hack/hack.save.c

   1 /*
   2  * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
   3  */
   4
   5 #ifndef lint
   6 static char rcsid[] = "$NetBSD: hack.save.c,v 1.5 1995/03/23 08:31:27 cgd Exp $";
   7 #endif /* not lint */
   8
   9 #include "hack.h"
  10 extern char genocided[60];      /* defined in Decl.c */
  11 extern char fut_geno[60];       /* idem */
  12 #include <signal.h>
  13 #include <unistd.h>
  14
  15 extern char SAVEF[], nul[];
  16 extern char pl_character[PL_CSIZ];
  17 extern struct obj *restobjchn();
  18 extern struct monst *restmonchn();
  19
  20 dosave(){
  21         if(dosave0(0)) {
  22                 settty("Be seeing you ...\n");
  23                 exit(0);
  24         }
  25 #ifdef lint
  26         return(0);
  27 #endif lint
  28 }
  29
  30 #ifndef NOSAVEONHANGUP
  31 hangup(){
  32         (void) dosave0(1);
  33         exit(1);
  34 }
  35 #endif NOSAVEONHANGUP
  36
  37 /* returns 1 if save successful */
  38 dosave0(hu) int hu; {
  39         register fd, ofd;
  40         int tmp;                /* not register ! */
  41
  42         (void) signal(SIGHUP, SIG_IGN);
  43         (void) signal(SIGINT, SIG_IGN);
  44         if((fd = creat(SAVEF, FMASK)) < 0) {
  45                 if(!hu) pline("Cannot open save file. (Continue or Quit)");
  46                 (void) unlink(SAVEF);           /* ab@unido */
  47                 return(0);
  48         }
  49         if(flags.moonphase == FULL_MOON)        /* ut-sally!fletcher */
  50                 u.uluck--;                      /* and unido!ab */
  51         savelev(fd,dlevel);
  52         saveobjchn(fd, invent);
  53         saveobjchn(fd, fcobj);
  54         savemonchn(fd, fallen_down);
  55         tmp = getuid();
  56         bwrite(fd, (char *) &tmp, sizeof tmp);
  57         bwrite(fd, (char *) &flags, sizeof(struct flag));
  58         bwrite(fd, (char *) &dlevel, sizeof dlevel);
  59         bwrite(fd, (char *) &maxdlevel, sizeof maxdlevel);
  60         bwrite(fd, (char *) &moves, sizeof moves);
  61         bwrite(fd, (char *) &u, sizeof(struct you));
  62         if(u.ustuck)
  63                 bwrite(fd, (char *) &(u.ustuck->m_id), sizeof u.ustuck->m_id);
  64         bwrite(fd, (char *) pl_character, sizeof pl_character);
  65         bwrite(fd, (char *) genocided, sizeof genocided);
  66         bwrite(fd, (char *) fut_geno, sizeof fut_geno);
  67         savenames(fd);
  68         for(tmp = 1; tmp <= maxdlevel; tmp++) {
  69                 extern int hackpid;
  70                 extern boolean level_exists[];
  71
  72                 if(tmp == dlevel || !level_exists[tmp]) continue;
  73                 glo(tmp);
  74                 if((ofd = open(lock, 0)) < 0) {
  75                     if(!hu) pline("Error while saving: cannot read %s.", lock);
  76                     (void) close(fd);
  77                     (void) unlink(SAVEF);
  78                     if(!hu) done("tricked");
  79                     return(0);
  80                 }
  81                 getlev(ofd, hackpid, tmp);
  82                 (void) close(ofd);
  83                 bwrite(fd, (char *) &tmp, sizeof tmp);  /* level number */
  84                 savelev(fd,tmp);                        /* actual level */
  85                 (void) unlink(lock);
  86         }
  87         (void) close(fd);
  88         glo(dlevel);
  89         (void) unlink(lock);    /* get rid of current level --jgm */
  90         glo(0);
  91         (void) unlink(lock);
  92         return(1);
  93 }
  94
  95 dorecover(fd)
  96 register fd;
  97 {
  98         register nfd;
  99         int tmp;                /* not a register ! */
 100         unsigned mid;           /* idem */
 101         struct obj *otmp;
 102         extern boolean restoring;
 103
 104         restoring = TRUE;
 105         getlev(fd, 0, 0);
 106         invent = restobjchn(fd);
 107         for(otmp = invent; otmp; otmp = otmp->nobj)
 108                 if(otmp->owornmask)
 109                         setworn(otmp, otmp->owornmask);
 110         fcobj = restobjchn(fd);
 111         fallen_down = restmonchn(fd);
 112         mread(fd, (char *) &tmp, sizeof tmp);
 113         if(tmp != getuid()) {           /* strange ... */
 114                 (void) close(fd);
 115                 (void) unlink(SAVEF);
 116                 puts("Saved game was not yours.");
 117                 restoring = FALSE;
 118                 return(0);
 119         }
 120         mread(fd, (char *) &flags, sizeof(struct flag));
 121         mread(fd, (char *) &dlevel, sizeof dlevel);
 122         mread(fd, (char *) &maxdlevel, sizeof maxdlevel);
 123         mread(fd, (char *) &moves, sizeof moves);
 124         mread(fd, (char *) &u, sizeof(struct you));
 125         if(u.ustuck)
 126                 mread(fd, (char *) &mid, sizeof mid);
 127         mread(fd, (char *) pl_character, sizeof pl_character);
 128         mread(fd, (char *) genocided, sizeof genocided);
 129         mread(fd, (char *) fut_geno, sizeof fut_geno);
 130         restnames(fd);
 131         while(1) {
 132                 if(read(fd, (char *) &tmp, sizeof tmp) != sizeof tmp)
 133                         break;
 134                 getlev(fd, 0, tmp);
 135                 glo(tmp);
 136                 if((nfd = creat(lock, FMASK)) < 0)
 137                         panic("Cannot open temp file %s!\n", lock);
 138                 savelev(nfd,tmp);
 139                 (void) close(nfd);
 140         }
 141         (void) lseek(fd, (off_t)0, 0);
 142         getlev(fd, 0, 0);
 143         (void) close(fd);
 144         (void) unlink(SAVEF);
 145         if(Punished) {
 146                 for(otmp = fobj; otmp; otmp = otmp->nobj)
 147                         if(otmp->olet == CHAIN_SYM) goto chainfnd;
 148                 panic("Cannot find the iron chain?");
 149         chainfnd:
 150                 uchain = otmp;
 151                 if(!uball){
 152                         for(otmp = fobj; otmp; otmp = otmp->nobj)
 153                                 if(otmp->olet == BALL_SYM && otmp->spe)
 154                                         goto ballfnd;
 155                         panic("Cannot find the iron ball?");
 156                 ballfnd:
 157                         uball = otmp;
 158                 }
 159         }
 160         if(u.ustuck) {
 161                 register struct monst *mtmp;
 162
 163                 for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
 164                         if(mtmp->m_id == mid) goto monfnd;
 165                 panic("Cannot find the monster ustuck.");
 166         monfnd:
 167                 u.ustuck = mtmp;
 168         }
 169 #ifndef QUEST
 170         setsee();  /* only to recompute seelx etc. - these weren't saved */
 171 #endif QUEST
 172         docrt();
 173         restoring = FALSE;
 174         return(1);
 175 }
 176
 177 struct obj *
 178 restobjchn(fd)
 179 register fd;
 180 {
 181         register struct obj *otmp, *otmp2;
 182         register struct obj *first = 0;
 183         int xl;
 184 #ifdef lint
 185         /* suppress "used before set" warning from lint */
 186         otmp2 = 0;
 187 #endif lint
 188         while(1) {
 189                 mread(fd, (char *) &xl, sizeof(xl));
 190                 if(xl == -1) break;
 191                 otmp = newobj(xl);
 192                 if(!first) first = otmp;
 193                 else otmp2->nobj = otmp;
 194                 mread(fd, (char *) otmp, (unsigned) xl + sizeof(struct obj));
 195                 if(!otmp->o_id) otmp->o_id = flags.ident++;
 196                 otmp2 = otmp;
 197         }
 198         if(first && otmp2->nobj){
 199                 impossible("Restobjchn: error reading objchn.");
 200                 otmp2->nobj = 0;
 201         }
 202         return(first);
 203 }
 204
 205 struct monst *
 206 restmonchn(fd)
 207 register fd;
 208 {
 209         register struct monst *mtmp, *mtmp2;
 210         register struct monst *first = 0;
 211         int xl;
 212
 213         struct permonst *monbegin;
 214         long differ;
 215
 216         mread(fd, (char *)&monbegin, sizeof(monbegin));
 217         differ = (char *)(&mons[0]) - (char *)(monbegin);
 218
 219 #ifdef lint
 220         /* suppress "used before set" warning from lint */
 221         mtmp2 = 0;
 222 #endif lint
 223         while(1) {
 224                 mread(fd, (char *) &xl, sizeof(xl));
 225                 if(xl == -1) break;
 226                 mtmp = newmonst(xl);
 227                 if(!first) first = mtmp;
 228                 else mtmp2->nmon = mtmp;
 229                 mread(fd, (char *) mtmp, (unsigned) xl + sizeof(struct monst));
 230                 if(!mtmp->m_id)
 231                         mtmp->m_id = flags.ident++;
 232                 mtmp->data = (struct permonst *)
 233                         ((char *) mtmp->data + differ);
 234                 if(mtmp->minvent)
 235                         mtmp->minvent = restobjchn(fd);
 236                 mtmp2 = mtmp;
 237         }
 238         if(first && mtmp2->nmon){
 239                 impossible("Restmonchn: error reading monchn.");
 240                 mtmp2->nmon = 0;
 241         }
 242         return(first);
 243 }