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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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move label apis to selinux-util.ch or smack-util.ch appropriately.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Repetetive messages can be annoying when running with
SYSTEMD_LOG_LEVEL=debug, but they are sometimes very useful
when debugging problems. Add log_trace which is like log_debug
but becomes a noop unless LOG_TRACE is defined during compilation.
This makes it easy to enable very verbose logging for a subset
of programs when compiling from source.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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https://bugs.freedesktop.org/show_bug.cgi?id=76745
This also adds:
strv: use realloc_multiply() to check for multiplication overflow
by Michal Schmidt <mschmidt@redhat.com>
This could overflow on 32bit, where size_t is the same as unsigned.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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systemctl would print 'CPUQuotaPerSecUSec=(null)' for no limit. This
does not look right.
Since USEC_INFINITY is one of the valid values, format_timespan()
could return NULL, and we should wrap every use of it in strna() or
similar. But most callers didn't do that, and it seems more robust to
return a string ("infinity") that makes sense most of the time, even
if in some places the result will not be grammatically correct.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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It is redundant to store 'hash' and 'compare' function pointers in
struct Hashmap separately. The functions always comprise a pair.
Store a single pointer to struct hash_ops instead.
systemd keeps hundreds of hashmaps, so this saves a little bit of
memory.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Amadeusz Sławiński <amade@asmblr.net>
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If you stack container_of() macros, you will get warnings due to shadowing
variables of the parent context. To avoid this, use unique names for
variables.
Two new helpers are added:
UNIQ: This evaluates to a truly unique value never returned by any
evaluation of this macro. It's a shortcut for __COUNTER__.
UNIQ_T: Takes two arguments and concatenates them. It is a shortcut for
CONCATENATE, but meant to defined typed local variables.
As you usually want to use variables that you just defined, you need to
reference the same unique value at least two times. However, UNIQ returns
a new value on each evaluation, therefore, you have to pass the unique
values into the macro like this:
#define my_macro(a, b) __max_macro(UNIQ, UNIQ, (a), (b))
#define __my_macro(uniqa, uniqb, a, b) ({
typeof(a) UNIQ_T(A, uniqa) = (a);
typeof(b) UNIQ_T(B, uniqb) = (b);
MY_UNSAFE_MACRO(UNIQ_T(A, uniqa), UNIQ_T(B, uniqb));
})
This way, MY_UNSAFE_MACRO() can safely evaluate it's arguments multiple
times as they are local variables. But you can also stack invocations to
the macro my_macro() without clashing names.
This is the same as if you did:
#define my_macro(a, b) __max_macro(__COUNTER__, __COUNTER__, (a), (b))
#define __my_macro(prefixa, prefixb, a, b) ({
typeof(a) CONCATENATE(A, prefixa) = (a);
typeof(b) CONCATENATE(B, prefixb) = (b);
MY_UNSAFE_MACRO(CONCATENATE(A, prefixa), CONCATENATE(B, prefixb));
})
...but in my opinion, the first macro is easier to write and read.
This patch starts by converting container_of() to use this new helper.
Other macros may follow (like MIN, MAX, CLAMP, ...).
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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This way we can use it on non-const strings, and don't end up with a
const'ified result.
This is similar to libc's strstr() which also takes a const string but
returns a non-const one.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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This way we can use it on non-const strings, and don't end up with a
const'ified result.
This is similar to libc's strstr() which also takes a const string but
returns a non-const one.
Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
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The structure of the source tree is basically correct and this is
about as far as we can go without hacking at the C code.
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This commit is a first attempt to isolate the udev code from the
remaining code base. It intentionally does not modify any files
but purely delete files which, on a first examination, appear to
not be needed. This is a sweeping commit which may easily have
missed needed code. Files can be retrieved by doing a checkout
from the previous commit:
git checkout 2944f347d0 -- <filename>
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The warning was invalid, but distracting.
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Draw trees more similar to pstree/findmnt/lsblk/...
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This reduces the number of roundtrips when the client is privileged and
makes the PK dep optional for root clients.
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This was never intended to be pushed.
This reverts commit aea54018a5e66a41318afb6c6be745b6aef48d9e.
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Since we already allow defining the mode of AF_UNIX sockets and FIFO, it
makes sense to also allow specific user/group ownership of the socket
file for restricting access.
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When printing cgroup and sysfs hierarchies, avoid using UTF-8 box drawing
characters if the locale is not UTF-8.
https://bugzilla.redhat.com/show_bug.cgi?id=871153
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journalctl and vconsole-setup both implement utf8 locale detection.
Let's have a common function for it.
The next patch will add another use.
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