MS_LIB_CTRL_WRPROTECT
ms_lib_ctrl_set(info, MS_LIB_CTRL_WRPROTECT);
ms_lib_ctrl_set(info, MS_LIB_CTRL_WRPROTECT);
#define ms_lib_iswritable(pdx) ((ms_lib_ctrl_check((pdx), MS_LIB_CTRL_RDONLY) == 0) && (ms_lib_ctrl_check(pdx, MS_LIB_CTRL_WRPROTECT) == 0))