John Reiser <jrei...@bitwagon.com> wrote: > On 3/16/21, David Howells wrote: > > John Reiser <jrei...@bitwagon.com> wrote: > > > >> See the manual page "man 2 getdents". > > Um, which bit? I don't see anything obvious to that end. > > On that manual page: > ===== > The system call getdents() reads several linux_dirent structures from the > directory > referred to by the open file descriptor fd into the buffer pointed to by dirp. > [snip]] > On success, the number of bytes read is returned. > =====
It doesn't say anything about the size of the directory there. "Number of bytes read is returned" should be taken as how much of the user buffer was filled - information you need to know to be able to parse it. Further, there's getdents() and there's getdents64() and their structs are of different sizes. By your logic st_size would have to be the number of linux_dirent structs for use with the former and the number of linux_dirent64 structs for use with the latter... And then there's readdir() as well with it's old_linux_dirent struct. So, no, it cannot work like that. David _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
