NetBSD/games/hack/hack.save.c

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/* $NetBSD: hack.save.c,v 1.7 2001/03/25 20:44:02 jsm Exp $ */
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/*
* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985.
*/
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#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.save.c,v 1.7 2001/03/25 20:44:02 jsm Exp $");
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#endif /* not lint */
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#include <signal.h>
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#include <stdlib.h>
#include <unistd.h>
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#include <fcntl.h>
#include "hack.h"
#include "extern.h"
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int
dosave()
{
if (dosave0(0)) {
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settty("Be seeing you ...\n");
exit(0);
}
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return (0);
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}
#ifndef NOSAVEONHANGUP
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void
hangup(n)
int n __attribute__((__unused__));
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{
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(void) dosave0(1);
exit(1);
}
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#endif /* NOSAVEONHANGUP */
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/* returns 1 if save successful */
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int
dosave0(hu)
int hu;
{
int fd, ofd;
int tmp; /* not ! */
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(void) signal(SIGHUP, SIG_IGN);
(void) signal(SIGINT, SIG_IGN);
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if ((fd = creat(SAVEF, FMASK)) < 0) {
if (!hu)
pline("Cannot open save file. (Continue or Quit)");
(void) unlink(SAVEF); /* ab@unido */
return (0);
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}
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if (flags.moonphase == FULL_MOON) /* ut-sally!fletcher */
u.uluck--; /* and unido!ab */
savelev(fd, dlevel);
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saveobjchn(fd, invent);
saveobjchn(fd, fcobj);
savemonchn(fd, fallen_down);
tmp = getuid();
bwrite(fd, (char *) &tmp, sizeof tmp);
bwrite(fd, (char *) &flags, sizeof(struct flag));
bwrite(fd, (char *) &dlevel, sizeof dlevel);
bwrite(fd, (char *) &maxdlevel, sizeof maxdlevel);
bwrite(fd, (char *) &moves, sizeof moves);
bwrite(fd, (char *) &u, sizeof(struct you));
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if (u.ustuck)
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bwrite(fd, (char *) &(u.ustuck->m_id), sizeof u.ustuck->m_id);
bwrite(fd, (char *) pl_character, sizeof pl_character);
bwrite(fd, (char *) genocided, sizeof genocided);
bwrite(fd, (char *) fut_geno, sizeof fut_geno);
savenames(fd);
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for (tmp = 1; tmp <= maxdlevel; tmp++) {
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if (tmp == dlevel || !level_exists[tmp])
continue;
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glo(tmp);
if ((ofd = open(lock, O_RDONLY)) < 0) {
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if (!hu)
pline("Error while saving: cannot read %s.", lock);
(void) close(fd);
(void) unlink(SAVEF);
if (!hu)
done("tricked");
return (0);
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}
getlev(ofd, hackpid, tmp);
(void) close(ofd);
bwrite(fd, (char *) &tmp, sizeof tmp); /* level number */
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savelev(fd, tmp); /* actual level */
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(void) unlink(lock);
}
(void) close(fd);
glo(dlevel);
(void) unlink(lock); /* get rid of current level --jgm */
glo(0);
(void) unlink(lock);
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return (1);
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}
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int
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dorecover(fd)
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int fd;
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{
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int nfd;
int tmp; /* not a ! */
unsigned mid; /* idem */
struct obj *otmp;
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restoring = TRUE;
getlev(fd, 0, 0);
invent = restobjchn(fd);
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for (otmp = invent; otmp; otmp = otmp->nobj)
if (otmp->owornmask)
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setworn(otmp, otmp->owornmask);
fcobj = restobjchn(fd);
fallen_down = restmonchn(fd);
mread(fd, (char *) &tmp, sizeof tmp);
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if (tmp != getuid()) { /* strange ... */
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(void) close(fd);
(void) unlink(SAVEF);
puts("Saved game was not yours.");
restoring = FALSE;
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return (0);
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}
mread(fd, (char *) &flags, sizeof(struct flag));
mread(fd, (char *) &dlevel, sizeof dlevel);
mread(fd, (char *) &maxdlevel, sizeof maxdlevel);
mread(fd, (char *) &moves, sizeof moves);
mread(fd, (char *) &u, sizeof(struct you));
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if (u.ustuck)
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mread(fd, (char *) &mid, sizeof mid);
mread(fd, (char *) pl_character, sizeof pl_character);
mread(fd, (char *) genocided, sizeof genocided);
mread(fd, (char *) fut_geno, sizeof fut_geno);
restnames(fd);
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while (1) {
if (read(fd, (char *) &tmp, sizeof tmp) != sizeof tmp)
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break;
getlev(fd, 0, tmp);
glo(tmp);
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if ((nfd = creat(lock, FMASK)) < 0)
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panic("Cannot open temp file %s!\n", lock);
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savelev(nfd, tmp);
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(void) close(nfd);
}
(void) lseek(fd, (off_t) 0, SEEK_SET);
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getlev(fd, 0, 0);
(void) close(fd);
(void) unlink(SAVEF);
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if (Punished) {
for (otmp = fobj; otmp; otmp = otmp->nobj)
if (otmp->olet == CHAIN_SYM)
goto chainfnd;
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panic("Cannot find the iron chain?");
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chainfnd:
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uchain = otmp;
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if (!uball) {
for (otmp = fobj; otmp; otmp = otmp->nobj)
if (otmp->olet == BALL_SYM && otmp->spe)
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goto ballfnd;
panic("Cannot find the iron ball?");
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ballfnd:
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uball = otmp;
}
}
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if (u.ustuck) {
struct monst *mtmp;
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for (mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if (mtmp->m_id == mid)
goto monfnd;
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panic("Cannot find the monster ustuck.");
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monfnd:
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u.ustuck = mtmp;
}
#ifndef QUEST
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setsee(); /* only to recompute seelx etc. - these
* weren't saved */
#endif /* QUEST */
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docrt();
restoring = FALSE;
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return (1);
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}
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struct obj *
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restobjchn(fd)
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int fd;
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{
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struct obj *otmp, *otmp2 = NULL;
struct obj *first = 0;
int xl;
while (1) {
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mread(fd, (char *) &xl, sizeof(xl));
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if (xl == -1)
break;
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otmp = newobj(xl);
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if (!first)
first = otmp;
else
otmp2->nobj = otmp;
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mread(fd, (char *) otmp, (unsigned) xl + sizeof(struct obj));
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if (!otmp->o_id)
otmp->o_id = flags.ident++;
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otmp2 = otmp;
}
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if (first && otmp2->nobj) {
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impossible("Restobjchn: error reading objchn.");
otmp2->nobj = 0;
}
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return (first);
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}
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struct monst *
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restmonchn(fd)
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int fd;
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{
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struct monst *mtmp, *mtmp2 = NULL;
struct monst *first = 0;
int xl;
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struct permonst *monbegin;
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long differ;
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mread(fd, (char *) &monbegin, sizeof(monbegin));
differ = (const char *) (&mons[0]) - (const char *) (monbegin);
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#ifdef lint
/* suppress "used before set" warning from lint */
mtmp2 = 0;
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#endif /* lint */
while (1) {
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mread(fd, (char *) &xl, sizeof(xl));
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if (xl == -1)
break;
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mtmp = newmonst(xl);
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if (!first)
first = mtmp;
else
mtmp2->nmon = mtmp;
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mread(fd, (char *) mtmp, (unsigned) xl + sizeof(struct monst));
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if (!mtmp->m_id)
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mtmp->m_id = flags.ident++;
mtmp->data = (const struct permonst *)
((const char *) mtmp->data + differ);
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if (mtmp->minvent)
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mtmp->minvent = restobjchn(fd);
mtmp2 = mtmp;
}
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if (first && mtmp2->nmon) {
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impossible("Restmonchn: error reading monchn.");
mtmp2->nmon = 0;
}
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return (first);
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}