An off-by-one error could trigger a buffer overflow in
some cases in the old code.
See https://bugzilla.kernel.org/show_bug.cgi?id=196483
Also some other cosmetic changes to the code (more comments,
better variable names).
Reported-by: Jason Noakes <jjnoakes@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
- fstatfs is now permitted.
- ioctl isn't, and is worth listing explicitly
- O_PATH allows an automount point to be opened with
triggering the mount.
All tested
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Recent patch to description of MNT_FORCE incorrectly
dropped the mention of possible data loss. Restore it.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
MNT_FORCE does not allow a busy filesystem to be unmounted. Only
MNT_DETACH allows that. MNT_FORCE only tries to abort pending
transactions, in the hope that might help umount not to block,
Also, other filesystems than NFS support MNT_FORCE.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This makes tzfile.5 a copy of the tzdb version, except that the
tzdb version's first line is replaced by man-pages boilerplate.
The new version documents version 3 format, among other things.
Also, it removes the "Summary of the timezone information file
format" section, which should no longer be needed due to
improvements in the the part of the man page.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Mike Fabian and Rafał Luzynski were recently named as glibc
localedata maintainers [1] and after that there's been active
development on this front, including discussion whether it would
be ok to use ASCII or some other encoding as values for actual
locate data.
Since I don't think it would make sense to try to have different
explanation for each glibc version on the locale(5) man page, I'm
proposing that we apply the below patch so that we refer to
existing locale definition files in general and not spell out the
exact format or any certain locale as a definitive guideline.
If the situation changes in the future or new a new convention
meant to last forever is created then perhaps Mike and Rafał can
provide an update then as needed.
1) https://sourceware.org/ml/libc-alpha/2017-07/msg00477.html
2) https://sourceware.org/ml/libc-alpha/2017-07/msg00807.html
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
[mtk: Confirmed by consulting C90 draft standard]
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Michael Kerrisk