-static int win32_extract_stream(const struct wim_inode *inode,
- const wchar_t *path,
- const wchar_t *stream_name_utf16,
- struct wim_lookup_table_entry *lte)
-{
- wchar_t *stream_path;
- HANDLE h;
- int ret;
- DWORD err;
- DWORD creationDisposition = CREATE_ALWAYS;
-
- if (stream_name_utf16) {
- /* Named stream. Create a buffer that contains the UTF-16LE
- * string [./]@path:@stream_name_utf16. This is needed to
- * create and open the stream using CreateFileW(). I'm not
- * aware of any other APIs to do this. Note: the '$DATA' suffix
- * seems to be unneeded. Additional note: a "./" prefix needs
- * to be added when the path is not absolute to avoid ambiguity
- * with drive letters. */
- size_t stream_path_nchars;
- size_t path_nchars;
- size_t stream_name_nchars;
- const wchar_t *prefix;
-
- path_nchars = wcslen(path);
- stream_name_nchars = wcslen(stream_name_utf16);
- stream_path_nchars = path_nchars + 1 + stream_name_nchars;
- if (path[0] != L'/' && path[0] != L'\\') {
- prefix = L"./";
- stream_path_nchars += 2;
- } else {
- prefix = L"";
- }
- stream_path = alloca((stream_path_nchars + 1) * sizeof(wchar_t));
- swprintf(stream_path, stream_path_nchars + 1, L"%ls%ls:%ls",
- prefix, path, stream_name_utf16);
- } else {
- /* Unnamed stream; its path is just the path to the file itself.
- * */
- stream_path = (wchar_t*)path;
-
- /* Directories must be created with CreateDirectoryW(). Then
- * the call to CreateFileW() will merely open the directory that
- * was already created rather than creating a new file. */
- if (inode->i_attributes & FILE_ATTRIBUTE_DIRECTORY) {
- if (!CreateDirectoryW(stream_path, NULL)) {
- err = GetLastError();
- if (err != ERROR_ALREADY_EXISTS) {
- ERROR("Failed to create directory \"%ls\"",
- stream_path);
- win32_error(err);
- ret = WIMLIB_ERR_MKDIR;
- goto fail;
- }
- }
- DEBUG("Created directory \"%ls\"", stream_path);
- if (!(inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT)) {
- ret = 0;
- goto out;
- }
- creationDisposition = OPEN_EXISTING;
- }
- }
-
- DEBUG("Opening \"%ls\"", stream_path);
- h = CreateFileW(stream_path,
- GENERIC_WRITE | WRITE_OWNER | WRITE_DAC | ACCESS_SYSTEM_SECURITY,
- 0,
- NULL,
- creationDisposition,
- FILE_FLAG_OPEN_REPARSE_POINT |
- FILE_FLAG_BACKUP_SEMANTICS |
- inode->i_attributes,
- NULL);
- if (h == INVALID_HANDLE_VALUE) {
- err = GetLastError();
- ERROR("Failed to create \"%ls\"", stream_path);
- win32_error(err);
- ret = WIMLIB_ERR_OPEN;
- goto fail;
- }
-
- if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT &&
- stream_name_utf16 == NULL)
- {
- DEBUG("Setting reparse data on \"%ls\"", path);
- ret = win32_set_reparse_data(h, inode->i_reparse_tag, lte, path);
- if (ret)
- goto fail_close_handle;
- } else {
- if (lte) {
- DEBUG("Extracting \"%ls\" (len = %"PRIu64")",
- stream_path, wim_resource_size(lte));
- ret = do_win32_extract_stream(h, lte);
- if (ret)
- goto fail_close_handle;
- }
- }
-
- DEBUG("Closing \"%ls\"", stream_path);
- if (!CloseHandle(h)) {
- err = GetLastError();
- ERROR("Failed to close \"%ls\"", stream_path);
- win32_error(err);
- ret = WIMLIB_ERR_WRITE;
- goto fail;
- }
- ret = 0;
- goto out;
-fail_close_handle:
- CloseHandle(h);
-fail:
- ERROR("Error extracting %ls", stream_path);
-out:
- return ret;
-}
-
-/*
- * Creates a file, directory, or reparse point and extracts all streams to it
- * (unnamed data stream and/or reparse point stream, plus any alternate data
- * streams). This in Win32-specific code.
- *
- * @inode: WIM inode for this file or directory.
- * @path: UTF-16LE external path to extract the inode to.
- *
- * Returns 0 on success; nonzero on failure.
- */
-static int win32_extract_streams(struct wim_inode *inode,
- const wchar_t *path, u64 *completed_bytes_p)
-{
- struct wim_lookup_table_entry *unnamed_lte;
- int ret;
-
- unnamed_lte = inode_unnamed_lte_resolved(inode);
- ret = win32_extract_stream(inode, path, NULL, unnamed_lte);
- if (ret)
- goto out;
- if (unnamed_lte)
- *completed_bytes_p += wim_resource_size(unnamed_lte);
- for (u16 i = 0; i < inode->i_num_ads; i++) {
- const struct wim_ads_entry *ads_entry = &inode->i_ads_entries[i];
- if (ads_entry->stream_name_len != 0) {
- /* Skip special UNIX data entries (see documentation for
- * WIMLIB_ADD_IMAGE_FLAG_UNIX_DATA) */
- if (ads_entry->stream_name_len == WIMLIB_UNIX_DATA_TAG_LEN
- && !memcmp(ads_entry->stream_name_utf8,
- WIMLIB_UNIX_DATA_TAG,
- WIMLIB_UNIX_DATA_TAG_LEN))
- continue;
- ret = win32_extract_stream(inode,
- path,
- (const wchar_t*)ads_entry->stream_name,
- ads_entry->lte);
- if (ret)
- break;
- if (ads_entry->lte)
- *completed_bytes_p += wim_resource_size(ads_entry->lte);
- }
- }
-out:
- return ret;
-}
-
-/*
- * Sets the security descriptor on an extracted file. This is Win32-specific
- * code.
- *
- * @inode: The WIM inode that was extracted and has a security descriptor.
- * @path: UTF-16LE external path that the inode was extracted to.
- * @sd: Security data for the WIM image.
- *
- * Returns 0 on success; nonzero on failure.
- */
-static int win32_set_security_data(const struct wim_inode *inode,
- const wchar_t *path,
- const struct wim_security_data *sd)
-{
- SECURITY_INFORMATION securityInformation = DACL_SECURITY_INFORMATION |
- SACL_SECURITY_INFORMATION |
- OWNER_SECURITY_INFORMATION |
- GROUP_SECURITY_INFORMATION;
- if (!SetFileSecurityW(path, securityInformation,
- (PSECURITY_DESCRIPTOR)sd->descriptors[inode->i_security_id]))
- {
- DWORD err = GetLastError();
- ERROR("Can't set security descriptor on \"%ls\"", path);
- win32_error(err);
- return WIMLIB_ERR_WRITE;
- }
- return 0;
-}
-
-#else /* __CYGWIN__ || __WIN32__ */
-static int extract_regular_file_linked(struct wim_dentry *dentry,
- const char *output_path,
- struct apply_args *args,
- struct wim_lookup_table_entry *lte)