Function open_savefile

src/files.c:1216–1255

open savefile for reading */

/* open savefile for reading */
NHFILE *
open_savefile(void)
{
    const char *fq_save;
    NHFILE *nhfp = (NHFILE *) 0;
    boolean do_historical = TRUE;

    fq_save = fqname(gs.SAVEF, SAVEPREFIX, 0);
    nhfp = new_nhfile();
    if (nhfp) {
        nhfp->ftype = NHF_SAVEFILE;
        nhfp->mode = READING;
        if (program_state.in_self_recover || do_historical) {
            do_historical = TRUE;       /* force it */
            nhUse(do_historical);
            nhfp->structlevel = TRUE;
            nhfp->fieldlevel = FALSE;
            nhfp->addinfo = FALSE;
            nhfp->style.deflt = FALSE;
            nhfp->style.binary = TRUE;
            nhfp->fnidx = historical;
            nhfp->fd = -1;
            nhfp->fpdef = (FILE *) 0;
#ifdef SAVEFILE_DEBUGGING
            nhfp->fplog = fopen("open-savefile.log", "w");
#endif
        }
#ifdef MACOS9
        nhfp->fd = macopen(fq_save, O_RDONLY | O_BINARY, SAVE_TYPE);
#else
        nhfp->fd = open(fq_save, O_RDONLY | O_BINARY, 0);
#endif
#if defined(MSDOS) || defined(WIN32)
        if (nhfp->fd >= 0)
            (void) setmode(nhfp->fd, O_BINARY);
#endif
    }
    nhfp = viable_nhfile(nhfp);
    return nhfp;
}

/* delete savefile */
int