1*3b35e7eeSXin LI // SPDX-License-Identifier: 0BSD 2*3b35e7eeSXin LI 381ad8388SMartin Matuska /////////////////////////////////////////////////////////////////////////////// 481ad8388SMartin Matuska // 581ad8388SMartin Matuska /// \file stream_flags_common.h 681ad8388SMartin Matuska /// \brief Common stuff for Stream flags coders 781ad8388SMartin Matuska // 881ad8388SMartin Matuska // Author: Lasse Collin 981ad8388SMartin Matuska // 1081ad8388SMartin Matuska /////////////////////////////////////////////////////////////////////////////// 1181ad8388SMartin Matuska 1281ad8388SMartin Matuska #ifndef LZMA_STREAM_FLAGS_COMMON_H 1381ad8388SMartin Matuska #define LZMA_STREAM_FLAGS_COMMON_H 1481ad8388SMartin Matuska 1581ad8388SMartin Matuska #include "common.h" 1681ad8388SMartin Matuska 1781ad8388SMartin Matuska /// Size of the Stream Flags field 1881ad8388SMartin Matuska #define LZMA_STREAM_FLAGS_SIZE 2 1981ad8388SMartin Matuska 20ca6a6373SXin LI lzma_attr_visibility_hidden 2181ad8388SMartin Matuska extern const uint8_t lzma_header_magic[6]; 22ca6a6373SXin LI 23ca6a6373SXin LI lzma_attr_visibility_hidden 2481ad8388SMartin Matuska extern const uint8_t lzma_footer_magic[2]; 2581ad8388SMartin Matuska 2681ad8388SMartin Matuska 2781ad8388SMartin Matuska static inline bool 2881ad8388SMartin Matuska is_backward_size_valid(const lzma_stream_flags *options) 2981ad8388SMartin Matuska { 3081ad8388SMartin Matuska return options->backward_size >= LZMA_BACKWARD_SIZE_MIN 3181ad8388SMartin Matuska && options->backward_size <= LZMA_BACKWARD_SIZE_MAX 3281ad8388SMartin Matuska && (options->backward_size & 3) == 0; 3381ad8388SMartin Matuska } 3481ad8388SMartin Matuska 3581ad8388SMartin Matuska #endif 36