X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/75bce3ad347a1ea870058391e624cccc159737d3..e69d5138dc8f95e294ae6d03beb4f321406f4e34:/src/zlib/uncompr.c

diff --git a/src/zlib/uncompr.c b/src/zlib/uncompr.c
index 670eaf6415..b59e3d0def 100644
--- a/src/zlib/uncompr.c
+++ b/src/zlib/uncompr.c
@@ -1,11 +1,12 @@
 /* uncompr.c -- decompress a memory buffer
- * Copyright (C) 1995-1998 Jean-loup Gailly.
+ * Copyright (C) 1995-2003 Jean-loup Gailly.
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
 /* @(#) $Id$ */
 
-#include "../zlib/zlib.h"
+#define ZLIB_INTERNAL
+#include "zlib.h"
 
 /* ===========================================================================
      Decompresses the source buffer into the destination buffer.  sourceLen is
@@ -22,15 +23,11 @@
    enough memory, Z_BUF_ERROR if there was not enough room in the output
    buffer, or Z_DATA_ERROR if the input data was corrupted.
 */
-#if defined(__VISAGECPP__) /* Visualage can't handle this antiquated interface */
-int ZEXPORT uncompress (Bytef* dest, uLongf* destLen, const Bytef* source, uLong sourceLen)
-#else
 int ZEXPORT uncompress (dest, destLen, source, sourceLen)
     Bytef *dest;
     uLongf *destLen;
     const Bytef *source;
     uLong sourceLen;
-#endif
 {
     z_stream stream;
     int err;
@@ -53,7 +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;