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#ifdef HACKDIR
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&& strcmp(dir, HACKDIR) /* and not the default? */
|
|
#endif
|
|
) {
|
|
(void) setuid(getuid()); /* Ron Wessels */
|
|
(void) setgid(getgid());
|
|
}
|
|
#endif
|
|
|
|
#ifdef HACKDIR
|
|
if (dir == NULL)
|
|
dir = HACKDIR;
|
|
#endif
|
|
|
|
if (dir && chdir(dir) < 0) {
|
|
perror(dir);
|
|
error("Cannot chdir to %s.", dir);
|
|
}
|
|
/* warn the player if he cannot write the record file */
|
|
/* perhaps we should also test whether . is writable */
|
|
/* unfortunately the access systemcall is worthless */
|
|
if (wr) {
|
|
int fd;
|
|
|
|
if (dir == NULL)
|
|
dir = ".";
|
|
if ((fd = open(RECORD, O_RDWR)) < 0) {
|
|
printf("Warning: cannot write %s/%s", dir, RECORD);
|
|
getret();
|
|
} else
|
|
(void) close(fd);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void
|
|
stop_occupation(void)
|
|
{
|
|
if (occupation) {
|
|
pline("You stop %s.", occtxt);
|
|
occupation = 0;
|
|
}
|
|
}
|