games/hack/hack.save.c

   1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
   2 /* hack.save.c - version 1.0.3 */
   3 /* $FreeBSD: src/games/hack/hack.save.c,v 1.4 1999/11/16 10:26:37 marcel Exp $ */
   4 /* $DragonFly: src/games/hack/hack.save.c,v 1.4 2006/08/21 19:45:32 pavalos Exp $ */
   5
   6 #include "hack.h"
   7
   8 extern char SAVEF[], nul[];
   9
  10 static bool     dosave0(int);
  11
  12 int
  13 dosave(void)
  14 {
  15         if(dosave0(0)) {
  16                 settty("Be seeing you ...\n");
  17                 exit(0);
  18         }
  19         return(0);
  20 }
  21
  22 #ifndef NOSAVEONHANGUP
  23 void
  24 hangup(__unused int unused)
  25 {
  26         dosave0(1);
  27         exit(1);
  28 }
  29 #endif /* NOSAVEONHANGUP */
  30
  31 /* returns 1 if save successful */
  32 static bool
  33 dosave0(int hu)
  34 {
  35         int fd, ofd;
  36         int tmp;                /* not ! */
  37
  38         signal(SIGHUP, SIG_IGN);
  39         signal(SIGINT, SIG_IGN);
  40         if((fd = creat(SAVEF, FMASK)) < 0) {
  41                 if(!hu) pline("Cannot open save file. (Continue or Quit)");
  42                 unlink(SAVEF);          /* ab@unido */
  43                 return(0);
  44         }
  45         if(flags.moonphase == FULL_MOON)        /* ut-sally!fletcher */
  46                 u.uluck--;                      /* and unido!ab */
  47         savelev(fd,dlevel);
  48         saveobjchn(fd, invent);
  49         saveobjchn(fd, fcobj);
  50         savemonchn(fd, fallen_down);
  51         tmp = getuid();
  52         bwrite(fd, (char *) &tmp, sizeof tmp);
  53         bwrite(fd, (char *) &flags, sizeof(struct flag));
  54         bwrite(fd, (char *) &dlevel, sizeof dlevel);
  55         bwrite(fd, (char *) &maxdlevel, sizeof maxdlevel);
  56         bwrite(fd, (char *) &moves, sizeof moves);
  57         bwrite(fd, (char *) &u, sizeof(struct you));
  58         if(u.ustuck)
  59                 bwrite(fd, (char *) &(u.ustuck->m_id), sizeof u.ustuck->m_id);
  60         bwrite(fd, (char *) pl_character, sizeof pl_character);
  61         bwrite(fd, (char *) genocided, sizeof genocided);
  62         bwrite(fd, (char *) fut_geno, sizeof fut_geno);
  63         savenames(fd);
  64         for(tmp = 1; tmp <= maxdlevel; tmp++) {
  65                 if(tmp == dlevel || !level_exists[tmp]) continue;
  66                 glo(tmp);
  67                 if((ofd = open(lock, 0)) < 0) {
  68                     if(!hu) pline("Error while saving: cannot read %s.", lock);
  69                     close(fd);
  70                     unlink(SAVEF);
  71                     if(!hu) done("tricked");
  72                     return(0);
  73                 }
  74                 getlev(ofd, hackpid, tmp);
  75                 close(ofd);
  76                 bwrite(fd, (char *) &tmp, sizeof tmp);  /* level number */
  77                 savelev(fd,tmp);                        /* actual level */
  78                 unlink(lock);
  79         }
  80         close(fd);
  81         glo(dlevel);
  82         unlink(lock);   /* get rid of current level --jgm */
  83         glo(0);
  84         unlink(lock);
  85         return(1);
  86 }
  87
  88 bool
  89 dorecover(int fd)
  90 {
  91         int nfd;
  92         int tmp;                /* not a ! */
  93         unsigned mid;           /* idem */
  94         struct obj *otmp;
  95
  96         restoring = TRUE;
  97         getlev(fd, 0, 0);
  98         invent = restobjchn(fd);
  99         for(otmp = invent; otmp; otmp = otmp->nobj)
 100                 if(otmp->owornmask)
 101                         setworn(otmp, otmp->owornmask);
 102         fcobj = restobjchn(fd);
 103         fallen_down = restmonchn(fd);
 104         mread(fd, (char *) &tmp, sizeof tmp);
 105         if(tmp != (int)getuid()) {      /* strange ... */
 106                 close(fd);
 107                 unlink(SAVEF);
 108                 puts("Saved game was not yours.");
 109                 restoring = FALSE;
 110                 return(0);
 111         }
 112         mread(fd, (char *) &flags, sizeof(struct flag));
 113         mread(fd, (char *) &dlevel, sizeof dlevel);
 114         mread(fd, (char *) &maxdlevel, sizeof maxdlevel);
 115         mread(fd, (char *) &moves, sizeof moves);
 116         mread(fd, (char *) &u, sizeof(struct you));
 117         if(u.ustuck)
 118                 mread(fd, (char *) &mid, sizeof mid);
 119         mread(fd, (char *) pl_character, sizeof pl_character);
 120         mread(fd, (char *) genocided, sizeof genocided);
 121         mread(fd, (char *) fut_geno, sizeof fut_geno);
 122         restnames(fd);
 123         while(1) {
 124                 if(read(fd, (char *) &tmp, sizeof tmp) != sizeof tmp)
 125                         break;
 126                 getlev(fd, 0, tmp);
 127                 glo(tmp);
 128                 if((nfd = creat(lock, FMASK)) < 0)
 129                         panic("Cannot open temp file %s!\n", lock);
 130                 savelev(nfd,tmp);
 131                 close(nfd);
 132         }
 133         lseek(fd, (off_t)0, 0);
 134         getlev(fd, 0, 0);
 135         close(fd);
 136         unlink(SAVEF);
 137         if(Punished) {
 138                 for(otmp = fobj; otmp; otmp = otmp->nobj)
 139                         if(otmp->olet == CHAIN_SYM) goto chainfnd;
 140                 panic("Cannot find the iron chain?");
 141         chainfnd:
 142                 uchain = otmp;
 143                 if(!uball){
 144                         for(otmp = fobj; otmp; otmp = otmp->nobj)
 145                                 if(otmp->olet == BALL_SYM && otmp->spe)
 146                                         goto ballfnd;
 147                         panic("Cannot find the iron ball?");
 148                 ballfnd:
 149                         uball = otmp;
 150                 }
 151         }
 152         if(u.ustuck) {
 153                 struct monst *mtmp;
 154
 155                 for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
 156                         if(mtmp->m_id == mid) goto monfnd;
 157                 panic("Cannot find the monster ustuck.");
 158         monfnd:
 159                 u.ustuck = mtmp;
 160         }
 161 #ifndef QUEST
 162         setsee();  /* only to recompute seelx etc. - these weren't saved */
 163 #endif /* QUEST */
 164         docrt();
 165         restoring = FALSE;
 166         return(1);
 167 }
 168
 169 struct obj *
 170 restobjchn(int fd)
 171 {
 172         struct obj *otmp, *otmp2;
 173         struct obj *first = 0;
 174         int xl;
 175         /* suppress "used before set" warning from lint */
 176         otmp2 = 0;
 177         while(1) {
 178                 mread(fd, (char *) &xl, sizeof(xl));
 179                 if(xl == -1) break;
 180                 otmp = newobj(xl);
 181                 if(!first) first = otmp;
 182                 else otmp2->nobj = otmp;
 183                 mread(fd, (char *) otmp, (unsigned) xl + sizeof(struct obj));
 184                 if(!otmp->o_id) otmp->o_id = flags.ident++;
 185                 otmp2 = otmp;
 186         }
 187         if(first && otmp2->nobj){
 188                 impossible("Restobjchn: error reading objchn.");
 189                 otmp2->nobj = 0;
 190         }
 191         return(first);
 192 }
 193
 194 struct monst *
 195 restmonchn(int fd)
 196 {
 197         struct monst *mtmp, *mtmp2;
 198         struct monst *first = 0;
 199         int xl;
 200
 201         struct permonst *monbegin;
 202         long differ;
 203
 204         mread(fd, (char *)&monbegin, sizeof(monbegin));
 205         differ = (char *)(&mons[0]) - (char *)(monbegin);
 206
 207         /* suppress "used before set" warning from lint */
 208         mtmp2 = 0;
 209         while(1) {
 210                 mread(fd, (char *) &xl, sizeof(xl));
 211                 if(xl == -1) break;
 212                 mtmp = newmonst(xl);
 213                 if(!first) first = mtmp;
 214                 else mtmp2->nmon = mtmp;
 215                 mread(fd, (char *) mtmp, (unsigned) xl + sizeof(struct monst));
 216                 if(!mtmp->m_id)
 217                         mtmp->m_id = flags.ident++;
 218                 mtmp->data = (struct permonst *)
 219                         ((char *) mtmp->data + differ);
 220                 if(mtmp->minvent)
 221                         mtmp->minvent = restobjchn(fd);
 222                 mtmp2 = mtmp;
 223         }
 224         if(first && mtmp2->nmon){
 225                 impossible("Restmonchn: error reading monchn.");
 226                 mtmp2->nmon = 0;
 227         }
 228         return(first);
 229 }