Previously, we were using touch(), which usually works fine, because the
path should always refer to an existing directory, in which case it just
updates the timestamp. However, if the dir does not exist yet (which
shouldn't happen), it would be created as regular file, which is just
wrong.
Hence, let's instead create the dir as dir if it is missing, and then
update its timestamp.
This is a wrapper around openat(). It works mostly the same, except for
one thing: it race-freely reports whether we just created the indicated
file in case O_CREAT is passed without O_EXCL.
The goal is to move everything that requires selinux or smack
away from src/basic/. This means that src/basic/label.[ch] must move,
which implies btrfs-util.[ch], copy.[ch], and a bunch of other files
which form a cluster of internal use.
This is just moving text around, so there should be no functional difference.
test-blockdev-util is new, because path_is_encrypted() is moved to
blockdev-util.c, and so far we didn't have any tests for code there.
Add the '=' action modifier that instructs tmpfiles.d to check the file
type of a path and remove objects that do not match before trying to
open or create the path.
BUG=chromium:1186405
TEST=./test/test-systemd-tmpfiles.py "$(which systemd-tmpfiles)"
Change-Id: If807dc0db427393e9e0047aba640d0d114897c26
On some conditions (particularly when mobile CPUs are going to sleep),
the posix_fallocate(), which is called when a new journal file is allocated,
can return -1 (EINTR). This is counted as a fatal error. So the journald
closes both old and journals, and simply throwing away further incoming
events, because of no log files open.
Introduce posix_fallocate_loop() that restarts the function in the case
of EINTR. Also let's make code base more uniform by returning negative
values on error.
Fix assert in test-sigbus.c that incorrectly counted positive values as
success. After changing the function return values, that will actually work.
Fixes: #19041
Signed-off-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Let#s make these helpers useful even without _cleanup_ logic, to destory
arbitary fields: make them OK wiht a NULL pointer as input, and always
return one as output.
Functions defined by us are supposed to return negative errno-style
errors on errors. laccess() is for access() what lstat() is for stat(),
but defined by us as a macro. This led to some confusion regarding error
handling.
Let's return a negative errno code just in case. This means callers can
it use either way: like access(), i.e. checking for a negative return
value + looking at errno, or like our own code, i.e. using the negative
errno code it returns.
if the source and destination file match in contents and basic file
attributes, don#t rename, but just remove source.
This is a simple way to suppress inotify events + mtime changes when
atomically updating files.
Lennart Poettering
Mike Yuan
Adrian Vovk
Yu Watanabe
Daan De Meyer
Christian Göttsche
Zbigniew Jędrzejewski-Szmek
Allen Webb
Igor Zhbanov
Frantisek Sumsal