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Tue Apr 17 03:35:24 JST 2018
Fork#38207: MinGW.org glob(3) function implementation mishandles the GLOB_BRACE feature
Open Date: 2018-04-15 19:47
Last Update: 2018-04-16 19:35
URL for this Ticket:
https://osdn.net//projects/mingw/ticket/38207
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Last Changes/Comment on this Ticket:
2018-04-16 19:35 Updated by: keith
* Status Update from Open to Closed
* Resolution Update from None to Fixed
Comment:
I've now applied the two patches, and committed to the git repository; the updates will be incorporated into the next WSL release.
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Ticket Status:
Reporter: keith
Owner: keith
Type: Issues
Status: Closed
Priority: 5 - Medium
MileStone: (None)
Component: WSL
Severity: 5 - Medium
Resolution: Fixed
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Ticket details:
The glob(3) function is provided by libmingwex.a. In addition to its fundamentally POSIX.1-2008 compliant behaviour, it also supports several MinGW.org specific features, and aims to support the GNU GLOB_BRACE feature. Unfortunately, the MinGW.org implementation does not entirely conform to behavioural expectations of GNU's own glibc implementation, (cf. this mailing list thread); specifically:–
The brace-enclosed expression may not be adequately checked for well-formedness, prior to expansion, and
An expression comprising only a single item is expanded anyway, and the enclosing braces are discarded; this differs from expected GNU behaviour, which does not result in expansion of expressions comprising fewer than two items.
Additionally, the usage of MinGW.org's glob(3) implementation within the MinGW C runtime start-up code, when the GLOB_BRACE feature is enabled within the _CRT_glob configuration variable, does not disable brace expansion for expressions within quoted command arguments, as it should.
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URL for this Ticket:
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