diff options
Diffstat (limited to 'src/liblzma/common/stream_flags_common.h')
| -rw-r--r-- | src/liblzma/common/stream_flags_common.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/liblzma/common/stream_flags_common.h b/src/liblzma/common/stream_flags_common.h index 6e57857b..f422b02a 100644 --- a/src/liblzma/common/stream_flags_common.h +++ b/src/liblzma/common/stream_flags_common.h @@ -28,4 +28,13 @@ extern const uint8_t lzma_header_magic[6]; extern const uint8_t lzma_footer_magic[2]; + +static inline bool +is_backward_size_valid(const lzma_stream_flags *options) +{ + return options->backward_size >= LZMA_BACKWARD_SIZE_MIN + && options->backward_size <= LZMA_BACKWARD_SIZE_MAX + && (options->backward_size & 3) == 0; +} + #endif |