Function login_getcapnum

tools/libutil/login_cap.c:625–665

 */

rlim_t
login_getcapnum(login_cap_t *lc, const char *cap, rlim_t def, rlim_t error)
{
    char    *ep, *res;
    int	    r;
    rlim_t  val;

    if (lc == NULL || lc->lc_cap == NULL)
	return def;

    /*
     * For BSDI compatibility, try for the tag=<val> first
     */
    if ((r = cgetstr(lc->lc_cap, cap, &res)) == -1) {
	long	lval;
	/* string capability not present, so try for tag#<val> as numeric */
	if ((r = cgetnum(lc->lc_cap, cap, &lval)) == -1)
	    return def; /* Not there, so return default */
	else if (r >= 0)
	    return (rlim_t)lval;
    }

    if (r < 0) {
	errno = ERANGE;
	return error;
    }

    if (isinfinite(res))
	return RLIM_INFINITY;

    errno = 0;
    val = strtoq(res, &ep, 0);
    if (ep == NULL || ep == res || errno != 0) {
	syslog(LOG_WARNING, "login_getcapnum: class '%s' bad value %s=%s",
	       lc->lc_class, cap, res);
	errno = ERANGE;
	return error;
    }

    return val;
}