Add macros to manage bits in a bitfield (e.g. uint32_t, uint64_t, etc),
such as setting, clearing, checking bits, and iterating all set bits.
These are similiar to the bitmap operations, but operate on basic types
instead of requiring a Bitmap object.
IN C23, thread_local is a reserved keyword and we shall therefore
do nothing to redefine it. glibc has it defined for older standard
version with the right conditions.
v2 by Yu Watanabe:
Move the definition to missing_threads.h like the way we define e.g.
missing syscalls or missing definitions, and include it by the users.
Co-authored-by: Yu Watanabe <watanabe.yu+github@gmail.com>
Before:
====
$ systemctl edit network.target
Failed to create directories for "/etc/systemd/system/network.target.d/override.conf": No such file or directory
====
After:
====
$ systemctl edit network.target
Failed to create directories for "/etc/systemd/system/network.target.d/override.conf": Permission denied
====
Fixes#26652.
This ensures that shell string escape operations will not produce output
with invalid UTF-8 from the input by escaping invalid UTF-8 data as if
they were single byte characters.
We checked ERRNO_IS_NOT_SUPPORTED on a possible positive non-error code,
which isn't right.
Fix that. Also add caching, since we are about to call this more often.
We should check alignment *after* determining the pointer points into
our pool, not before. Otherwise might might end up checking alignment of
the pointer relative to our base, even though it is taken relative to
some other base.
Follow-up for: a2b052b29f
See: https://github.com/systemd/systemd/pull/26393#issuecomment-1442295012
If the timezone is specified with a number e.g. +0900 or so, then
let's parse the time as a UTC, and adjust it with the specified time
shift.
Otherwise, if an area has timezone change, e.g.
---
Africa/Casablanca Sun Jun 17 01:59:59 2018 UT = Sun Jun 17 01:59:59 2018 +00 isdst=0 gmtoff=0
Africa/Casablanca Sun Jun 17 02:00:00 2018 UT = Sun Jun 17 03:00:00 2018 +01 isdst=1 gmtoff=3600
Africa/Casablanca Sun Oct 28 01:59:59 2018 UT = Sun Oct 28 02:59:59 2018 +01 isdst=1 gmtoff=3600
Africa/Casablanca Sun Oct 28 02:00:00 2018 UT = Sun Oct 28 03:00:00 2018 +01 isdst=0 gmtoff=3600
---
then we could not determine isdst from the timezone (+01 in the above)
and mktime() will provide wrong results.
Fixes#26370.
Lennart Poettering
Dan Streetman
Daan De Meyer
Yu Watanabe
Luca Boccassi
Zbigniew Jędrzejewski-Szmek
Jan Engelhardt
Cristian RodríguezandYu Watanabe
msizanoen1
Frantisek Sumsal