Handle spaces following NNTP commands without error (e.g. "LIST ").

exec/nntpservice.js

@@ -244,7 +244,7 @@ while(client.socket.is_connected && !quit) {
 			break;
 
 		case "LIST":
-			if(cmd[1]==undefined) {
+			if(cmd[1]==undefined || cmd[1].length==0) {
  				writeln("215 list of newsgroups follows");
 				if(include_mail && user.security.level == 99) {
 					msgbase=new MsgBase("mail");
@@ -313,13 +313,13 @@ while(client.socket.is_connected && !quit) {
 			break;
 
 		case "GROUP":
-			if(cmd[1]==undefined) {
+			if(cmd[1]==undefined || cmd[1].length==0) {
 				writeln("411 no group specified");
 				break;
 			}
 		case "LISTGROUP":
 			found=false;
-			if(cmd[1]==undefined) {
+			if(cmd[1]==undefined || cmd[1].length==0) {
 				if(!selected) {
 					writeln("412 no newsgroup selected");
 					break;
@@ -380,7 +380,7 @@ while(client.socket.is_connected && !quit) {
 				break;
 			}
 			var first, last;
-			if(cmd[1]==undefined)
+			if(cmd[1]==undefined || cmd[1].length==0)
 				first=last=current_article;
 			else if(cmd[1].indexOf('-')>=0)	{ /* range */
 				range=cmd[1].split('-');
@@ -497,7 +497,7 @@ while(client.socket.is_connected && !quit) {
 				bogus_cmd_counter++;
 				break;
 			}
-			if(cmd[1]==undefined) {
+			if(cmd[1]==undefined || cmd[1].length==0) {
 				writeln("420 no current article has been selected");
 				bogus_cmd_counter++;
 				break;