Merged revisions 83773 via svnmerge from

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

........
r83773 | tilghman | 2007-09-25 09:13:25 -0500 (Tue, 25 Sep 2007) | 2 lines

jmls pointed out that unsetting the group and setting the group to the blank string aren't quite the same.

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@83774 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/app.c

@@ -876,7 +876,9 @@ int ast_app_group_set_channel(struct ast_channel *chan, const char *data)
 	}
 	AST_RWLIST_TRAVERSE_SAFE_END
 
-	if ((gi = calloc(1, len))) {
+	if (ast_strlen_zero(group)) {
+		/* Enable unsetting the group */
+	} else if ((gi = calloc(1, len))) {
 		gi->chan = chan;
 		gi->group = (char *) gi + sizeof(*gi);
 		strcpy(gi->group, group);