beside the privilege, it's more useful to modify the timestamp for IoT device by utime: https://pubs.opengroup.org/onlinepubs/009604599/functions/utime.html BTW, the permission is meaningless in FLAT mode with the unsafe language(e.g. C/C++).
On Mon, Apr 26, 2021 at 2:39 AM Gregory Nutt <spudan...@gmail.com> wrote: > > On 4/25/2021 12:31 PM, Alan Carvalho de Assis wrote: > > Hehehe, you are not the first one to notice it, in fact I commented > > that this kind of code exist but is not implemented: > > > > https://issues.apache.org/jira/browse/NUTTX-8 > > To be a POSIX, Unix-like system, NuttX should support privileges. > Adding privileges to the NSH login would be pretty easy (I actually > started that one time in the past). > > There has been no motivation to implement this feature, mostly because > the only file system with privilege information is ROMFS. But privileges > are more than just file privileges: I could be useful to have > super-user capabilities in NSH for many things, not just file access. > > >
