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Bug 804975 - sys-apps/qingy resetting terminal trigger has incorrect behavoiur
Summary: sys-apps/qingy resetting terminal trigger has incorrect behavoiur
Status: UNCONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo's Team for Core System packages
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-07-29 09:03 UTC by Bogdan
Modified: 2021-08-01 05:49 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


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Description Bogdan 2021-07-29 09:03:53 UTC
Qingy resets login prompt so quickly, that pressed Ctrl-C combination may call qingy trigger, which block tty after some number of prompt resettings.

Please, add some timeout after resetting terminal, before enabling read info from stdin. For example - this timeout may be 333ms (1/3 of second) - it is enough to delay before entering a new login and comfort for human, but not enough to overload the system.

Reproducible: Always

Steps to Reproduce:
1. Configure qingy on tty2.
2. Switch to tty2 (by calling Ctrl-Alt-F2).
3. Stay pressed Ctrl-C combination.
Actual Results:  
qingy block tty for 5 minutes.

Expected Results:  
Qingy must clear/flush stdin at new login prompt session and delay before read new login/password combination.

Please, resets display fully, not just by adding new prompt to the end of display buffer. More info at https://bugs.gentoo.org/show_bug.cgi?id=804972

Expected usage case:
1) start login prompt session;
2) block reading of chars/events/key-combinations from input devices (keyboard/stdin/etc);
3) start delay for unblock input buffer of session;
4) clear display buffer;
5) put login prompt;
6) on delay finished (from point 3) - clear stdin buffer and start reading of next chars/events/key-kombinations from input devices (keyboard/stdin/etc).
Comment 1 Sam James archtester gentoo-dev Security 2021-08-01 05:49:38 UTC
This sounds like it needs to be reported upstream, but it seems rather inactive.