1 files changed, 7 insertions, 1 deletions
diff --git a/userspace/ls.c b/userspace/ls.c
index 50c733b..5b5034b 100644
--- a/userspace/ls.c
+++ b/userspace/ls.c
@@ -15,7 +15,13 @@ int main(int argc, char **argv)
 	    return 0;
 	}
 
-	int  ls=readdir(atoi(argv[1]),dirs,25);
+	char *dir=argv[1];
+	int  ls=readdir(dir,dirs,25);
+	if(ls==-1)
+	{
+	    printf("%s: file or directory '%s' not found.\n",argv[0],dir);
+	    return 0;
+	}
     
 
 	int i;