X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=lib%2Fzlib%2Finfcodes.c;h=9abe5412b9c8b1ae61596ee3743ac9aaa7f3232d;hb=e7b6c157b80152bf9fb9266e6bdd93f9fb0db776;hp=d4e5ee9a55439aa1c506572666ebbbbb07991d1c;hpb=62f89b2886bbe9df82d9b2fdabfe707509d9e0fc;p=silc.git

diff --git a/lib/zlib/infcodes.c b/lib/zlib/infcodes.c
index d4e5ee9a..9abe5412 100644
--- a/lib/zlib/infcodes.c
+++ b/lib/zlib/infcodes.c
@@ -1,5 +1,5 @@
 /* infcodes.c -- process literals and length/distance pairs
- * Copyright (C) 1995-1998 Mark Adler
+ * Copyright (C) 1995-2002 Mark Adler
  * For conditions of distribution and use, see copyright notice in zlib.h 
  */
 
@@ -196,15 +196,9 @@ int r;
       Tracevv((stderr, "inflate:         distance %u\n", c->sub.copy.dist));
       c->mode = COPY;
     case COPY:          /* o: copying bytes in window, waiting for space */
-#ifndef __TURBOC__ /* Turbo C bug for following expression */
-      f = (uInt)(q - s->window) < c->sub.copy.dist ?
-          s->end - (c->sub.copy.dist - (q - s->window)) :
-          q - c->sub.copy.dist;
-#else
       f = q - c->sub.copy.dist;
-      if ((uInt)(q - s->window) < c->sub.copy.dist)
-        f = s->end - (c->sub.copy.dist - (uInt)(q - s->window));
-#endif
+      while (f < s->window)             /* modulo window size-"while" instead */
+        f += s->end - s->window;        /* of "if" handles invalid distances */
       while (c->len)
       {
         NEEDOUT