diff options
Diffstat (limited to 'src/liblzma/common/block_header_decoder.c')
| -rw-r--r-- | src/liblzma/common/block_header_decoder.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/liblzma/common/block_header_decoder.c b/src/liblzma/common/block_header_decoder.c index 416642cd..1dd982f6 100644 --- a/src/liblzma/common/block_header_decoder.c +++ b/src/liblzma/common/block_header_decoder.c @@ -46,8 +46,16 @@ lzma_block_header_decode(lzma_block *block, block->filters[i].options = NULL; } - // Always zero for now. - block->version = 0; + // Versions 0 and 1 are supported. If a newer version was specified, + // we need to downgrade it. + if (block->version > 1) + block->version = 1; + + // This isn't a Block Header option, but since the decompressor will + // read it if version >= 1, it's better to initialize it here than + // to expect the caller to do it since in almost all cases this + // should be false. + block->ignore_check = false; // Validate Block Header Size and Check type. The caller must have // already set these, so it is a programming error if this test fails. |