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Auto merge of #74972 - second-state:wasi-right-fix, r=KodrAus

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Fix std::fs::File::metadata permission on WASI target

Previously `std::fs::File::metadata` on wasm32-wasi would call `fd_filestat_get`
to get metadata associated with fd, but that fd is opened without
RIGHTS_FD_FILESTAT_GET right, so it will failed on correctly implemented WASI
environment.

This change instead to add the missing rights when opening an fd.
This commit is contained in:
bors 2020-08-02 09:41:17 +00:00
commit 1e99138078
1 changed files with 1 additions and 0 deletions
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library/std/src/sys/wasi/fs.rs
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@ -331,6 +331,7 @@ impl OpenOptions {
// FIXME: some of these should probably be read-only or write-only...
base |= wasi::RIGHTS_FD_ADVISE;
base |= wasi::RIGHTS_FD_FDSTAT_SET_FLAGS;
base |= wasi::RIGHTS_FD_FILESTAT_GET;
base |= wasi::RIGHTS_FD_FILESTAT_SET_TIMES;
base |= wasi::RIGHTS_FD_SEEK;
base |= wasi::RIGHTS_FD_SYNC;