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Warn user from using umask() in multithreaded webservers (bug #33176)
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@187211 c90b9560-bf6c-de11-be94-00142212c4b1
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1 changed files with 9 additions and 1 deletions
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.6 $ -->
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<!-- $Revision: 1.7 $ -->
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<!-- splitted from ./en/functions/filesystem.xml, last change in rev 1.2 -->
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<refentry id="function.umask">
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<refnamediv>
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@ -22,6 +22,14 @@
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<function>umask</function> without arguments simply returns the
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current umask.
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</para>
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<note>
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<para>
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Avoid using this function in multithreaded webservers. Better change the file
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permissions with <function>chmod</function> after creating the file. Using
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<function>umask</function> can lead to unexspected behavior of concurrently
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running scripts and the webserver itsself because they all use the same umask.
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</para>
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</note>
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</refsect1>
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</refentry>
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