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Graphics protocol: Only delete temporary image-data files if they are in a known temporary file location

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Kovid Goyal
2018-12-11 10:00:43 +05:30
parent 4a8562a85f
commit d20c65ef80
5 changed files with 41 additions and 7 deletions
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docs/graphics-protocol.rst
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@@ -201,7 +201,11 @@ Value of `t` Meaning
================== ============
``d`` Direct (the data is transmitted within the escape code itself)
``f`` A simple file
``t`` A temporary file, the terminal emulator will delete the file after reading the pixel data
``t`` A temporary file, the terminal emulator will delete the file after reading the pixel data. For security reasons
the terminal emulator should only delete the file if it
is in a known temporary directory, such as :file:`/tmp`,
:file:`/dev/shm`, :file:`TMPDIR env var if present` and any platform
specific temporary directories.
``s`` A `POSIX shared memory object <http://man7.org/linux/man-pages/man7/shm_overview.7.html>`_.
The terminal emulator will delete it after reading the pixel data
================== ============