* ext/digest/digest.c (rb_digest_base_s_new): Zero the newly

knu · knu · commit b57df3aaa7a1 · 2003-10-15T13:53:32.000Z
allocated buffer to avoid letting ALGO_Equal() fail.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_6@4780 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
diff --git a/ChangeLog b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Oct 15 22:51:17 2003  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/digest/digest.c (rb_digest_base_s_new): Zero the newly
+	  allocated buffer to avoid letting ALGO_Equal() fail.
+
 Sun Aug  3 15:56:27 2003  NAKAMURA, Hiroshi <nahi@ruby-lang.org>
 
 	* math.c (math_log): nan takes a dummy argument on Cygwin 1.5.0.
diff --git a/ext/digest/digest.c b/ext/digest/digest.c
@@ -72,7 +72,8 @@ rb_digest_base_s_new(argc, argv, class)
 
     algo = get_digest_base_metadata(class);
 
-    pctx = xmalloc(algo->ctx_size);
+    /* XXX: An uninitialized buffer leads ALGO_Equal() to fail */
+    pctx = xcalloc(algo->ctx_size, 1);
     algo->init_func(pctx);
 
     obj = Data_Wrap_Struct(class, 0, free, pctx);
