Merged revisions 166568 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r166568 | mmichelson | 2008-12-23 09:16:26 -0600 (Tue, 23 Dec 2008) | 12 lines

Fix a crash resulting from a datastore with inheritance but no duplicate callback

The fix for this is to simply set the newly created datastore's data pointer
to NULL if it is inherited but has no duplicate callback.

(closes issue #14113)
Reported by: francesco_r
Patches:
      14113.patch uploaded by putnopvut (license 60)
Tested by: francesco_r


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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@166569 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/channel.c

@@ -1427,7 +1427,7 @@ int ast_channel_datastore_inherit(struct ast_channel *from, struct ast_channel *
 		if (datastore->inheritance > 0) {
 			datastore2 = ast_datastore_alloc(datastore->info, datastore->uid);
 			if (datastore2) {
-				datastore2->data = datastore->info->duplicate(datastore->data);
+				datastore2->data = datastore->info->duplicate ? datastore->info->duplicate(datastore->data) : NULL;
 				datastore2->inheritance = datastore->inheritance == DATASTORE_INHERIT_FOREVER ? DATASTORE_INHERIT_FOREVER : datastore->inheritance - 1;
 				AST_LIST_INSERT_TAIL(&to->datastores, datastore2, entry);
 			}