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This commit is contained in:
Pat Hickey
2021-01-28 12:30:37 -08:00
parent dae022b17f
commit 79e8f17486
1 changed files with 43 additions and 42 deletions
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85
crates/test-programs/wasi-tests/src/bin/path_link.rs
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@@ -1,6 +1,6 @@
use more_asserts::assert_gt; use more_asserts::assert_gt;
use std::{env, process}; use std::{env, process};
use wasi_tests::{assert_errno, create_file, open_scratch_directory}; use wasi_tests::{assert_errno, create_file, open_scratch_directory, TESTCONFIG};
const TEST_RIGHTS: wasi::Rights = wasi::RIGHTS_FD_READ const TEST_RIGHTS: wasi::Rights = wasi::RIGHTS_FD_READ
| wasi::RIGHTS_PATH_LINK_SOURCE | wasi::RIGHTS_PATH_LINK_SOURCE
@@ -151,54 +151,55 @@ unsafe fn test_path_link(dir_fd: wasi::Fd) {
wasi::ERRNO_NOENT wasi::ERRNO_NOENT
); );
// XXX windows doesnt support dangling symlinks - rest of file if TESTCONFIG.support_dangling_symlinks() {
// Create a link to a dangling symlink // Create a link to a dangling symlink
wasi::path_symlink("target", dir_fd, "symlink").expect("creating a dangling symlink"); wasi::path_symlink("target", dir_fd, "symlink").expect("creating a dangling symlink");
// This should succeed, because we're not following symlinks // This should succeed, because we're not following symlinks
wasi::path_link(dir_fd, 0, "symlink", dir_fd, "link") wasi::path_link(dir_fd, 0, "symlink", dir_fd, "link")
.expect("creating a link to a dangling symlink should succeed"); .expect("creating a link to a dangling symlink should succeed");
wasi::path_unlink_file(dir_fd, "symlink").expect("removing a symlink"); wasi::path_unlink_file(dir_fd, "symlink").expect("removing a symlink");
wasi::path_unlink_file(dir_fd, "link").expect("removing a hardlink"); wasi::path_unlink_file(dir_fd, "link").expect("removing a hardlink");
// Create a link to a symlink loop // Create a link to a symlink loop
wasi::path_symlink("symlink", dir_fd, "symlink").expect("creating a symlink loop"); wasi::path_symlink("symlink", dir_fd, "symlink").expect("creating a symlink loop");
wasi::path_link(dir_fd, 0, "symlink", dir_fd, "link") wasi::path_link(dir_fd, 0, "symlink", dir_fd, "link")
.expect("creating a link to a symlink loop should succeed"); .expect("creating a link to a symlink loop should succeed");
wasi::path_unlink_file(dir_fd, "symlink").expect("removing a symlink"); wasi::path_unlink_file(dir_fd, "symlink").expect("removing a symlink");
wasi::path_unlink_file(dir_fd, "link").expect("removing a hardlink"); wasi::path_unlink_file(dir_fd, "link").expect("removing a hardlink");
// Create a link where target is a dangling symlink // Create a link where target is a dangling symlink
wasi::path_symlink("target", dir_fd, "symlink").expect("creating a dangling symlink"); wasi::path_symlink("target", dir_fd, "symlink").expect("creating a dangling symlink");
assert_errno!( assert_errno!(
wasi::path_link(dir_fd, 0, "file", dir_fd, "symlink") wasi::path_link(dir_fd, 0, "file", dir_fd, "symlink")
.expect_err("creating a link where target is a dangling symlink") .expect_err("creating a link where target is a dangling symlink")
.raw_error(),
wasi::ERRNO_EXIST
);
wasi::path_unlink_file(dir_fd, "symlink").expect("removing a symlink");
// Create a link where target is a dangling symlink following symlinks
wasi::path_symlink("target", dir_fd, "symlink").expect("creating a dangling symlink");
// Symlink following with path_link is rejected
assert_errno!(
wasi::path_link(
dir_fd,
wasi::LOOKUPFLAGS_SYMLINK_FOLLOW,
"symlink",
dir_fd,
"link",
)
.expect_err("calling path_link with LOOKUPFLAGS_SYMLINK_FOLLOW should fail")
.raw_error(), .raw_error(),
wasi::ERRNO_EXIST wasi::ERRNO_INVAL
); );
wasi::path_unlink_file(dir_fd, "symlink").expect("removing a symlink");
// Create a link where target is a dangling symlink following symlinks // Clean up.
wasi::path_symlink("target", dir_fd, "symlink").expect("creating a dangling symlink"); wasi::path_unlink_file(dir_fd, "file").expect("removing a file");
}
// Symlink following with path_link is rejected
assert_errno!(
wasi::path_link(
dir_fd,
wasi::LOOKUPFLAGS_SYMLINK_FOLLOW,
"symlink",
dir_fd,
"link",
)
.expect_err("calling path_link with LOOKUPFLAGS_SYMLINK_FOLLOW should fail")
.raw_error(),
wasi::ERRNO_INVAL
);
// Clean up.
wasi::path_unlink_file(dir_fd, "file").expect("removing a file");
} }
fn main() { fn main() {