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Fix fd_fdstat_set_rights to set the rights.

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After checking that no new rights are being added, actually set the
rights, which may be a subset of the original rights.
This commit is contained in:
Dan Gohman
2019-05-19 08:36:57 -07:00
committed by Jakub Konka
parent c5bda1f4e1
commit 3372e47e5a
1 changed files with 5 additions and 2 deletions
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7
src/hostcalls/fs.rs
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@@ -344,13 +344,13 @@ pub fn fd_fdstat_set_flags(
#[wasi_common_cbindgen] #[wasi_common_cbindgen]
pub fn fd_fdstat_set_rights( pub fn fd_fdstat_set_rights(
wasi_ctx: &WasiCtx, wasi_ctx: &mut WasiCtx,
fd: wasm32::__wasi_fd_t, fd: wasm32::__wasi_fd_t,
fs_rights_base: wasm32::__wasi_rights_t, fs_rights_base: wasm32::__wasi_rights_t,
fs_rights_inheriting: wasm32::__wasi_rights_t, fs_rights_inheriting: wasm32::__wasi_rights_t,
) -> wasm32::__wasi_errno_t { ) -> wasm32::__wasi_errno_t {
let host_fd = dec_fd(fd); let host_fd = dec_fd(fd);
let fe = match wasi_ctx.fds.get(&host_fd) { let fe = match wasi_ctx.fds.get_mut(&host_fd) {
Some(fe) => fe, Some(fe) => fe,
None => return wasm32::__WASI_EBADF, None => return wasm32::__WASI_EBADF,
}; };
@@ -359,6 +359,9 @@ pub fn fd_fdstat_set_rights(
{ {
return wasm32::__WASI_ENOTCAPABLE; return wasm32::__WASI_ENOTCAPABLE;
} }
fe.rights_base = fs_rights_base;
fe.rights_inheriting = fs_rights_inheriting;
wasm32::__WASI_ESUCCESS wasm32::__WASI_ESUCCESS
} }