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With the selfgrown splitting we got the problem of not recovering
from networks which just reply with invalid data like those sending
us login pages to authenticate with the network (e.g. hotels) back.
The good thing about the InRelease file is that we know that it must
be clearsigned (a Release file might or might not have a detached sig)
so if we get a file but are unable to split it something is seriously
wrong, so there is not much point in trying further.
The Acquire system already looks out for a NODATA error from gpgv,
so this adds a new error message sent to the acquire system in case
the splitting we do now ourselves failed including this magic word.
Closes: #712486
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Testing for global PendingErrors in users of CopyFile is incorrect
in so far as unrelated errors will prevent us from copying perfectly
fine files and checking for the validity of the files is just better
in CopyFiles as it already checks if files are at least opened.
Add also a higher-level error message to the error stack if it fails.
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OpenInternDescriptor failures would cause additional errors to be
generated by double-closing an fd. Other errors (although these
are generated if the method is used incorrectly, so unlikely)
didn't close the fd aswell.
Closes: 704608
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Previously some errors would set the Fail flag while some didn't
without a clear reason as all errors leave a bad FileFd behind,
so we use a helper now to ensure that all errors set the flag.
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Git-Dch: Ignore
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free to escape all lines (we have no lines in our files which need
to be escaped as these would be invalid fieldnames) and while ExecGPGV
would detect dash-escaped text as invalid (as its not expected in
messages with detached signatures) it would be possible to "comment"
lines in (signed) dsc files which are only parsed but not verified
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apt-pkg/deb/deblistparser.cc:
- use OpenMaybeClearSignedFile to be free from detecting and
skipping clearsigning metadata in dsc and Release files
We can't write a "clean" file to disk as not all acquire methods copy
Release files before checking them (e.g. cdrom), so this reverts recombining,
but uses the method we use for dsc files also in the two places we
deal with Release files
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* ftparchive/writer.cc:
- use OpenMaybeClearSignedFile to be free from detecting and
skipping clearsigning metadata in dsc files
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into data and signatures, pass it to gpgv for verification and
recombines it after that in a known-good way without unsigned blocks
and whitespaces resulting usually in more or less the same file as
before, but later code can be sure about the format
* apt-pkg/deb/debmetaindex.cc:
- reenable InRelease by default
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- ExecGPGV is a method which should never return, so mark it as such
and fix the inconsistency of returning in error cases
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- rename RunGPGV to ExecGPGV and move it to apt-pkg/contrib/gpgv.cc
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Guillem Jover
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- Make "..." translatable to fix inconsistencies in the output
of e.g. apt-get update. While this adds new translatable strings,
not having translations for them will not break anything.
Thanks to Guillem Jover. Closes: #696225
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- remove the 64 char limit for login/password in internal usage
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(LP: #1008289)
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- remove _POSIX_SYNCHRONIZED_IO guard in FileFd::Sync() around fsync
as this guard is only needed for fdatasync and not defined on hurd
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it is used for the msync call
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- guard only the msync call with _POSIX_SYNCHRONIZED_IO rather
than also the fallback code as it breaks APT on hurd since 0.9.7.3
as the fallback is now always used on non-linux (Closes: #683354)
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SyncToFd dummy just as we did for compressed files in 0.9.5
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second (filebased) constructor of DynamicMMap (Closes: #677704)
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- refer to APT::Cache-Start in case the growing failed as if -Limit is
really the offender it will be noted in a previous error message.
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- Fix the Fallback option to work correctly, by not calling
realloc() on a map mapped by mmap(), and by using malloc
and friends instead of new[].
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- apply patch from Daniel Hartwig to fix a segfault in case
the LongOpt is empty (Closes: #676331)
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- dup() given compressed fd in OpenDescriptor if AutoClose
is disabled as otherwise gzclose() and co will close it
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- have a dummy SyncToFd around in case of ReadOnly access to a
compressed file as we otherwise on Close() do not delete[] the
char buffer but munmap() it… (Closes: #673815)
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- ensure that we close compressed fds, wait for forks and such even if
the FileFd itself is set to not autoclose the given Fd
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content as this causes some "interesting" hickups resulting in segfaults
as it seems (Closes: #554387, #670979)
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- check that the fd which are closed are valid
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