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preopens with Caps::all, implement create, remove dir, remove file

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This commit is contained in:
Pat Hickey
2020-12-16 15:15:48 -08:00
parent c0461ca170
commit 27ddbda829
5 changed files with 80 additions and 20 deletions
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22
crates/wasi-c2/src/snapshots/preview_1.rs
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@@ -92,8 +92,8 @@ impl From<wiggle::GuestError> for types::Errno {
PtrBorrowed { .. } => Self::Fault,
InvalidUtf8 { .. } => Self::Ilseq,
TryFromIntError { .. } => Self::Overflow,
InFunc { .. } => Self::Inval,
InDataField { .. } => Self::Inval,
InFunc { err, .. } => types::Errno::from(*err),
InDataField { err, .. } => types::Errno::from(*err),
SliceLengthsDiffer { .. } => Self::Fault,
BorrowCheckerOutOfHandles { .. } => Self::Fault,
}
@@ -527,7 +527,11 @@ impl<'a> wasi_snapshot_preview1::WasiSnapshotPreview1 for WasiCtx {
dirfd: types::Fd,
path: &GuestPtr<'_, str>,
) -> Result<(), Error> {
unimplemented!()
let table = self.table();
let dir_entry: RefMut<DirEntry> = table.get(u32::from(dirfd))?;
let dir = dir_entry.get_cap(DirCaps::CREATE_DIRECTORY)?;
let path = path.as_str()?;
dir.create_dir(path.deref())
}
fn path_filestat_get(
@@ -628,7 +632,11 @@ impl<'a> wasi_snapshot_preview1::WasiSnapshotPreview1 for WasiCtx {
dirfd: types::Fd,
path: &GuestPtr<'_, str>,
) -> Result<(), Error> {
unimplemented!()
let table = self.table();
let dir_entry: RefMut<DirEntry> = table.get(u32::from(dirfd))?;
let dir = dir_entry.get_cap(DirCaps::REMOVE_DIRECTORY)?;
let path = path.as_str()?;
dir.remove_dir(path.deref())
}
fn path_rename(
@@ -651,7 +659,11 @@ impl<'a> wasi_snapshot_preview1::WasiSnapshotPreview1 for WasiCtx {
}
fn path_unlink_file(&self, dirfd: types::Fd, path: &GuestPtr<'_, str>) -> Result<(), Error> {
unimplemented!()
let table = self.table();
let dir_entry: RefMut<DirEntry> = table.get(u32::from(dirfd))?;
let dir = dir_entry.get_cap(DirCaps::UNLINK_FILE)?;
let path = path.as_str()?;
dir.unlink_file(path.deref())
}
fn poll_oneoff(