67 static inline int32_t read_int32(borrowed_fd fd) {  in read_int32()  argument
69     return ReadFdExactly(fd, &result, sizeof(result)) ? result : -1;  in read_int32()
72 static inline int32_t skip_int(borrowed_fd fd) {  in skip_int()  argument
73     return adb_lseek(fd, 4, SEEK_CUR);  in skip_int()
76 static inline void append_int(borrowed_fd fd, std::vector<char>* bytes) {  in append_int()  argument
77     int32_t le_val = read_int32(fd);  in append_int()
83 static inline bool append_bytes_with_size(borrowed_fd fd, std::vector<char>* bytes,  in append_bytes_with_size()  argument
85     int32_t le_size = read_int32(fd);  in append_bytes_with_size()
100     ReadFdExactly(fd, bytes->data() + old_size + sizeof(le_size), size);  in append_bytes_with_size()
104 static inline int32_t skip_bytes_with_size(borrowed_fd fd) {  in skip_bytes_with_size()  argument
105     int32_t le_size = read_int32(fd);  in skip_bytes_with_size()
110     return (int32_t)adb_lseek(fd, size, SEEK_CUR);  in skip_bytes_with_size()
113 std::pair<std::vector<char>, int32_t> read_id_sig_headers(borrowed_fd fd) {  in read_id_sig_headers()  argument
115     append_int(fd, &signature);  // version  in read_id_sig_headers()
118     if (!append_bytes_with_size(fd, &signature, &max_size) ||  in read_id_sig_headers()
119         !append_bytes_with_size(fd, &signature, &max_size)) {  in read_id_sig_headers()
122     auto le_tree_size = read_int32(fd);  in read_id_sig_headers()
127 std::pair<off64_t, ssize_t> skip_id_sig_headers(borrowed_fd fd) {  in skip_id_sig_headers()  argument
128     skip_int(fd);                            // version  in skip_id_sig_headers()
129     skip_bytes_with_size(fd);                // hashingInfo  in skip_id_sig_headers()
130     auto offset = skip_bytes_with_size(fd);  // signingInfo  in skip_id_sig_headers()
131     auto le_tree_size = read_int32(fd);  in skip_id_sig_headers()
137 static T valueAt(borrowed_fd fd, off64_t offset) {  in valueAt()  argument
140     if (adb_pread(fd, &t, sizeof(T), offset) != sizeof(T)) {  in valueAt()
165 static off64_t CentralDirOffset(borrowed_fd fd, Size fileSize) {  in CentralDirOffset()  argument
178         sigBuf = valueAt<int32_t>(fd, maxEocdOffset - commentLen);  in CentralDirOffset()
181                     fd, maxEocdOffset - commentLen + kZipEocdCommentLengthFieldOffset);  in CentralDirOffset()
194             valueAt<int32_t>(fd, eocdOffset + kZipEocdCentralDirSizeFieldOffset));  in CentralDirOffset()
200 static off64_t SignerBlockOffset(borrowed_fd fd, Size fileSize) {  in SignerBlockOffset()  argument
206     off64_t cdOffset = CentralDirOffset(fd, fileSize);  in SignerBlockOffset()
212         valueAt<int64_t>(fd, cdOffset - 2 * sizeof(int64_t)) != APK_SIG_BLOCK_MAGIC_LO ||  in SignerBlockOffset()
213         valueAt<int64_t>(fd, cdOffset - sizeof(int64_t)) != APK_SIG_BLOCK_MAGIC_HI) {  in SignerBlockOffset()
216     int32_t signerSizeInFooter = valueAt<int32_t>(fd, cdOffset - kApkSigBlockFooterSize);  in SignerBlockOffset()
221     int32_t signerSizeInHeader = valueAt<int32_t>(fd, signerBlockOffset);  in SignerBlockOffset()
257 [[maybe_unused]] static ZipArchiveHandle openZipArchiveFd(borrowed_fd fd) {  in openZipArchiveFd()  argument
269     auto handle = adb_get_os_handle(fd);  in openZipArchiveFd()
284     int osfd = fd.get();  in openZipArchiveFd()
299         borrowed_fd fd, Size fileSize) {  in openZipArchive()  argument
302         return {openZipArchiveFd(fd), nullptr};  in openZipArchive()
306             android::base::MappedFile::FromOsHandle(adb_get_os_handle(fd), 0, fileSize, PROT_READ);  in openZipArchive()
319 static std::vector<int32_t> InstallationPriorityBlocks(borrowed_fd fd, Size fileSize) {  in InstallationPriorityBlocks()  argument
322     auto [zip, _] = openZipArchive(fd, fileSize);  in InstallationPriorityBlocks()
373 std::vector<int32_t> PriorityBlocksForFile(const std::string& filepath, borrowed_fd fd,  in PriorityBlocksForFile()  argument
378     off64_t signerOffset = SignerBlockOffset(fd, fileSize);  in PriorityBlocksForFile()
384     std::vector<int32_t> installationPriorityBlocks = InstallationPriorityBlocks(fd, fileSize);  in PriorityBlocksForFile()