diff options
Diffstat (limited to '')
| -rw-r--r-- | src/liblzma/common/stream_encoder_mt.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/src/liblzma/common/stream_encoder_mt.c b/src/liblzma/common/stream_encoder_mt.c index 5990742b..703b794e 100644 --- a/src/liblzma/common/stream_encoder_mt.c +++ b/src/liblzma/common/stream_encoder_mt.c @@ -979,20 +979,18 @@ get_options(const lzma_mt *options, lzma_options_easy *opt_easy, *filters = opt_easy->filters; } - // Block size - if (options->block_size > 0) { - if (options->block_size > BLOCK_SIZE_MAX) - return LZMA_OPTIONS_ERROR; - + // If the Block size is not set, determine it from the filter chain. + if (options->block_size > 0) *block_size = options->block_size; - } else { - // Determine the Block size from the filter chain. + else *block_size = lzma_mt_block_size(*filters); - if (*block_size == 0) - return LZMA_OPTIONS_ERROR; - assert(*block_size <= BLOCK_SIZE_MAX); - } + // UINT64_MAX > BLOCK_SIZE_MAX, so the second condition + // should be optimized out by any reasonable compiler. + // The second condition should be there in the unlikely event that + // the macros change and UINT64_MAX < BLOCK_SIZE_MAX. + if (*block_size > BLOCK_SIZE_MAX || *block_size == UINT64_MAX) + return LZMA_OPTIONS_ERROR; // Calculate the maximum amount output that a single output buffer // may need to hold. This is the same as the maximum total size of |