Function petname_optfn

src/options.c:847–874

common to optfn_catname(), optfn_dogname(), optfn_horsename() */

/* common to optfn_catname(), optfn_dogname(), optfn_horsename() */
staticfn int
petname_optfn(
    int optidx, int req,
    boolean negated,
    char *opts, char *op)
{
    char failsafe[PL_PSIZ + 1];
    char *petname = (optidx == opt_catname) ? gc.catname
                    : (optidx == opt_dogname) ? gd.dogname
                      : (optidx == opt_horsename) ? gh.horsename
                        : failsafe;

    if (req == do_init) {
        ;
    } else if (req == do_set) {
        if (op == empty_optstr && !negated)
            return optn_err;
        if (negated || !strcmp(op, "none") || !strcmp(op, none))
            op = empty_optstr;
        nmcpy(petname, op, PL_PSIZ);
        sanitize_name(petname);
    } else if (req == get_val || req == get_cnf_val) {
        failsafe[0] = '\0';
        Sprintf(opts, "%s", *petname ? petname
                            : (req == get_cnf_val) ? "none" : none);
    }
    return optn_ok;
}

/*
 **********************************