Although this slightly more verbose it makes it much easier to reason
about. The code that produces the tests heavily benefits from this.
Test lists are also now sorted by test name.
Despite popular belief, the default file extracted by GNU tar is not stdin. It
is the value of the TAPE environment variable, falling back on a compile-time
constant. On my system, the default value is /dev/full, which causes tar to
just spin forever due to --ignore-zeros. Always specifying this flag is the
safe thing to do.
~$ tar --show-defaults
--format=gnu -f/dev/full -b20 --quoting-style=escape
--rmt-command=/usr/sbin/grmt
See also: ``(tar)defaults'', available via Info viewers, and in HTML form at:
https://www.gnu.org/s/tar/manual/html_node/defaults.html
CURLOPT_PROTOCOLS [0] was deprecated in libcurl 7.85.0 with
CURLOPT_PROTOCOLS_STR [1] as a replacement, causing build warnings/errors:
../build/src/import/curl-util.c: In function ‘curl_glue_make’:
../build/src/import/curl-util.c:255:9: error: ‘CURLOPT_PROTOCOLS’ is deprecated: since 7.85.0. Use CURLOPT_PROTOCOLS_STR [-Werror=deprecated-declarations]
255 | if (curl_easy_setopt(c, CURLOPT_PROTOCOLS, CURLPROTO_HTTP|CURLPROTO_HTTPS|CURLPROTO_FILE) != CURLE_OK)
| ^~
In file included from ../build/src/import/curl-util.h:4,
from ../build/src/import/curl-util.c:6:
/usr/include/curl/curl.h:1749:3: note: declared here
1749 | CURLOPTDEPRECATED(CURLOPT_PROTOCOLS, CURLOPTTYPE_LONG, 181,
| ^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Since there's no grace period between the two symbols, let's resort
to a light if-def-ery to resolve this.
[0] https://curl.se/libcurl/c/CURLOPT_PROTOCOLS.html
[1] https://curl.se/libcurl/c/CURLOPT_PROTOCOLS_STR.html
CURLINFO_PROTOCOL has been deprecated in curl 7.85.0 causing compilation
warnings/errors:
../build/src/import/pull-job.c: In function ‘pull_job_curl_on_finished’:
../build/src/import/pull-job.c:142:9: error: ‘CURLINFO_PROTOCOL’ is deprecated: since 7.85.0. Use CURLINFO_SCHEME [-Werror=deprecated-declarations]
142 | code = curl_easy_getinfo(curl, CURLINFO_PROTOCOL, &protocol);
| ^~~~
In file included from ../build/src/import/curl-util.h:4,
from ../build/src/import/pull-job.h:6,
from ../build/src/import/pull-common.h:7,
from ../build/src/import/pull-job.c:16:
/usr/include/curl/curl.h:2896:3: note: declared here
2896 | CURLINFO_PROTOCOL CURL_DEPRECATED(7.85.0, "Use CURLINFO_SCHEME")
| ^~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Since both CURLINFO_SCHEME and CURLINFO_PROTOCOL were introduced in
the same curl version (7.52.0 [0][1]) we don't have to worry about
backwards compatibility.
[0] https://curl.se/libcurl/c/CURLINFO_SCHEME.html
[1] https://curl.se/libcurl/c/CURLINFO_PROTOCOL.html
-1 was used everywhere, but -EBADF or -EBADFD started being used in various
places. Let's make things consistent in the new style.
Note that there are two candidates:
EBADF 9 Bad file descriptor
EBADFD 77 File descriptor in bad state
Since we're initializating the fd, we're just assigning a value that means
"no fd yet", so it's just a bad file descriptor, and the first errno fits
better. If instead we had a valid file descriptor that became invalid because
of some operation or state change, the other errno would fit better.
In some places, initialization is dropped if unnecessary.
Btrfs quotas are actually being enabled in systemd-importd via
setup_machine_directory(), not in systemd-{import,pull} where those
environment variables are checked. Therefore, also check them in
systemd-importd and avoid enabling quotas if requested by the user.
Fixes: #18421Fixes: #15903Fixes: #24387
The compiler should recognize that these are constant expressions, but
let's better make this explicit, so that the linker can safely share the
initializations all over the place.
The name "def.h" originates from before the rule of "no needless abbreviations"
was established. Let's rename the file to clarify that it contains a collection
of various semi-related constants.
We have free_and_replace() and friends, they are all named with lower
letters, even they are macros, not functions.
For consistency, let's rename CLOSE_AND_REPLACE() with lower letters.
This also mekes the macro used more places.
Let's raise our supported baseline a bit: CLOCK_BOOTTIME started to work
with timerfd in kernel 3.15 (i.e. back in 2014), let's require support
for it now.
This will raise our baseline only modestly from 3.13 → 3.15.
The meson default for static_library() are:
build_by_default=true, install=false. We never interact with the
static libraries, and we only care about them as a stepping-stone towards
the installable executables or libraries. Thus let's only build them if
they are a dependency of something else we are building.
While at it, let's drop install:false, since this appears to be the default.
This change would have fixed the issue with lib_import_common failing
to build too: we wouldn't attempt to build it.
In practice this changes very little, because we generally only declare static
libraries where there's something in the default target that will make use of
them. But it seems to be a better pattern to set build_by_default to false.
Use a 'convenience library' to do the compilation once and then link the
objects into all the files that need it. Those files are small, so this probably
doesn't matter too much for speed, but has the advantage that we don't get the
same error four times if something goes wrong.
The library is conditionalized in the same way importd itself, because we
cannot build it without the deps.
The variable is not useful outside of the loop (it'll always be null
after the loop is finished), so we can declare it inline in the loop.
This saves one variable declaration and reduces the chances that somebody
tries to use the variable outside of the loop.
For consistency, 'de' is used everywhere for the var name.
This is heavily based on Kevin Kuehler's work, but the logic is also
significantly changed: instead of a straighforward port to openssl, both
versions of the code are kept, and at compile time we pick one or the other.
The code is purposefully kept "dumb" — the idea is that the libgcrypt codepaths
are only temporary and will be removed after everybody upgrades to openssl 3.
Thus, a separate abstraction layer is not introduced. Instead, very simple
ifdefs are used to select one or the other. If we added an abstraction layer,
we'd have to remove it again afterwards, and it don't think it makes sense to
do that for a temporary solution.
Co-authored-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
# Conflicts:
# meson.build
Previously the mkdir_label() family of calls was implemented in
src/shared/mkdir-label.c but its functions partly declared ins
src/shared/label.h and partly in src/basic/mkdir.h (!!). That's weird
(and wrong).
Let's clean this up, and add a proper mkdir-label.h matching the .c
file.
rearrange_stdio() invalidates specified fds even on failure, which means
we should always invalidate the fds we pass in no matter what. Let's
make this explicit by using TAKE_FD() for that everywhere.
Note that in many places we such invalidation doesnt get us much
behaviour-wise, since we don't use the variables anymore later. But
TAKE_FD() in a way is also documentation, it encodes explicitly that the
fds are invalidated here, so I think it's a good thing to always make
this explicit here.
Only if we create a file we know for sure that it is empty and hence our
sparse file logic of skipping over NUL bytes can can work. If we hwoever
are called to write data to some existing file/block device, we must do
regular writes to override everything that might be in place before.
Hence, conditionalize sparse file writing on the write offset not being
configured (which is how we internally distinguish write to existing
file and write to new file)
