Merged revisions 231853 via svnmerge from

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

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  r231853 | dvossel | 2009-12-01 15:14:31 -0600 (Tue, 01 Dec 2009) | 3 lines
  
  WaitExten m option with no parameters generates frame with zero datalen but non-null data ptr
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@231867 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/pbx.c

@@ -9055,7 +9055,7 @@ static int pbx_builtin_waitexten(struct ast_channel *chan, const char *data)
 	if (ast_test_flag(&flags, WAITEXTEN_MOH) && !opts[0] ) {
 		ast_log(LOG_WARNING, "The 'm' option has been specified for WaitExten without a class.\n"); 
 	} else if (ast_test_flag(&flags, WAITEXTEN_MOH)) {
-		ast_indicate_data(chan, AST_CONTROL_HOLD, opts[0], strlen(opts[0]));
+		ast_indicate_data(chan, AST_CONTROL_HOLD, S_OR(opts[0], NULL), strlen(opts[0]));
 	} else if (ast_test_flag(&flags, WAITEXTEN_DIALTONE)) {
 		struct ast_tone_zone_sound *ts = ast_get_indication_tone(chan->zone, "dial");
 		if (ts) {