Function open_levelfile

src/files.c:672–716

}

NHFILE *
open_levelfile(int lev, char errbuf[])
{
    const char *fq_lock;
    NHFILE *nhfp = (NHFILE *) 0;

    if (errbuf)
        *errbuf = '\0';
    set_levelfile_name(gl.lock, lev);
    fq_lock = fqname(gl.lock, LEVELPREFIX, 0);
    nhfp = new_nhfile();
    if (nhfp) {
        nhfp->mode = READING;
        nhfp->structlevel = TRUE; /* do set this TRUE for levelfiles */
        nhfp->fieldlevel = FALSE; /* do not set this TRUE for levelfiles */
        nhfp->addinfo = FALSE;
        nhfp->style.deflt = FALSE;
        nhfp->style.binary = TRUE;
        nhfp->ftype = NHF_LEVELFILE;
        nhfp->fnidx = historical;
        nhfp->fd = -1;
        nhfp->fpdef = (FILE *) 0;
    }
    if (nhfp && nhfp->structlevel) {
#ifdef MACOS9
        nhfp->fd = macopen(fq_lock, O_RDONLY | O_BINARY, LEVL_TYPE);
#else
        nhfp->fd = open(fq_lock, O_RDONLY | O_BINARY, 0);
#endif

        /* for failure, return an explanation that our caller can use;
           settle for `lock' instead of `fq_lock' because the latter
           might end up being too big for nethack's BUFSZ */
        if (nhfp->fd < 0 && errbuf)
            Sprintf(errbuf,
                    "Cannot open file \"%s\" for level %d (errno %d).",
                    gl.lock, lev, errno);
#if defined(MSDOS) || defined(WIN32)
        if (nhfp->fd >= 0)
            (void) setmode(nhfp->fd, O_BINARY);
#endif
    }
    nhfp = viable_nhfile(nhfp);
    return nhfp;
}

void
delete_levelfile(int lev)