#include "wimlib/win32_common.h"
#include "wimlib/apply.h"
-#include "wimlib/capture.h" /* for mangle_pat() */
+#include "wimlib/capture.h" /* for mangle_pat() and match_pattern_list() */
#include "wimlib/dentry.h"
#include "wimlib/error.h"
#include "wimlib/lookup_table.h"
#include "wimlib/resource.h"
#include "wimlib/textfile.h"
#include "wimlib/xml.h"
-#include "wimlib/wildcard.h"
#include "wimlib/wim.h"
#include "wimlib/wimboot.h"
{
struct string_set *pats;
const tchar *path;
- size_t path_nchars;
pats = get_private_data(ctx)->prepopulate_pats;
if (!pats || !pats->num_strings)
if (!path)
return false;
- path_nchars = tstrlen(path);
-
- for (size_t i = 0; i < pats->num_strings; i++)
- if (match_path(path, path_nchars, pats->strings[i],
- OS_PREFERRED_PATH_SEPARATOR, true))
- return true;
-
- return false;
+ return match_pattern_list(path, tstrlen(path), pats);
}
static int
return wim_reshdr_to_hash(&wim->hdr.lookup_table_reshdr, wim, hash);
}
+/* Given a Windows-style path, return the number of characters of the prefix
+ * that specify the path to the root directory of a drive, or return 0 if the
+ * drive is relative (or at least on the current drive, in the case of
+ * absolute-but-not-really-absolute paths like \Windows\System32) */
+static size_t
+win32_path_drive_spec_len(const wchar_t *path)
+{
+ size_t n = 0;
+
+ if (!wcsncmp(path, L"\\\\?\\", 4)) {
+ /* \\?\-prefixed path. Check for following drive letter and
+ * path separator. */
+ if (path[4] != L'\0' && path[5] == L':' &&
+ is_any_path_separator(path[6]))
+ n = 7;
+ } else {
+ /* Not a \\?\-prefixed path. Check for an initial drive letter
+ * and path separator. */
+ if (path[0] != L'\0' && path[1] == L':' &&
+ is_any_path_separator(path[2]))
+ n = 3;
+ }
+ /* Include any additional path separators.*/
+ if (n > 0)
+ while (is_any_path_separator(path[n]))
+ n++;
+ return n;
+}
+
+static bool
+win32_path_is_root_of_drive(const wchar_t *path)
+{
+ size_t drive_spec_len;
+ wchar_t full_path[32768];
+ DWORD ret;
+
+ ret = GetFullPathName(path, ARRAY_LEN(full_path), full_path, NULL);
+ if (ret > 0 && ret < ARRAY_LEN(full_path))
+ path = full_path;
+
+ /* Explicit drive letter and path separator? */
+ drive_spec_len = win32_path_drive_spec_len(path);
+ if (drive_spec_len > 0 && path[drive_spec_len] == L'\0')
+ return true;
+
+ /* All path separators? */
+ for (const wchar_t *p = path; *p != L'\0'; p++)
+ if (!is_any_path_separator(*p))
+ return false;
+ return true;
+}
+
+/* Given a path, which may not yet exist, get a set of flags that describe the
+ * features of the volume the path is on. */
+static int
+win32_get_vol_flags(const wchar_t *path, unsigned *vol_flags_ret,
+ bool *supports_SetFileShortName_ret)
+{
+ wchar_t *volume;
+ BOOL bret;
+ DWORD vol_flags;
+ size_t drive_spec_len;
+ wchar_t filesystem_name[MAX_PATH + 1];
+
+ if (supports_SetFileShortName_ret)
+ *supports_SetFileShortName_ret = false;
+
+ drive_spec_len = win32_path_drive_spec_len(path);
+
+ if (drive_spec_len == 0)
+ if (path[0] != L'\0' && path[1] == L':') /* Drive-relative path? */
+ drive_spec_len = 2;
+
+ if (drive_spec_len == 0) {
+ /* Path does not start with a drive letter; use the volume of
+ * the current working directory. */
+ volume = NULL;
+ } else {
+ /* Path starts with a drive letter (or \\?\ followed by a drive
+ * letter); use it. */
+ volume = alloca((drive_spec_len + 2) * sizeof(wchar_t));
+ wmemcpy(volume, path, drive_spec_len);
+ /* Add trailing backslash in case this was a drive-relative
+ * path. */
+ volume[drive_spec_len] = L'\\';
+ volume[drive_spec_len + 1] = L'\0';
+ }
+ bret = GetVolumeInformation(
+ volume, /* lpRootPathName */
+ NULL, /* lpVolumeNameBuffer */
+ 0, /* nVolumeNameSize */
+ NULL, /* lpVolumeSerialNumber */
+ NULL, /* lpMaximumComponentLength */
+ &vol_flags, /* lpFileSystemFlags */
+ filesystem_name, /* lpFileSystemNameBuffer */
+ ARRAY_LEN(filesystem_name)); /* nFileSystemNameSize */
+ if (!bret) {
+ set_errno_from_GetLastError();
+ WARNING_WITH_ERRNO("Failed to get volume information for "
+ "path \"%ls\"", path);
+ vol_flags = 0xffffffff;
+ goto out;
+ }
+
+ if (wcsstr(filesystem_name, L"NTFS")) {
+ /* FILE_SUPPORTS_HARD_LINKS is only supported on Windows 7 and later.
+ * Force it on anyway if filesystem is NTFS. */
+ vol_flags |= FILE_SUPPORTS_HARD_LINKS;
+
+ if (supports_SetFileShortName_ret)
+ *supports_SetFileShortName_ret = true;
+ }
+
+out:
+ DEBUG("using vol_flags = %x", vol_flags);
+ *vol_flags_ret = vol_flags;
+ return 0;
+}
+
static int
win32_start_extract(const wchar_t *path, struct apply_ctx *ctx)
{
ctx->supported_features.not_context_indexed_files = 1;
+#if 0
if (vol_flags & FILE_SUPPORTS_SPARSE_FILES)
ctx->supported_features.sparse_files = 1;
+#endif
if (vol_flags & FILE_NAMED_STREAMS)
ctx->supported_features.named_data_streams = 1;
if (h == INVALID_HANDLE_VALUE)
goto error;
+ /* Don't make extracted files sparse. It is pointless without also
+ * skipping over runs of zeroes when writing the file, and in fact
+ * increases disk usage --- apparently, allocation sizes in sparse files
+ * are rounded up to multiples of 131072 bytes rather than 4096 bytes.
+ * And in some Windows 7 images, *all* files are set as sparse for some
+ * reason, which causes 1 GB+ of disk space to be wasted on the target
+ * drive of a full extraction.
+ *
+ * WIMGAPI seemingly does not make extracted files sparse either.
+ *
+ * XXX: We really ought to do a proper sparse extraction anyway if the
+ * file meets some heuristic that indicates this would be beneficial.
+ */
+#if 0
if (attributes & FILE_ATTRIBUTE_SPARSE_FILE)
if (!DeviceIoControl(h, FSCTL_SET_SPARSE,
NULL, 0,
NULL, 0,
&bytes_returned, NULL))
goto error_close_handle;
+#endif
if (attributes & FILE_ATTRIBUTE_COMPRESSED)
if (!DeviceIoControl(h, FSCTL_SET_COMPRESSION,
git://wimlib.net / wimlib / blobdiff