有些站点可能需要，比如限制晚上10点全站不能发文。基本思路是hack  checkreadonly。

boards.c


int checkreadonly(const char *board)
{                               /* 检查是否是只读版面 */
#ifdef XMU_BBS
        //Haishion, 全站只读，在这里切换
        #define XMU_READONLY_OUTOFOFFICE 1
        #ifdef XMU_READONLY_OUTOFOFFICE
        time_t now;
        struct tm* t;

        now = time(0);
        t = localtime(&now);

        if (!HAS_PERM(getCurrentUser(), PERM_OBOARDS) &&
                ((t->tm_hour < 8) || (t->tm_hour > 20))) {
                return true;
        }              
        #endif
#endif
    const struct boardheader *bh = getbcache(board);

    if (bh && (bh->flag & BOARD_READONLY))      /* Checking if DIR access mode is "555" */
        return true;
    else
        return false;
}
--
FROM 125.77.201.*