Commits on Apr 25, 2023

1. Backport "Allow WASI to open directories without O_DIRECTORY" (byteco… …

   …dealliance#6163)
   
   The `O_DIRECTORY` flag is a request that open should fail if the named
   path is not a directory. Opening a path which turns out to be a
   directory is not supposed to fail if this flag is not specified.
   However, wasi-common required callers to use it when opening
   directories.
   
   With this PR, we always open the path the same way whether or not the
   `O_DIRECTORY` flag is specified. However, after opening it, we `stat` it
   to check whether it turned out to be a directory, and determine which
   operations the file descriptor should support accordingly. In addition,
   we explicitly check whether the precondition defined by `O_DIRECTORY` is
   satisfied.
   
   On Windows, when opening a path which might be a directory using
   `CreateFile`, cap-primitives also removes the `FILE_SHARE_DELETE` mode.
   That means that if we implement WASI's `path_open` such that it always
   uses `CreateFile` on Windows, for both files and directories, then
   holding an open file handle prevents deletion of that file.

   

   jameysharp committed Apr 25, 2023
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2. Update RELEASES.md

   

   jameysharp committed Apr 25, 2023
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