[Aptitude-devel] Bug#806595: aptitude: Changelog download throws warning: "W: Can't drop privileges for downloading as file '/tmp/aptitude-root.15442:qGi6mn/aptitudeDownload6J+8J:+PsVGmTNm^.^::Lz:%.Hi55VKA' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)"

[Axel Beckert]

Package: aptitude
Version: 0.7.4-2

Hi,

on the commandline as well in the TUI, aptitude throws a warning when
trying to download and display a changelog as root as well as user:

As root:

# aptitude changelog apt > /dev/null
W: Can't drop privileges for downloading as file '/tmp/aptitude-root.15442:qGi6mn/aptitudeDownload6J+8J:+PsVGmTNm^.^::Lz:%.Hi55VKA' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
#

As user:

% aptitude changelog apt > /dev/null
W: chmod 0700 of directory /var/lib/apt/lists/partial failed - SetupAPTPartialDirectory (1: Operation not permitted)
W: chmod 0700 of directory /var/cache/apt/archives/partial failed - SetupAPTPartialDirectory (1: Operation not permitted)
%

It is though able to display the changelog in all cases I tested.

apt-get doesn't show this warning:

# apt-get changelog apt > /dev/null
#

$ apt-get changelog apt > /dev/null
$

-- Package-specific info:
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-- System Information:
Debian Release: stretch/sid
  APT prefers unstable
  APT policy: (990, 'unstable'), (600, 'testing'), (111, 'buildd-unstable'), (111, 'buildd-experimental'), (110, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.3.0-rc5-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages aptitude depends on:
ii  aptitude-common           0.7.4-2
ii  libapt-pkg5.0             1.1.2
ii  libboost-iostreams1.58.0  1.58.0+dfsg-4
ii  libc6                     2.19-22
ii  libcwidget3v5             0.5.17-4
ii  libgcc1                   1:5.2.1-26
ii  libncursesw5              6.0+20151024-2
ii  libsigc++-2.0-0v5         2.6.2-1
ii  libsqlite3-0              3.9.2-1
ii  libstdc++6                5.2.1-26
ii  libtinfo5                 6.0+20151024-2
ii  libxapian22v5             1.2.21-1.2

Versions of packages aptitude recommends:
ii  aptitude-doc-en [aptitude-doc]  0.7.4-2
ii  libparse-debianchangelog-perl   1.2.0-8
ii  sensible-utils                  0.0.9

Versions of packages aptitude suggests:
ii  apt-xapian-index  0.47+nmu2
ii  debtags           2.0.1
ii  tasksel           3.34

-- no debconf information