55                         SquashfsFilesystem::SquashfsHeader* header) {  in ReadSquashfsHeader()  argument
60   memcpy(&header->magic, blob.data(), 4);  in ReadSquashfsHeader()
61   memcpy(&header->block_size, blob.data() + 12, 4);  in ReadSquashfsHeader()
62   memcpy(&header->compression_type, blob.data() + 20, 2);  in ReadSquashfsHeader()
63   memcpy(&header->major_version, blob.data() + 28, 2);  in ReadSquashfsHeader()
67 bool CheckHeader(const SquashfsFilesystem::SquashfsHeader& header) {  in CheckHeader()  argument
68   return header.magic == 0x73717368 && header.major_version == 4;  in CheckHeader()
97                               const SquashfsHeader& header,  in Init()  argument
101   bool is_zlib = header.compression_type == kSquashfsZlibCompression;  in Init()
130       TEST_AND_RETURN_FALSE(new_blk_size <= header.block_size);  in Init()
269   SquashfsHeader header;  in CreateFromFile()  local
275   if (!ReadSquashfsHeader(blob, &header) || !CheckHeader(header)) {  in CreateFromFile()
289           filemap, sqfs_path, sqfs_file->GetSize(), header, extract_deflates)) {  in CreateFromFile()
298     const string& filemap, size_t size, const SquashfsHeader& header) {  in CreateFromFileMap()  argument
299   if (!CheckHeader(header)) {  in CreateFromFileMap()
305   if (!sqfs->Init(filemap, "", size, header, false)) {  in CreateFromFileMap()
327   SquashfsHeader header;  in IsSquashfsImage()  local
328   return ReadSquashfsHeader(blob, &header) && CheckHeader(header);  in IsSquashfsImage()