This reverts commit ac0184d608. That
commit added the use of qHash in qt_safe_ftok, which made ftok even more
unsafe than previously. Since the algorithm in qHash can change across
Qt versions, we need a stable algorithm instead.
[ChangeLog][Important Behavior Changes] Reverted a change that caused Qt
5.6 through 5.8 not to connect to QSystemSemaphore and QSharedMemory
created by running applications using Qt earlier than
5.6. Unfortunately, this means that Qt 5.9 will not connect to 5.6-5.8.
Task-number: QTBUG-60771
Change-Id: Ibc3472e1c11d46358357fffd14bf51aeb48ef2c8
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new LGPL header instead of LGPL21 one
(in those files which will be under LGPL v3)
Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
The ftok function unfortunately can return duplicate keys even for different
files if the same project id is used. This is discussed e.g. in Stevens'
"Advanced Programming in the UNIX Environment".
We want the key to be predictable so we cannot just pass a random number as
the project id. To reduce the propability of key collisions we hash the file
name with the project number as seed for a predictable value. This is the same
approach taken e.g. by Apache, but the real fix is to move away from System V
IPC completely once this is feasible on our supported platforms.
Task-number: QTBUG-48375
Change-Id: If1a57f215f7ddd147aa38919907cfb83db07aea0
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
When creating a string it would cause a malloc which would reset
GetLastError() so we need to ensure that GetLastError() is the first thing
it calls if a Windows API call fails.
Task-number: QTBUG-27765
Change-Id: I5cc4ce59aa1f03a0ec978fe54949a7931a225d52
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.
Outdated header.LGPL removed (use header.LGPL21 instead)
Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)
Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination
Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
This patch is a forward-port from 4.8 branch
(d869e1ad4b0007757e97046609de2097cd9e9c5d).
Change-Id: I6ae36a5417d1176fbecf775668f6033b1cb22a94
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Thiago Macieira
Jani Heikkinen
Louai Al-Khanji
Andy Shaw
Tobias Koenig