+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#else
+#include <stdlib.h>
+#endif
+
+#if defined(__CYGWIN__) || defined(__WIN32__)
+
+static int win32_set_reparse_data(HANDLE h,
+ u32 reparse_tag,
+ const struct wim_lookup_table_entry *lte,
+ const wchar_t *path,
+ const char *path_utf8)
+{
+ int ret;
+ u8 *buf;
+ size_t len;
+
+ if (!lte) {
+ WARNING("\"%s\" is marked as a reparse point but had no reparse data",
+ path_utf8);
+ return 0;
+ }
+ len = wim_resource_size(lte);
+ if (len > 16 * 1024 - 8) {
+ WARNING("\"%s\": reparse data too long!", path_utf8);
+ return 0;
+ }
+ buf = alloca(len + 8);
+ ret = read_full_wim_resource(lte, buf + 8, 0);
+ if (ret)
+ return ret;
+ *(u32*)(buf + 0) = reparse_tag;
+ *(u16*)(buf + 4) = len;
+ if (!DeviceIoControl(h, FSCTL_SET_REPARSE_POINT, buf, len + 8,
+ NULL, 0, NULL, NULL))
+ {
+ DWORD err = GetLastError();
+ ERROR("Failed to set reparse data on \"%s\"",
+ path_utf8);
+ win32_error(err);
+ ret = WIMLIB_ERR_WRITE;
+ } else
+ ret = 0;
+ return ret;
+}
+
+
+static int win32_extract_chunk(const u8 *buf, size_t len, u64 offset, void *arg)
+{
+ HANDLE hStream = arg;
+
+ DWORD nbytes_written;
+ wimlib_assert(len <= 0xffffffff);
+
+ if (!WriteFile(hStream, buf, len, &nbytes_written, NULL) ||
+ nbytes_written != len)
+ {
+ DWORD err = GetLastError();
+ ERROR("WriteFile(): write error");
+ win32_error(err);
+ return WIMLIB_ERR_WRITE;
+ }
+ return 0;
+}
+
+static int do_win32_extract_stream(HANDLE hStream, struct wim_lookup_table_entry *lte)
+{
+ return extract_wim_resource(lte, wim_resource_size(lte),
+ win32_extract_chunk, hStream);
+}
+
+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,
+ const char *path_utf8)
+{
+ wchar_t *stream_path;
+ HANDLE h;
+ int ret;
+
+ if (stream_name_utf16) {
+ size_t stream_path_nchars;
+ size_t path_nchars = wcslen(path);
+ size_t stream_name_nchars = wcslen(stream_name_utf16);
+
+ stream_path_nchars = path_nchars + 1 + stream_name_nchars;
+
+ stream_path = alloca((stream_path_nchars + 1) * sizeof(wchar_t));
+
+ memcpy(stream_path, path, path_nchars * sizeof(wchar_t));
+ stream_path[path_nchars] = L':';
+ memcpy(&stream_path[path_nchars + 1], stream_name_utf16,
+ stream_name_nchars * sizeof(wchar_t));
+ stream_path[stream_path_nchars] = L'\0';
+
+ /*wsprintf(stream_path, stream_path_nchars, L"%ls:%ls",*/
+ /*path, stream_name_utf16);*/
+ } else {
+ stream_path = (wchar_t*)path;
+ }
+
+ h = CreateFileW(stream_path,
+ GENERIC_WRITE | WRITE_OWNER | WRITE_DAC,
+ 0,
+ NULL,
+ CREATE_ALWAYS,
+ FILE_FLAG_OPEN_REPARSE_POINT |
+ FILE_FLAG_BACKUP_SEMANTICS |
+ inode->i_attributes,
+ NULL);
+ if (!h) {
+ win32_error(GetLastError());
+ ret = WIMLIB_ERR_OPEN;
+ goto fail;
+ }
+
+ if (inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT) {
+ ret = win32_set_reparse_data(h, inode->i_reparse_tag,
+ lte, path, path_utf8);
+ if (ret)
+ goto fail_close_handle;
+ } else {
+ if (lte) {
+ ret = do_win32_extract_stream(h, lte);
+ if (ret)
+ goto fail_close_handle;
+ }
+ }
+
+ if (!CloseHandle(h)) {
+ win32_error(GetLastError());
+ ret = WIMLIB_ERR_WRITE;
+ goto fail;
+ }
+ ret = 0;
+ goto out;
+fail_close_handle:
+ CloseHandle(h);
+fail:
+ ERROR("Error extracting %s", path_utf8);
+out:
+ return ret;
+}
+
+static int win32_extract_streams(struct wim_inode *inode,
+ const wchar_t *path,
+ const char *path_utf8)
+{
+ struct wim_lookup_table_entry *unnamed_lte;
+ int ret;
+
+ ret = win32_extract_stream(inode, path, NULL, unnamed_lte, path_utf8);
+ if (ret)
+ goto out;
+
+ 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) {
+ ret = win32_extract_stream(inode,
+ path,
+ (const wchar_t*)ads_entry->stream_name,
+ ads_entry->lte,
+ path_utf8);
+ if (ret)
+ goto out;
+ }
+ }
+ ret = 0;
+out:
+ return ret;
+}
+
+static int win32_set_security_data(const struct wim_inode *inode,
+ const wchar_t *path,
+ const struct wim_security_data *sd,
+ const char *path_utf8)
+{
+ 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 \"%s\"", path_utf8);
+ win32_error(err);
+ return WIMLIB_ERR_WRITE;
+ }
+ return 0;
+}
+
+#else
git://wimlib.net / wimlib / commitdiff