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