--disable-verify-compression by default

[wimlib] / src / lzx-compress.c

diff --git a/src/lzx-compress.c b/src/lzx-compress.c
index a811d51c9ec9ffd43a5064d853b89aca888b1cc8..b23c2df088642ce2d9001ebeba130d8fbba504d8 100644 (file)
--- a/src/lzx-compress.c
+++ b/src/lzx-compress.c
@@ -567,7 +567,7 @@ lzx_write_compressed_tree(struct output_bitstream *out,
 
 /* Builds the canonical Huffman code for the main tree, the length tree, and the
  * aligned offset tree. */
-static void 
+static void
 lzx_make_huffman_codes(const struct lzx_freq_tables *freq_tabs,
                       struct lzx_codes *codes)
 {
@@ -669,6 +669,7 @@ wimlib_lzx_compress(const void *__uncompressed_data, unsigned uncompressed_len,
        /* The input data must be preprocessed. To avoid changing the original
         * input, copy it to a temporary buffer. */
        memcpy(uncompressed_data, __uncompressed_data, uncompressed_len);
+       memset(uncompressed_data + uncompressed_len, 0, 8);
 
        /* Before doing any actual compression, do the call instruction (0xe8
         * byte) translation on the uncompressed data. */
@@ -746,21 +747,23 @@ wimlib_lzx_compress(const void *__uncompressed_data, unsigned uncompressed_len,
 
 #ifdef ENABLE_VERIFY_COMPRESSION
        /* Verify that we really get the same thing back when decompressing. */
-       u8 buf[uncompressed_len];
-       ret = wimlib_lzx_decompress(compressed_data, compressed_len,
-                                   buf, uncompressed_len);
-       if (ret != 0) {
-               ERROR("lzx_compress(): Failed to decompress data we compressed");
-               abort();
-       }
-
-       for (i = 0; i < uncompressed_len; i++) {
-               if (buf[i] != *((u8*)__uncompressed_data + i)) {
-                       ERROR("lzx_compress(): Data we compressed didn't "
-                             "decompress to the original data (difference at "
-                             "byte %u of %u)", i + 1, uncompressed_len);
+       {
+               u8 buf[uncompressed_len];
+               ret = wimlib_lzx_decompress(compressed_data, compressed_len,
+                                           buf, uncompressed_len);
+               if (ret != 0) {
+                       ERROR("lzx_compress(): Failed to decompress data we compressed");
                        abort();
                }
+
+               for (i = 0; i < uncompressed_len; i++) {
+                       if (buf[i] != *((u8*)__uncompressed_data + i)) {
+                               ERROR("lzx_compress(): Data we compressed didn't "
+                                     "decompress to the original data (difference at "
+                                     "byte %u of %u)", i + 1, uncompressed_len);
+                               abort();
+                       }
+               }
        }
 #endif
        return compressed_len;