Package: gnubg Version: 1.06.002-1 Severity: normal Tags: upstream Dear Maintainer,
Follow these steps to reproduce the bug: 1. Start GNU Backgammon in graphical mode (just type "gnubg" at the command prompt, and make sure X is running). 2. Start a new game by clicking "New" or select File -> New... 3. Select "Human vs. Human" and click "OK". 4. Take note of the numbers on the dice. 5. As the player whose turn it is, offer a resignation by clicking "Resign" or select Game -> Resign, and select any of the options. This will remove the dice from the board. 6. As the other player, decline the resignation by clicking "Reject" or select Game -> Reject. 7. Now, as the first player again, roll the dice by clicking in the area on the board in which they would be rolled. Note that the roll is different than it was before the resignation offer (if it is not, repeat steps 5-7 until it is). This allows the player to cheat by re-rolling the dice until a good roll is available. If you can get the computer into a state where it will not accept a normal resign (play badly until a gammon/backgammon is inevitable), this bug is also reproducible, allowing the player to cheat against the computer. Ideally, in step 5. above, when the player offers a resignation, GNU Backgammon should leave the dice on the board, and not allow the player to re-roll them. Note also that after step 6., if you don't roll the dice and instead resign again immediately, and you choose a level less than or equal to the level chosen before (e.g. normal), then it will print "<player> has already declined your offer of a <single game|gammon|backgammon>." and will not offer the resignation a second time. This should also happen when the dice are rolled again before the second resignation. However it does not. I suppose that is a different bug, but it seemed related enough to mention it here. Also note that in text mode neither of these bugs are present: $ gnubg -t [...] (No game) set player 0 human Moves for foo must now be entered manually. (No game) set player 1 human Moves for bar must now be entered manually. (No game) new game foo rolls 3, bar rolls 1. [...] (foo) resign foo offers to resign a single game. [...] (bar) reject bar declines the single game. [...] (foo) roll You have already rolled the dice. (foo) resign bar has already declined your offer of a single game. (foo) exit Are you sure you want to discard the current match? y -- System Information: Debian Release: buster/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-5-amd64 (SMP w/2 CPU cores) Kernel taint flags: TAINT_FIRMWARE_WORKAROUND Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages gnubg depends on: ii debconf [debconf-2.0] 1.5.71 ii gnubg-data 1.06.002-1 ii libc6 2.28-10 ii libcairo2 1.16.0-4 ii libcanberra-gtk0 0.30-7 ii libcanberra0 0.30-7 ii libcurl4 7.64.0-3 ii libfreetype6 2.9.1-3 ii libgdk-pixbuf2.0-0 2.38.1+dfsg-1 ii libgl1 1.1.0-1 ii libglib2.0-0 2.58.3-1 ii libglu1-mesa [libglu1] 9.0.0-2.1+b3 ii libgmp10 2:6.1.2+dfsg-4 ii libgtk2.0-0 2.24.32-3 ii libgtkglext1 1.2.0-9 ii libpango-1.0-0 1.42.4-6 ii libpangocairo-1.0-0 1.42.4-6 ii libpng16-16 1.6.36-5 ii libpython2.7 2.7.16-2 ii libreadline7 7.0-5 ii libsqlite3-0 3.27.2-2 gnubg recommends no packages. Versions of packages gnubg suggests: ii sensible-utils 0.0.12 -- debconf information: * gnubg/build-bearoffs: true
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