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This commit adds a function which converts a bus message containing the
environment variables to a JSON object and uses this function to support
JSON formatted output for the "systemctl show-environment" command.
Fixes#21348
This rule has been shipped in Fedora's gnome-bluetooth package for 10
years and is used by the gnome-settings-daemon rfkill plugin (used by
gnome-bluetooth, gnome-shell, and gnome-control-center) to monitor
and change software rfkill switch settings.
The documentation of sd_bus_get_timeout wrongfully states that the returned time-value is relative. In fact, it is an absolute value which is based of CLOCK_MONOTONIC. This change corrects that documentation.
1) don't ignore stack-allocated variables, since they may hide
heap-allocated stuff (compound types)
2) check if there's a return between the variable declaration and its
initialization; if so, treat the variable as uninitialized
3) introduction of 2) increased the query runtime exponentially, so
introduce some optimizations to bring it back to some reasonable
values
otherwise we end up with more than one job with the same identifier in
one run, causing some of them to get cancelled unexpectedly.
A quick follow-up to 85bd394df57fe45c2873605e2c1d1d79e83e853d.
Follow-up for 7d85383edbab73274dc81cc888d884bb01070bc2.
Apparently the previous limit set on the max number of inodes for /dev was too
small as a system with 4096 LUNs attached can consume up to 95k inodes for
symlinks:
# /bin/df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
devtmpfs 49274377 95075 49179302 1% /dev
Hence this patch bumps the limit from 64k to 128k although the new limit is
still pretty arbitrary (that said, not sure if it really makes sense to put
such absolute limit number).
In 9cf75222f20 the conf.get() statements for `bpf-framework` and
`valgrind` were dropped, which causes the respective features to always
show as disabled (since they don't follow the "standard" naming scheme
with HAVE_/ENABLE_ prefixes).
This is a slightly modified version of the original
`cpp/uninitialized-local` CodeQL query which focuses only on variables
using the cleanup macros. Since this has proven to cause issues in the
past, let's panic on every uninitialized variable using any of the
cleanup macros (as long as they're written using the __cleanup__
attribute).
Some test results from a test I used when writing the query:
```
#define _cleanup_foo_ __attribute__((__cleanup__(foo)))
#define _cleanup_(x) __attribute__((__cleanup__(x)))
static inline void freep(void *p) {
*(void**)p = mfree(*(void**) p);
}
#define _cleanup_free_ _cleanup_(freep)
static inline void foo(char **p) {
if (*p)
*p = free(*p);
}
int main(void) {
__attribute__((__cleanup__(foo))) char *a;
char *b;
_cleanup_foo_ char *c;
char **d;
_cleanup_free_ char *e;
int r;
r = fun(&e);
if (r < 0)
return 1;
puts(a);
puts(b);
puts(c);
puts(*d);
puts(e);
return 0;
}
```
```
+| test.c:23:14:23:14 | e | The variable $@ may not be initialized here, but has a cleanup handler. | test.c:20:26:20:26 | e | e |
+| test.c:27:10:27:10 | a | The variable $@ may not be initialized here, but has a cleanup handler. | test.c:16:45:16:45 | a | a |
+| test.c:29:10:29:10 | c | The variable $@ may not be initialized here, but has a cleanup handler. | test.c:18:25:18:25 | c | c |
```
Get the cgroup root path from the current PID, so that when
ran by the user manager we can get to the right path.
Eg: foo.slice:10% will check under:
/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/foo.slice/cpu.pressure
Follow-up for 81513b382b24a7f3602987f71042d075ca27d1a5
It could work, but it doesn't make much sense. If we already have openssl as
the cryptolib that provides the necessary support, let's not bring in another
library. Disallowing this simplifies things and reduces our support matrix.
This makes
- drop peers_with_unresolved_endpoint and peers_with_failed_endpoint,
- drop destroy handler for sd_resolve_query, and manage each query by peer,
- add random fluctuation to the timeout for retry handler,
- retry timer event source is now managed by peer,
- use sd_event_source_disable_unref().
When parse_ip_port() is directly used in a conf parser, then that's
fine, as the rvalue is already truncated.
When parse_ip_port() is used when e.g. parsing IP address with port,
then we should really refuse white space after colon.
