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freddrakefreddrake
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Clarified documentation of tempnam().
Closes SF bug #635656.
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‎Doc/lib/libos.tex‎

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@@ -972,6 +972,10 @@ \subsection{Files and Directories \label{os-file-dir}}
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filename. Applications are responsible for properly creating and
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managing files created using paths returned by \function{tempnam()};
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no automatic cleanup is provided.
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On \UNIX, the environment variable \envvar{TMPDIR} overrides
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\var{dir}, while on Windows the \envvar{TMP} is used. The specific
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behavior of this function depends on the C library implementation;
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some aspects are underspecified in system documentation.
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\warning{Use of \function{tempnam()} is vulnerable to symlink attacks;
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consider using \function{tmpfile()} instead.}
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Availability: \UNIX, Windows.

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