X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Fwim.c;h=bf6ebbf0cbe494ca9ba1077fc9628c45fd83f649;hb=2254a0fc3f1d7af1151ee83f3458f44339b5028b;hp=5ebf94ca4e3518fa6bd25d5668e24e49d4ccb46a;hpb=761a138b6419c30f6213af46186f678600750404;p=wimlib

diff --git a/src/wim.c b/src/wim.c
index 5ebf94ca..bf6ebbf0 100644
--- a/src/wim.c
+++ b/src/wim.c
@@ -70,6 +70,7 @@ new_wim_struct(void)
 	if (wim) {
 		wim->in_fd.fd = -1;
 		wim->out_fd.fd = -1;
+		INIT_LIST_HEAD(&wim->subwims);
 	}
 	return wim;
 }
@@ -167,9 +168,11 @@ select_wim_image(WIMStruct *wim, int image)
 		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
@@ -278,12 +281,6 @@ 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);
 }
 
@@ -336,8 +333,10 @@ wimlib_set_wim_info(WIMStruct *wim, const struct wimlib_wim_info *info, int whic
 	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) {
@@ -421,7 +420,7 @@ begin_read(WIMStruct *wim, const void *wim_filename_or_fd,
 		 * 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) {
@@ -449,11 +448,9 @@ begin_read(WIMStruct *wim, const void *wim_filename_or_fd,
 			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);
 
@@ -683,6 +680,9 @@ int
 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];
@@ -715,7 +715,7 @@ can_modify_wim(WIMStruct *wim)
 		}
 	}
 	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;
 	}
@@ -755,15 +755,28 @@ can_delete_from_wim(WIMStruct *wim)
 WIMLIBAPI void
 wimlib_free(WIMStruct *wim)
 {
-	DEBUG("Freeing WIMStruct");
-
 	if (!wim)
 		return;
+
+	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->filename);
@@ -774,7 +787,6 @@ wimlib_free(WIMStruct *wim)
 		FREE(wim->image_metadata);
 	}
 	FREE(wim);
-	DEBUG("Freed WIMStruct");
 }
 
 static bool