I did this by implementing a function called sendfile_all() similar to
read_all()/write_all().
The manpage for sendfile doesn't mention EINTR, but I decided to check
it anyway, just in case.
Suggested-by: Karel Zak <kzak@redhat.com>
Reviewed-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Egor Chelak <egor.chelak@gmail.com>
Do note that according to man sendfile, "Other UNIX systems implement
sendfile() with different semantics and prototypes."
If this is something we care about, a better check is needed.
Suggested-by: Karel Zak <kzak@redhat.com>
Reviewed-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Egor Chelak <egor.chelak@gmail.com>
Also, a bug in pw_tmpfile was fixed: copyfile used tmp_file to report
errors, but pw_tmpfile only assigned that variable _after_ calling
copyfile.
Suggested-by: Sami Kerola <kerolasa@iki.fi>
Reviewed-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Egor Chelak <egor.chelak@gmail.com>
Since `off` and `nr` approach each other, the for-loop ends prematurely
when at least half of the buffer was written. I think under certain
conditions this could cause the copy to be incomplete.
Signed-off-by: Egor Chelak <egor.chelak@gmail.com>
* 'ul-refactor' of https://github.com/kerolasa/util-linux:
ul: flip comparisons to lesser to greater order
ul: use size_t to measure memory allocation size
ul: improve function and variable names
ul: rename enumerated mode symbols
ul: remove function like putwp preprocessor define
ul: free most allocations ncurses did during setupterm()
ul: replace global runtime variables with a control structure
ul: add a term capabilities tracking structure
ul: remove function prototypes
ul: tidy up coding style
ul: add basic tests
It seems our putp() based output is not portable as some ncurses
implementations strictly follow POSIX where putp() accepts only
terminfo capability strings and nothing else.
We already use standard stdio.h functions to output terminfo strings
(e.g. for colors). It seems we can do the same for cal(1) to
highlight the current day.
Note that mix putp() and fputs() is bad idea due to different
buffering ways in some cases (see cal.c git log for more details).
This patch also reduces complexity of the code as we can directly
output to stdout without snprintf to string.
Addresses: https://github.com/karelzak/util-linux/pull/1167
Signed-off-by: Karel Zak <kzak@redhat.com>
The size_t is the type libc memory allocation functions use. The size_t
also provides allocation range that is enough not to a simple tool like this
to perform paranoia size checks. Just let the realloc(3) fail if there is
not enough memory available to handle the requested line size. That is a
lot more straightforward.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
First two are are ISO/IEC 2022 graphic character sets G0 (normal) and G1
(alternative), that one has to Switch In (SI) and Switch Out (SO). The rest
are about how ul(1) is interacting with various text emphasis.
Reference: https://tldp.org/HOWTO/Keyboard-and-Console-HOWTO-6.html
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
The #ifdef HAVE_WIDECHAR can be removed, because the command already is
using wide character functions elsewhere without fallbacks.
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
There's a couple of places which use varients on "0x%u" in format strings;
that's almost always wrong - you either want 0x%x or just %u. In libmount's
case it's flags, so I'm assuming the intention really is hex. In the ja.po
case it's %u in the original msgid.
Signed-off-by: Dr. David Alan Gilbert <dave@treblig.org>
Up on successful fdopendir(3) file descriptior that will be closed, that
happens in recursiveRemove() switch_root(8) function.
CID: 360697
Reference: https://pubs.opengroup.org/onlinepubs/9699919799/functions/fdopendir.html
Co-Author: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
According to coverirty a printf format string contains an unrecognized
format specifier (CWE-628). Lets avoid glibc extension "%m" that is same
as "%s", strerror(errno).
CID: 360699
CID: 360718
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
If a call to chroot is not followed by a call to chdir("/") the chroot jail
confinement can be violated. See also CWE-243.
CID: 360718
CID: 360800
Reference: http://cwe.mitre.org/data/definitions/243.html
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Field ut.ut_pid is uninitialized when calling getutxline(). The safest
option is to ensure all struct data is initialized in the function.
CID: 360793
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Variable cap was 32 bits and shifting it by 64 bits resulted to the shift
going over a variable boundary.
CID: 360799
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Karel Zak <kzak@redhat.com>
The col(1) is using unusual -H as --help short option. The -h is used for
--tabs (horizontal tab?) in this implementation.
Fixes: 62dee0176a
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
In 9995da0 we added support to fstrim to be able to fall back to
`/proc/self/mountinfo` if `/etc/fstab` didn't exist, but we forgot
to remove the `/etc/fstab` condition from the timer. Let's remove
that condition from the timer so we can go back to periodically
running `fstrim.service`.
The old images of the atari label are truncated and in-table stored
sizes do not match with real images sizes -- libblkid checks it now.
I have no idea how to generate ICD format, let's ignore it in tests
for now.
Signed-off-by: Karel Zak <kzak@redhat.com>
issue report:
if i run the heavy duty test from #16859 a couple of times I can get
the loopback layer in the kernel into a state where there's a loopback
block device allocated, that you can open, but where both LOOP_CLR_FD
and _SET_FD fail with EBUSY. and /dev/loop-control still returns it as
the next free one... weird state util-linux losetup when called to
allocate a new device then freezes
This commit:
* restrict number of attempts to 16
* use 200000ms sleep between attempts
* add note about non-atomic loop device setup to the man page
Reported-by: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Karel Zak <kzak@redhat.com>
Egor Chelak
Karel Zak
Sami Kerola
Dr. David Alan Gilbert
Eric Simpson
Dusty Mabe