505 lines
10 KiB
C
505 lines
10 KiB
C
/*
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* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
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*/
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#ifndef lint
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static char rcsid[] = "$NetBSD: hack.main.c,v 1.3 1995/03/23 08:30:35 cgd Exp $";
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#endif /* not lint */
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#include <stdio.h>
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#include <signal.h>
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#include "hack.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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extern char *getlogin(), *getenv();
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extern char plname[PL_NSIZ], pl_character[PL_CSIZ];
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extern struct permonst mons[CMNUM+2];
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extern char genocided[], fut_geno[];
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int (*afternmv)();
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int (*occupation)();
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char *occtxt; /* defined when occupation != NULL */
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void done1();
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void hangup();
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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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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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char obuf[BUFSIZ]; /* BUFSIZ is defined in stdio.h */
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extern char *nomovemsg;
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extern long wailmsg;
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#ifdef CHDIR
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static void chdirx();
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#endif
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main(argc,argv)
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int argc;
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char *argv[];
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{
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register int fd;
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#ifdef CHDIR
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register char *dir;
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#endif
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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 == ':') 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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{ register 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, hangup);
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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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/* else
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printf("Sorry.\n"); */
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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")) && !(catmore = getenv("PAGER")))
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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) (void) strcpy(plname, "wizard"); 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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register char *sfoo;
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(void) strcpy(lock,plname);
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if(sfoo = getenv("MAGIC"))
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while(*sfoo) {
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switch(*sfoo++) {
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case 'n': (void) srandom(*sfoo++);
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break;
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}
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}
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if(sfoo = getenv("GENOCIDED")){
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if(*sfoo == '!'){
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register struct permonst *pm = mons;
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register char *gp = genocided;
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while(pm < mons+CMNUM+2){
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if(!index(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) strcpy(genocided, sfoo);
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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) sprintf(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,0)) >= 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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{ register struct monst *mtmp;
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if(mtmp = m_at(u.ux, u.uy)) 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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extern struct monst *makemon();
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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) glibr();
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timeout();
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++moves;
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if(flags.time) 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)) tele();
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if(Searching && multi >= 0) (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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pline(nomovemsg ? nomovemsg :
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"You can move again.");
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nomovemsg = 0;
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if(afternmv) (*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) 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) 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((char *) 0);
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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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glo(foo)
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register foo;
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{
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/* construct the string xlock.n */
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register char *tf;
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tf = lock;
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while(*tf && *tf != '.') tf++;
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(void) sprintf(tf, ".%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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askname(){
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register 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) 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) 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') c = '_';
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if(ct < sizeof(plname)-1) plname[ct++] = c;
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}
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plname[ct] = 0;
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if(ct == 0) askname();
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}
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/*VARARGS1*/
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impossible(s,x1,x2)
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register char *s;
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{
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pline(s,x1,x2);
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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(dir, wr)
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char *dir;
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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? */
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#endif
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) {
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(void) setuid(getuid()); /* Ron Wessels */
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(void) setgid(getgid());
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}
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#endif
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#ifdef HACKDIR
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if(dir == NULL)
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dir = HACKDIR;
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#endif
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if(dir && chdir(dir) < 0) {
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perror(dir);
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error("Cannot chdir to %s.", dir);
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}
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/* warn the player if he cannot write the record file */
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/* perhaps we should also test whether . is writable */
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/* unfortunately the access systemcall is worthless */
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if(wr) {
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register fd;
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if(dir == NULL)
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dir = ".";
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if((fd = open(RECORD, 2)) < 0) {
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printf("Warning: cannot write %s/%s", dir, RECORD);
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getret();
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} else
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(void) close(fd);
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}
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}
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#endif
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stop_occupation()
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{
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if(occupation) {
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pline("You stop %s.", occtxt);
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occupation = 0;
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}
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}
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