Libtorrent

* added EnumNet java API to help query the device network state/status/info
* compiling with -mstackrealign for android x86, some devices have stack
alignment issues
* lt:fix tie-break in duplicate peer connection disconnect logic
* lt:fix issue with SSL tracker connections left in CLOSE_WAIT state
* lt:defer truncating existing files until the first time we write to them
* lt:fix issue when receiving a torrent with 0-sized padfiles as magnet link
* lt:fix issue resuming 1.0.x downloads with a file priority 0
* lt:fix torrent_status::next_announce
* lt:turn piece picker option flags into a proper type
* lt:fix pad-file scalability issue
* lt:made coalesce_reads/coalesce_writes settings take effect on linux
and windows
* lt:source code cleanup, performance and stability

* using version in native library names
* updated to boost 1.66.0
* lt:use unique peer_ids per connection
* lt:fix tracker connection bind issue for IPv6 trackers
* lt:fix error handling of merkle torrents
* lt:fix error handling of unsupported hard-links
* lt:raise auto piece size selection limit to 16 MB in create_torrent()
* lt:mark up performance counter operations as noexcept
* lt:fix noexcept marking on entry, and make move assignment
* lt:using make_address instead of deprecated from_string when boost>=1.66
* lt:block_size is a constant, no need in passing it around as a variable
* lt:remove_peer() and attach_peer() error handling
* lt:support forced shutdown/destruction of torrent objects
* lt:improve error handling during session shutdown
* lt:handle serious errors in on_accept_connection handler
* lt:deprecate save_encryption_settings
* lt:handle errors in peer_connection
* lt:support asio handler allocators in deferred_handler
* lt:don't heap-allocate handlers for incoming UDP packets
* lt:make the chunk header parser properly fail at end of buffer, and not
require zero terminated strings
* lt:add getters for peer_class_filter and peer_class_type_filter
* lt:attempt to fix disconnections when torrents enter upload mode due to
failures
* lt:fix local network address mappings
* lt:deprecate status_code from tracker_error_alert
* lt:make torrent_handler::set_priority() to use peer_classes
* lt:improve type safety of plugin interface
* lt:introduce a proper type for pex flags to improve type-safety
* lt:fix reopening of listen sockets when disabling force-proxy
* lt:fix build against boost-1.66, specifically the boost.asio changes
* lt:fix asio debugging
* lt:fix rate limit utp feature
* lt:fix i2p support
* lt:source code cleanup, performance and stability

* added java API to download magnet uri
* fixed issue with prioritize_files swig wrapper
* API change in TorrentHandlesaveResumeData, now it pass empty flags
by default
* using android NDK r16b
* updated to OpenSSL 1.1.0g
* lt:fix loading resume data when in seed mode
* lt:fix incorrect use of make_tick_handler
* lt:fix issue with initializing settings on session construction
* lt:implemented support for magnet URI extension, select specific file
indices for download, BEP53
* lt:fix issue with receiving interested before metadata
* lt:generate random keys for use in tracker announces, unique per torrent
and the listen interface
* lt:fix IPv6 tracker announce issue
* lt:don't early move shared_ptr plugin in torrent::add_extension_fun
* lt:fix force-proxy regression (udp sockets would not be opened)
* lt:restore path sanitization behavior of ':'
* lt:make tracker announces happen even if there are no open listen sockets
* lt:fix issue where new listen sockets would not be opened when leaving
force_proxy mode
* lt:make sure the cork destructor doesn't leak exceptions
* lt:stop posting alerts when the session is shutting down, solves some
issues around destruction order
* lt:add API to query whether alerts have been dropped or not
* lt:keep updating aux::time_now() while there are announces, fixes an
infinite loop during shutdown
* lt:source code cleanup, performance and stability

* fixed invalid handling of download_priority_t and swig wrapper

* enable full SSL support in libtorrent
* compiling with -fvisibility=hidden and -Os
* using android NDK r16 beta2
* updated to boost 1.65.1
* internal session in SessionManager blocks privileged ports and
only allows 80 and 443 for possible web seeds connections
* lt:enable/disable the internal ip notifier with new setting
* lt:fix issue of null m_part_file in default_storage readv/writev
* lt:added reopen_network_sockets method to allow manual reopen of
listen/outgoing sockets
* lt:using NETLINK_NO_ENOBUFS to ignore ENOBUFS in netlink based ip notifier
* lt:add limit of max 50 upnp mappings and recover free global mappings
* lt:creating part file if needed only in set_file_priorities
* lt:fix full allocation failure on APFS
* lt:make parse_magnet_uri return the add_torrent_params instead of
taking an in-out parameter
* lt:pick standard std::aligned_union if using clang
* lt:make disk_buffer_holder know the size of the buffer it holds, to fix
buffer overrun in chained_buffer
* lt:fix infinite loop when parsing certain invalid magnet links
* lt:don't delete pieces from cache with refcount > 0
* lt:don't try to connect to a global address with a local source address
* lt:fix parsing of torrents with certain invalid filenames
* lt:fix leak of peer_class objects (when setting per-torrent rate limits)
* lt:more strict filename sanitation
* lt:improve handling of case where a torrent file has no files in it
* lt:clean up and fix edge cases in update_path_index
* lt:fix issue with the name in single file torrents being sanitized away
* lt:make the chunk header parser a bit more strict and accurate
* lt:fix integer overflow in torrent_info
* lt:fix windows file preallocation issue
* lt:fix integer overflow in whole_pieces_threshold logic
* lt:DHT nodes should only handle requests on their socket
* lt:bump priority of storage_moved_alert and storage_moved_failed_alert
* lt:deprecate lock_files settings
* lt:fix uTP path MTU discovery issue on windows, DF bit was not set
correctly
* lt:select which DHT port to report based on the connection's local
endpoint
* lt:avoid port mapping of local IPv6 addresses
* lt:include endpoint in tracker alerts
* lt:hold an owning reference to storage objects in try_flush_write_blocks
* lt:read_piece: handle failure to allocate piece buffer
* lt:treat unique local IPv6 addresses as local
* lt:source code cleanup, performance and stability

* updated to boost 1.65
* storing external address and listen endpoints as strings for better
performance
* improved creation of peers part of magnet links
* lt:fixed netlink based network interface enumeration
* lt:remove support for using a pool allocator for disk buffers
* lt:fix IPv6 tracker support by performing the second announce in
more cases
* lt:fix issue in UTF-8 encoding validation
* lt:fix infinite loop when parsing torrents whose filenames have zeroes
* lt:fix invalid read in parse_int() in bdecode_node()
* lt:don't create web seed connections if the torrent is upload only
* lt:fix issue with very long tracker and web seed URLs
* lt:fix issue where paths were not correctly coalesced when adding files
to file_storage (used more memory than necessary)
* lt:fix issue of force-recheck or seeding from read-only media, torrents
with empty files in them
* lt:fix force-recheck issue (new files would not be picked up)
* lt:source code cleanup, performance and stability