initial import of 386bsd-0.1 sources

1 files changed, 499 insertions, 0 deletions

diff --git a/hack/hack.main.c b/hack/hack.main.c
new file mode 100644
index 00000000..d2d59a2f
--- /dev/null
+++ b/hack/hack.main.c
@@ -0,0 +1,499 @@
+/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
+/* hack.main.c - version 1.0.3 */
+
+#include <stdio.h>
+#include <signal.h>
+#include "hack.h"
+
+#ifdef QUEST
+#define	gamename	"quest"
+#else
+#define	gamename	"hack"
+#endif
+
+extern char *getlogin(), *getenv();
+extern char plname[PL_NSIZ], pl_character[PL_CSIZ];
+extern struct permonst mons[CMNUM+2];
+extern char genocided[], fut_geno[];
+
+int (*afternmv)();
+int (*occupation)();
+char *occtxt;			/* defined when occupation != NULL */
+
+void done1();
+void hangup();
+
+int hackpid;				/* current pid */
+int locknum;				/* max num of players */
+#ifdef DEF_PAGER
+char *catmore;				/* default pager */
+#endif
+char SAVEF[PL_NSIZ + 11] = "save/";	/* save/99999player */
+char *hname;		/* name of the game (argv[0] of call) */
+char obuf[BUFSIZ];	/* BUFSIZ is defined in stdio.h */
+
+extern char *nomovemsg;
+extern long wailmsg;
+
+#ifdef CHDIR
+static void chdirx();
+#endif
+
+main(argc,argv)
+int argc;
+char *argv[];
+{
+	register int fd;
+#ifdef CHDIR
+	register char *dir;
+#endif
+
+	hname = argv[0];
+	hackpid = getpid();
+
+#ifdef CHDIR			/* otherwise no chdir() */
+	/*
+	 * See if we must change directory to the playground.
+	 * (Perhaps hack runs suid and playground is inaccessible
+	 *  for the player.)
+	 * The environment variable HACKDIR is overridden by a
+	 *  -d command line option (must be the first option given)
+	 */
+
+	dir = getenv("HACKDIR");
+	if(argc > 1 && !strncmp(argv[1], "-d", 2)) {
+		argc--;
+		argv++;
+		dir = argv[0]+2;
+		if(*dir == '=' || *dir == ':') dir++;
+		if(!*dir && argc > 1) {
+			argc--;
+			argv++;
+			dir = argv[0];
+		}
+		if(!*dir)
+		    error("Flag -d must be followed by a directory name.");
+	}
+#endif
+
+	/*
+	 * Who am i? Algorithm: 1. Use name as specified in HACKOPTIONS
+	 *			2. Use $USER or $LOGNAME	(if 1. fails)
+	 *			3. Use getlogin()		(if 2. fails)
+	 * The resulting name is overridden by command line options.
+	 * If everything fails, or if the resulting name is some generic
+	 * account like "games", "play", "player", "hack" then eventually
+	 * we'll ask him.
+	 * Note that we trust him here; it is possible to play under
+	 * somebody else's name.
+	 */
+	{ register char *s;
+
+	  initoptions();
+	  if(!*plname && (s = getenv("USER")))
+		(void) strncpy(plname, s, sizeof(plname)-1);
+	  if(!*plname && (s = getenv("LOGNAME")))
+		(void) strncpy(plname, s, sizeof(plname)-1);
+	  if(!*plname && (s = getlogin()))
+		(void) strncpy(plname, s, sizeof(plname)-1);
+	}
+
+	/*
+	 * Now we know the directory containing 'record' and
+	 * may do a prscore().
+	 */
+	if(argc > 1 && !strncmp(argv[1], "-s", 2)) {
+#ifdef CHDIR
+		chdirx(dir,0);
+#endif
+		prscore(argc, argv);
+		exit(0);
+	}
+
+	/*
+	 * It seems he really wants to play.
+	 * Remember tty modes, to be restored on exit.
+	 */
+	gettty();
+	setbuf(stdout,obuf);
+	setrandom();
+	startup();
+	cls();
+	u.uhp = 1;	/* prevent RIP on early quits */
+	u.ux = FAR;	/* prevent nscr() */
+	(void) signal(SIGHUP, hangup);
+
+	/*
+	 * Find the creation date of this game,
+	 * so as to avoid restoring outdated savefiles.
+	 */
+	gethdate(hname);
+
+	/*
+	 * We cannot do chdir earlier, otherwise gethdate will fail.
+	 */
+#ifdef CHDIR
+	chdirx(dir,1);
+#endif
+
+	/*
+	 * Process options.
+	 */
+	while(argc > 1 && argv[1][0] == '-'){
+		argv++;
+		argc--;
+		switch(argv[0][1]){
+#ifdef WIZARD
+		case 'D':
+/*			if(!strcmp(getlogin(), WIZARD)) */
+				wizard = TRUE;
+/*			else
+				printf("Sorry.\n"); */
+			break;
+#endif
+#ifdef NEWS
+		case 'n':
+			flags.nonews = TRUE;
+			break;
+#endif
+		case 'u':
+			if(argv[0][2])
+			  (void) strncpy(plname, argv[0]+2, sizeof(plname)-1);
+			else if(argc > 1) {
+			  argc--;
+			  argv++;
+			  (void) strncpy(plname, argv[0], sizeof(plname)-1);
+			} else
+				printf("Player name expected after -u\n");
+			break;
+		default:
+			/* allow -T for Tourist, etc. */
+			(void) strncpy(pl_character, argv[0]+1,
+				sizeof(pl_character)-1);
+
+			/* printf("Unknown option: %s\n", *argv); */
+		}
+	}
+
+	if(argc > 1)
+		locknum = atoi(argv[1]);
+#ifdef MAX_NR_OF_PLAYERS
+	if(!locknum || locknum > MAX_NR_OF_PLAYERS)
+		locknum = MAX_NR_OF_PLAYERS;
+#endif
+#ifdef DEF_PAGER
+	if(!(catmore = getenv("HACKPAGER")) && !(catmore = getenv("PAGER")))
+		catmore = DEF_PAGER;
+#endif
+#ifdef MAIL
+	getmailstatus();
+#endif
+#ifdef WIZARD
+	if(wizard) (void) strcpy(plname, "wizard"); else
+#endif
+	if(!*plname || !strncmp(plname, "player", 4)
+		    || !strncmp(plname, "games", 4))
+		askname();
+	plnamesuffix();		/* strip suffix from name; calls askname() */
+				/* again if suffix was whole name */
+				/* accepts any suffix */
+#ifdef WIZARD
+	if(!wizard) {
+#endif
+		/*
+		 * check for multiple games under the same name
+		 * (if !locknum) or check max nr of players (otherwise)
+		 */
+		(void) signal(SIGQUIT,SIG_IGN);
+		(void) signal(SIGINT,SIG_IGN);
+		if(!locknum)
+			(void) strcpy(lock,plname);
+		getlock();	/* sets lock if locknum != 0 */
+#ifdef WIZARD
+	} else {
+		register char *sfoo;
+		(void) strcpy(lock,plname);
+		if(sfoo = getenv("MAGIC"))
+			while(*sfoo) {
+				switch(*sfoo++) {
+				case 'n': (void) srandom(*sfoo++);
+					break;
+				}
+			}
+		if(sfoo = getenv("GENOCIDED")){
+			if(*sfoo == '!'){
+				register struct permonst *pm = mons;
+				register char *gp = genocided;
+
+				while(pm < mons+CMNUM+2){
+					if(!index(sfoo, pm->mlet))
+						*gp++ = pm->mlet;
+					pm++;
+				}
+				*gp = 0;
+			} else
+				(void) strcpy(genocided, sfoo);
+			(void) strcpy(fut_geno, genocided);
+		}
+	}
+#endif
+	setftty();
+	(void) sprintf(SAVEF, "save/%d%s", getuid(), plname);
+	regularize(SAVEF+5);		/* avoid . or / in name */
+	if((fd = open(SAVEF,0)) >= 0 &&
+	   (uptodate(fd) || unlink(SAVEF) == 666)) {
+		(void) signal(SIGINT,done1);
+		pline("Restoring old save file...");
+		(void) fflush(stdout);
+		if(!dorecover(fd))
+			goto not_recovered;
+		pline("Hello %s, welcome to %s!", plname, gamename);
+		flags.move = 0;
+	} else {
+not_recovered:
+		fobj = fcobj = invent = 0;
+		fmon = fallen_down = 0;
+		ftrap = 0;
+		fgold = 0;
+		flags.ident = 1;
+		init_objects();
+		u_init();
+
+		(void) signal(SIGINT,done1);
+		mklev();
+		u.ux = xupstair;
+		u.uy = yupstair;
+		(void) inshop();
+		setsee();
+		flags.botlx = 1;
+		makedog();
+		{ register struct monst *mtmp;
+		  if(mtmp = m_at(u.ux, u.uy)) mnexto(mtmp);	/* riv05!a3 */
+		}
+		seemons();
+#ifdef NEWS
+		if(flags.nonews || !readnews())
+			/* after reading news we did docrt() already */
+#endif
+			docrt();
+
+		/* give welcome message before pickup messages */
+		pline("Hello %s, welcome to %s!", plname, gamename);
+
+		pickup(1);
+		read_engr_at(u.ux,u.uy);
+		flags.move = 1;
+	}
+
+	flags.moonphase = phase_of_the_moon();
+	if(flags.moonphase == FULL_MOON) {
+		pline("You are lucky! Full moon tonight.");
+		u.uluck++;
+	} else if(flags.moonphase == NEW_MOON) {
+		pline("Be careful! New moon tonight.");
+	}
+
+	initrack();
+
+	for(;;) {
+		if(flags.move) {	/* actual time passed */
+
+			settrack();
+
+			if(moves%2 == 0 ||
+			  (!(Fast & ~INTRINSIC) && (!Fast || rn2(3)))) {
+				extern struct monst *makemon();
+				movemon();
+				if(!rn2(70))
+				    (void) makemon((struct permonst *)0, 0, 0);
+			}
+			if(Glib) glibr();
+			timeout();
+			++moves;
+			if(flags.time) flags.botl = 1;
+			if(u.uhp < 1) {
+				pline("You die...");
+				done("died");
+			}
+			if(u.uhp*10 < u.uhpmax && moves-wailmsg > 50){
+			    wailmsg = moves;
+			    if(u.uhp == 1)
+			    pline("You hear the wailing of the Banshee...");
+			    else
+			    pline("You hear the howling of the CwnAnnwn...");
+			}
+			if(u.uhp < u.uhpmax) {
+				if(u.ulevel > 9) {
+					if(Regeneration || !(moves%3)) {
+					    flags.botl = 1;
+					    u.uhp += rnd((int) u.ulevel-9);
+					    if(u.uhp > u.uhpmax)
+						u.uhp = u.uhpmax;
+					}
+				} else if(Regeneration ||
+					(!(moves%(22-u.ulevel*2)))) {
+					flags.botl = 1;
+					u.uhp++;
+				}
+			}
+			if(Teleportation && !rn2(85)) tele();
+			if(Searching && multi >= 0) (void) dosearch();
+			gethungry();
+			invault();
+			amulet();
+		}
+		if(multi < 0) {
+			if(!++multi){
+				pline(nomovemsg ? nomovemsg :
+					"You can move again.");
+				nomovemsg = 0;
+				if(afternmv) (*afternmv)();
+				afternmv = 0;
+			}
+		}
+
+		find_ac();
+#ifndef QUEST
+		if(!flags.mv || Blind)
+#endif
+		{
+			seeobjs();
+			seemons();
+			nscr();
+		}
+		if(flags.botl || flags.botlx) bot();
+
+		flags.move = 1;
+
+		if(multi >= 0 && occupation) {
+			if(monster_nearby())
+				stop_occupation();
+			else if ((*occupation)() == 0)
+				occupation = 0;
+			continue;
+		}
+
+		if(multi > 0) {
+#ifdef QUEST
+			if(flags.run >= 4) finddir();
+#endif
+			lookaround();
+			if(!multi) {	/* lookaround may clear multi */
+				flags.move = 0;
+				continue;
+			}
+			if(flags.mv) {
+				if(multi < COLNO && !--multi)
+					flags.mv = flags.run = 0;
+				domove();
+			} else {
+				--multi;
+				rhack(save_cm);
+			}
+		} else if(multi == 0) {
+#ifdef MAIL
+			ckmailstatus();
+#endif
+			rhack((char *) 0);
+		}
+		if(multi && multi%7 == 0)
+			(void) fflush(stdout);
+	}
+}
+
+glo(foo)
+register foo;
+{
+	/* construct the string  xlock.n  */
+	register char *tf;
+
+	tf = lock;
+	while(*tf && *tf != '.') tf++;
+	(void) sprintf(tf, ".%d", foo);
+}
+
+/*
+ * plname is filled either by an option (-u Player  or  -uPlayer) or
+ * explicitly (-w implies wizard) or by askname.
+ * It may still contain a suffix denoting pl_character.
+ */
+askname(){
+register int c,ct;
+	printf("\nWho are you? ");
+	(void) fflush(stdout);
+	ct = 0;
+	while((c = getchar()) != '\n'){
+		if(c == EOF) error("End of input\n");
+		/* some people get confused when their erase char is not ^H */
+		if(c == '\010') {
+			if(ct) ct--;
+			continue;
+		}
+		if(c != '-')
+		if(c < 'A' || (c > 'Z' && c < 'a') || c > 'z') c = '_';
+		if(ct < sizeof(plname)-1) plname[ct++] = c;
+	}
+	plname[ct] = 0;
+	if(ct == 0) askname();
+}
+
+/*VARARGS1*/
+impossible(s,x1,x2)
+register char *s;
+{
+	pline(s,x1,x2);
+	pline("Program in disorder - perhaps you'd better Quit.");
+}
+
+#ifdef CHDIR
+static void
+chdirx(dir, wr)
+char *dir;
+boolean wr;
+{
+
+#ifdef SECURE
+	if(dir					/* User specified directory? */
+#ifdef HACKDIR
+	       && 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) {
+	    register fd;
+
+	    if(dir == NULL)
+		dir = ".";
+	    if((fd = open(RECORD, 2)) < 0) {
+		printf("Warning: cannot write %s/%s", dir, RECORD);
+		getret();
+	    } else
+		(void) close(fd);
+	}
+}
+#endif
+
+stop_occupation()
+{
+	if(occupation) {
+		pline("You stop %s.", occtxt);
+		occupation = 0;
+	}
+}