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Details

Type: Bug
Resolution: Done
Priority: P2: Important
Fix Version/s: 5.9.0 Beta 2
Affects Version/s: 5.6
Component/s: Core: I/O
Labels:
- Reported_by_support_silver
Environment:
Windows

Commits:
f7b44f879cdded7b2c6b604df873f7194e56a63a , 101449a4cfa9c0d216332c6dc8ba826e8109e09d (qtbase/5.8, 12.12.2016, 5.8.1)

Description

QDir::cdUp() does not return false when going up from root of UNC network path. On local hard drive it does return false. In Qt 4.8 it also returns false when cdUp():ing on network path root.

Steps to reproduce:

Run attached sample with valid network path as argument
EXPECTED: The while-loop exits when cdUp():ing first time from the network path root
ACTUAL: cdUp() never returns false, causing infinite loop

Attachments

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qtbug53712_cd.zip
1 kB
07 Jul '16 14:14
qtbug53712_diag.diff
1 kB
06 Jun '16 13:36
qtbug53712_log.txt
47 kB
06 Jun '16 13:36
qtbug53712_nps_diag.diff
2 kB
28 Jun '16 09:12
qtbug53712_nps.zip
1 kB
28 Jun '16 09:12
qtbug53712.zip
1 kB
07 Jun '16 11:23

Issue Links

resulted from

QTBUG-23893 QDir("/").cd("..") is different from QDir("/tmp").cd("../..")

Closed

resulted in

QTBUG-72120 QDir::cleanPath behaviour differs in Qt5 vs Qt4 with regard to UNC paths.

Closed

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For Gerrit Dashboard: QTBUG-53712
#	Subject	Branch	Project	Status	CR	V
161592,2	Rewrite test tst_QDir::cdBelowRoot() to be data-driven.	5.6	qt/qtbase	Status: MERGED	+2	0
161593,1	WIP: Fix cdUp() on Windows network shares.	5.6	qt/qtbase	Status: ABANDONED	-2	0
161766,12	QDir::cleanPath(): Do not cd above root paths (UNC, WinRT)	5.8	qt/qtbase	Status: MERGED	+2	0
161767,10	QDir::cd(): Handle UNC server paths correctly	5.8	qt/qtbase	Status: MERGED	+2	0