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[wxWidgets.git] / src / zlib / uncompr.c

diff --git a/src/zlib/uncompr.c b/src/zlib/uncompr.c
index d1033213781eecf2dbd78f088b03845c5c13c085..b59e3d0defb24b22c83167609f2cc5eb7620b96b 100644 (file)
--- a/src/zlib/uncompr.c
+++ b/src/zlib/uncompr.c
@@ -1,10 +1,11 @@
 /* uncompr.c -- decompress a memory buffer
- * Copyright (C) 1995-1998 Jean-loup Gailly.
- * For conditions of distribution and use, see copyright notice in zlib.h 
+ * Copyright (C) 1995-2003 Jean-loup Gailly.
+ * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
 /* @(#) $Id$ */
 
+#define ZLIB_INTERNAL
 #include "zlib.h"
 
 /* ===========================================================================
@@ -49,7 +50,9 @@ int ZEXPORT uncompress (dest, destLen, source, sourceLen)
     err = inflate(&stream, Z_FINISH);
     if (err != Z_STREAM_END) {
         inflateEnd(&stream);
-        return err == Z_OK ? Z_BUF_ERROR : err;
+        if (err == Z_NEED_DICT || (err == Z_BUF_ERROR && stream.avail_in == 0))
+            return Z_DATA_ERROR;
+        return err;
     }
     *destLen = stream.total_out;