added some checks for request size.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3665 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,7 @@
+Thu Apr 10 18:42:13 2003  Tadayoshi Funaba  <tadf@dotrb.org>
+
+	* array.c (rb_ary_times): added some checks for request size.
+
 Thu Apr 10 03:22:38 2003  Yukihiro Matsumoto  <matz@ruby-lang.org>
 
 	* variable.c (rb_mod_name): always return empty string for

array.c

@@ -1529,9 +1529,13 @@ rb_ary_times(ary, times)
     }
 
     len = NUM2LONG(times);
+    if (len == 0) return rb_ary_new2(0);
     if (len < 0) {
 	rb_raise(rb_eArgError, "negative argument");
     }
+    if (LONG_MAX/len < RARRAY(ary)->len) {
+	rb_raise(rb_eArgError, "argument too big");
+    }
     len *= RARRAY(ary)->len;
 
     ary2 = ary_new(rb_obj_class(ary), len);