makes the code less cluttered, and it's harder to introduce leaks.
this has the hypothetical disadvantage that due to freeing being
delayed, the peak memory usage would rise significantly if we chained to
another parse_list() call which produces a big list while already
holding a big list, but that isn't the case anywhere.
... by making a lot of objects unsigned, and some signed.
casts which lose precision and change the sign in one go (ssize_t and
time_t to uint on LP64) are made explicit as well.
this does specifically *not* cover about a bazillion warnings about
size_t being shrunk to uint - these make no sense given the expected
data set size.
mostly ATTR_PRINTFLIKE(*, 0) for functions with a va_list argument.
also, one ATTR_NORETURN and one ATTR_UNUSED, both on functions.
also, an explicit suppression for a format string stored in a variable.
this is mostly to work around the fact that both gcc and clang won't
accept the format string declaration (i.e., will complain with
-Wformat-nonliteral) if the *called* function does not actually take a
va_list.
on the upside, it makes one caller cleaner. yay ...
this is actually potentially counterproductive, as people who have set
SSLVersions and fail to adjust it will _lose_ tls 1.3 support. however,
without the option being there, people (incorrectly) believe that tls
1.3 is not supported.
otherwise the server would interpret it as INBOX contrary to our
expectations, which might lead to moderately surprising effects.
if you really want to sync your ~/maildir/inbox to the IMAP INBOX,
specify it as the Maildir Store's Inbox.
Some distributions (e.g. Fedora) added support for system wide crypto
policies. This is supported in most common crypto libraries including
OpenSSL. Applications can override this policy using their own cipher
string. This commit adds support for specifying the cipher string in
the mbsync configuration.
For example, to exclude Diffie-Hellman, the user can specify
CipherString "DEFAULT:!DH"
in the IMAP Account's configuration.
this is semantically cleaner, and fixes storing the flags in the rare
case that flags are not being synced and the target is not being
expunged, as in this case flags are queried only during the actual
propagation.
the workaround for -Wformat triggered -Wformat-nonliteral in turn.
so instead go back to using pragmas and add a proper gcc version check.
this also works with clang - mostly for qt-creator's code model, which
is clang-based.
amends/reverts 55e65147.
the assumption was that this wouldn't be needed, as maildir_store_msg()
reliably delivers a UID. however, if we crash right before the callback
can record that UID, we'd still use OPEN_FIND in the next run, which
requires the saved next UID.
an effect of 7ce658d is that we can index messages by UID rather than
content (or more specifically, subject). apart from being cleaner, it
allows duplicated subjects.
on modern systems, this makes it likely to end up on tmpfs, which is a
lot faster and ssd-friendlier.
the symlink is not deleted at the end, to minimize fs churn. that means
it will be dangling after a reboot, which gets fixed in the next run.