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Regression intoduced in 23e64f6d0facf9610c1042326ad9850e071e8349
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Dropping privileges is an involved process for code and system alike so
ideally we want to verify that all the work wasn't in vain. Stuff
designed to sidestep the usual privilege checks like fakeroot (and its
many alternatives) have their problem with this through, partly through
missing wrapping (#806521), partly as e.g. regaining root from an
unprivileged user is in their design. This commit therefore disables
most of these checks by default so that apt runs fine again in a
fakeroot environment.
Closes: 806475
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This also deals with the unlikely case of groups being mentioned
multiple times or if the effective group isn't mentioned at all.
In practice, it is a debugging aid through like for #806475.
Git-Dch: Ignore
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Git-Dch: Ignore
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debci seems to have a cleaner environment now and even if not we could
never guess nogroup, so figure it out properly via 'id'.
Git-Dch: Ignore
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Git-Dch: Ignore
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Seems like a simpler workaround than forcing a lower optimization
level just for this for all of apt.
See also:
https://bugs.launchpad.net/ubuntu/+source/gcc-5/+bug/1473674
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Git-Dch: Ignore
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Git-Dch: Ignore
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Git-Dch: Ignore
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Closes: #806422
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Git-Dch: Ignore
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Git-Dch: ignore
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If it does not exist disabled priv dropping as there is nothing
we can drop to. This will unblock people with special chroots
or systems that deleted the "_apt" user.
Closes: #806406
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This fixes a regression caussed by commit
95278287f4e1eeaf5d96749d6fc9bfc53fb400d0
that moved the error detection of RunFds() later into the loop.
However this broke detecting issues like dead acquire methods.
Instead of relying on the global error state (which is bad)
we now pass a boolean value back from RunFds() and break on
false.
Closes: #806406
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Unfortunately it seems like git-buildpackage does not have a
pre-export hook so the hook is disabled for now.
Git-Dch: ignore
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Git-Dch: ignore
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debian/experimental
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Git-Dch: Ignore
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Never updating this information is wrong, updating it automatically
isn't super correct either, but it seems conventional to have it and
updating it more often than needed seems better than updating it never.
Git-Dch: Ignore
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In 12f7536 I chose to opt for a slightly better text which avoids
assigning copyright to the FSF (not because it would be wrong to do it,
but is usually not what the contributor intended, but just the default.
xgettext has a --foreign flag for avoiding the copyright, but po4a
hasn't and an empty copyright-holder doesn't work either, so this little
rework of files with sed and cat.
Git-Dch: Ignore
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The manpages were fixed by Justin B Rye, lets deal with the rest now.
Git-Dch: Ignore
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Git-Dch: Ignore
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We do not show the architecture as a dedicated field as this is rather
technical information, but as packagename it makes sense to show the
architecture as other part of apt will refer to it in this way.
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Reference mail:
https://lists.debian.org/debian-l10n-english/2015/11/msg00006.html
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In 8d041b4f we made apt figure out based on the last Release file it has
if it should request a file or not given that the hashes changed or not.
So if we have a last Release file and do a request, do not sent a
Last-Modified header as we expect a change so much that a non-change
would indeed be an error. The Last-Modified header is therefore at best
ignored by the server, so sending it is just wasted effort. In the worst
case as time is a fragile thing the server decides against sending us an
update with the idea that we already have the latest content, which we
know for a fact that we haven't. Given that we sent less information to
the server our request is on its own also less identifiable as coming
from a returning or new user.
The disadvantage is that if we end up getting an old index file after
getting a new Release file from another mirror the old mirror will not
be able to tell us 'Hit', but instead sends us the complete file we
discard, but both lets us end up with the same error class in the end,
so the difference isn't big in practice.
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Reported-By: codespell
Git-Dch: Ignore
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Out of memory and similar circumstanzas could cause MMap::Map to fail
and especially the mmap/malloc calls in it. With some additional
checking we can avoid segfaults and similar in such situations – at
least in theory as if this is a real out of memory everything we do to
handle the error could just as well run into a memory problem as well…
But at least in theory (if MMap::Map is made to fail always) we can deal
with it so good that a user actually never sees a failure (as the cache
it tries to load with it fails and is discarded, so that DynamicMMap
takes over and a new one is build) instead of segfaulting.
Closes: 803417
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If the config.{sub,guess} files we linked in were newer than our
configure script we ended up recreating configure and then rerun it
without all the configuration options which were (potentially) present
for a previous run.
We avoid this by changing to the same ruleset as in the debian/rules
file which compares the config.* files against a stamp file rather than
the configure script itself as its the configuration itself which
depends on all scripts, not configure on the config scripts.
While at it, we also drop the 'make -s dirs' call as we don't need to do
it explicitly here as proper dependencies will take care of it.
Thanks: Helmut Grohne for the detailed bugreport.
Closes: 804923
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The hack introduced in aa91826f is replaced with a hopefully better
working "proper" solution with a new variable just for the standard we
use everywhere we use CXXFLAGS.
Git-Dch: Ignore
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In ce1f3a2c we started warning about failing unlinking, which we
consistently do for directories. That isn't a problem as directories
usually aren't in the places we do want to clean up – with the potential
exeception of "lost+found", so lets ignore it like we ignore our own
partial/ subdirectory.
Closes: 805424
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Git-Dch: Ignore
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space-gapping: '-o option= value'
That is a very old feature (straight from 1998), but it is super
surprising if you try setting empty values and instead get error
messages or a non-empty value as the next parameter is treated as the
value – which could have been empty, so if for some reason you need a
compatible way of setting an empty value try: '-o option="" ""'.
I can only guess that the idea was to support '-o option value', but we
survived 17 years without it, we will do fine in the future I guess.
Similar is the case for '-t= testing' even through '-t testing' existed
before and the code even tried to detect mistakes like '-t= -b' … all
gone now.
Technically that is as its removing a feature replacing it with another
a major interface break. In practice I really hope for my and their
sanity that nobody was using this; but if for some reaon you do: Remove
the space and be done.
I found the patch and the bugreport actually only after the fact, but
its reassuring that others are puzzled by this as well and hence a
thanks is in perfect order here as the patch is practical identical
[expect that this one here adds tests and other bonus items].
Thanks: Daniel Hartwig for initial patch.
Closes: 693092
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Git-Dch: Ignore
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Closes: 805474
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In 0940230d we started dropping privileges for file (and a bit later for
copy, too) with the intend of uniforming this for all methods. The
commit message says that the source will likely fail based on the
compressors already – and there isn't much secret in the repository
content. After all, after apt has run the update everyone can access the
content via apt anyway…
There are sources through which worked before which are mostly
single-deb (and those with the uncompressed files available).
The first one being especially surprising for users maybe, so instead of
failing, we make it so that apt detects that it can't access a source as
_apt and if so doesn't drop (for all sources!) privileges – but we limit
this to file/copy, so the uncompress which might be needed will still
fail – but that failed before this regression.
We display a notice about this, mostly so that if it still fails (e.g.
compressed) the user has some idea what is wrong.
Closes: 805069
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Notices are just hints, but if they are printed in tests, they should be
expected and if not the test should fail. No current test has this
problem, so that is just potential future proving.
Git-Dch: Ignore
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AI_IDN is a glibc extension, but we can worry about this at the time
actually anyone is seriously trying apt on non-glibc systems.
Closes: 763437
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