verify_swm_set(): Check chunk size

diff --git a/src/join.c b/src/join.c
index cdfd3889d27626f70984774c643daaaf25a86c98..1904935311f96efae5f98a6ce85eb1bb034d1b2e 100644 (file)
--- a/src/join.c
+++ b/src/join.c
@@ -56,6 +56,7 @@ verify_swm_set(WIMStruct *wim, WIMStruct **additional_swms,
 {
        unsigned total_parts = wim->hdr.total_parts;
        int ctype;
+       u32 chunk_size;
        const u8 *guid;
 
        if (total_parts != num_additional_swms + 1) {
@@ -83,9 +84,10 @@ verify_swm_set(WIMStruct *wim, WIMStruct **additional_swms,
                }
        }
 
-       /* keep track of ctype and guid just to make sure they are the same for
-        * all the WIMs. */
+       /* 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;
 
        {
@@ -104,6 +106,12 @@ verify_swm_set(WIMStruct *wim, WIMStruct **additional_swms,
                                      "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 (memcmp(guid, swm->hdr.guid, WIM_GID_LEN) != 0) {
                                ERROR("The split WIMs do not all have the same "
                                      "GUID");