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We create our own directories here and work without root in them, so we
can also test the locking with them as it is how we usually operate.
Git-Dch: Ignore
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Do the same with less code in apt-get. This especially ensures that the
lock file (and the parent directories) exist before we are trying to
lock. It also means that clean now creates the directories if they are
missing so we returned to a proper clean state now.
Git-Dch: Ignore
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We use it in other places already as well even though it is farly new
addition to the POSIX family with 2008, but rolling our own here is
really something which should be avoided in such a important method.
Git-Dch: Ignore
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dpkg wants to know about a package before it can be put on hold, so we
have to at least hint about its existance in the available file it
"maintaince" to know about such stuff. The simple thing would probably
be to just feed all Packages files into dpkg as well, but what would be
the point really? Exactly, so we take a shortcut here and just create
dummies in the available file if we need to which isn't going to be that
common as usually you are holding packages back and not off.
Who would have thought that a simple feature like setting a package on
hold requires more than 200 lines of code… at least with the testcase it
is now explicitly tested code.
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Git-Dch: Ignore
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The tool checks for debconf version before printing the info it
extracts, so that it doesn't extract data which can't be interpreted
before debconf is upgraded. It is only fair to check for this behaviour
in the tests.
Git-Dch: Ignore
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Git-Dch: Ignore
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By convention, if I run a tool with --help or --version I expect it to
exit successfully with the usage, while if I do call it wrong (like
without any parameters) I expect the usage message shown with a non-zero
exit.
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Git-Dch: Ignore
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We have a d-pointer available here, so go ahead and use it which also
helps in hidding some dirty details here. The "hard" part is keeping the
abi for the inlined methods so that they don't break – at least not more
than before as much of the point beside a speedup is support for more
than 256 fields in a single section.
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No idea what the intension was here, but it seems like a leftover from
a workover which happened to be done differently later. As it doesn't
provide anything at the moment we just revert to the previous abi here.
Git-Dch: Ignore
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The change itself is no problem ABI wise, but the remove of the old
undynamic hashtables is, so we bring it back for older abis and happily
use the now available free space to backport more recent additions like
the dynamic hashtable itself.
Git-Dch: Ignore
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Adding a new parameter (with a default) is an ABI break, but you can
overload a method, which is "just" an API break for everyone doing
references to this method (aka: nobody).
Git-Dch: Ignore
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Git-Dch: Ignore
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Git-Dch: Ignore
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We have a bunch of classes which are of no use for the outside world,
but were still exported and so needed to preserve ABI/API. Marking them
as hidden to not export them any longer is a big API break in theory,
but in practice nobody is using them – as if they would its a bug.
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We can't add a new virtual method without breaking the ABI, but we can
freely add new methods, so for older ABIs we just implement this method
with a dynamic_cast, so that clients can be more ignorant about the API
here and especially don't need to pull a very dirty trick by assuming
internal knowledge (like apt-get did here).
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Git-Dch: Ignore
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Git-Dch: Ignore
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For compatibility we use/provide and fill quiet some deprecated methods
and fields, which subsequently earns us a warning for using them. These
warnings therefore have to be disabled for these codeparts and that is
what this change does now in a slightly more elegant way.
Git-Dch: Ignore
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Checking the return value of this (and many other calls) in this
testcase is a good idea, so we do it now.
Reported-By: cppcheck
Git-Dch: Ignore
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"did you intend to multiply instead?" is what cppcheck helpful says and
it is absolutely right. Doesn't make a whole lot of a difference though
as we are talking about 'char' in this testcase, but just to be sure.
Reported-By: cppcheck
Git-Dch: Ignore
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'pos_is_okay'
It does not have any desired sideeffect, so we just mark it as const to
properly advertise this fact to developer, compiler and linter alike.
Reported-By: cppcheck
Git-Dch: Ignore
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The manpage of va_start and co additionally says:
On some systems, va_end contains a closing '}' matching a '{' in
va_start, so that both macros must occur in the same function, and in a
way that allows this.
So instead of return/breaking instantly, we save the return, make a
proper turndown with va_end in all cases and only end after that.
Reported-By: cppcheck
Git-Dch: Ignore
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The testcases have far worse problems if these ever end up being NULL
and/or are not given a value by the method called, but clang is right to
warn about it, just that we don't want to fix it in testcases…
Git-Dch: Ignore
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One word: "doh!" Commit f6d4ab9ad8a2cfe52737ab620dd252cf8ceec43d
disabled the check to prevent apt from downloading bigger patches
than the index it tries to patch. Happens rarly of course, but still.
Detected by scan-build complaining about a dead assignment.
To make up for the mistake a test is included as well.
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Git-dch: ignore
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Git-Dch: ignore
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debian/experimental
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feature/no-more-acquire-guessing
Conflicts:
apt-pkg/acquire-item.cc
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Conflicts:
debian/changelog
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Translation-* is guessed
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suffix" instead of -s for compatibility with older systems
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The pkgAcquire::Run() code works uses a while(ToFetch > 0) loop
over the items queued for fetching. This means that we need to
Deqeueue the item if we call AbortTransaction() to avoid a hang.
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Handle Translation-* files exactly like Packages files (with the
expection that it is ok if a download of them fails). Remove all
"guessing" on apts side. This will elimimnate a bunch of errors
releated to captive portals and similar. Its also more correct
and removes another potential attack vector.
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The worker is the part closest to the methods, which will call the item
methods according to what it gets back from the methods, it is therefore
a better place to change permissions as it is very central and can do it
now at the point the item is assigned to a method rather than then it is
queued for download (and as before while dequeued via Done/Failure).
Git-Dch: Ignore
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Git-Dch: Ignore
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Central methods of our infrastructure like this one responsible for
communication with our methods shouldn't be more complicated then they
have to and not claim to have (albeit unlikely) bugs.
While I am not sure about having improved the first part, the bug is now
gone and a few explicit tests check that it stays that way, so nobody
will notice the difference (hopefully) – expect that this should a very
tiny bit faster as well as we don't manually proceed through the string.
Git-Dch: Ignore
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It is a very simple hashstring, which is why it isn't contributing to
the usability of a list of them, but it is also trivial to check and
calculate, so it doesn't hurt checking it either as it can combined even
with the simplest other hashes greatly complicate attacks on them as you
suddenly need a same-size hash collision, which is usually a lot harder
to achieve.
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Git-Dch: ignore
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Instead of hardcoding Dpkg::MaxArgBytes find out about it using
the sysconf(_SC_ARG_MAX) call.
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It is sometimes handy to have an installed package also in the archive,
but this was until now harder than it should as you had to duplicate the
lines, which is especially dangerous while writing the tests as it
easily happens that these two lines divert and so the same-but-different
version detection kicks in.
Git-Dch: Ignore
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We can use either and some tests exercise this, but the default should
be what we want to use and that is a split out long description file
which is properly mentioned in the Release file.
Git-Dch: Ignore
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Git-Dch: Ignore
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partial files are chowned by the Item baseclass to let the methods work
with them. Now, this baseclass is also responsible for chowning the
files back to root instead of having various deeper levels do this.
The consequence is that all overloaded Failed() methods now call the
Item::Failed base as their first step. The same is done for Done().
The effect is that even in partial files usually don't belong to
_apt anymore, helping sneakernets and reducing possibilities of a bad
method modifying files not belonging to them.
The change is supported by the framework not only supporting being run
as root, but with proper permission management, too, so that privilege
dropping can be tested with them.
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