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Fixes#20189. We would only log at debug level and return failure, which looks
like a noop for the user.
('help' accepts multiple arguments and will show multiple concatenated man
pages in that case. Actually, it will also show multiple concatenated man pages
if the Documentation= setting lists multiple pages. I don't think it's very
terribly useful, but, meh, I don't think we can do much better. If a user
requests a help for a two services, one known and one unknown, there'll now be
a line in the output. It's not very user friendly, but not exactly wrong too.)
Since autodetection is unlikely to work reliably for cross builds
disable it unless explicitly enabled.
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Updated manpage for sd_bus_set_property and sd_bus_set_propertyv. In the old manpage, these functions included the parameter sd_bus_message **reply when the actual function had no such argument.
* Fixed typo
Before, the file claimed that some systemd units are created "from other
configuration". It should have read "from other configuration files".
Co-authored-by: Nozz <nozolo90@gmail.com>
We still sometimes try to grep an empty strace log because strace is not
yet properly initialized. Let's make the check a bit clever and wait
until strace is attached to PID 1 by checking the `TracerPid` field in
`/proc/1/status`.
cunescape() sets output on success, so initialization is not necessary. There
was no comment, but I think they may have been added because the compiler
wasn't convinced that the return value is non-negative on success. It could
have been confused by the int return type on escape*(), which was changed by
the one of preceeding commits to ssize_t, or by the length calculation, so add
an assert to help the compiler.
For some reason coverity thinks the output can be leaked here (CID #1458111).
I don't see how.
We can't say free_and_replace(exec_split[n++], quoted), because the the
argument is evaluated multiple times. But I think that this form is
still easier to read.
Sometimes the ldconfig.service might take a bit longer to finish,
causing spurious test timeouts:
```
[ 1025.858923] systemd[24]: ldconfig.service: Executing: /sbin/ldconfig -X
...
[ 1043.883620] systemd[1]: ldconfig.service: Main process exited, code=exited, status=0/SUCCESS (success)
...
Trying to halt container. Send SIGTERM again to trigger immediate
termination.
Container TEST-52-HONORFIRSTSHUTDOWN terminated by signal KILL.
E: Test timed out after 20s
```
UIDs don't work well over ssh, but locally or with containers they are OK.
In particular, user@.service uses UIDs as identifiers, and it's nice to be
able to copy&paste that UID for interaction with the user's managers.
The arguments are where the interesting part is:
src/libsystemd/sd-bus/bus-socket.c:965: sd-bus: starting bus with systemd-run...
↓
src/libsystemd/sd-bus/bus-socket.c:972: sd-bus: starting bus with systemd-run -M.host -PGq --wait -pUser=1000 -pPAMName=login systemd-stdio-bridge "-punix:path=\${XDG_RUNTIME_DIR}/bus"
asprintf(3) says that the pointer is "undefined" after a failed call.
In the current glibc implementation it is just NULL. In principle the
call could return a valid pointer with bad contents or something.
We have two styles of error handling: in a majority of cases we would
check the return value, but sometimes we used (void) and relied on the
pointer not being set. In practice both styles should be equivalent,
but gcc doesn't like the second one with -Wunused-result. (Though only
sometimes. E.g. on my F34 box I don't get the same warnings as in CI,
even though the compiler version is very similar and the compilation
options are the same…). It's also nice to be consistent in our code base.
So let's always use the first style of error checking.
We disabled it in f73fb7b742 in response to an
apparent gcc bug. It seems that depending on the combination of optimization
options, gcc still ignores (void). But this seems to work fine with clang, so
let's re-enable the warning conditionally.
When those two macros were used together in CONST_MAX(), gcc would complain
about a type mismatch. So either DECIMAL_STR_MAX() should be made size_t like
STRLEN(), or STRLEN() be made unsigned.
Since those macros are only usable on arguments of (small) fixed size, any type
should be fine (even char would work…). For buffer size specifications, both
size_t and unsigned are OK. But unsigned was used for DECIMAL_STR_MAX macros
and FORMAT_foo_MAX macros, making STRLEN the only exception, so let's adjust
STRLEN() to be unsigned too.
Also: I don't think this is currently used anywhere, but if any of those macros
were used as an argument to sprintf, size_t would require a cast. ("%*s"
requires an int/unsigned argument.)
