hack/hack.save.c

   1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
   2 /* hack.save.c - version 1.0.3 */
   3
   4 #include "hack.h"
   5 extern char genocided[60];      /* defined in Decl.c */
   6 extern char fut_geno[60];       /* idem */
   7 #include <signal.h>
   8
   9 extern char SAVEF[], nul[];
  10 extern char pl_character[PL_CSIZ];
  11 extern long lseek();
  12 extern struct obj *restobjchn();
  13 extern struct monst *restmonchn();
  14
  15 dosave(){
  16         if(dosave0(0)) {
  17                 settty("Be seeing you ...\n");
  18                 exit(0);
  19         }
  20 #ifdef lint
  21         return(0);
  22 #endif lint
  23 }
  24
  25 #ifndef NOSAVEONHANGUP
  26 hangup(){
  27         (void) dosave0(1);
  28         exit(1);
  29 }
  30 #endif NOSAVEONHANGUP
  31
  32 /* returns 1 if save successful */
  33 dosave0(hu) int hu; {
  34         register fd, ofd;
  35         int tmp;                /* not register ! */
  36
  37         (void) signal(SIGHUP, SIG_IGN);
  38         (void) signal(SIGINT, SIG_IGN);
  39         if((fd = creat(SAVEF, FMASK)) < 0) {
  40                 if(!hu) pline("Cannot open save file. (Continue or Quit)");
  41                 (void) unlink(SAVEF);           /* ab@unido */
  42                 return(0);
  43         }
  44         if(flags.moonphase == FULL_MOON)        /* ut-sally!fletcher */
  45                 u.uluck--;                      /* and unido!ab */
  46         savelev(fd,dlevel);
  47         saveobjchn(fd, invent);
  48         saveobjchn(fd, fcobj);
  49         savemonchn(fd, fallen_down);
  50         tmp = getuid();
  51         bwrite(fd, (char *) &tmp, sizeof tmp);
  52         bwrite(fd, (char *) &flags, sizeof(struct flag));
  53         bwrite(fd, (char *) &dlevel, sizeof dlevel);
  54         bwrite(fd, (char *) &maxdlevel, sizeof maxdlevel);
  55         bwrite(fd, (char *) &moves, sizeof moves);
  56         bwrite(fd, (char *) &u, sizeof(struct you));
  57         if(u.ustuck)
  58                 bwrite(fd, (char *) &(u.ustuck->m_id), sizeof u.ustuck->m_id);
  59         bwrite(fd, (char *) pl_character, sizeof pl_character);
  60         bwrite(fd, (char *) genocided, sizeof genocided);
  61         bwrite(fd, (char *) fut_geno, sizeof fut_geno);
  62         savenames(fd);
  63         for(tmp = 1; tmp <= maxdlevel; tmp++) {
  64                 extern int hackpid;
  65                 extern boolean level_exists[];
  66
  67                 if(tmp == dlevel || !level_exists[tmp]) continue;
  68                 glo(tmp);
  69                 if((ofd = open(lock, 0)) < 0) {
  70                     if(!hu) pline("Error while saving: cannot read %s.", lock);
  71                     (void) close(fd);
  72                     (void) unlink(SAVEF);
  73                     if(!hu) done("tricked");
  74                     return(0);
  75                 }
  76                 getlev(ofd, hackpid, tmp);
  77                 (void) close(ofd);
  78                 bwrite(fd, (char *) &tmp, sizeof tmp);  /* level number */
  79                 savelev(fd,tmp);                        /* actual level */
  80                 (void) unlink(lock);
  81         }
  82         (void) close(fd);
  83         glo(dlevel);
  84         (void) unlink(lock);    /* get rid of current level --jgm */
  85         glo(0);
  86         (void) unlink(lock);
  87         return(1);
  88 }
  89
  90 dorecover(fd)
  91 register fd;
  92 {
  93         register nfd;
  94         int tmp;                /* not a register ! */
  95         unsigned mid;           /* idem */
  96         struct obj *otmp;
  97         extern boolean restoring;
  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 != getuid()) {           /* strange ... */
 109                 (void) close(fd);
 110                 (void) 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         while(1) {
 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                 (void) close(nfd);
 135         }
 136         (void) lseek(fd, 0L, 0);
 137         getlev(fd, 0, 0);
 138         (void) close(fd);
 139         (void) unlink(SAVEF);
 140         if(Punished) {
 141                 for(otmp = fobj; otmp; otmp = otmp->nobj)
 142                         if(otmp->olet == CHAIN_SYM) goto chainfnd;
 143                 panic("Cannot find the iron chain?");
 144         chainfnd:
 145                 uchain = otmp;
 146                 if(!uball){
 147                         for(otmp = fobj; otmp; otmp = otmp->nobj)
 148                                 if(otmp->olet == BALL_SYM && otmp->spe)
 149                                         goto ballfnd;
 150                         panic("Cannot find the iron ball?");
 151                 ballfnd:
 152                         uball = otmp;
 153                 }
 154         }
 155         if(u.ustuck) {
 156                 register struct monst *mtmp;
 157
 158                 for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
 159                         if(mtmp->m_id == mid) goto monfnd;
 160                 panic("Cannot find the monster ustuck.");
 161         monfnd:
 162                 u.ustuck = mtmp;
 163         }
 164 #ifndef QUEST
 165         setsee();  /* only to recompute seelx etc. - these weren't saved */
 166 #endif QUEST
 167         docrt();
 168         restoring = FALSE;
 169         return(1);
 170 }
 171
 172 struct obj *
 173 restobjchn(fd)
 174 register fd;
 175 {
 176         register struct obj *otmp, *otmp2;
 177         register struct obj *first = 0;
 178         int xl;
 179 #ifdef lint
 180         /* suppress "used before set" warning from lint */
 181         otmp2 = 0;
 182 #endif lint
 183         while(1) {
 184                 mread(fd, (char *) &xl, sizeof(xl));
 185                 if(xl == -1) break;
 186                 otmp = newobj(xl);
 187                 if(!first) first = otmp;
 188                 else otmp2->nobj = otmp;
 189                 mread(fd, (char *) otmp, (unsigned) xl + sizeof(struct obj));
 190                 if(!otmp->o_id) otmp->o_id = flags.ident++;
 191                 otmp2 = otmp;
 192         }
 193         if(first && otmp2->nobj){
 194                 impossible("Restobjchn: error reading objchn.");
 195                 otmp2->nobj = 0;
 196         }
 197         return(first);
 198 }
 199
 200 struct monst *
 201 restmonchn(fd)
 202 register fd;
 203 {
 204         register struct monst *mtmp, *mtmp2;
 205         register struct monst *first = 0;
 206         int xl;
 207
 208         struct permonst *monbegin;
 209         long differ;
 210
 211         mread(fd, (char *)&monbegin, sizeof(monbegin));
 212         differ = (char *)(&mons[0]) - (char *)(monbegin);
 213
 214 #ifdef lint
 215         /* suppress "used before set" warning from lint */
 216         mtmp2 = 0;
 217 #endif lint
 218         while(1) {
 219                 mread(fd, (char *) &xl, sizeof(xl));
 220                 if(xl == -1) break;
 221                 mtmp = newmonst(xl);
 222                 if(!first) first = mtmp;
 223                 else mtmp2->nmon = mtmp;
 224                 mread(fd, (char *) mtmp, (unsigned) xl + sizeof(struct monst));
 225                 if(!mtmp->m_id)
 226                         mtmp->m_id = flags.ident++;
 227                 mtmp->data = (struct permonst *)
 228                         ((char *) mtmp->data + differ);
 229                 if(mtmp->minvent)
 230                         mtmp->minvent = restobjchn(fd);
 231                 mtmp2 = mtmp;
 232         }
 233         if(first && mtmp2->nmon){
 234                 impossible("Restmonchn: error reading monchn.");
 235                 mtmp2->nmon = 0;
 236         }
 237         return(first);
 238 }