v0.30.0

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Added

• Add socket option IPV6_PKTINFO for BSDs/Linux/Android, also
  IPV6_RECVPKTINFO for DragonFlyBSD
  (#​2113)
• Add fcntl's F_PREALLOCATE constant for Apple targets.
  (#​2393)
• Improve support for extracting the TTL / Hop Limit from incoming packets
  and support for DSCP (ToS / Traffic Class).
  (#​2425)
• Add socket option IP_TOS (nix::sys::socket::sockopt::IpTos) IPV6_TCLASS
  (nix::sys::socket::sockopt::Ipv6TClass) on Android/FreeBSD
  (#​2464)
• Add SeekData and SeekHole to Whence for hurd and apple targets
  (#​2473)
• Add From trait implementation between SocketAddr and Sockaddr,
  Sockaddr6 (#​2474)
• Added wrappers for posix_spawn API
  (#​2475)
• Add the support for Emscripten.
  (#​2477)
• Add fcntl constant F_RDADVISE for Apple target
  (#​2480)
• Add fcntl constant F_RDAHEAD for Apple target
  (#​2482)
• Add F_LOG2PHYS and F_LOG2PHYS_EXT for Apple target
  (#​2483)
• MAP_SHARED_VALIDATE was added for all linux targets. & MAP_SYNC was added
  for linux with the exclusion of mips architecures, and uclibc
  (#​2499)
• Add getregs()/getregset()/setregset() for Linux/musl/aarch64
  (#​2502)
• Add FcntlArgs F_TRANSFEREXTENTS constant for Apple targets
  (#​2504)
• Add MapFlags::MAP_STACK in sys::man for netbsd
  (#​2526)
• Add support for libc::LOCAL_PEERTOKEN in getsockopt.
  (#​2529)
• Add support for syslog, openlog, closelog on all unix.
  (#​2537)
• Add the TCP_FUNCTION_BLK sockopt, on FreeBSD.
  (#​2539)
• Implements Into<OwnedFd> for PtyMaster/Fanotify/Inotify/SignalFd/TimerFd
  (#​2548)
• Add MremapFlags::MREMAP_DONTUNMAP to sys::mman::mremap for linux target.
  (#​2555)
• Added sockopt_impl! to the public API. It's now possible for users to
  define
  their own sockopts without needing to make a PR to Nix.
  (#​2556)
• Add the TCP_FUNCTION_ALIAS sockopt, on FreeBSD.
  (#​2558)
• Add sys::mman::MmapAdvise MADV_PAGEOUT, MADV_COLD, MADV_WIPEONFORK,
  MADV_KEEPONFORK for Linux and Android targets
  (#​2559)
• Add socket protocol Sctp, as well as MSG_NOTIFICATION for non-Android
  Linux targets. (#​2562)
• Added from_owned_fd constructor to EventFd
  (#​2563)
• Add sys::mman::MmapAdvise MADV_POPULATE_READ, MADV_POPULATE_WRITE for
  Linux and Android targets
  (#​2565)
• Added from_owned_fd constructor to
  PtyMaster/Fanotify/Inotify/SignalFd/TimerFd
  (#​2566)
• Added FcntlArg::F_READAHEAD for FreeBSD target
  (#​2569)
• Added sockopt::LingerSec for Apple targets
  (#​2572)
• Added sockopt::EsclBind for solarish targets
  (#​2573)
• Exposed the std::os::fd::AsRawFd trait method for
  nix::sys::fanotify::Fanotify struct
  (#​2575)
• Add support for syslog's setlogmask on all unix.
  (#​2579)
• Added Fuchsia support for ioctl.
  (#​2580)
• Add sys::socket::SockProtocol::EthIp,
  sys::socket::SockProtocol::EthIpv6,
  sys::socket::SockProtocol::EthLoop
  (#​2581)
• Add OpenHarmony target into CI and Update documents.
  (#​2599)
• Added the TcpMaxSeg setsockopt option for apple targets
  (#​2603)
• Add FilAttach and FilDetach to socket::sockopt for Illumos
  (#​2611)
• Add PeerPidfd (SO_PEERPIDFD) to socket::sockopt for Linux
  (#​2620)
• Added socket::sockopt::AttachReusePortCbpf for Linux
  (#​2621)
• Add ptrace::syscall_info for linux/glibc
  (#​2627)

Changed

• Module sys/signal now adopts I/O safety
  (#​1936)
• Change the type of the name argument of memfd_create() from &CStr to
  <P: NixPath>(name: &P) (#​2431)
• Public interfaces in fcntl.rs and dir.rs now use I/O-safe types.
  (#​2434)
• Module sys/stat now adopts I/O safety.
  (#​2439)
• Module unistd now adopts I/O safety.
  (#​2440)
• Module sys/fanotify now adopts I/O safety
  (#​2443)
• Socket option IpTos has been renamed to Ipv4Tos, the old symbol is
  deprecated since 0.30.0 (#​2465)
• Rename Flags EventFlag to EvFlags, and MemFdCreateFlag to MFdFlags
  (#​2476)
• Made nix::sys::socket::UnknownCmsg public and more readable
  (#​2520)
• recvmsg: take slice for cmsg_buffer instead of Vec
  (#​2524)
• linkat: allow distinct types for path arguments
  (#​2582)

Fixed

• Disable unsupported signals on sparc-linux
  (#​2454)
• Fix cmsg_len() return type on OpenHarmony
  (#​2456)
• The ns argument of sys::prctl::set_timerslack() should be of type
  c_ulong (#​2505)
• Properly exclude NUL characters from OSStrings returned by getsockopt.
  (#​2557)
• Fixes the build on OpenHarmony
  (#​2587)

Removed

• Type SigevNotify is no longer PartialEq, Eq and Hash due to the use
  of BorrowedFd (#​1936)
• EventFd::defuse() is removed because it does nothing, EventFd::arm() is
  also removed for symmetry reasons.
  (#​2452)
• Removed the Copy trait from PollFd
  (#​2631)