apt/apt-pkg/deb, branch 1.3_pre2

reinstalling local deb file is no downgrade

2016-07-01T11:36:40Z

If we have a (e.g. locally built) deb file installed and do try to install it again apt complained about this being a downgrade, but it wasn't as it is the very same version… it was just confused into not merging the versions together which looks like a downgrade then. The same size assumption is usually good, but given that volatile files are parsed last (even after the status file) the base assumption no longer holds, but is easy to adept without actually changing anything in practice.

write auto-bits before calling dpkg & again after if needed

2016-06-29T14:10:12Z

Writing first means that even in the event of a power-failure the autobit is saved for future processing instead of "forgotten" so that the package is treated as manually installed. In some cases we have to re-run the writing after dpkg is done through as dpkg can let packages disappear and in such cases apt will move autobits around (or in that case non-autobits) which we need to store.

Revert "travis: use gcc-5 instead of gcc(-4.8)"

2016-06-29T10:23:02Z

This reverts commit 2b8221d66a8284042fc53c7bbb14bb9750e9137f. Avoiding the use of GCC >= 5 stuff lets use go back to 4.8 simplifying the travis setup again as well as reducing the backport requirements in general. This is possible because the std::get_time use requiring GCC >= 5 in 9febc2b238e1e322dce1f94ecbed46d595893b52 was replaced by handrolling it in 1d742e01470bba27715a8191c50adde4b39c2f19, so the remaining uses are just small conviniences we can do without. Gbp-Dch: Ignore

Fix buffer overflow in debListParser::VersionHash()

2016-06-28T20:15:50Z

If a package file is formatted in a way that that no space follows a deprecated "<", we would reformat it to "<=" and increase the length of the output by 1, which can break. Under normal circumstances with "<=" this should not be an issue. Closes: #828812

add insecure (and weak) allow-options for sources.list

2016-06-22T12:05:01Z

Weak had no dedicated option before and Insecure and Downgrade were both global options, which given the effect they all have on security is rather bad. Setting them for individual repositories only isn't great but at least slightly better and also more consistent with other settings for repositories.

ensure filesize of deb is included in the hashes list

2016-06-22T12:05:01Z

Filesize is a silly hash all by itself, but in combination with others it can be a strong opponent, so ensuring that it is in the list of hashes and hence checked by the normal course of action the acquire process takes is a good thing.

handle weak-security repositories as unauthenticated

2016-06-22T12:05:01Z

APT can be forced to deal with repositories which have no security features whatsoever, so just giving up on repositories which "just" fail our current criteria of good security features is the wrong incentive. Of course, repositories are better of fixing their setup to provide the minimum of security features, but sometimes this isn't possible: Historic repositories for example which do not change (anymore). That also fixes problem with repositories which are marked as trusted, but are providing only weak security features which would fail the parsing of the Release file. Closes: 827364

merge sources.list lines based on Release filename

2016-06-17T16:09:15Z

Merging by URI means that having sources lines with different URI methods results in 'strange' warning and error messages, which aren't very friendly from a user point of view as not encoding the method in the filename is effectivly an implementation detail. Merging by filename removes these messages and makes everything "work" even if it isn't working the way it is configured as the indexes aren't acquired over the method given, but over the first method for this release file (which argueably is an implementation detail stemming from the filename encoding, too). So either direction isn't perfectly "right", but personally I prefer "magic" over strange error messages (and doing a full-circle detection of this with its own messages which would need to be translated feels like way too much effort for dubious gain). Closes: 826944

don't use FindFile for external Dir::Bin commands

2016-06-14T12:32:14Z

We usually use absolute paths to specific the location of dpkg, apt-key and the like, but there is nothing wrong with using just the command name and instead let exec(3) make the lookup in PATH. We had a wild mixture before, so opting for the more accepting option out of the two seems about right especially as it makes no difference in the default case as apt uses absolute paths.

don't leak dpkg statusfd pipe in debugging

2016-06-10T08:49:41Z

Not a big deal to leak fds in debugging mode, but for completeness. Git-Dch: Ignore