Fix nested cc4group.openAsChild

1 files changed, 8 insertions, 4 deletions

diff --git a/src/cc4group.c b/src/cc4group.c
index ff42e51..a92b2b9 100644
--- a/src/cc4group.c
+++ b/src/cc4group.c
@@ -683,6 +683,12 @@ static bool cc4group_uncompressUntilPosition(CC4Group* const this, size_t const
 
 		rootGroup->readState.position = position;
 	}
+
+	// update for child groups
+	if(this != rootGroup)
+	{
+		this->readState.position = position;
+	}
 	return true;
 }
 
@@ -3276,15 +3282,13 @@ static bool cc4group_openAsChildOn(CC4Group* const this, const char* const path,
 
 	GroupEntryList* children = cc4group_getChildren(this, entry); // this also loads the header of entry
 	child->root = *entry;
+	child->readState.position = this->readState.position;
 	child->root.parent = NULL;
 	child->root.core.FileName[0] = '\0';
 	child->root.children = children;
 	child->uncompressedData = this->uncompressedData;
 
-	if(child->root.children == NULL)
-	{
-		return false;
-	}
+	assert(child->root.children);
 
 	child->parent = this;
 	child->name = strdup(entry->core.FileName);