- }
-
- /* Keep track of the compression type, chunk size, and GUID to make sure
- * they are the same for all the WIMs. */
- ctype = wim->compression_type;
- chunk_size = wim->chunk_size;
- guid = wim->hdr.guid;
-
- {
- /* parts_to_swms is not allocated at function scope because it
- * should only be allocated after num_additional_swms was
- * checked to be the same as wim->hdr.total_parts. Otherwise, it
- * could be unexpectedly high and cause a stack overflow. */
- WIMStruct *parts_to_swms[num_additional_swms];
- memset(parts_to_swms, 0, sizeof(parts_to_swms));
- for (unsigned i = 0; i < num_additional_swms; i++) {
-
- WIMStruct *swm = additional_swms[i];
-
- if (swm->compression_type != ctype) {
- ERROR("The split WIMs do not all have the same "
- "compression type");
- return WIMLIB_ERR_SPLIT_INVALID;
- }
- if (swm->chunk_size != chunk_size &&
- ctype != WIMLIB_COMPRESSION_TYPE_NONE) {
- ERROR("The split WIMs do not all have the same "
- "chunk size");
- return WIMLIB_ERR_SPLIT_INVALID;
- }
- if (!guids_equal(guid, swm->hdr.guid)) {
- ERROR("The split WIMs do not all have the same "
- "GUID");
- return WIMLIB_ERR_SPLIT_INVALID;
- }
- if (swm->hdr.part_number == 1) {
- ERROR("WIMs `%"TS"' and `%"TS"' both are marked "
- "as the first WIM in the spanned set",
- wim->filename, swm->filename);
- return WIMLIB_ERR_SPLIT_INVALID;
- }
- if (swm->hdr.part_number == 0 ||
- swm->hdr.part_number > total_parts)
- {
- ERROR("WIM `%"TS"' says it is part %u in the "
- "spanned set, but the part number must "
- "be in the range [1, %u]",
- swm->filename, swm->hdr.part_number, total_parts);
- return WIMLIB_ERR_SPLIT_INVALID;
- }
- if (parts_to_swms[swm->hdr.part_number - 2])
- {
- ERROR("`%"TS"' and `%"TS"' are both marked as "
- "part %u of %u in the spanned set",
- parts_to_swms[swm->hdr.part_number - 2]->filename,
- swm->filename,
- swm->hdr.part_number,
- total_parts);
- return WIMLIB_ERR_SPLIT_INVALID;
- } else {
- parts_to_swms[swm->hdr.part_number - 2] = swm;
- }
+ if (swms[i]->hdr.total_parts != num_swms) {
+ ERROR("\"%"TS"\" says there are %u parts in the split "
+ "WIM, but %s%u part%s provided",
+ swms[i]->filename, swms[i]->hdr.total_parts,
+ num_swms < swms[i]->hdr.total_parts ? "only ":"",
+ num_swms, num_swms > 1 ? "s were" : " was");
+ return WIMLIB_ERR_SPLIT_INVALID;
+ }
+ if (swms[i]->hdr.part_number != i + 1) {
+ ERROR("The parts of the split WIM are not numbered "
+ "1..%u as expected. Did you specify duplicate "
+ "parts?", num_swms);
+ return WIMLIB_ERR_SPLIT_INVALID;