1 // SPDX-License-Identifier: 0BSD 2 3 /////////////////////////////////////////////////////////////////////////////// 4 // 5 /// \file stream_flags_common.h 6 /// \brief Common stuff for Stream flags coders 7 // 8 // Author: Lasse Collin 9 // 10 /////////////////////////////////////////////////////////////////////////////// 11 12 #ifndef LZMA_STREAM_FLAGS_COMMON_H 13 #define LZMA_STREAM_FLAGS_COMMON_H 14 15 #include "common.h" 16 17 /// Size of the Stream Flags field 18 #define LZMA_STREAM_FLAGS_SIZE 2 19 20 lzma_attr_visibility_hidden 21 extern const uint8_t lzma_header_magic[6]; 22 23 lzma_attr_visibility_hidden 24 extern const uint8_t lzma_footer_magic[2]; 25 26 27 static inline bool 28 is_backward_size_valid(const lzma_stream_flags *options) 29 { 30 return options->backward_size >= LZMA_BACKWARD_SIZE_MIN 31 && options->backward_size <= LZMA_BACKWARD_SIZE_MAX 32 && (options->backward_size & 3) == 0; 33 } 34 35 #endif 36