/* $OpenBSD: hack.main.c,v 1.7 2001/01/28 23:41:44 niklas Exp $ */ /* * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */ #ifndef lint static char rcsid[] = "$OpenBSD: hack.main.c,v 1.7 2001/01/28 23:41:44 niklas Exp $"; #endif /* not lint */ #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 $LOGNAME or $USER (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("LOGNAME"))) (void) strncpy(plname, s, sizeof(plname)-1); if(!*plname && (s = getenv("USER"))) (void) strncpy(plname, s, sizeof(plname)-1); if(!*plname && (s = getlogin())) (void) strncpy(plname, s, sizeof(plname)-1); if(*plname) plname[sizeof(plname)-1] = '\0'; } /* * 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); umask(007); 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); plname[sizeof(plname)-1] = '\0'; } else if(argc > 1) { argc--; argv++; (void) strncpy(plname, argv[0], sizeof(plname)-1); plname[sizeof(plname)-1] = '\0'; } 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); plname[sizeof(pl_character)-1] = '\0'; /* 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(!strchr(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, O_RDONLY)) >= 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 ) { /* revoke */ setegid(getgid()); 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, O_RDWR)) < 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; } }