}
-static int
-image_print_files(WIMStruct *wim)
-{
- return for_dentry_in_tree(wim_root_dentry(wim), print_dentry_full_path,
- NULL);
-}
-
static WIMStruct *
new_wim_struct(void)
{
if (wim) {
wim->in_fd.fd = -1;
wim->out_fd.fd = -1;
+ INIT_LIST_HEAD(&wim->subwims);
}
return wim;
}
+/* Determine if the chunk size is valid for the specified compression type. */
+static bool
+wim_chunk_size_valid(u32 chunk_size, int ctype)
+{
+ u32 order;
+
+ /* Chunk size is meaningless for uncompressed WIMs --- any value is
+ * okay. */
+ if (ctype == WIMLIB_COMPRESSION_TYPE_NONE)
+ return true;
+
+ /* Chunk size must be power of 2. */
+ if (chunk_size == 0)
+ return false;
+ order = bsr32(chunk_size);
+ if (chunk_size != 1U << order)
+ return false;
+
+ /* Order Size
+ * ===== ====
+ * 15 32768
+ * 16 65536
+ * 17 131072
+ * 18 262144
+ * 19 524288
+ * 20 1048576
+ * 21 2097152
+ * 22 4194304
+ * 23 8388608
+ * 24 16777216
+ * 25 33554432
+ * 26 67108864
+ */
+ switch (ctype) {
+ case WIMLIB_COMPRESSION_TYPE_LZX:
+ /* For LZX compression, the chunk size corresponds to the LZX
+ * window size, which according the LZX specification can be any
+ * power of 2 between 2^15 and 2^21, inclusively. All these are
+ * supported by wimlib; however, unfortunately only 2^15 is
+ * supported by WIMGAPI[1] so this value is used by default.
+ *
+ * [1] WIMGAPI (Windows 7) attempts to decompress LZX chunk
+ * sizes > 2^15 but seems to have bug(s) that cause it to fail
+ * or crash. (I tried several tweaks to the LZX data but none
+ * resulted in successful decompression.) WIMGAPI (Windows 8)
+ * appears to refuse to open WIMs with chunk size > 2^15
+ * entirely. */
+ return order >= 15 && order <= 21;
+
+ case WIMLIB_COMPRESSION_TYPE_XPRESS:
+ /* WIMGAPI (Windows 7) didn't seem to support XPRESS chunk size
+ * below 32768 bytes, but larger power-of-two sizes appear to be
+ * supported. 67108864 was the largest size that worked.
+ * (Note, however, that the offsets of XPRESS matches are still
+ * limited to 65535 bytes even when a much larger chunk size is
+ * used!)
+ *
+ * WIMGAPI (Windows 8) seemed to have removed the support for
+ * larger XPRESS chunk sizes and will refuse to open such WIMs.
+ *
+ * 2^15 = 32768 is the default value used for compatibility, but
+ * wimlib can actually use up to 2^26. */
+ return order >= 15 && order <= 26;
+ }
+ return false;
+}
+
+/* Return the default chunk size to use for the specified compression type.
+ *
+ * See notes above in wim_chunk_size_valid(). */
+static u32
+wim_default_chunk_size(int ctype)
+{
+ return 32768;
+}
+
/*
* Calls a function on images in the WIM. If @image is WIMLIB_ALL_IMAGES, @visitor
* is called on the WIM once for each image, with each image selected as the
if (!wim)
return WIMLIB_ERR_NOMEM;
- ret = init_wim_header(&wim->hdr, ctype);
+ ret = init_wim_header(&wim->hdr, ctype, wim_default_chunk_size(ctype));
if (ret != 0)
goto out_free;
wim->lookup_table = table;
wim->refcnts_ok = 1;
wim->compression_type = ctype;
+ wim->out_compression_type = ctype;
+ wim->chunk_size = wim->hdr.chunk_size;
+ wim->out_chunk_size = wim->hdr.chunk_size;
*wim_ret = wim;
return 0;
out_free:
return WIMLIB_ERR_INVALID_IMAGE;
}
- if (wim->hdr.part_number != 1) {
- ERROR("Cannot select an image from a non-first part of a split WIM");
- return WIMLIB_ERR_SPLIT_UNSUPPORTED;
+ if (!wim_has_metadata(wim)) {
+ ERROR("\"%"TS"\" does not contain metadata resources!", wim->filename);
+ if (wim->hdr.part_number != 1)
+ ERROR("Specify the first part of the split WIM instead.");
+ return WIMLIB_ERR_METADATA_NOT_FOUND;
}
/* If a valid image is currently selected, it can be freed if it is not
}
}
-/* API function documented in wimlib.h */
-WIMLIBAPI void
-wimlib_print_wim_information(const WIMStruct *wim)
-{
- struct wimlib_wim_info info;
-
- wimlib_get_wim_info((WIMStruct*)wim, &info);
-
- tputs(T("WIM Information:"));
- tputs(T("----------------"));
- tprintf(T("Path: %"TS"\n"), wim->filename);
- tfputs(T("GUID: 0x"), stdout);
- print_byte_field(info.guid, WIM_GID_LEN, stdout);
- tputchar(T('\n'));
- tprintf(T("Image Count: %d\n"), info.image_count);
- tprintf(T("Compression: %"TS"\n"),
- wimlib_get_compression_type_string(info.compression_type));
- tprintf(T("Part Number: %d/%d\n"), info.part_number, info.total_parts);
- tprintf(T("Boot Index: %d\n"), info.boot_index);
- tprintf(T("Size: %"PRIu64" bytes\n"), info.total_bytes);
- tprintf(T("Integrity Info: %"TS"\n"),
- info.has_integrity_table ? T("yes") : T("no"));
- tprintf(T("Relative path junction: %"TS"\n"),
- info.has_rpfix ? T("yes") : T("no"));
- tputchar(T('\n'));
-}
-
/* API function documented in wimlib.h */
WIMLIBAPI void
wimlib_print_available_images(const WIMStruct *wim, int image)
WIMLIBAPI int
wimlib_print_metadata(WIMStruct *wim, int image)
{
- if (wim->hdr.part_number != 1) {
- ERROR("Cannot show the metadata from part %hu of a %hu-part split WIM!",
- wim->hdr.part_number, wim->hdr.total_parts);
- ERROR("Select the first part of the split WIM to see the metadata.");
- return WIMLIB_ERR_SPLIT_UNSUPPORTED;
- }
return for_image(wim, image, image_print_metadata);
}
-/* API function documented in wimlib.h */
-WIMLIBAPI int
-wimlib_print_files(WIMStruct *wim, int image)
-{
- if (wim->hdr.part_number != 1) {
- ERROR("Cannot list the files from part %hu of a %hu-part split WIM!",
- wim->hdr.part_number, wim->hdr.total_parts);
- ERROR("Select the first part of the split WIM if you'd like to list the files.");
- return WIMLIB_ERR_SPLIT_UNSUPPORTED;
- }
- return for_image(wim, image, image_print_files);
-}
-
/* API function documented in wimlib.h */
WIMLIBAPI int
wimlib_get_wim_info(WIMStruct *wim, struct wimlib_wim_info *info)
info->image_count = wim->hdr.image_count;
info->boot_index = wim->hdr.boot_idx;
info->wim_version = WIM_VERSION;
- info->chunk_size = WIM_CHUNK_SIZE;
+ info->chunk_size = wim->hdr.chunk_size;
info->part_number = wim->hdr.part_number;
info->total_parts = wim->hdr.total_parts;
info->compression_type = wim->compression_type;
return 0;
}
-
-/* API function documented in wimlib.h */
-WIMLIBAPI int
-wimlib_get_boot_idx(const WIMStruct *wim)
-{
- struct wimlib_wim_info info;
-
- wimlib_get_wim_info((WIMStruct*)wim, &info);
- return info.boot_index;
-}
-
-/* API function documented in wimlib.h */
-WIMLIBAPI int
-wimlib_get_compression_type(const WIMStruct *wim)
-{
- struct wimlib_wim_info info;
-
- wimlib_get_wim_info((WIMStruct*)wim, &info);
- return info.compression_type;
-}
-
-/* API function documented in wimlib.h */
-WIMLIBAPI int
-wimlib_get_num_images(const WIMStruct *wim)
-{
- struct wimlib_wim_info info;
-
- wimlib_get_wim_info((WIMStruct*)wim, &info);
- return info.image_count;
-}
-
-/* API function documented in wimlib.h */
-WIMLIBAPI int
-wimlib_get_part_number(const WIMStruct *wim, int *total_parts_ret)
-{
- struct wimlib_wim_info info;
-
- wimlib_get_wim_info((WIMStruct*)wim, &info);
- if (total_parts_ret)
- *total_parts_ret = info.total_parts;
- return info.part_number;
-}
-
-/* API function documented in wimlib.h */
-WIMLIBAPI bool
-wimlib_has_integrity_table(const WIMStruct *wim)
-{
- struct wimlib_wim_info info;
-
- wimlib_get_wim_info((WIMStruct*)wim, &info);
- return info.has_integrity_table;
-}
-
/* API function documented in wimlib.h */
WIMLIBAPI int
wimlib_set_wim_info(WIMStruct *wim, const struct wimlib_wim_info *info, int which)
if (ret)
return ret;
- if (which & WIMLIB_CHANGE_GUID)
+ if (which & WIMLIB_CHANGE_GUID) {
memcpy(wim->hdr.guid, info->guid, WIM_GID_LEN);
+ wim->guid_set_explicitly = 1;
+ }
if (which & WIMLIB_CHANGE_BOOT_INDEX) {
if (info->boot_index > wim->hdr.image_count) {
/* API function documented in wimlib.h */
WIMLIBAPI int
-wimlib_set_boot_idx(WIMStruct *wim, int boot_idx)
+wimlib_set_output_compression_type(WIMStruct *wim, int ctype)
{
- struct wimlib_wim_info info;
+ switch (ctype) {
+ case WIMLIB_COMPRESSION_TYPE_INVALID:
+ break;
+ case WIMLIB_COMPRESSION_TYPE_NONE:
+ case WIMLIB_COMPRESSION_TYPE_LZX:
+ case WIMLIB_COMPRESSION_TYPE_XPRESS:
+ wim->out_compression_type = ctype;
+
+ /* Reset the chunk size if it's no longer valid. */
+ if (!wim_chunk_size_valid(wim->out_chunk_size,
+ wim->out_compression_type))
+ wim->out_chunk_size = wim_default_chunk_size(wim->out_compression_type);
+ return 0;
+ }
+ return WIMLIB_ERR_INVALID_PARAM;
+}
- info.boot_index = boot_idx;
- return wimlib_set_wim_info(wim, &info, WIMLIB_CHANGE_BOOT_INDEX);
+/* API function documented in wimlib.h */
+WIMLIBAPI int
+wimlib_set_output_chunk_size(WIMStruct *wim, uint32_t chunk_size)
+{
+ if (!wim_chunk_size_valid(chunk_size, wim->out_compression_type)) {
+ ERROR("Invalid chunk size (%"PRIu32" bytes) "
+ "for compression type %"TS"!",
+ chunk_size,
+ wimlib_get_compression_type_string(wim->out_compression_type));
+ switch (wim->out_compression_type) {
+ case WIMLIB_COMPRESSION_TYPE_XPRESS:
+ ERROR("Valid chunk sizes for XPRESS are "
+ "32768, 65536, 131072, ..., 67108864.");
+ break;
+ case WIMLIB_COMPRESSION_TYPE_LZX:
+ ERROR("Valid chunk sizes for LZX are "
+ "32768, 65536, 131072, ..., 2097152.");
+ break;
+ }
+ return WIMLIB_ERR_INVALID_CHUNK_SIZE;
+ }
+ if (chunk_size != 32768) {
+ WARNING ("Changing the compression chunk size to any value other than\n"
+ " the default of 32768 bytes eliminates compatibility with\n"
+ " Microsoft's software!");
+ }
+ wim->out_chunk_size = chunk_size;
+ return 0;
}
static int
* intervening time...
*
* Warning: in Windows native builds, realpath() calls the
- * replacement function in win32.c.
+ * replacement function in win32_replacements.c.
*/
wim->filename = realpath(wimfile, NULL);
if (!wim->filename) {
return ret;
}
- if (wim->hdr.total_parts != 1 && !(open_flags & WIMLIB_OPEN_FLAG_SPLIT_OK)) {
- ERROR("\"%"TS"\": This WIM is part %u of a %u-part WIM",
- wimfile, wim->hdr.part_number, wim->hdr.total_parts);
- return WIMLIB_ERR_SPLIT_UNSUPPORTED;
- }
+ if ((open_flags & WIMLIB_OPEN_FLAG_ERROR_IF_SPLIT) &&
+ (wim->hdr.total_parts != 1))
+ return WIMLIB_ERR_IS_SPLIT_WIM;
DEBUG("According to header, WIM contains %u images", wim->hdr.image_count);
} else {
wim->compression_type = WIMLIB_COMPRESSION_TYPE_NONE;
}
+ wim->out_compression_type = wim->compression_type;
+
+ /* Check and cache the chunk size. */
+ wim->chunk_size = wim->out_chunk_size = wim->hdr.chunk_size;
+ if (!wim_chunk_size_valid(wim->chunk_size, wim->compression_type)) {
+ ERROR("Invalid chunk size (%"PRIu32" bytes) "
+ "for compression type %"TS"!",
+ wim->chunk_size,
+ wimlib_get_compression_type_string(wim->compression_type));
+ return WIMLIB_ERR_INVALID_CHUNK_SIZE;
+ }
if (open_flags & WIMLIB_OPEN_FLAG_CHECK_INTEGRITY) {
ret = check_wim_integrity(wim, progress_func);
wim_checksum_unhashed_streams(WIMStruct *wim)
{
int ret;
+
+ if (!wim_has_metadata(wim))
+ return 0;
for (int i = 0; i < wim->hdr.image_count; i++) {
struct wim_lookup_table_entry *lte, *tmp;
struct wim_image_metadata *imd = wim->image_metadata[i];
}
}
if (wim->hdr.total_parts != 1) {
- ERROR("Cannot modify \"%"TS"\": is part of a spanned set",
+ ERROR("Cannot modify \"%"TS"\": is part of a split WIM",
wim->filename);
return WIMLIB_ERR_WIM_IS_READONLY;
}
WIMLIBAPI void
wimlib_free(WIMStruct *wim)
{
- DEBUG("Freeing WIMStruct");
-
if (!wim)
return;
- if (wim->in_fd.fd != -1)
- close(wim->in_fd.fd);
- if (wim->out_fd.fd != -1)
- close(wim->out_fd.fd);
+
+ DEBUG("Freeing WIMStruct (filename=\"%"TS"\", image_count=%u)",
+ wim->filename, wim->hdr.image_count);
+
+ while (!list_empty(&wim->subwims)) {
+ WIMStruct *subwim;
+
+ subwim = list_entry(wim->subwims.next, WIMStruct, subwim_node);
+ list_del(&subwim->subwim_node);
+ DEBUG("Freeing subwim.");
+ wimlib_free(subwim);
+ }
+
+ if (filedes_valid(&wim->in_fd))
+ filedes_close(&wim->in_fd);
+ if (filedes_valid(&wim->out_fd))
+ filedes_close(&wim->out_fd);
+
+ wimlib_lzx_free_context(wim->lzx_context);
free_lookup_table(wim->lookup_table);
FREE(wim->image_metadata);
}
FREE(wim);
- DEBUG("Freed WIMStruct");
}
static bool
wimlib_global_init(int init_flags)
{
static bool already_inited = false;
+ int ret;
if (already_inited)
return 0;
#endif
}
#ifdef __WIN32__
- win32_global_init();
+ ret = win32_global_init(init_flags);
+ if (ret)
+ return ret;
+#else
+ ret = 0;
#endif
already_inited = true;
- return 0;
+ return ret;
}
/* API function documented in wimlib.h */
git://wimlib.net / wimlib / blobdiff