abbrgen: Bugfix for negative inputs.....

1 files changed, 3 insertions, 2 deletions

diff --git a/modules/abbrgen/abbrgen.js b/modules/abbrgen/abbrgen.js
index 64a29b1..ba6248b 100644
--- a/modules/abbrgen/abbrgen.js
+++ b/modules/abbrgen/abbrgen.js
@@ -13,6 +13,7 @@ function get_abbreviations(abbr,num,cb){
 			console.log(err.toString());
 			console.log(err.stack);
 			cb([]);
+			return;
 		}
 		cb(stdout.split("\n"));
 	});
@@ -38,11 +39,11 @@ module.exports=function(app,io,_moddir){
 			res.send("ERROR: Number of abbreviations too large.");
 			return;
 		}
-		if(!abbr.match(/^[a-z]+$/i)||isNaN(+num)){
+		if(!abbr.match(/^[a-z]+$/i)||isNaN(+num)||num<0||num%1!=0){
 			res.send("ERROR: Invalid input values.");
 			return;
 		}
-		get_abbreviations(abbr,num,function(answers){
+		get_abbreviations(abbr,num|0,function(answers){
 			res.send(answers.join("\n"));
 		});
 	});