Remove access to free'd memory fro dude's code

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@691 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_dial.c

@@ -83,7 +83,6 @@ struct localuser {
 	int ringbackonly;
 	int musiconhold;
 	int dataquality;
-	int clearchannel;
 	int allowdisconnect;
 	struct localuser *next;
 };
@@ -299,6 +298,7 @@ static int dial_exec(struct ast_channel *chan, void *data)
 	int allowdisconnect=0;
 	int privacy=0;
 	int resetcdr=0;
+	int clearchannel=0;
 	char numsubst[AST_MAX_EXTENSION];
 	char restofit[AST_MAX_EXTENSION];
 	char *transfer = NULL;
@@ -430,8 +430,9 @@ static int dial_exec(struct ast_channel *chan, void *data)
 				tmp->allowdisconnect = 1;
                         else    tmp->allowdisconnect = 0;
 			if (strchr(transfer, 'c'))
-				tmp->clearchannel = 1;
-                        else    tmp->clearchannel = 0;
+				clearchannel = 1;
+            else    
+				clearchannel = 0;
 		}
 		strncpy(numsubst, number, sizeof(numsubst)-1);
 		/* If we're dialing by extension, look at the extension to know what to dial */
@@ -548,13 +549,13 @@ static int dial_exec(struct ast_channel *chan, void *data)
 		if (!strcmp(chan->type,"Zap"))
 		{
 			int x = 2;
-			if (tmp->dataquality || tmp->clearchannel) x = 0;
+			if (tmp->dataquality || clearchannel) x = 0;
 			ast_channel_setoption(chan,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0);
 		}			
 		if (!strcmp(peer->type,"Zap"))
 		{
 			int x = 2;
-			if (tmp->dataquality || tmp->clearchannel) x = 0;
+			if (tmp->dataquality || clearchannel) x = 0;
 			ast_channel_setoption(peer,AST_OPTION_TONE_VERIFY,&x,sizeof(char),0);
 		}			
 		hanguptree(outgoing, peer);
@@ -578,14 +579,14 @@ static int dial_exec(struct ast_channel *chan, void *data)
  			ast_log(LOG_DEBUG, "app_dial: sendurl=%s.\n", url);
  			ast_channel_sendurl( peer, url );
  		} /* /JDG */
-		if (tmp->clearchannel)
+		if (clearchannel)
 		{
 			int x = 0;
 			ast_channel_setoption(chan,AST_OPTION_AUDIO_MODE,&x,sizeof(char),0);
 			ast_channel_setoption(peer,AST_OPTION_AUDIO_MODE,&x,sizeof(char),0);
 		}
 		res = ast_bridge_call(chan, peer, allowredir, allowdisconnect | tmp->clearchannel);
-		if (tmp->clearchannel)
+		if (clearchannel)
 		{
 			int x = 1;
 			ast_channel_setoption(chan,AST_OPTION_AUDIO_MODE,&x,sizeof(char),0);