[wp-trac] [WordPress Trac] #33999: WordPress Update issue

[WordPress Trac]

#33999: WordPress Update issue
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 Reporter:  MrZen88          |       Owner:  SergeyBiryukov
     Type:  defect (bug)     |      Status:  closed
 Priority:  normal           |   Milestone:  4.6
Component:  Upgrade/Install  |     Version:  4.2.2
 Severity:  normal           |  Resolution:  fixed
 Keywords:  has-patch        |     Focuses:
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Changes (by ocean90):

 * status:  reopened => closed
 * resolution:   => fixed


Comment:

 In [changeset:"38151"]:
 {{{
 #!CommitTicketReference repository="" revision="38151"
 Filesystem API: Prevent an endless self-calling loop in `wp_tempnam()`.

 Under certain conditions upgrades on Windows may fail because
 `wp_tempnam()` gets called in a loop.
 This can happen when `wp_tempnam()` is called with `\.maintenance` for the
 `$filename` parameter. The function strips the extension, in this case
 `.maintenance`, which results in an empty filename. Because it's empty,
 `wp_tempnam()` calls itself with `dirname( '\.maintenance' )`. On *nix
 systems this would be `"/"` which allows `wp_tempnam()` to fall back on
 `time()`. But on Windows it's `"\"`.

 This change adds the backslash to the list of characters which allow
 `wp_tempnam()` to fall back on `time()`.

 See [32322], [31936].
 Fixes #33999.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/33999#comment:19>
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