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win: fix uv_fs_access on directories

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For posterity, these are the rules for access on Windows (taken from
CPython's implementation), Access is possible if:

* Write access wasn't requested
* The file isn't read-only
* It's a directory (directories cannot be read-only on Windows)

PR-URL: https://github.com/libuv/libuv/pull/316
Reviewed-By: Bert Belder <bertbelder@gmail.com>
This commit is contained in:
Saúl Ibarra Corretgé 2015-04-12 18:48:56 +02:00
parent cdc10a907a
commit 7dcc3e0cf0
2 changed files with 24 additions and 5 deletions
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17
src/win/fs.c
View File

@ -1310,14 +1310,21 @@ static void fs__access(uv_fs_t* req) {
return;
}
if ((req->flags & W_OK) &&
((attr & FILE_ATTRIBUTE_READONLY) ||
(attr & FILE_ATTRIBUTE_DIRECTORY))) {
/*
* Access is possible if
* - write access wasn't requested,
* - or the file isn't read-only,
* - or it's a directory.
* (Directories cannot be read-only on Windows.)
*/
if (!(req->flags & W_OK) ||
!(attr & FILE_ATTRIBUTE_READONLY) ||
(attr & FILE_ATTRIBUTE_DIRECTORY)) {
SET_REQ_RESULT(req, 0);
} else {
SET_REQ_WIN32_ERROR(req, UV_EPERM);
return;
}
SET_REQ_RESULT(req, 0);
}

12
test/test-fs.c
View File

@ -1156,6 +1156,7 @@ TEST_IMPL(fs_access) {
/* Setup. */
unlink("test_file");
rmdir("test_dir");
loop = uv_default_loop();
@ -1199,6 +1200,16 @@ TEST_IMPL(fs_access) {
ASSERT(req.result == 0);
uv_fs_req_cleanup(&req);
/* Directory access */
r = uv_fs_mkdir(loop, &req, "test_dir", 0777, NULL);
ASSERT(r == 0);
uv_fs_req_cleanup(&req);
r = uv_fs_access(loop, &req, "test_dir", W_OK, NULL);
ASSERT(r == 0);
ASSERT(req.result == 0);
uv_fs_req_cleanup(&req);
/*
* Run the loop just to check we don't have make any extraneous uv_ref()
* calls. This should drop out immediately.
@ -1207,6 +1218,7 @@ TEST_IMPL(fs_access) {
/* Cleanup. */
unlink("test_file");
rmdir("test_dir");
MAKE_VALGRIND_HAPPY();
return 0;