apt/apt-pkg, branch 1.9.12

(temporarily) unhide pkgDPkgPM again to have python-apt compile

2020-02-27T08:45:50Z

pkgcache: Add operator bool() to map_pointer

2020-02-27T08:45:11Z

apt(8): Wait for frontend and cache lock

2020-02-26T19:36:52Z

This is a rework of !6 with additional stuff for the frontend lock, so we can lock the frontend lock and then keep looping over dpkg lock.

apt-pkg: default visibility to hidden

2020-02-26T19:34:54Z

cacheset: Fix -Wdeprecated-copy warnings

2020-02-26T17:59:39Z

Remove the operator= from Container_iterator, as it was basically just the default anyway, and add copy constructors to *Interface that match their operator=. Tried adding copy constructor to Container_iterator, but that only made things worse.

Fix various compiler warnings

2020-02-26T17:59:31Z

Parse records including empty tag names correctly

2020-02-26T17:12:18Z

No sensible file should include these, but even insensible files do not gain unfair advantages with it as this parser does not deal with security critical files before they haven't passed other checks like signatures or hashsums. The problem is that the parser accepts and parses empty tag names correctly, but does not store the data parsed which will effect later passes over the data resulting e.g. in the following tag containing the name and value of the previous (empty) tag, its own tagname and its own value or a crash due to an attempt to access invalid memory depending on who passes over the data and what is done with it. This commit fixes both, the incidient of the crash reported by Anatoly Trosinenko who reproduced it via apt-sortpkgs: | $ cat /tmp/Packages-null | 0: | PACKAGE:0 | | : | PACKAGE: | | PACKAGE:: | $ apt-sortpkgs /tmp/Packages-null and the deeper parsing issue shown by the included testcase. Reported-By: Anatoly Trosinenko References: 8710a36a01c0cb1648926792c2ad05185535558e

cache: Swap locations of hashtables, hide them from non-apt users

2020-02-26T13:42:35Z

Only expose the locations of the hasthables if APT_COMPILING_APT is set.

Make metaIndex::GetNotBefore virtual

2020-02-26T13:32:36Z

pkgsystem: Drop more virtual workaround shenanigans

2020-02-26T13:30:03Z