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fixup! win,fs: get fstat of AppExecLink reparse points

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This commit is contained in:
Hüseyin Açacak 2025-01-08 14:26:44 +03:00
parent 8dc553ac19
commit 4ee3bd5d0a
1 changed files with 38 additions and 40 deletions
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78
src/win/fs.c
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@ -183,7 +183,7 @@ void uv__fs_init(void) {
INLINE static int fs__readlink_handle(HANDLE handle,
char** target_ptr,
WCHAR** target_ptr,
size_t* target_len_ptr) {
char buffer[MAXIMUM_REPARSE_DATA_BUFFER_SIZE];
REPARSE_DATA_BUFFER* reparse_data = (REPARSE_DATA_BUFFER*) buffer;
@ -315,7 +315,15 @@ INLINE static int fs__readlink_handle(HANDLE handle,
}
assert(target_ptr == NULL || *target_ptr == NULL);
return uv_utf16_to_wtf8(w_target, w_target_len, target_ptr, target_len_ptr);
if (target_ptr) {
*target_ptr = uv__malloc((w_target_len + 1) * sizeof(WCHAR));
memcpy(*target_ptr, w_target, w_target_len * sizeof(WCHAR));
(*target_ptr)[w_target_len] = L'\0';
}
if (target_len_ptr) {
*target_len_ptr = w_target_len;
}
return 0;
}
@ -1955,10 +1963,8 @@ INLINE static void fs__stat_prepare_path(WCHAR* pathw) {
INLINE static DWORD fs__stat_get_handle(HANDLE* handle, WCHAR* path, int do_lstat) {
WCHAR* tmp_path = NULL;
char *target = NULL;
size_t len = 0;
int ret_error = 0;
size_t tmp_len = 0;
int i;
if (!do_lstat) {
@ -1970,68 +1976,56 @@ INLINE static DWORD fs__stat_get_handle(HANDLE* handle, WCHAR* path, int do_lsta
for (i = 0; i < 255; i++) {
/* Get file handle */
*handle = CreateFileW(tmp_path,
0,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS,
NULL);
0,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS,
NULL);
if (*handle != INVALID_HANDLE_VALUE) {
break;
}
*handle = CreateFileW(tmp_path,
0,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
NULL);
0,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
NULL);
if (*handle == INVALID_HANDLE_VALUE) {
ret_error = GetLastError();
goto cleanup;
}
if (target) {
uv__free(target);
target = NULL;
}
uv__free(tmp_path);
tmp_path = NULL;
/* Read the target file name */
if (fs__readlink_handle(*handle, (char**)&target, NULL) != 0) {
if (fs__readlink_handle(*handle, (WCHAR**)&tmp_path, NULL) != 0) {
ret_error = GetLastError();
CloseHandle(*handle);
goto cleanup;
}
CloseHandle(*handle);
/* Convert from char* to WCHAR* */
uv__free(tmp_path);
tmp_len = uv_wtf8_length_as_utf16(target);
tmp_path = uv__malloc(tmp_len * sizeof(WCHAR));
uv_wtf8_to_utf16(target, tmp_path, tmp_len);
}
cleanup:
if (target) {
uv__free(target);
target = NULL;
}
if (tmp_path) {
uv__free(tmp_path);
tmp_path = NULL;
}
} else {
*handle = CreateFileW(path,
0,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
NULL);
0,
0,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
NULL);
if (*handle == INVALID_HANDLE_VALUE) {
ret_error = GetLastError();
@ -2041,7 +2035,8 @@ cleanup:
}
INLINE static DWORD fs__stat_directory(WCHAR* path, uv_stat_t* statbuf,
int do_lstat, DWORD ret_error) {
int do_lstat) {
DWORD ret_error;
HANDLE handle = INVALID_HANDLE_VALUE;
HANDLE tmp_handle = INVALID_HANDLE_VALUE;
FILE_STAT_BASIC_INFORMATION stat_info;
@ -2292,7 +2287,7 @@ INLINE static DWORD fs__stat_impl_from_path(WCHAR* path,
if (ret != ERROR_ACCESS_DENIED && ret != ERROR_SHARING_VIOLATION &&
ret != ERROR_CANT_ACCESS_FILE)
return ret;
return fs__stat_directory(path, statbuf, do_lstat, ret);
return fs__stat_directory(path, statbuf, do_lstat);
}
if (fs__stat_handle(handle, statbuf, do_lstat) != 0)
@ -3049,7 +3044,8 @@ static void fs__readlink(uv_fs_t* req) {
}
assert(req->ptr == NULL);
if (fs__readlink_handle(handle, (char**) &req->ptr, NULL) != 0) {
WCHAR* target_ptr = NULL;
if (fs__readlink_handle(handle, (WCHAR**) &target_ptr, NULL) != 0) {
DWORD error = GetLastError();
SET_REQ_WIN32_ERROR(req, error);
if (error == ERROR_NOT_A_REPARSE_POINT)
@ -3058,6 +3054,8 @@ static void fs__readlink(uv_fs_t* req) {
return;
}
uv_utf16_to_wtf8(target_ptr, wcslen(target_ptr), (char**)&req->ptr, NULL);
uv__free(target_ptr);
req->flags |= UV_FS_FREE_PTR;
SET_REQ_RESULT(req, 0);