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authorLasse Collin <lasse.collin@tukaani.org>2008-06-18 18:02:10 +0300
committerLasse Collin <lasse.collin@tukaani.org>2008-06-18 18:02:10 +0300
commit7d17818cec8597f847b0a2537fde991bbc3d9e96 (patch)
tree9c41502e3eb96f103fe98e13456b382fbba7a292 /src/liblzma/common/easy_single.c
parentUpdate the file format specification draft. The new one is (diff)
downloadxz-7d17818cec8597f847b0a2537fde991bbc3d9e96.tar.xz
Update the code to mostly match the new simpler file format
specification. Simplify things by removing most of the support for known uncompressed size in most places. There are some miscellaneous changes here and there too. The API of liblzma has got many changes and still some more will be done soon. While most of the code has been updated, some things are not fixed (the command line tool will choke with invalid filter chain, if nothing else). Subblock filter is somewhat broken for now. It will be updated once the encoded format of the Subblock filter has been decided.
Diffstat (limited to '')
-rw-r--r--src/liblzma/common/stream_flags_equal.c (renamed from src/liblzma/common/easy_single.c)27
1 files changed, 13 insertions, 14 deletions
diff --git a/src/liblzma/common/easy_single.c b/src/liblzma/common/stream_flags_equal.c
index e2fa4e13..db22567f 100644
--- a/src/liblzma/common/easy_single.c
+++ b/src/liblzma/common/stream_flags_equal.c
@@ -1,7 +1,7 @@
///////////////////////////////////////////////////////////////////////////////
//
-/// \file easy_single.c
-/// \brief Easy Single-Block Stream encoder initialization
+/// \file stream_flags_equal.c
+/// \brief Compare Stream Header and Stream Footer
//
// Copyright (C) 2008 Lasse Collin
//
@@ -17,21 +17,20 @@
//
///////////////////////////////////////////////////////////////////////////////
-#include "easy_common.h"
+#include "common.h"
-extern LZMA_API lzma_ret
-lzma_easy_encoder_single(lzma_stream *strm, lzma_easy_level level)
+extern LZMA_API lzma_bool
+lzma_stream_flags_equal(const lzma_stream_flags *a, lzma_stream_flags *b)
{
- lzma_options_stream opt_stream = {
- .check = LZMA_CHECK_CRC32,
- .has_crc32 = true,
- .uncompressed_size = LZMA_VLI_VALUE_UNKNOWN,
- .alignment = 0,
- };
+ if (a->check != b->check)
+ return false;
- if (lzma_easy_set_filters(opt_stream.filters, level))
- return LZMA_HEADER_ERROR;
+ // Backward Sizes are compared only if they are known in both.
+ if (a->backward_size != LZMA_VLI_VALUE_UNKNOWN
+ && b->backward_size != LZMA_VLI_VALUE_UNKNOWN
+ && a->backward_size != b->backward_size)
+ return false;
- return lzma_stream_encoder_single(strm, &opt_stream);
+ return true;
}