sudo-baron-samedit-6.cpp

//sudo_1.8.23-9.el7/plugins/sudoers/defaults.c
bool
update_defaults(int what, bool quiet)
{
    struct defaults *d; 
    ...

    /*
     * Then set the rest of the defaults.
     */
    TAILQ_FOREACH(d, &defaults, entries) {
        ...

        /* Copy the value to sudo_defs_table and run callback (if any) */
        if (!set_default(d->var, d->val, d->op, d->file, d->lineno, quiet))
            ret = false;
    }
    debug_return_bool(ret);
}