hack/hack.save.c

   1 /*
   2  * Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
   3  */
   4
   5 #ifndef lint
   6 static char rcsid[] = "$Id: hack.save.c,v 1.4 1994/03/28 11:21:12 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
  14 extern char SAVEF[], nul[];
  15 extern char pl_character[PL_CSIZ];
  16 extern struct obj *restobjchn();
  17 extern struct monst *restmonchn();
  18
  19 dosave(){
  20         if(dosave0(0)) {
  21                 settty("Be seeing you ...\n");
  22                 exit(0);
  23         }
  24 #ifdef lint
  25         return(0);
  26 #endif lint
  27 }
  28
  29 #ifndef NOSAVEONHANGUP
  30 hangup(){
  31         (void) dosave0(1);
  32         exit(1);
  33 }
  34 #endif NOSAVEONHANGUP
  35
  36 /* returns 1 if save successful */
  37 dosave0(hu) int hu; {
  38         register fd, ofd;
  39         int tmp;                /* not register ! */
  40
  41         (void) signal(SIGHUP, SIG_IGN);
  42         (void) signal(SIGINT, SIG_IGN);
  43         if((fd = creat(SAVEF, FMASK)) < 0) {
  44                 if(!hu) pline("Cannot open save file. (Continue or Quit)");
  45                 (void) unlink(SAVEF);           /* ab@unido */
  46                 return(0);
  47         }
  48         if(flags.moonphase == FULL_MOON)        /* ut-sally!fletcher */
  49                 u.uluck--;                      /* and unido!ab */
  50         savelev(fd,dlevel);
  51         saveobjchn(fd, invent);
  52         saveobjchn(fd, fcobj);
  53         savemonchn(fd, fallen_down);
  54         tmp = getuid();
  55         bwrite(fd, (char *) &tmp, sizeof tmp);
  56         bwrite(fd, (char *) &flags, sizeof(struct flag));
  57         bwrite(fd, (char *) &dlevel, sizeof dlevel);
  58         bwrite(fd, (char *) &maxdlevel, sizeof maxdlevel);
  59         bwrite(fd, (char *) &moves, sizeof moves);
  60         bwrite(fd, (char *) &u, sizeof(struct you));
  61         if(u.ustuck)
  62                 bwrite(fd, (char *) &(u.ustuck->m_id), sizeof u.ustuck->m_id);
  63         bwrite(fd, (char *) pl_character, sizeof pl_character);
  64         bwrite(fd, (char *) genocided, sizeof genocided);
  65         bwrite(fd, (char *) fut_geno, sizeof fut_geno);
  66         savenames(fd);
  67         for(tmp = 1; tmp <= maxdlevel; tmp++) {
  68                 extern int hackpid;
  69                 extern boolean level_exists[];
  70
  71                 if(tmp == dlevel || !level_exists[tmp]) continue;
  72                 glo(tmp);
  73                 if((ofd = open(lock, 0)) < 0) {
  74                     if(!hu) pline("Error while saving: cannot read %s.", lock);
  75                     (void) close(fd);
  76                     (void) unlink(SAVEF);
  77                     if(!hu) done("tricked");
  78                     return(0);
  79                 }
  80                 getlev(ofd, hackpid, tmp);
  81                 (void) close(ofd);
  82                 bwrite(fd, (char *) &tmp, sizeof tmp);  /* level number */
  83                 savelev(fd,tmp);                        /* actual level */
  84                 (void) unlink(lock);
  85         }
  86         (void) close(fd);
  87         glo(dlevel);
  88         (void) unlink(lock);    /* get rid of current level --jgm */
  89         glo(0);
  90         (void) unlink(lock);
  91         return(1);
  92 }
  93
  94 dorecover(fd)
  95 register fd;
  96 {
  97         register nfd;
  98         int tmp;                /* not a register ! */
  99         unsigned mid;           /* idem */
 100         struct obj *otmp;
 101         extern boolean restoring;
 102
 103         restoring = TRUE;
 104         getlev(fd, 0, 0);
 105         invent = restobjchn(fd);
 106         for(otmp = invent; otmp; otmp = otmp->nobj)
 107                 if(otmp->owornmask)
 108                         setworn(otmp, otmp->owornmask);
 109         fcobj = restobjchn(fd);
 110         fallen_down = restmonchn(fd);
 111         mread(fd, (char *) &tmp, sizeof tmp);
 112         if(tmp != getuid()) {           /* strange ... */
 113                 (void) close(fd);
 114                 (void) unlink(SAVEF);
 115                 puts("Saved game was not yours.");
 116                 restoring = FALSE;
 117                 return(0);
 118         }
 119         mread(fd, (char *) &flags, sizeof(struct flag));
 120         mread(fd, (char *) &dlevel, sizeof dlevel);
 121         mread(fd, (char *) &maxdlevel, sizeof maxdlevel);
 122         mread(fd, (char *) &moves, sizeof moves);
 123         mread(fd, (char *) &u, sizeof(struct you));
 124         if(u.ustuck)
 125                 mread(fd, (char *) &mid, sizeof mid);
 126         mread(fd, (char *) pl_character, sizeof pl_character);
 127         mread(fd, (char *) genocided, sizeof genocided);
 128         mread(fd, (char *) fut_geno, sizeof fut_geno);
 129         restnames(fd);
 130         while(1) {
 131                 if(read(fd, (char *) &tmp, sizeof tmp) != sizeof tmp)
 132                         break;
 133                 getlev(fd, 0, tmp);
 134                 glo(tmp);
 135                 if((nfd = creat(lock, FMASK)) < 0)
 136                         panic("Cannot open temp file %s!\n", lock);
 137                 savelev(nfd,tmp);
 138                 (void) close(nfd);
 139         }
 140         (void) lseek(fd, 0, 0);
 141         getlev(fd, 0, 0);
 142         (void) close(fd);
 143         (void) unlink(SAVEF);
 144         if(Punished) {
 145                 for(otmp = fobj; otmp; otmp = otmp->nobj)
 146                         if(otmp->olet == CHAIN_SYM) goto chainfnd;
 147                 panic("Cannot find the iron chain?");
 148         chainfnd:
 149                 uchain = otmp;
 150                 if(!uball){
 151                         for(otmp = fobj; otmp; otmp = otmp->nobj)
 152                                 if(otmp->olet == BALL_SYM && otmp->spe)
 153                                         goto ballfnd;
 154                         panic("Cannot find the iron ball?");
 155                 ballfnd:
 156                         uball = otmp;
 157                 }
 158         }
 159         if(u.ustuck) {
 160                 register struct monst *mtmp;
 161
 162                 for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
 163                         if(mtmp->m_id == mid) goto monfnd;
 164                 panic("Cannot find the monster ustuck.");
 165         monfnd:
 166                 u.ustuck = mtmp;
 167         }
 168 #ifndef QUEST
 169         setsee();  /* only to recompute seelx etc. - these weren't saved */
 170 #endif QUEST
 171         docrt();
 172         restoring = FALSE;
 173         return(1);
 174 }
 175
 176 struct obj *
 177 restobjchn(fd)
 178 register fd;
 179 {
 180         register struct obj *otmp, *otmp2;
 181         register struct obj *first = 0;
 182         int xl;
 183 #ifdef lint
 184         /* suppress "used before set" warning from lint */
 185         otmp2 = 0;
 186 #endif lint
 187         while(1) {
 188                 mread(fd, (char *) &xl, sizeof(xl));
 189                 if(xl == -1) break;
 190                 otmp = newobj(xl);
 191                 if(!first) first = otmp;
 192                 else otmp2->nobj = otmp;
 193                 mread(fd, (char *) otmp, (unsigned) xl + sizeof(struct obj));
 194                 if(!otmp->o_id) otmp->o_id = flags.ident++;
 195                 otmp2 = otmp;
 196         }
 197         if(first && otmp2->nobj){
 198                 impossible("Restobjchn: error reading objchn.");
 199                 otmp2->nobj = 0;
 200         }
 201         return(first);
 202 }
 203
 204 struct monst *
 205 restmonchn(fd)
 206 register fd;
 207 {
 208         register struct monst *mtmp, *mtmp2;
 209         register struct monst *first = 0;
 210         int xl;
 211
 212         struct permonst *monbegin;
 213         long differ;
 214
 215         mread(fd, (char *)&monbegin, sizeof(monbegin));
 216         differ = (char *)(&mons[0]) - (char *)(monbegin);
 217
 218 #ifdef lint
 219         /* suppress "used before set" warning from lint */
 220         mtmp2 = 0;
 221 #endif lint
 222         while(1) {
 223                 mread(fd, (char *) &xl, sizeof(xl));
 224                 if(xl == -1) break;
 225                 mtmp = newmonst(xl);
 226                 if(!first) first = mtmp;
 227                 else mtmp2->nmon = mtmp;
 228                 mread(fd, (char *) mtmp, (unsigned) xl + sizeof(struct monst));
 229                 if(!mtmp->m_id)
 230                         mtmp->m_id = flags.ident++;
 231                 mtmp->data = (struct permonst *)
 232                         ((char *) mtmp->data + differ);
 233                 if(mtmp->minvent)
 234                         mtmp->minvent = restobjchn(fd);
 235                 mtmp2 = mtmp;
 236         }
 237         if(first && mtmp2->nmon){
 238                 impossible("Restmonchn: error reading monchn.");
 239                 mtmp2->nmon = 0;
 240         }
 241         return(first);
 242 }