ObjFW  Changes On Branch c540d53637f9fe85

        include:
          - prefix: mingw32
            triple: i686-w64-mingw32
          - prefix: mingw64
            triple: x86_64-w64-mingw32
          - prefix: ucrt64
            triple: x86_64-w64-mingw32ucrt
    container: fedora:41
    steps:
    - name: Install dependencies
      run: |
        sudo dnf upgrade --refresh -y
        sudo dnf install -y ${{matrix.prefix}}-gcc ${{matrix.prefix}}-openssl clang autoconf automake make wine
    - uses: actions/checkout@v4
    - name: autogen.sh

name: macos-11
on: [push, pull_request]
jobs:
  tests:
    runs-on: macos-11
    strategy:
      matrix:
        configure_flags:
          - 
          - --disable-threads
          - --disable-threads --disable-sockets
          - --disable-threads --disable-files
          - --disable-threads --disable-sockets --disable-files
          - --disable-sockets
          - --disable-sockets --disable-files
          - --disable-files
          - --disable-shared
    steps:
    - name: Install dependencies
      run: brew install autoconf automake
    - uses: actions/checkout@v4
    - name: autogen.sh
      run: ./autogen.sh
    - name: configure
      run: ./configure ${{ matrix.configure_flags }}
    - name: make
      run: make -j$(sysctl -n hw.logicalcpu)
    - name: make check
      run: make check
    - name: make install
      run: sudo make install

name: macos-latest
on: [push, pull_request]
jobs:
  tests:
    runs-on: macos-latest
    strategy:
      matrix:
        configure_flags:
          - 
          - --disable-threads
          - --disable-threads --disable-sockets
          - --disable-threads --disable-files
          - --disable-threads --disable-sockets --disable-files
          - --disable-sockets
          - --disable-sockets --disable-files
          - --disable-files
          - --disable-shared
    steps:
    - name: Install dependencies
      run: brew install autoconf automake
    - uses: actions/checkout@v4
    - name: autogen.sh
      run: ./autogen.sh
    - name: configure
      run: ./configure ${{ matrix.configure_flags }}
    - name: make
      run: make -j$(sysctl -n hw.logicalcpu)
    - name: make check
      run: make check
    - name: make install
      run: sudo make install

Legend:
 * Changes of existing features or bugfixes
 + New features

This file only contains the most significant changes.








































ObjFW 1.1.1 -> ObjFW 1.1.2, 2024-04-20
 * Fixes configure script on systems using BusyBox for tr.
 * Fixes compiling for Haiku.
 * Fixes -[contentsOfDirectoryAtIRI:] corrupting the stack on Solaris.
 * Fixes compiling for Wii with newer SDK.
 * Fixes missing endbr / bti.
 * Minor optimizations to ARM64 assembly.

	     OF_WEAK_UNAVAILABLE=				\
	     SIGHUP						\
	     SIGUSR1						\
	     SIGUSR2
MACRO_EXPANSION = YES
EXPAND_ONLY_PREDEF = YES
IGNORE_PREFIX = OF OF_ OT OT_

Platforms
=========

ObjFW is known to work on the following platforms, but should run on many
others as well.


AmigaOS
-------

  * OS Versions: 3.1, 4.1 Final Edition Update 1
  * Architectures: m68k, PowerPC
  * Compilers: GCC 6.4.1b (amiga-gcc), GCC 8.3.0 (adtools)
  * Runtimes: ObjFW


Android
-------

  * OS Versions: 4.0.4, 4.1.2, 6.0.1
  * Architectures: ARMv6, ARMv7, ARM64
  * Compilers: Clang 3.3, Clang 3.8.0
  * Runtimes: ObjFW


Bare metal ARM Cortex-M4
------------------------

  * Architectures: ARMv7E-M
  * Compilers: Clang 3.5
  * Runtimes: ObjFW
  * Notes: Bootloader, libc (newlib) and possibly external RAM required


DOS
---

  * OS Versions: Windows XP DOS Emulation, DOSBox, MS-DOS 6.0, FreeDOS 1.2
  * Architectures: x86
  * Compilers: DJGPP GCC 4.7.3 (djdev204)
  * Runtimes: ObjFW


DragonFlyBSD
------------

  * OS Versions: 3.0, 3.3-DEVELOPMENT
  * Architectures: AMD64, x86
  * Compilers: GCC 4.4.7
  * Runtimes: ObjFW


FreeBSD
-------

  * OS Versions: 9.1-rc3, 10.0
  * Architectures: AMD64
  * Compilers: Clang 3.1, Clang 3.3
  * Runtimes: ObjFW


GNU/Hurd
--------

  * OS Versions: 0.9
  * Architectures: i686
  * Compilers: Clang 14.0.6
  * Runtimes: ObjFW


Haiku
-----

  * OS version: r1-alpha4
  * Architectures: x86
  * Compilers: Clang 3.2, GCC 4.6.3
  * Runtimes: ObjFW


HP-UX
-----

  * OS versions: 11i v1, 11i v3
  * Architectures: Itanium, PA-RISC 2.0
  * Compilers: GCC 4.7.2, GCC 7.5.0
  * Runtimes: ObjFW
  * Notes: Exception handling on Itanium in 32 bit mode is broken, you need to
           use 64 bit mode by passing `OBJC="gcc -mlp64"` to `configure`.


iOS
---

  * Architectures: ARMv7, ARM64
  * Compilers: Clang
  * Runtimes: Apple


Linux
-----

  * Architectures: Alpha, AMD64, ARMv6, ARMv7, ARM64, Itanium, m68k, MIPS (O32),
                   MIPS64 (N64), RISC-V 64, PowerPC, S390x, SuperH-4, x86

  * Compilers: Clang 3.0-10.0, GCC 4.6-10.0
  * C libraries: glibc, musl
  * Runtimes: ObjFW


macOS
-----

  * OS Versions: 10.5, 10.7-10.15, Darling
  * Architectures: AMD64, PowerPC, PowerPC64, x86
  * Compilers: Clang 3.1-10.0, Apple GCC 4.0.1 & 4.2.1
  * Runtimes: Apple, ObjFW


MiNT
----

  * OS Versions: FreeMiNT 1.19
  * Architectures: m68k
  * Runtimes: ObjFW
  * Compilers: GCC 4.6.4 (MiNT 20130415)
  * Limitations: No shared libraries, no threads


MorphOS
-------

  * OS Versions: 3.14
  * Architectures: PowerPC
  * Compilers: GCC 9.3.0
  * Runtimes: ObjFW


NetBSD
------

  * OS Versions: 5.1-9.0
  * Architectures: AMD64, ARM, ARM (big endian, BE8 mode), MIPS (O32), PowerPC,
                   SPARC, SPARC64, x86
  * Compilers: Clang 3.0-3.2, GCC 4.1.3 & 4.5.3 & 7.4.0
  * Runtimes: ObjFW


Nintendo 3DS
------------

  * OS Versions: 9.2.0-20E, 10.5.0-30E / Homebrew Channel 1.1.0
  * Architectures: ARM (EABI)
  * Compilers: GCC 5.3.0 (devkitARM release 45)
  * Runtimes: ObjFW
  * Limitations: No threads


Nintendo DS
-----------

  * Architectures: ARM (EABI)
  * Compilers: GCC 4.8.2 (devkitARM release 42)
  * Runtimes: ObjFW
  * Limitations: No threads, no sockets
  * Notes: File support requires an argv-compatible launcher (such as HBMenu)


Nintendo Switch
---------------

  * OS Versions: yuzu 1093
  * Architectures: AArch64
  * Compilers: GCC 12.1.0 (devkitA64 release 19) 
  * Runtimes: ObjFW
  * Limitations: No sockets, no shared libraries, not tested on real hardware


OpenBSD
-------

  * OS Versions: 5.2-6.7
  * Architectures: AMD64, MIPS64, PA-RISC, PowerPC, SPARC64
  * Compilers: GCC 6.3.0, Clang 4.0
  * Runtimes: ObjFW


PlayStation Portable
--------------------

  * OS Versions: 5.00 M33-4
  * Architectures: MIPS (EABI)
  * Compiler: GCC 4.6.2 (devkitPSP release 16)
  * Runtimes: ObjFW
  * Limitations: No threads, no sockets


QNX
---

  * OS Versions: 6.5.0
  * Architectures: x86
  * Compilers: GCC 4.6.1
  * Runtimes: ObjFW


Solaris
-------

  * OS Versions: OpenIndiana 2015.03, OpenIndiana 2023.04, Oracle Solaris 11.4
  * Architectures: AMD64, x86
  * Compilers: Clang 3.4.2, Clang 11.0.0, Clang 13.0.1, GCC 4.8.3, GCC 10.4.0
  * Runtimes: ObjFW


Wii
---

  * OS Versions: 4.3E / Homebrew Channel 1.1.0
  * Architectures: PowerPC
  * Compilers: GCC 4.6.3 (devkitPPC release 26)
  * Runtimes: ObjFW
  * Limitations: No threads


Wii U
-----

  * OS Versions: Cemu 12.26.2f
  * Architectures: PowerPC
  * Compilers: gcc version 12.1.0 (devkitPPC release 41)
  * Runtimes: ObjFW
  * Limitations: No files, no threads, no sockets, no shared libraries, not
                 tested on real hardware


Windows
-------

  * OS Versions: 98 SE, NT 4.0, XP, 7, 8, 8.1, 10, 11, Wine
  * Architectures: AArch64, AMD64, x86
  * Compilers: GCC 5.3.0 & 6.2.0 from msys2 (AMD64 & x86),
               Clang 3.9.0 from msys2 (x86),
               Clang 10.0 from msys2 (AMD64 & x86),
               Clang 14.0.4 from msys2 (AArch64)
  * Runtimes: ObjFW


Others
------

Basically, it should run on any POSIX system to which GCC >= 4.6 or a recent
Clang version has been ported. If not, please send an e-mail with a bug report.

If you successfully ran ObjFW on a platform not listed here, please send an
e-mail to js@nil.im so it can be added here!

If you have a platform on which ObjFW does not work, please contact me as well!


Forwarding
==========

As forwarding needs hand-written assembly for each combination of CPU
architecture, executable format and calling convention, it is only available
for the following platforms (except resolveClassMethod: and

There are three ways you are probably reading this right now:

 * On [ObjFW](https://objfw.nil.im/)'s homepage, via Fossil's web interface
 * On [GitHub](https://github.com/ObjFW/ObjFW)
 * Via an editor or pager, by opening `README.md` from a clone or tarball

ObjFW is developed using Fossil, so if you are reading this on GitHub or any
other place, you are most likely using a mirror.


<h1 id="table-of-contents">Table of Contents</h1>

 * [What is ObjFW?](#what)
 * [Installation](#installation)
 * [License](#license)
 * [Releases](#releases)
 * [Cloning the repository](#cloning)
 * [Building from source](#building-from-source)
   * [macOS and iOS](#macos-and-ios)
     * [Building as a framework](#building-framework)
     * [Using the macOS or iOS framework in Xcode](#framework-in-xcode)
     * [Broken Xcode versions](#broken-xcode-versions)
   * [Windows](#windows)
     * [Getting MSYS2](#getting-msys2)
     * [Setting up MSYS2](#setting-up-msys2)
     * [Getting, building and installing ObjFW](#steps-windows)
   * [Nintendo DS, Nintendo 3DS and Wii](#nintendo)
     * [Nintendo DS](#nintendo-ds)
     * [Nintendo 3DS](#nintendo-3ds)
     * [Wii](#wii)
   * [Amiga](#amiga)
 * [Writing your first application with ObjFW](#first-app)
 * [Documentation](#documentation)
 * [Bugs and feature requests](#bugs)
 * [Support and community](#support)
 * [Donating](#donating)
 * [Thanks](#thanks)
 * [Commercial use](#commercial-use)


<h1 id="what">What is ObjFW?</h1>

  ObjFW is a portable, lightweight framework for the Objective-C language. It
  enables you to write an application in Objective-C that will run on any
  [platform](PLATFORMS.md) supported by ObjFW without having to worry about
  differences between operating systems or various frameworks you would
  otherwise need if you want to be portable.

  It supports all modern Objective-C features when using Clang, but is also
  compatible with GCC ≥ 4.6 to allow maximum portability.

  ObjFW is intentionally incompatible with Foundation. This has two reasons:

   * GNUstep already provides a reimplementation of Foundation, which is only
     compatible to a certain degree. This means that a developer still needs to
     care about differences between frameworks if they want to be portable. The
     idea behind ObjFW is that a developer does not need to concern themselves
     with portability and making sure their code works with multiple
     frameworks: Instead, if it works it ObjFW on one platform, they can
     reasonably expect it to also work with ObjFW on another platform. ObjFW
     behaving differently on different operating systems (unless inevitable
     because it is a platform-specific part, like the Windows Registry) is
     considered a bug and will be fixed.
   * Foundation predates a lot of modern Objective-C concepts. The most
     prominent one is exceptions, which are only used in Foundation as a
     replacement for `abort()`. This results in cumbersome error handling,
     especially in initializers, which in Foundation only return `nil` on error
     with no indication of what went wrong. It also means that the return of
     every `init` call needs to be checked against `nil`. But in the wild,
     nobody actually checks *each and every* return from `init` against `nil`,
     leading to bugs. ObjFW fixes this by making exceptions a first class
     citizen.

  ObjFW also comes with its own lightweight and extremely fast Objective-C
  runtime, which in real world use cases was found to be significantly faster
  than both GNU's and Apple's runtime.


<h1 id="installation">Installation</h1>

  ObjFW packages are available for various operating systems and can be
  installed as following:

  Operating System           | Command
  ---------------------------|---------------------------------------------
  Alpine Linux               | `doas apk add objfw`
  CRUX                       | `sudo prt-get depinst objfw`
  Fedora                     | `sudo dnf install objfw`
  FreeBSD                    | `sudo pkg install objfw`
  Haiku                      | `pkgman install objfw`
  Haiku (gcc2h)              | `pkgman install objfw_x86`
  macOS (Homebrew)           | `brew install objfw`
  macOS (pkgsrc)             | `cd $PKGSRCDIR/devel/objfw && make install`
  NetBSD                     | `cd /usr/pkgsrc/devel/objfw && make install`
  OpenBSD                    | `doas pkg_add objfw`
  OpenIndiana                | `sudo pkg install developer/objfw`
  Windows (MSYS2/CLANG64)    | `pacman -S mingw-w64-clang-x86_64-objfw`
  Windows (MSYS2/CLANGARM64) | `pacman -S mingw-w64-clang-aarch64-objfw`
  Windows (MSYS2/UCRT64)     | `pacman -S mingw-w64-ucrt-x86_64-objfw`
  Windows (MSYS2/MINGW32)    | `pacman -S mingw-w64-i686-objfw`

  If your operating system is not listed, you can
  <a href="#building-from-source">build ObjFW from source</a>.  


<h1 id="license">License</h1>

  ObjFW is released under the GNU Lesser General Public License version 3.0.

  If this license does not work for you, contact me and we can find a solution.


<h1 id="releases">Releases</h1>

  Releases of ObjFW, as well as change logs and the accompanying documentation,
  can be found [here](https://objfw.nil.im/wiki?name=Releases).


<h1 id="cloning">Cloning the repository</h1>

  ObjFW is developed in a [Fossil](https://fossil-scm.org) repository, with
  automatic incremental exports to Git. This means you can either clone the
  Fossil repository or the Git repository - it does not make a huge difference.
  The main advantage of cloning the Fossil repository over cloning the Git
  repository is that you also get all the tickets, wiki pages, etc.

<h2 id="cloning-fossil">Fossil</h2>

  Clone the Fossil repository like this:

    fossil clone https://objfw.nil.im

  You can then use Fossil's web interface to browse the timeline, tickets,
  wiki pages, etc.:

    cd objfw
    fossil ui

  In order to verify the signature of the currently checked out checkin, you
  can use:

    fossil artifact current | gpg --verify

  Please note that not all checkins are signed, as the signing key only resides
  on trusted systems. This means that checkins I perform on e.g. Windows are
  unsigned. However, usually it should not take long until there is another
  signed checkin. Alternatively, you can go back until the last signed checkin
  and review changes from there on.

<h2 id="cloning-git">Git</h2>

  To clone the Git repository, use the following:

    git clone https://github.com/ObjFW/ObjFW

  Git commits are not signed, so if you want to check the signature of an
  individual commit, branch head or tag, please use Fossil.

<h1 id="building-from-source">Building from source</h1>

  To build ObjFW from source and install it, just run the following commands:

    ./configure
    make
    make check
    sudo make install

  In case you checked out ObjFW from the Fossil or Git repository, you need to
  run the following command first:

    ./autogen.sh

<h2 id="macos-and-ios">macOS and iOS</h2>

<h3 id="building-framework">Building as a framework</h3>

  When building for macOS or iOS, everything is built as a `.framework` by
  default if `--disable-shared` has not been specified to `./configure`. The
  frameworks will end up in `$PREFIX/Library/Frameworks`.

  To build for macOS, just follow the
  <a href="#building-from-source">regular instructions</a> above.

  To build for iOS, follow the regular instructions, but instead of
  `./configure` do something like this:

    clang="xcrun --sdk iphoneos clang"
    export OBJC="$clang -arch arm64e -arch arm64"
    export OBJCPP="$clang -arch arm64e -E"
    export IPHONEOS_DEPLOYMENT_TARGET="10.0"
    ./configure --prefix=/usr/local/ios --host=arm64-apple-darwin

  To build for the iOS simulator, follow the regular instructions, but instead
  of `./configure` use something like this:

    clang="xcrun --sdk iphonesimulator clang"
    export OBJC="$clang -arch $(uname -m)"
    export IPHONEOS_DEPLOYMENT_TARGET="10.0"
    ./configure --prefix=/usr/local/iossim --host=$(uname -m)-apple-darwin

<h3 id="framework-in-xcode">Using the macOS or iOS framework in Xcode</h3>

  To use the macOS framework in Xcode, you need to add the `.framework`s to
  your project and add the following flags to `Other C Flags`:

    -fconstant-string-class=OFConstantString -fno-constant-cfstrings

<h3 id="broken-xcode-versions">Broken Xcode versions</h3>

  Some versions of Xcode shipped with a version of Clang that ignores
  `-fconstant-string-class=OFConstantString`. This will manifest in an error
  like this:

    OFAllocFailedException.m:94:10: error: cannot find interface declaration for
          'NSConstantString'
            return @"Allocating an object failed!";
                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    1 error generated.

  Unfortunately, there is no workaround for this other than to
  upgrade/downgrade Xcode or to build upstream Clang yourself.

  In particular, Xcode 11 Beta 1 to Beta 3 are known to be affected. While
  Xcode 11 Beta 4 to Xcode 11.3 work, the bug was unfortunately reintroduced in
  Xcode 11.4.1 and was only fixed in Xcode 12 Beta 1.

  You can get older versions of Xcode
  [here](https://developer.apple.com/download) by clicking on "More" in the
  top-right corner.

<h2 id='windows'>Windows</h2>

  Windows is only officially supported when following these instructions, as
  there are many MinGW versions that behave slightly differently and often
  cause problems.

<h3 id="getting-msys2">Getting MSYS2</h3>

  The first thing to install is [MSYS2](https://www.msys2.org) to provide a
  basic UNIX-like environment for Windows. Unfortunately, the binaries are not
  signed, so make sure you download it via HTTPS. However, packages you
  download and install via MSYS2 are cryptographically signed.

<h3 id="setting-up-msys2">Setting up MSYS2</h3>

  MSYS2 currently supports 7 different
  [environments](https://www.msys2.org/docs/environments/). All of them except
  for the one called just "MSYS" are supported, but which packages you need to
  install depends on the environment(s) you want to use. If you only want to
  target Windows 10 and newer, the CLANG64 and CLANG32 environments are the
  recommended ones.

  For CLANG64, use:

    pacman -Syu mingw-w64-clang-x86_64-clang \
                mingw-w64-clang-x86_64-fossil \
                mingw-w64-clang-x86_64-openssl

  For CLANG32, use:

    pacman -Syu mingw-w64-clang-i686-clang \
                mingw-w64-clang-i686-fossil \
                mingw-w64-clang-i686-openssl

  For CLANGARM64, use (you need to use Fossil via another environment):

    pacman -Syu mingw-w64-clang-aarch64-clang mingw-w64-clang-aarch64-openssl

  For MINGW64, use:

    pacman -Syu mingw-w64-x86_64-clang \
                mingw-w64-x86_64-fossil \
                mingw-w64-x86_64-openssl

  For MINGW32, use:

    pacman -Syu mingw-w64-i686-clang \
                mingw-w64-i686-fossil \
                mingw-w64-i686-openssl

  For UCRT64, use:

    pacman -Syu mingw-w64-ucrt-x86_64-clang \
                mingw-w64-ucrt-x86_64-fossil \
                mingw-w64-ucrt-x86_64-openssl

  When using `pacman` to install the packages, `pacman` might tell you to close
  the window. If it does so, close the window, restart MSYS2 and execute the
  `pacman` command again.

  There is nothing wrong with installing multiple environments, as MSYS2 has
  created shortcuts for each of them in your start menu. Just make sure to use
  the correct shortcut for the environment you want to use.

  Finally, install a few more things that are common between all environments:

    pacman -S autoconf automake make

<h3 id="steps-windows">Getting, building and installing ObjFW</h3>

  Start the MSYS2 using the shortcut for the environment you want to use and
  check out ObjFW:

    fossil clone https://objfw.nil.im

  You can also download a release tarball if you want. Now `cd` to the newly
  checked out repository and build and install it:

    ./autogen.sh && ./configure && make -j16 install

  If everything was successful, you can now build projects using ObjFW for
  Windows using the normal `objfw-compile` and friends.

<h2 id="nintendo">Nintendo DS, Nintendo 3DS and Wii</h2>

  Download and install [devkitPro](https://devkitpro.org/wiki/Getting_Started).

<h3 id="nintendo-ds">Nintendo DS</h3>

  Follow the normal process, but instead of `./configure` run:

    ./configure --host=arm-none-eabi --with-nds

<h3 id="nintendo-3ds">Nintendo 3DS</h3>

  Follow the normal process, but instead of `./configure` run:

    ./configure --host=arm-none-eabi --with-3ds

<h3 id="wii">Wii</h3>

  Follow the normal process, but instead of `./configure` run:

    ./configure --host=powerpc-eabi --with-wii

<h2 id="amiga">Amiga</h2>

  Install [amiga-gcc](https://github.com/bebbo/amiga-gcc). Then follow the
  normal process, but instead of `./configure` run:

    ./configure --host=m68k-amigaos


<h1 id="first-app">Writing your first application with ObjFW</h1>

  To create your first, empty application, you can use `objfw-new`:

    objfw-new --app MyFirstApp

  This creates a file `MyFirstApp.m`. The `-[applicationDidFinishLaunching:]`
  method is called as soon as ObjFW finished all initialization. Use this as
  the entry point to your own code. For example, you could add the following
  line there to create a "Hello World":

    [OFStdOut writeLine: @"Hello World!"];

  You can compile your new app using `objfw-compile`:

    objfw-compile -o MyFirstApp MyFirstApp.m

  `objfw-compile` is a tool that allows building applications and libraries
  using ObjFW without needing a full-blown build system. If you want to use
  your own build system, you can get the necessary flags from `objfw-config`.


<h1 id="documentation">Documentation</h1>

  You can find the documentation for released versions of ObjFW
  [here](https://objfw.nil.im/docs/).

  In order to build the documentation yourself (necessary to have documentation
  for trunk / master), you need to have [Doxygen](https://www.doxygen.nl)
  installed. Once installed, you can build the documentation from the root
  directory of the repository:

    make docs


<h1 id="bugs">Bugs and feature requests</h1>

  If you find any bugs or have feature requests, please
  [file a new bug](https://objfw.nil.im/tktnew) in the
  [bug tracker](https://objfw.nil.im/reportlist).

  Alternatively, feel free to send a mail to js@nil.im!


<h1 id="support">Support and community</h1>

  If you have any questions about ObjFW or would like to talk to other ObjFW
  users, the following venues are available:

   * The [forum](https://objfw.nil.im/forum)
   * A [Matrix room](https://matrix.to/#/%23objfw:nil.im)
   * A [Discord room](https://objfw.nil.im/discord), bridged to the Matrix
     room above
   * A [Telegram room](https://t.me/objfw), bridged to the Matrix room above
   * A [Slack room](https://objfw.nil.im/slack), bridged to the Matrix room
     above
   * An IRC channel named `#objfw` on `irc.oftc.net`
     ([Web chat](https://webchat.oftc.net/?channels=%23objfw)), bridged to the
     Matrix room above

  Please don't hesitate to join any or all of those!


<h1 id="donating">Donating</h1>

  If you want to donate to ObjFW, you can read about possible ways to do so
  [here](https://objfw.nil.im/wiki?name=Donating).


<h1 id="thanks">Thanks</h1>

  * Thank you to [Jonathan Neuschäfer](https://github.com/neuschaefer) for
    reviewing the *entirety* (all 84k LoC at the time) of ObjFW's codebase in
    2017!
  * Thank you to [Hill Ma](https://github.com/mahiuchun) for donating an M1 Mac
    Mini to the project in 2022!


<h1 id="commercial-use">Commercial use</h1>

  If for whatever reason the terms of GNU Lesser General Public License version
  3.0 don't work for you, a proprietary license for ObjFW including support is
  available upon request. Just write a mail to js@nil.im and we can find a
  reasonable solution for both parties.

AC_INIT(ObjFW, 1.2dev, js@nil.im, objfw, https://objfw.nil.im/)
AC_CONFIG_SRCDIR(src)
AC_CONFIG_AUX_DIR(build-aux)
AC_CONFIG_MACRO_DIR(build-aux/m4)

AC_DEFINE(OBJFW_VERSION_MAJOR, 1, [The major version of ObjFW])
AC_DEFINE(OBJFW_VERSION_MINOR, 2, [The minor version of ObjFW])
dnl This may only be set to 1.2 once 1.2 is released
AC_SUBST(BUNDLE_VERSION, 1.1.0)
AC_SUBST(BUNDLE_SHORT_VERSION, 1.1)

for i in configure.ac build-aux/m4/*; do
	AS_IF([test $i -nt configure], [
		AC_MSG_ERROR([$i is newer than configure! Run ./autogen.sh!])
	])
done

	case "$host" in
	mips*-*-*)
		dnl Clang generates MIPS assembly not accepted by GNU as,
		dnl however, Clang's integrated assembler doesn't accept
		dnl everything used in ObjFW's assembly files. Therefore, use
		dnl the integrated assembler for ObjC files, but not for
		dnl assembly files.

		OBJCFLAGS="$OBJCFLAGS -integrated-as"
		OBJFW_OBJCFLAGS="$OBJFW_OBJCFLAGS -integrated-as"
		;;
	i?86-*-darwin* | x86_64-*-darwin*)
		dnl Don't use -no-integrated-as on Darwin. It breaks building
		dnl for the iOS simulator.
		;;

AC_MSG_RESULT($fp_endianess)
AS_IF([test x"$fp_endianess" = x"unknown"], [
	AC_MSG_ERROR(
		[Floating point implementation does not conform to IEEE 754!])])

case "$host_cpu" in
arm* | earm*)

















	AC_MSG_CHECKING(for VFP2 or above)
	AC_COMPILE_IFELSE([
		AC_LANG_PROGRAM([], [
			#if !defined(__arm64__) && !defined(__aarch64__) && \
			    !defined(__ARM64_ARCH_8__)
			__asm__ __volatile__ (
			    "vstmdb	sp!, {d0-d7}"

])

AS_IF([test x"$GOBJC" = x"yes"], [
	OBJCFLAGS="$OBJCFLAGS -Wwrite-strings -Wpointer-arith"

	AC_ARG_ENABLE(werror,
		AS_HELP_STRING([--disable-werror], [do not build with -Werror]))
	AS_IF([test x"$enable_werror" != x"no"], [
		OBJCFLAGS="$OBJCFLAGS -Werror"
	])

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Werror"
	AC_MSG_CHECKING(whether we need -Wno-strict-aliasing due to GCC bugs)
	AC_COMPILE_IFELSE([

OBJFW_SHARED_LIB = @OBJFW_SHARED_LIB@
OBJFW_STATIC_LIB = @OBJFW_STATIC_LIB@
OBJFW_FRAMEWORK = @OBJFW_FRAMEWORK@
OBJFW_LIB_MAJOR = 1
OBJFW_LIB_MINOR = 1
OBJFW_LIB_PATCH = 0
OBJFW_LIB_MAJOR_MINOR = ${OBJFW_LIB_MAJOR}.${OBJFW_LIB_MINOR}

OBJFWRT_SHARED_LIB = @OBJFWRT_SHARED_LIB@
OBJFWRT_STATIC_LIB = @OBJFWRT_STATIC_LIB@
OBJFWRT_FRAMEWORK = @OBJFWRT_FRAMEWORK@
OBJFWRT_LIB_MAJOR = 1
OBJFWRT_LIB_MINOR = 1
OBJFWRT_LIB_PATCH = 0
OBJFWRT_LIB_MAJOR_MINOR = ${OBJFWRT_LIB_MAJOR}.${OBJFWRT_LIB_MINOR}

OBJFWBRIDGE_SHARED_LIB = @OBJFWBRIDGE_SHARED_LIB@
OBJFWBRIDGE_STATIC_LIB = @OBJFWBRIDGE_STATIC_LIB@
OBJFWBRIDGE_FRAMEWORK = @OBJFWBRIDGE_FRAMEWORK@
OBJFWBRIDGE_LIB_MAJOR = 1
OBJFWBRIDGE_LIB_MINOR = 0

	void *pool = objc_autoreleasePoolPush();
	OFFile *file = [OFFile fileWithPath: path
				       mode: @"w"];

	[file writeString: COPYRIGHT
	    @"#include \"config.h\"\n"
	    @"\n"
	    @"#import \"OFString.h\"\n\n"

	    @"static const OFUnichar emptyPage[0x100] = { 0 };\n"
	    @"\n"];

	/* Write uppercasePage%u */
	for (OFUnichar i = 0; i < 0x110000; i += 0x100) {
		bool isEmpty = true;

	 * But from now on, we need the size.
	 */
	_uppercaseTableSize++;
	_lowercaseTableSize++;
	_titlecaseTableSize++;
	_caseFoldingTableSize++;

	/* Write OFUnicodeUppercaseTable */
	[file writeFormat: @"const OFUnichar *const "
			   @"OFUnicodeUppercaseTable[0x%X] = {\n\t",
			   _uppercaseTableSize];

	for (OFUnichar i = 0; i < _uppercaseTableSize; i++) {
		if (_uppercaseTableUsed[i])
			[file writeFormat: @"uppercasePage%u", i];
		else
			[file writeString: @"emptyPage"];

		if (i + 1 < _uppercaseTableSize) {
			if ((i + 1) % 4 == 0)
				[file writeString: @",\n\t"];
			else
				[file writeString: @", "];
		}
	}

	[file writeString: @"\n};\n\n"];

	/* Write OFUnicodeLowercaseTable */
	[file writeFormat: @"const OFUnichar *const "
			   @"OFUnicodeLowercaseTable[0x%X] = {\n\t",
			   _lowercaseTableSize];

	for (OFUnichar i = 0; i < _lowercaseTableSize; i++) {
		if (_lowercaseTableUsed[i])
			[file writeFormat: @"lowercasePage%u", i];
		else
			[file writeString: @"emptyPage"];

		if (i + 1 < _lowercaseTableSize) {
			if ((i + 1) % 4 == 0)
				[file writeString: @",\n\t"];
			else
				[file writeString: @", "];
		}
	}

	[file writeString: @"\n};\n\n"];

	/* Write OFUnicodeTitlecaseTable */
	[file writeFormat: @"const OFUnichar *const "
			   @"OFUnicodeTitlecaseTable[0x%X] = {\n\t",
			   _titlecaseTableSize];

	for (OFUnichar i = 0; i < _titlecaseTableSize; i++) {
		if (_titlecaseTableUsed[i] == 1)
			[file writeFormat: @"titlecasePage%u", i];
		else if (_titlecaseTableUsed[i] == 2)
			[file writeFormat: @"uppercasePage%u", i];
		else
			[file writeString: @"emptyPage"];

		if (i + 1 < _titlecaseTableSize) {
			if ((i + 1) % 4 == 0)
				[file writeString: @",\n\t"];
			else
				[file writeString: @", "];
		}
	}

	[file writeString: @"\n};\n\n"];

	/* Write OFUnicodeCaseFoldingTable */
	[file writeFormat: @"const OFUnichar *const "
			   @"OFUnicodeCaseFoldingTable[0x%X] = {\n\t",
			   _caseFoldingTableSize];

	for (OFUnichar i = 0; i < _caseFoldingTableSize; i++) {
		if (_caseFoldingTableUsed[i] == 1)
			[file writeFormat: @"caseFoldingPage%u", i];
		else if (_caseFoldingTableUsed[i] == 2)
			[file writeFormat: @"lowercasePage%u", i];

	OFFile *file = [OFFile fileWithPath: path
				       mode: @"w"];

	[file writeString: COPYRIGHT
	    @"#import \"OFString.h\"\n\n"];

	[file writeFormat:
	    @"#define OFUnicodeUppercaseTableSize 0x%X\n"
	    @"#define OFUnicodeLowercaseTableSize 0x%X\n"
	    @"#define OFUnicodeTitlecaseTableSize 0x%X\n"
	    @"#define OFUnicodeCaseFoldingTableSize 0x%X\n\n",
	    _uppercaseTableSize, _lowercaseTableSize, _titlecaseTableSize,
	    _caseFoldingTableSize];

	[file writeString:
	    @"#ifdef __cplusplus\n"
	    @"extern \"C\" {\n"
	    @"#endif\n"
	    @"extern const OFUnichar *const _Nonnull\n"
	    @"    OFUnicodeUppercaseTable[OFUnicodeUppercaseTableSize];\n"

	    @"extern const OFUnichar *const _Nonnull\n"
	    @"    OFUnicodeLowercaseTable[OFUnicodeLowercaseTableSize];\n"

	    @"extern const OFUnichar *const _Nonnull\n"
	    @"    OFUnicodeTitlecaseTable[OFUnicodeTitlecaseTableSize];\n"

	    @"extern const OFUnichar *const _Nonnull\n"
	    @"    OFUnicodeCaseFoldingTable[OFUnicodeCaseFoldingTableSize];\n"

	    @"#ifdef __cplusplus\n"
	    @"}\n"
	    @"#endif\n"];

	objc_autoreleasePoolPop(pool);
}
@end

#import "macros.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int OFVASPrintF(
    char *_Nullable *_Nonnull, const char *_Nonnull, va_list);

#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

		if (ctx->lengthModifier != lengthModifierNone)
			return false;

		ctx->subformat[ctx->subformatLen - 1] = 's';

		{
			char buffer[5];
			size_t len = OFUTF8StringEncode(
			    va_arg(ctx->arguments, OFUnichar), buffer);

			if (len == 0)
				return false;

			buffer[len] = 0;
			tmpLen = asprintf(&tmp, ctx->subformat, buffer);

				return false;

			if ((buffer = malloc((len * 4) + 1)) == NULL)
				return false;

			j = 0;
			for (size_t i = 0; i < len; i++) {
				size_t clen = OFUTF8StringEncode(arg[i],
				    buffer + j);

				if (clen == 0) {
					free(buffer);
					return false;
				}

	formatFlagsState,
	formatFieldWidthState,
	formatLengthModifierState,
	formatConversionSpecifierState
};

int
OFVASPrintF(char **string, const char *format, va_list arguments)
{
	struct Context ctx;

	ctx.format = format;
	ctx.formatLen = strlen(format);
	memset(ctx.subformat, 0, maxSubformatLen + 1);
	ctx.subformatLen = 0;

	[delegate release];

	[[OFNotificationCenter defaultCenter] postNotification: notification];

#if defined(OF_HAVE_THREADS) && defined(OF_HAVE_SOCKETS) && \
    defined(OF_AMIGAOS) && !defined(OF_MORPHOS)
	OFSocketDeinit();
#endif
}

int
OFApplicationMain(int *argc, char **argv[], id <OFApplicationDelegate> delegate)
{
	[OFLocale currentLocale];

@interface OFArchiveIRIHandler: OFIRIHandler
@end

#ifdef __cplusplus
extern "C" {
#endif
extern OFIRI *OFArchiveIRIHandlerIRIForFileInArchive(OFString *, OFString *,
    OFIRI *);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

{
	return (character != '!' && _characterIsMember(_characterSet,
	    @selector(characterIsMember:), character));
}
@end

OFIRI *
OFArchiveIRIHandlerIRIForFileInArchive(OFString *scheme,
    OFString *pathInArchive, OFIRI *archiveIRI)
{
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFMutableIRI *ret = [OFMutableIRI IRIWithScheme: scheme];
	void *pool = objc_autoreleasePoolPush();

	OFOnce(&onceControl, initPathAllowedCharacters);

@class OFString;
@class OFMutableData;

#ifdef __cplusplus
extern "C" {
#endif
extern OFString *OFBase64Encode(const void *, size_t);
extern bool OFBase64Decode(OFMutableData *, const char *, size_t);

#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

	 3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
	20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, -1, 26, 27, 28, 29, 30,
	31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
	48, 49, 50, 51, -1, -1, -1, -1, -1
};

OFString *
OFBase64Encode(const void *data, size_t length)
{
	OFMutableString *ret = [OFMutableString string];
	uint8_t *buffer = (uint8_t *)data;
	size_t i;
	uint8_t rest;
	char tb[4];
	uint32_t sb;

	[ret makeImmutable];

	return ret;
}

bool
OFBase64Decode(OFMutableData *data, const char *string, size_t length)
{
	const uint8_t *buffer = (const uint8_t *)string;
	size_t i;

	if ((length & 3) != 0)
		return false;

	0, NULL, 3, 0,
	{
		&_NSConcreteStackBlock, &_NSConcreteGlobalBlock,
		&_NSConcreteMallocBlock, NULL
	}
};

static struct objc_module module = {
	8, sizeof(module), NULL, (struct objc_symtab *)&symtab
};

OF_CONSTRUCTOR()
{
	__objc_exec_class(&module);
}

#endif

#import "macros.h"

#ifdef __cplusplus
extern "C" {
#endif
extern uint16_t OFCRC16(uint16_t crc, const void *_Nonnull bytes,
    size_t length);
#ifdef __cplusplus
}
#endif

#include "config.h"

#import "OFCRC16.h"

static const uint16_t CRC16Magic = 0xA001;

uint16_t
OFCRC16(uint16_t CRC, const void *bytes_, size_t length)
{
	const unsigned char *bytes = bytes_;

	for (size_t i = 0; i < length; i++) {
		CRC ^= bytes[i];

		for (uint8_t j = 0; j < 8; j++)

#endif

#import "macros.h"

#ifdef __cplusplus
extern "C" {
#endif
extern uint32_t OFCRC32(uint32_t crc, const void *_Nonnull bytes,
    size_t length);
#ifdef __cplusplus
}
#endif

#include "config.h"

#import "OFCRC32.h"

static const uint32_t CRC32Magic = 0xEDB88320;

uint32_t
OFCRC32(uint32_t CRC, const void *bytes_, size_t length)
{
	const unsigned char *bytes = bytes_;

	for (size_t i = 0; i < length; i++) {
		CRC ^= bytes[i];

		for (uint8_t j = 0; j < 8; j++)

- (instancetype)initWithBytes: (const void *)bytes
		     objCType: (const char *)objCType
{
	self = [super initWithBytes: bytes objCType: objCType];

	@try {
		_size = OFSizeOfTypeEncoding(objCType);
		_objCType = OFStrDup(objCType);
		_bytes = OFAllocMemory(1, _size);
		memcpy(_bytes, bytes, _size);
	} @catch (id e) {
		[self release];
		@throw e;
	}

		if ([self isMemberOfClass: [OFConstantUTF8String class]])
			return;

		ivars = OFAllocZeroedMemory(1, sizeof(*ivars));
		ivars->cString = _cString;
		ivars->cStringLength = _cStringLength;

		switch (OFUTF8StringCheck(ivars->cString, ivars->cStringLength,
		    &ivars->length)) {
		case 1:
			ivars->isUTF8 = true;
			break;
		case -1:
			OFFreeMemory(ivars);
			@throw [OFInvalidEncodingException exception];

#endif
		@throw [OFBindDDPSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			    protocolType: protocolType
				  socket: self
				   errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	if (bind(_socket, (struct sockaddr *)&address.sockaddr,
	    address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindDDPSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			    protocolType: protocolType
				  socket: self
				   errNo: errNo];
	}

	memset(&address, 0, sizeof(address));
	address.family = OFSocketAddressFamilyAppleTalk;
	address.length = (socklen_t)sizeof(address.sockaddr);

	if (OFGetSockName(_socket, (struct sockaddr *)&address.sockaddr,
	    &address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindDDPSocketFailedException
		    exceptionWithNetwork: network
				    node: node

	    struct ATInterfaceConfig), &config) != 0)
		@throw [OFBindDDPSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			    protocolType: protocolType
				  socket: self
				   errNo: OFSocketErrNo()];

	OFSocketAddressSetAppleTalkNetwork(&address, config.address.s_net);
	OFSocketAddressSetAppleTalkNode(&address, config.address.s_node);
#endif

#if !defined(OF_MACOS) && !defined(OF_WINDOWS)
	_protocolType = protocolType;

	if (_socket == OFInvalidSocketHandle)
		@throw [OFNotOpenException exceptionWithObject: self];

	if ((ret = recvmsg(_socket, &msg, 0)) < 0)
		@throw [OFReadFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: OFSocketErrNo()];

	if (ret < 1 || protocolType != _protocolType)
		@throw [OFReadFailedException exceptionWithObject: self
						  requestedLength: length
							    errNo: ENOMSG];

	if (sender != NULL) {

		@throw [OFNotOpenException exceptionWithObject: self];

	if ((bytesWritten = sendmsg(_socket, &msg, 0)) < 0)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
			   bytesWritten: 0
				  errNo: OFSocketErrNo()];

	if ((size_t)bytesWritten != length + 1) {
		bytesWritten--;

		if (bytesWritten < 0)
			bytesWritten = 0;

@implementation OFDNSResolver
#ifdef OF_AMIGAOS
+ (void)initialize
{
	if (self != [OFDNSResolver class])
		return;

	if (!OFSocketInit())
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
}
#endif

+ (instancetype)resolver
{

OF_ASSUME_NONNULL_BEGIN

@class OFString;

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFData_CryptographicHashing_reference;
#ifdef __cplusplus
}
#endif

@interface OFData (CryptographicHashing)
/**
 * @brief The MD5 hash of the data as a string.

#import "OFData.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFData_MessagePackParsing_reference;
#ifdef __cplusplus
}
#endif

@interface OFData (MessagePackParsing)
/**
 * @brief The data interpreted as MessagePack representation and parsed as an

	Class isa;
} placeholder;

@interface OFPlaceholderData: OFString
@end

/* References for static linking */
void
_references_to_categories_of_OFData(void)
{
	_OFData_CryptographicHashing_reference = 1;
	_OFData_MessagePackParsing_reference = 1;
}

@implementation OFPlaceholderData

{
	void *pool = objc_autoreleasePoolPush();
	OFMutableData *data;

	@try {
		data = [OFMutableData data];

		if (!OFBase64Decode(data,
		    [string cStringWithEncoding: OFStringEncodingASCII],
		    [string cStringLengthWithEncoding: OFStringEncodingASCII]))
			@throw [OFInvalidFormatException exception];
	} @catch (id e) {
		[self release];
		@throw e;
	}

	[ret makeImmutable];
	return ret;
}

- (OFString *)stringByBase64Encoding
{
	return OFBase64Encode(self.items, self.count * self.itemSize);
}

- (OFRange)rangeOfData: (OFData *)data
	       options: (OFDataSearchOptions)options
		 range: (OFRange)range
{
	const unsigned char *items = self.items;

@synthesize delegate = _delegate;

+ (void)initialize
{
	if (self != [OFDatagramSocket class])
		return;

	if (!OFSocketInit())
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
}

+ (instancetype)socket
{
	return [[[self alloc] init] autorelease];

	_canBlock = canBlock;
#elif defined(OF_WINDOWS)
	u_long v = !canBlock;

	if (ioctlsocket(_socket, FIONBIO, &v) == SOCKET_ERROR)
		@throw [OFSetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];

	_canBlock = canBlock;
#else
	OF_UNRECOGNIZED_SELECTOR
#endif
}

- (void)setCanSendToBroadcastAddresses: (bool)canSendToBroadcastAddresses
{
	int v = canSendToBroadcastAddresses;

	if (setsockopt(_socket, SOL_SOCKET, SO_BROADCAST,
	    (char *)&v, (socklen_t)sizeof(v)) != 0)
		@throw [OFSetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];

#ifdef OF_WII
	_canSendToBroadcastAddresses = canSendToBroadcastAddresses;
#endif
}

- (bool)canSendToBroadcastAddresses
{
#ifndef OF_WII
	int v;
	socklen_t len = sizeof(v);

	if (getsockopt(_socket, SOL_SOCKET, SO_BROADCAST,
	    (char *)&v, &len) != 0 || len != sizeof(v))
		@throw [OFGetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];

	return v;
#else
	return _canSendToBroadcastAddresses;
#endif
}

#ifndef OF_WINDOWS
	if ((ret = recvfrom(_socket, buffer, length, 0,
	    (sender != NULL ? (struct sockaddr *)&sender->sockaddr : NULL),
	    (sender != NULL ? &sender->length : NULL))) < 0)
		@throw [OFReadFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: OFSocketErrNo()];
#else
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if ((ret = recvfrom(_socket, buffer, (int)length, 0,
	    (sender != NULL ? (struct sockaddr *)&sender->sockaddr : NULL),
	    (sender != NULL ? &sender->length : NULL))) < 0)
		@throw [OFReadFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: OFSocketErrNo()];
#endif

	if (sender != NULL) {
		struct sockaddr *sa = (struct sockaddr *)&sender->sockaddr;

		if (sender->length >= (socklen_t)sizeof(sa->sa_family)) {
			switch (sa->sa_family) {

	if ((bytesWritten = sendto(_socket, (void *)buffer, length, 0,
	    (struct sockaddr *)&receiver->sockaddr, receiver->length)) < 0)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
			   bytesWritten: 0
				  errNo: OFSocketErrNo()];
#else
	int bytesWritten;

	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if ((bytesWritten = sendto(_socket, buffer, (int)length, 0,
	    (struct sockaddr *)&receiver->sockaddr, receiver->length)) < 0)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
			   bytesWritten: 0
				  errNo: OFSocketErrNo()];
#endif

	if ((size_t)bytesWritten != length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
						      bytesWritten: bytesWritten
							     errNo: 0];

	if (seconds == 0) {
		static OFOnceControl once = OFOnceControlInitValue;
		OFOnce(&once, initZeroDate);
		return (id)zeroDate;
	}

#if defined(OF_OBJFW_RUNTIME) && UINTPTR_MAX == UINT64_MAX
	value = OFFromBigEndian64(OFDoubleToRawUInt64(OFToBigEndianDouble(
	    seconds)));

	/* Almost all dates fall into this range. */
	if (value & (UINT64_C(4) << 60)) {
		id ret = [OFTaggedPointerDate
		    dateWithUInt64TimeIntervalSince1970: value];

		if (ret != nil)

			    format: (OFString *)format
{
	void *pool = objc_autoreleasePoolPush();
	const char *UTF8String = string.UTF8String;
	struct tm tm = { .tm_isdst = -1 };
	short tz = 0;

	if (OFStrPTime(UTF8String, format.UTF8String, &tm, &tz) !=
	    UTF8String + string.UTF8StringLength)
		@throw [OFInvalidFormatException exception];

	objc_autoreleasePoolPop(pool);

	return [self initWithTimeIntervalSince1970: tmAndTzToTime(&tm, tz)];
}

- (instancetype)initWithLocalDateString: (OFString *)string
				 format: (OFString *)format
{
	void *pool = objc_autoreleasePoolPush();
	const char *UTF8String = string.UTF8String;
	struct tm tm = { .tm_isdst = -1 };
	/*
	 * OFStrPTime() can never set this to SHRT_MAX, no matter what is
	 * passed to it, so this is a safe way to figure out if the date
	 * contains a time zone.
	 */
	short tz = SHRT_MAX;
	OFTimeInterval seconds;

	if (OFStrPTime(UTF8String, format.UTF8String, &tm, &tz) !=
	    UTF8String + string.UTF8StringLength)
		@throw [OFInvalidFormatException exception];

	if (tz == SHRT_MAX) {
#ifdef OF_WINDOWS
		if (_mktime64FuncPtr != NULL) {
			if ((seconds = _mktime64FuncPtr(&tm)) == -1)

	}
# endif
#endif

	pageSize = [OFSystemInfo pageSize];
	buffer = OFAllocMemory(1, pageSize);
	@try {
		if (OFStrFTime(buffer, pageSize, format.UTF8String, &tm,
		    0) == 0)
			@throw [OFOutOfRangeException exception];

		ret = [OFString stringWithUTF8String: buffer];
	} @finally {
		OFFreeMemory(buffer);
	}

	}
# endif
#endif

	pageSize = [OFSystemInfo pageSize];
	buffer = OFAllocMemory(1, pageSize);
	@try {
		if (OFStrFTime(buffer, pageSize, format.UTF8String, &tm,
		    0) == 0)
			@throw [OFOutOfRangeException exception];

		ret = [OFString stringWithUTF8String: buffer];
	} @finally {
		OFFreeMemory(buffer);
	}

#import "OFOpenItemFailedException.h"

#ifdef OF_HAVE_THREADS
# import "OFOnce.h"
# import "OFPlainMutex.h"
#endif

struct EmbeddedFile {
	OFString *path;
	const uint8_t *bytes;
	size_t size;
} *embeddedFiles = NULL;
size_t numEmbeddedFiles = 0;
#ifdef OF_HAVE_THREADS
static OFPlainMutex mutex;
static OFOnceControl mutexOnceControl = OFOnceControlInitValue;

static void
initMutex(void)
{

				    initWithStream: _stream];

			if (!_inflateStream.atEndOfStream) {
				size_t bytesRead = [_inflateStream
				    readIntoBuffer: buffer
					    length: length];

				_CRC32 = OFCRC32(_CRC32, buffer, bytesRead);
				_uncompressedSize += bytesRead;

				return bytesRead;
			}

			[_inflateStream release];
			_inflateStream = nil;

- (void)stop;
@end
#endif

static OFString *
normalizedKey(OFString *key)
{
	char *cString = OFStrDup(key.UTF8String);
	unsigned char *tmp = (unsigned char *)cString;
	bool firstLetter = true;
	OFString *ret;

	while (*tmp != '\0') {
		if (!OFASCIIIsAlpha(*tmp)) {
			firstLetter = true;

typedef struct _OFHuffmanTree {
	struct _OFHuffmanTree *_Nullable leaves[2];
	uint16_t value;
} *OFHuffmanTree;

/* Inlined for performance. */
static OF_INLINE bool
OFHuffmanTreeWalk(id _Nullable stream,
    bool (*bitReader)(id _Nullable, uint16_t *_Nonnull, uint8_t),
    OFHuffmanTree _Nonnull *_Nonnull tree, uint16_t *_Nonnull value)
{
	OFHuffmanTree iter = *tree;
	uint16_t bits;

	while (iter->value == 0xFFFF) {

	*value = iter->value;
	return true;
}

#ifdef __cplusplus
extern "C" {
#endif
extern OFHuffmanTree _Nonnull OFHuffmanTreeNew(uint8_t lengths[_Nonnull],
    uint16_t count);
extern OFHuffmanTree _Nonnull OFHuffmanTreeNewSingle(uint16_t value);

extern void OFHuffmanTreeFree(OFHuffmanTree _Nonnull tree);

#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

		tree = tree->leaves[bit];
	}

	tree->value = value;
}

OFHuffmanTree
OFHuffmanTreeNew(uint8_t lengths[], uint16_t count)
{
	OFHuffmanTree tree;
	uint16_t *lengthCount = NULL;
	uint16_t code, maxCode = 0, *nextCode = NULL;
	uint_fast8_t maxBit = 0;

	@try {

		OFFreeMemory(nextCode);
	}

	return tree;
}

OFHuffmanTree
OFHuffmanTreeNewSingle(uint16_t value)
{
	OFHuffmanTree tree = newTree();

	tree->value = value;

	return tree;
}

void
OFHuffmanTreeFree(OFHuffmanTree tree)
{
	for (uint_fast8_t i = 0; i < 2; i++)
		if OF_LIKELY (tree->leaves[i] != NULL)
			OFHuffmanTreeFree(tree->leaves[i]);

	OFFreeMemory(tree);
}

{
	OFMutableString *mutableString;

	/* FIXME: Optimize */
	if (![string hasPrefix: @" "] && ![string hasPrefix: @"\t"] &&
	    ![string hasPrefix: @"\f"] && ![string hasSuffix: @" "] &&
	    ![string hasSuffix: @"\t"] && ![string hasSuffix: @"\f"] &&
	    ![string containsString: @"\""])
		return string;

	mutableString = [[string mutableCopy] autorelease];

	[mutableString replaceOccurrencesOfString: @"\\" withString: @"\\\\"];
	[mutableString replaceOccurrencesOfString: @"\f" withString: @"\\f"];
	[mutableString replaceOccurrencesOfString: @"\r" withString: @"\\r"];
	[mutableString replaceOccurrencesOfString: @"\n" withString: @"\\n"];
	[mutableString replaceOccurrencesOfString: @"\"" withString: @"\\\""];

	[mutableString insertString: @"\"" atIndex: 0];
	[mutableString appendString: @"\""];

	[mutableString makeImmutable];

	return mutableString;
}

static OFString *
unescapeString(OFString *string)
{
	OFMutableString *mutableString;

	if (![string hasPrefix: @"\""] || ![string hasSuffix: @"\""])
		return string;

	string = [string substringWithRange: OFMakeRange(1, string.length - 2)];
	mutableString = [[string mutableCopy] autorelease];

	[mutableString replaceOccurrencesOfString: @"\\f" withString: @"\f"];
	[mutableString replaceOccurrencesOfString: @"\\r" withString: @"\r"];
	[mutableString replaceOccurrencesOfString: @"\\n" withString: @"\n"];
	[mutableString replaceOccurrencesOfString: @"\\\"" withString: @"\""];
	[mutableString replaceOccurrencesOfString: @"\\\\" withString: @"\\"];

	[mutableString makeImmutable];

	return mutableString;
}

@implementation OFINICategoryPair
- (void)dealloc

- (void)dealloc
{
	[_name release];
	[_lines release];

	[super dealloc];
}

- (void)of_parseLine: (OFString *)line

{

	if (![line hasPrefix: @";"]) {

		OFINICategoryPair *pair =
		    [[[OFINICategoryPair alloc] init] autorelease];




		OFString *key, *value;


		size_t pos;

		if ((pos = [line rangeOfString: @"="].location) == OFNotFound)


			@throw [OFInvalidFormatException exception];


		key = unescapeString([line substringToIndex: pos]
		    .stringByDeletingEnclosingWhitespaces);
		value = unescapeString([line substringFromIndex: pos + 1]

		    .stringByDeletingEnclosingWhitespaces);

		pair->_key = [key copy];









		pair->_value = [value copy];









		[_lines addObject: pair];


	} else {

		OFINICategoryComment *comment =
		    [[[OFINICategoryComment alloc] init] autorelease];




		comment->_comment = [line copy];


























































		[_lines addObject: comment];
	}

}

- (OFString *)stringValueForKey: (OFString *)key
{
	return [self stringValueForKey: key defaultValue: nil];
}

- (bool)of_writeToStream: (OFStream *)stream
		encoding: (OFStringEncoding)encoding
		   first: (bool)first
{
	if (_lines.count == 0)
		return false;


	if (first)
		[stream writeFormat: @"[%@]\r\n", _name];
	else
		[stream writeFormat: @"\r\n[%@]\r\n", _name];


	for (id line in _lines) {
		if ([line isKindOfClass: [OFINICategoryComment class]]) {
			OFINICategoryComment *comment = line;
			[stream writeFormat: @"%@\r\n", comment->_comment];
		} else if ([line isKindOfClass: [OFINICategoryPair class]]) {
			OFINICategoryPair *pair = line;

}

- (instancetype)initWithIRI: (OFIRI *)IRI encoding: (OFStringEncoding)encoding
{
	self = [super init];

	@try {
		_categories = [[OFMutableArray alloc] init];


		[self of_parseIRI: IRI encoding: encoding];
	} @catch (id e) {
		[self release];
		@throw e;
	}

			OFString *categoryName;

			if (![line hasSuffix: @"]"])
				@throw [OFInvalidFormatException exception];

			categoryName = [line substringWithRange:
			    OFMakeRange(1, line.length - 2)];



			category = [[[OFINICategory alloc]
			    of_initWithName: categoryName] autorelease];
			[_categories addObject: category];
		} else {
			if (category == nil)
				@throw [OFInvalidFormatException exception];

			[category of_parseLine: line];
		}
	}

	objc_autoreleasePoolPop(pool);
}

	    SOCK_DGRAM | SOCK_CLOEXEC, protocol)) == OFInvalidSocketHandle)
		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			      packetType: packetType
				  socket: self
				   errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	if (bind(_socket, (struct sockaddr *)&address.sockaddr,
	    address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			      packetType: packetType
				  socket: self
				   errNo: errNo];
	}

	memset(&address, 0, sizeof(address));
	address.family = OFSocketAddressFamilyIPX;
	address.length = (socklen_t)sizeof(address.sockaddr);

	if (OFGetSockName(_socket, (struct sockaddr *)&address.sockaddr,
	    &address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node

 */
+ (OFCharacterSet *)IRIFragmentAllowedCharacterSet;
@end

#ifdef __cplusplus
extern "C" {
#endif
extern bool OFIRIIsIPv6Host(OFString *host);
extern void OFIRIVerifyIsEscaped(OFString *, OFCharacterSet *, bool);

#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#import "OFMutableIRI.h"

initIRIFragmentAllowedCharacterSet(void)
{
	IRIFragmentAllowedCharacterSet =
	    [[OFIRIFragmentAllowedCharacterSet alloc] init];
}

bool
OFIRIIsIPv6Host(OFString *host)
{
	const char *UTF8String = host.UTF8String;
	bool hasColon = false;

	while (*UTF8String != '\0') {
		if (!OFASCIIIsDigit(*UTF8String) && *UTF8String != ':' &&
		    (*UTF8String < 'a' || *UTF8String > 'f') &&

{
	return (character != '%' && !_characterIsMember(_characterSet,
	    @selector(characterIsMember:), character));
}
@end

void
OFIRIVerifyIsEscaped(OFString *string, OFCharacterSet *characterSet,
    bool allowPercent)
{
	void *pool = objc_autoreleasePoolPush();

	if (allowPercent)
		characterSet = [[[OFInvertedCharacterSetWithoutPercent alloc]
		    initWithCharacterSet: characterSet] autorelease];

		self->_percentEncodedUser = [[OFString alloc]
		    initWithUTF8String: UTF8String
				length: colon - UTF8String];
		self->_percentEncodedPassword = [[OFString alloc]
		    initWithUTF8String: colon + 1
				length: length - (colon - UTF8String) - 1];

		OFIRIVerifyIsEscaped(self->_percentEncodedPassword,
		    [OFCharacterSet IRIPasswordAllowedCharacterSet], true);
	} else
		self->_percentEncodedUser = [[OFString alloc]
		    initWithUTF8String: UTF8String
				length: length];

	OFIRIVerifyIsEscaped(self->_percentEncodedUser,
	    [OFCharacterSet IRIUserAllowedCharacterSet], true);
}

static void
parseHostPort(OFIRI *self, const char *UTF8String, size_t length)
{
	OFString *portString;

			    initWithUTF8String: UTF8String
					length: length];

			UTF8String += length;
			length = 0;
		}

		OFIRIVerifyIsEscaped(self->_percentEncodedHost,
		    [OFCharacterSet IRIHostAllowedCharacterSet], true);
	}

	if (length == 0)
		return;

	if (length <= 1 || *UTF8String != ':')

	const char *fragment, *query;

	if ((fragment = memchr(UTF8String, '#', length)) != NULL) {
		*fragmentString = [OFString
		    stringWithUTF8String: fragment + 1
				  length: length - (fragment - UTF8String) - 1];

		OFIRIVerifyIsEscaped(*fragmentString,
		    [OFCharacterSet IRIQueryAllowedCharacterSet], true);

		length = fragment - UTF8String;
	}

	if ((query = memchr(UTF8String, '?', length)) != NULL) {
		*queryString = [OFString
		    stringWithUTF8String: query + 1
				  length: length - (query - UTF8String) - 1];

		OFIRIVerifyIsEscaped(*queryString,
		    [OFCharacterSet IRIFragmentAllowedCharacterSet], true);

		length = query - UTF8String;
	}

	*pathString = [OFString stringWithUTF8String: UTF8String
					      length: length];

	OFIRIVerifyIsEscaped(*pathString,
	    [OFCharacterSet IRIPathAllowedCharacterSet], true);
}

- (instancetype)initWithString: (OFString *)string
{
	self = [super init];

		    colon - UTF8String < 1 || !OFASCIIIsAlpha(UTF8String[0]))
			@throw [OFInvalidFormatException exception];

		_scheme = [[[OFString stringWithUTF8String: UTF8String
						    length: colon - UTF8String]
		    lowercaseString] copy];

		OFIRIVerifyIsEscaped(_scheme,
		    [OFCharacterSet IRISchemeAllowedCharacterSet], false);

		length -= colon - UTF8String + 1;
		UTF8String = colon + 1;

		if (length >= 2 && UTF8String[0] == '/' &&
		    UTF8String[1] == '/') {

- (OFString *)host
{
	if ([_percentEncodedHost hasPrefix: @"["] &&
	    [_percentEncodedHost hasSuffix: @"]"]) {
		OFString *host = [_percentEncodedHost substringWithRange:
		    OFMakeRange(1, _percentEncodedHost.length - 2)];

		if (!OFIRIIsIPv6Host(host))
			@throw [OFInvalidArgumentException exception];

		return host;
	}

	return _percentEncodedHost.stringByRemovingPercentEncoding;
}

	for (uint16_t i = 144; i <= 255; i++)
		lengths[i] = 9;
	for (uint16_t i = 256; i <= 279; i++)
		lengths[i] = 7;
	for (uint16_t i = 280; i <= 287; i++)
		lengths[i] = 8;

	fixedLitLenTree = OFHuffmanTreeNew(lengths, 288);

	for (uint16_t i = 0; i <= 31; i++)
		lengths[i] = 5;

	fixedDistTree = OFHuffmanTreeNew(lengths, 32);
}

+ (instancetype)streamWithStream: (OFStream *)stream
{
	return [[[self alloc] initWithStream: stream] autorelease];
}

	OFFreeMemory(_slidingWindow);

	if (_state == stateHuffmanTree) {
		OFFreeMemory(_context.huffmanTree.lengths);

		if (_context.huffmanTree.codeLenTree != NULL)
			OFHuffmanTreeFree(_context.huffmanTree.codeLenTree);
	}

	if (_state == stateHuffmanTree || _state == stateHuffmanBlock) {
		if (_context.huffman.litLenTree != fixedLitLenTree)
			OFHuffmanTreeFree(_context.huffman.litLenTree);
		if (_context.huffman.distTree != fixedDistTree)
			OFHuffmanTreeFree(_context.huffman.distTree);
	}

	[super dealloc];
}

- (size_t)lowlevelReadIntoBuffer: (void *)buffer_
			  length: (size_t)length

					CTX.receivedCount = i;
					return bytesWritten;
				}

				CTX.lengths[codeLengthsOrder[i]] = bits;
			}

			CTX.codeLenTree = OFHuffmanTreeNew(CTX.lengths, 19);
			CTX.treeIter = CTX.codeLenTree;

			OFFreeMemory(CTX.lengths);
			CTX.lengths = NULL;
			CTX.receivedCount = 0;
			CTX.value = 0xFF;
		}

		if OF_LIKELY (CTX.lengths == NULL)
			CTX.lengths = OFAllocMemory(
			    CTX.litLenCodesCount + CTX.distCodesCount + 258, 1);

		for (uint16_t i = CTX.receivedCount;
		    i < CTX.litLenCodesCount + CTX.distCodesCount + 258;) {
			uint8_t j, count;

			if OF_LIKELY (CTX.value == 0xFF) {
				if OF_UNLIKELY (!OFHuffmanTreeWalk(self,
				    tryReadBits, &CTX.treeIter, &value)) {
					CTX.receivedCount = i;
					return bytesWritten;
				}

				CTX.treeIter = CTX.codeLenTree;

			for (j = 0; j < count; j++)
				CTX.lengths[i++] = value;

			CTX.value = 0xFF;
		}

		OFHuffmanTreeFree(CTX.codeLenTree);
		CTX.codeLenTree = NULL;

		CTX.litLenTree = OFHuffmanTreeNew(CTX.lengths,
		    CTX.litLenCodesCount + 257);
		CTX.distTree = OFHuffmanTreeNew(
		    CTX.lengths + CTX.litLenCodesCount + 257,
		    CTX.distCodesCount + 1);

		OFFreeMemory(CTX.lengths);

		/*
		 * litLenTree and distTree are at the same location in

				CTX.state = huffmanStateAwaitDistance;
				CTX.treeIter = CTX.distTree;
			}

			/* Distance of length distance pair */
			if (CTX.state == huffmanStateAwaitDistance) {
				if OF_UNLIKELY (!OFHuffmanTreeWalk(self,
				    tryReadBits, &CTX.treeIter, &value))
					return bytesWritten;

				if OF_UNLIKELY (value >= numDistanceCodes)
					@throw [OFInvalidFormatException
					    exception];

					    _slidingWindowMask;
				}

				CTX.state = huffmanStateAwaitCode;
				CTX.treeIter = CTX.litLenTree;
			}

			if OF_UNLIKELY (!OFHuffmanTreeWalk(self, tryReadBits,
			    &CTX.treeIter, &value))
				return bytesWritten;

			/* End of block */
			if OF_UNLIKELY (value == 256) {
				if (CTX.litLenTree != fixedLitLenTree)
					OFHuffmanTreeFree(CTX.litLenTree);
				if (CTX.distTree != fixedDistTree)
					OFHuffmanTreeFree(CTX.distTree);

				_state = stateBlockHeader;
				goto start;
			}

			/* Literal byte */
			if OF_LIKELY (value < 256) {

#endif

+ (void)initialize
{
	if (self != [OFKernelEventObserver class])
		return;

	if (!OFSocketInit())
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
}

+ (instancetype)observer
{
	return [[[self alloc] init] autorelease];

# if !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
		if (bind(_cancelFD[0], (struct sockaddr *)&_cancelAddr,
		    sizeof(_cancelAddr)) != 0)
			@throw [OFInitializationFailedException
			    exceptionWithClass: self.class];

		cancelAddrLen = sizeof(_cancelAddr);
		if (OFGetSockName(_cancelFD[0],
		    (struct sockaddr *)&_cancelAddr, &cancelAddrLen) != 0)
			@throw [OFInitializationFailedException
			    exceptionWithClass: self.class];
# else
		for (;;) {
			uint16_t rnd = 0;
			int ret;

			while (rnd < 1024)
				rnd = (uint16_t)rand();

			_cancelAddr.sin_port = OFToBigEndian16(rnd);
			ret = bind(_cancelFD[0],
			    (struct sockaddr *)&_cancelAddr,
			    sizeof(_cancelAddr));

			if (ret == 0)
				break;

			if (OFSocketErrNo() != EADDRINUSE)
				@throw [OFInitializationFailedException
				    exceptionWithClass: self.class];
		}
# endif
#endif
	} @catch (id e) {
		[self release];

	if (_waitingTask != NULL) {
		Signal(_waitingTask, (1ul << _cancelSignal));
		_waitingTask = NULL;
	}

	Permit();
#elif defined(OF_HAVE_PIPE)

	OFEnsure(write(_cancelFD[1], "", 1) > 0);




#elif defined(OF_WII)

	OFEnsure(sendto(_cancelFD[1], "", 1, 0,
	    (struct sockaddr *)&_cancelAddr, 8) > 0);




#else

	OFEnsure(sendto(_cancelFD[1], (void *)"", 1, 0,
	    (struct sockaddr *)&_cancelAddr, sizeof(_cancelAddr)) > 0);




#endif
}
@end

+ (instancetype)archiveWithIRI: (OFIRI *)IRI mode: (OFString *)mode
{
	return [[[self alloc] initWithIRI: IRI mode: mode] autorelease];
}

+ (OFIRI *)IRIForFilePath: (OFString *)path inArchiveWithIRI: (OFIRI *)IRI
{
	return OFArchiveIRIHandlerIRIForFileInArchive(@"lha", path, IRI);
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

	if (length > _toRead)
		length = (size_t)_toRead;

	ret = [_decompressedStream readIntoBuffer: buffer length: length];

	_toRead -= ret;
	_CRC16 = OFCRC16(_CRC16, buffer, ret);

	if (_toRead == 0) {
		_atEndOfStream = true;

		if (_CRC16 != _entry.CRC16) {
			OFString *actualChecksum = [OFString stringWithFormat:
			    @"%04" @PRIX16, _CRC16];

	@try {
		[_stream writeBuffer: buffer length: length];
	} @catch (OFWriteFailedException *e) {
		OFEnsure(e.bytesWritten <= length);

		_bytesWritten += (uint64_t)e.bytesWritten;
		_CRC16 = OFCRC16(_CRC16, buffer, e.bytesWritten);

		if (e.errNo == EWOULDBLOCK || e.errNo == EAGAIN)
			return e.bytesWritten;

		@throw e;
	}

	_bytesWritten += (uint64_t)length;
	_CRC16 = OFCRC16(_CRC16, buffer, length);

	return length;
}

- (bool)lowlevelIsAtEndOfStream
{
	if (_stream == nil)

	if (headerSize > UINT16_MAX)
		@throw [OFOutOfRangeException exception];

	/* Now fill in the size and CRC16 for the entire header */
	tmp16 = OFToLittleEndian16(headerSize);
	memcpy([data mutableItemAtIndex: 0], &tmp16, sizeof(tmp16));

	tmp16 = OFCRC16(0, data.items, data.count);
	tmp16 = OFToLittleEndian16(tmp16);
	memcpy([data mutableItemAtIndex: 27], &tmp16, sizeof(tmp16));

	[stream writeData: data];

	objc_autoreleasePoolPop(pool);
}

{
	if (_stream != nil)
		[self close];

	OFFreeMemory(_slidingWindow);

	if (_codeLenTree != NULL)
		OFHuffmanTreeFree(_codeLenTree);
	if (_litLenTree != NULL)
		OFHuffmanTreeFree(_litLenTree);
	if (_distTree != NULL)
		OFHuffmanTreeFree(_distTree);

	OFFreeMemory(_codesLengths);

	[super dealloc];
}

- (size_t)lowlevelReadIntoBuffer: (void *)buffer_

			if OF_UNLIKELY (bits == 7) {
				_currentIsExtendedLength = true;
				continue;
			} else
				_codesReceived++;
		}

		_codeLenTree = OFHuffmanTreeNew(_codesLengths, _codesCount);
		OFFreeMemory(_codesLengths);
		_codesLengths = NULL;

		_state = stateLitLenCodesCount;
		goto start;
	case stateCodeLenTreeSingle:
		if OF_UNLIKELY (!tryReadBits(self, &bits, 5))
			return bytesWritten;

		_codeLenTree = OFHuffmanTreeNewSingle(bits);

		_state = stateLitLenCodesCount;
		goto start;
	case stateLitLenCodesCount:
		if OF_UNLIKELY (!tryReadBits(self, &bits, 9))
			return bytesWritten;

		if OF_UNLIKELY (bits > 510)
			@throw [OFInvalidFormatException exception];

		if OF_UNLIKELY (bits == 0) {
			OFHuffmanTreeFree(_codeLenTree);
			_codeLenTree = NULL;

			_state = stateLitLenTreeSingle;
			goto start;
		}

		_codesCount = bits;

				for (uint_fast16_t j = 0; j < skipCount; j++)
					_codesLengths[_codesReceived++] = 0;

				_skip = false;
				continue;
			}

			if (!OFHuffmanTreeWalk(self, tryReadBits, &_treeIter,
			    &value))
				return bytesWritten;

			_treeIter = _codeLenTree;

			if (value < 3) {
				_codesLengths[_codesReceived] = value;
				_skip = true;
			} else
				_codesLengths[_codesReceived++] = value - 2;
		}

		_litLenTree = OFHuffmanTreeNew(_codesLengths, _codesCount);
		OFFreeMemory(_codesLengths);
		_codesLengths = NULL;

		OFHuffmanTreeFree(_codeLenTree);
		_codeLenTree = NULL;

		_state = stateDistCodesCount;
		goto start;
	case stateLitLenTreeSingle:
		if OF_UNLIKELY (!tryReadBits(self, &bits, 9))
			return bytesWritten;

		_litLenTree = OFHuffmanTreeNewSingle(bits);

		_state = stateDistCodesCount;
		goto start;
	case stateDistCodesCount:
		if OF_UNLIKELY (!tryReadBits(self, &bits, _distanceBits))
			return bytesWritten;

			if OF_UNLIKELY (bits == 7) {
				_currentIsExtendedLength = true;
				continue;
			} else
				_codesReceived++;
		}

		_distTree = OFHuffmanTreeNew(_codesLengths, _codesCount);
		OFFreeMemory(_codesLengths);
		_codesLengths = NULL;

		_treeIter = _litLenTree;
		_state = stateBlockLitLen;
		goto start;
	case stateDistTreeSingle:
		if OF_UNLIKELY (!tryReadBits(self, &bits, _distanceBits))
			return bytesWritten;

		_distTree = OFHuffmanTreeNewSingle(bits);

		_treeIter = _litLenTree;
		_state = stateBlockLitLen;
		goto start;
	case stateBlockLitLen:
		if OF_UNLIKELY (_symbolsLeft == 0) {
			OFHuffmanTreeFree(_litLenTree);
			OFHuffmanTreeFree(_distTree);
			_litLenTree = _distTree = NULL;

			_state = stateBlockHeader;

			/*
			 * We must return here, as there is no indication
			 * whether this was the last block. Whoever called this

			return bytesWritten;
		}

		if OF_UNLIKELY (length == 0)
			return bytesWritten;

		if OF_UNLIKELY (!OFHuffmanTreeWalk(self, tryReadBits,
		    &_treeIter, &value))
			return bytesWritten;

		if OF_LIKELY (value < 256) {
			buffer[bytesWritten++] = value;
			length--;

			_length = value - 253;
			_treeIter = _distTree;
			_state = stateBlockDistLength;
		}

		goto start;
	case stateBlockDistLength:
		if OF_UNLIKELY (!OFHuffmanTreeWalk(self, tryReadBits,
		    &_treeIter, &value))
			return bytesWritten;

		_distance = value;

		_state = (value < 2
		    ? stateBlockLenDistPair : stateBlockDistLengthExtra);

}

#ifndef OF_AMIGAOS
static void
parseLocale(char *locale, OFStringEncoding *encoding,
    OFString **languageCode, OFString **countryCode)
{
	locale = OFStrDup(locale);

	@try {
		OFStringEncoding enc = OFStringEncodingASCII;
		char *tmp;

		/* We don't care for extras behind the @ */
		if ((tmp = strrchr(locale, '@')) != NULL)

{
	unsigned long hash;

	OFHashInit(&hash);

	for (uint_fast8_t i = 0; i < 4; i++)
		for (uint_fast8_t j = 0; j < 4; j++)
			OFHashAddHash(&hash, OFFloatToRawUInt32(_values[i][j]));


	OFHashFinalize(&hash);

	return hash;
}

- (void)multiplyWithMatrix: (OFMatrix4x4 *)matrix

{
	void *pool = objc_autoreleasePoolPush();
	OFString *old = _scheme;

	if (scheme.length < 1 || !OFASCIIIsAlpha(*scheme.UTF8String))
		@throw [OFInvalidFormatException exception];

	OFIRIVerifyIsEscaped(scheme,
	    [OFCharacterSet IRISchemeAllowedCharacterSet], false);

	_scheme = [scheme.lowercaseString copy];

	[old release];

	objc_autoreleasePoolPop(pool);
}

- (void)setHost: (OFString *)host
{
	void *pool = objc_autoreleasePoolPush();
	OFString *old = _percentEncodedHost;

	if (OFIRIIsIPv6Host(host))
		_percentEncodedHost = [[OFString alloc]
		    initWithFormat: @"[%@]", host];
	else
		_percentEncodedHost = [[host
		    stringByAddingPercentEncodingWithAllowedCharacters:
		    [OFCharacterSet IRIHostAllowedCharacterSet]] copy];

	[old release];

	objc_autoreleasePoolPop(pool);
}

- (void)setPercentEncodedHost: (OFString *)percentEncodedHost
{
	OFString *old;

	if ([percentEncodedHost hasPrefix: @"["] &&
	    [percentEncodedHost hasSuffix: @"]"]) {
		if (!OFIRIIsIPv6Host([percentEncodedHost substringWithRange:
		    OFMakeRange(1, percentEncodedHost.length - 2)]))
			@throw [OFInvalidFormatException exception];
	} else if (percentEncodedHost != nil)
		OFIRIVerifyIsEscaped(percentEncodedHost,
		    [OFCharacterSet IRIHostAllowedCharacterSet], true);

	old = _percentEncodedHost;
	_percentEncodedHost = [percentEncodedHost copy];
	[old release];
}

}

- (void)setPercentEncodedUser: (OFString *)percentEncodedUser
{
	OFString *old;

	if (percentEncodedUser != nil)
		OFIRIVerifyIsEscaped(percentEncodedUser,
		    [OFCharacterSet IRIUserAllowedCharacterSet], true);

	old = _percentEncodedUser;
	_percentEncodedUser = [percentEncodedUser copy];
	[old release];
}

}

- (void)setPercentEncodedPassword: (OFString *)percentEncodedPassword
{
	OFString *old;

	if (percentEncodedPassword != nil)
		OFIRIVerifyIsEscaped(percentEncodedPassword,
		    [OFCharacterSet IRIPasswordAllowedCharacterSet], true);

	old = _percentEncodedPassword;
	_percentEncodedPassword = [percentEncodedPassword copy];
	[old release];
}

	objc_autoreleasePoolPop(pool);
}

- (void)setPercentEncodedPath: (OFString *)percentEncodedPath
{
	OFString *old;

	OFIRIVerifyIsEscaped(percentEncodedPath,
	    [OFCharacterSet IRIPathAllowedCharacterSet], true);

	old = _percentEncodedPath;
	_percentEncodedPath = [percentEncodedPath copy];
	[old release];
}

}

- (void)setPercentEncodedQuery: (OFString *)percentEncodedQuery
{
	OFString *old;

	if (percentEncodedQuery != nil)
		OFIRIVerifyIsEscaped(percentEncodedQuery,
		    [OFCharacterSet IRIQueryAllowedCharacterSet], true);

	old = _percentEncodedQuery;
	_percentEncodedQuery = [percentEncodedQuery copy];
	[old release];
}

}

- (void)setPercentEncodedFragment: (OFString *)percentEncodedFragment
{
	OFString *old;

	if (percentEncodedFragment != nil)
		OFIRIVerifyIsEscaped(percentEncodedFragment,
		    [OFCharacterSet IRIFragmentAllowedCharacterSet], true);

	old = _percentEncodedFragment;
	_percentEncodedFragment = [percentEncodedFragment copy];
	[old release];
}

{
	char *UTF8String;
	int UTF8StringLength;

	if (format == nil)
		@throw [OFInvalidArgumentException exception];

	if ((UTF8StringLength = OFVASPrintF(&UTF8String, format.UTF8String,
	    arguments)) == -1)
		@throw [OFInvalidFormatException exception];

	@try {
		[self appendUTF8String: UTF8String length: UTF8StringLength];
	} @finally {
		free(UTF8String);
	}
}

#ifdef OF_HAVE_UNICODE_TABLES
- (void)uppercase
{
	[self of_convertWithWordStartTable: OFUnicodeUppercaseTable
			   wordMiddleTable: OFUnicodeUppercaseTable
			wordStartTableSize: OFUnicodeUppercaseTableSize
		       wordMiddleTableSize: OFUnicodeUppercaseTableSize];
}

- (void)lowercase
{
	[self of_convertWithWordStartTable: OFUnicodeLowercaseTable
			   wordMiddleTable: OFUnicodeLowercaseTable
			wordStartTableSize: OFUnicodeLowercaseTableSize
		       wordMiddleTableSize: OFUnicodeLowercaseTableSize];
}

- (void)capitalize
{
	[self of_convertWithWordStartTable: OFUnicodeTitlecaseTable
			   wordMiddleTable: OFUnicodeLowercaseTable
			wordStartTableSize: OFUnicodeTitlecaseTableSize
		       wordMiddleTableSize: OFUnicodeLowercaseTableSize];
}
#else
- (void)uppercase
{
	convert(self, OFASCIIToUpper, OFASCIIToUpper);
}

			table = startTable;
			tableSize = middleTableSize;
		} else {
			table = middleTable;
			tableSize = middleTableSize;
		}

		cLen = OFUTF8StringDecode(_s->cString + i,
		    _s->cStringLength - i, &c);

		if (cLen <= 0 || c > 0x10FFFF) {
			OFFreeMemory(unicodeString);
			@throw [OFInvalidEncodingException exception];
		}

	}

	j = 0;

	for (i = 0; i < unicodeLen; i++) {
		size_t d;

		if ((d = OFUTF8StringEncode(unicodeString[i],
		    newCString + j)) == 0) {
			OFFreeMemory(unicodeString);
			OFFreeMemory(newCString);
			@throw [OFInvalidEncodingException exception];
		}
		j += d;
	}

{
	char buffer[4];
	OFUnichar c;
	size_t lenNew;
	ssize_t lenOld;

	if (_s->isUTF8)
		idx = OFUTF8StringIndexToPosition(_s->cString, idx,
		    _s->cStringLength);

	if (idx >= _s->cStringLength)
		@throw [OFOutOfRangeException exception];

	/* Shortcut if old and new character both are ASCII */
	if (character < 0x80 && !(_s->cString[idx] & 0x80)) {
		_s->hasHash = false;
		_s->cString[idx] = character;
		return;
	}

	if ((lenNew = OFUTF8StringEncode(character, buffer)) == 0)
		@throw [OFInvalidEncodingException exception];

	if ((lenOld = OFUTF8StringDecode(_s->cString + idx,
	    _s->cStringLength - idx, &c)) <= 0)
		@throw [OFInvalidEncodingException exception];

	_s->hasHash = false;

	if (lenNew == (size_t)lenOld)
		memcpy(_s->cString + idx, buffer, lenNew);

	if (UTF8StringLength >= 3 &&
	    memcmp(UTF8String, "\xEF\xBB\xBF", 3) == 0) {
		UTF8String += 3;
		UTF8StringLength -= 3;
	}

	switch (OFUTF8StringCheck(UTF8String, UTF8StringLength, &length)) {
	case 1:
		_s->isUTF8 = true;
		break;
	case -1:
		@throw [OFInvalidEncodingException exception];
	}

	if (UTF8StringLength >= 3 &&
	    memcmp(UTF8String, "\xEF\xBB\xBF", 3) == 0) {
		UTF8String += 3;
		UTF8StringLength -= 3;
	}

	switch (OFUTF8StringCheck(UTF8String, UTF8StringLength, &length)) {
	case 1:
		_s->isUTF8 = true;
		break;
	case -1:
		@throw [OFInvalidEncodingException exception];
	}

		objc_autoreleasePoolPop(pool);
	}
}

- (void)appendString: (OFString *)string
{

	size_t UTF8StringLength;

	if (string == nil)
		@throw [OFInvalidArgumentException exception];


	UTF8StringLength = string.UTF8StringLength;

	_s->hasHash = false;
	_s->cString = OFResizeMemory(_s->cString,
	    _s->cStringLength + UTF8StringLength + 1, 1);
	memcpy(_s->cString + _s->cStringLength, string.UTF8String,
	    UTF8StringLength);

	_s->cStringLength += UTF8StringLength;
	_s->length += string.length;

	_s->cString[_s->cStringLength] = 0;

	if ([string isKindOfClass: [OFUTF8String class]] ||
	    [string isKindOfClass: [OFMutableUTF8String class]]) {
		if (((OFMutableUTF8String *)string)->_s->isUTF8)
			_s->isUTF8 = true;
	} else



		_s->isUTF8 = true;





}

- (void)appendCharacters: (const OFUnichar *)characters length: (size_t)length
{
	char *tmp = OFAllocMemory((length * 4) + 1, 1);

	@try {
		size_t j = 0;
		bool isUTF8 = false;

		for (size_t i = 0; i < length; i++) {
			size_t len = OFUTF8StringEncode(characters[i], tmp + j);


			if (len == 0)
				@throw [OFInvalidEncodingException exception];

			if (len > 1)
				isUTF8 = true;

{
	char *UTF8String;
	int UTF8StringLength;

	if (format == nil)
		@throw [OFInvalidArgumentException exception];

	if ((UTF8StringLength = OFVASPrintF(&UTF8String, format.UTF8String,
	    arguments)) == -1)
		@throw [OFInvalidFormatException exception];

	@try {
		[self appendUTF8String: UTF8String length: UTF8StringLength];
	} @finally {
		free(UTF8String);
	}
}

- (void)insertString: (OFString *)string atIndex: (size_t)idx
{

	size_t newCStringLength;

	if (idx > _s->length)
		@throw [OFOutOfRangeException exception];

	if (_s->isUTF8)
		idx = OFUTF8StringIndexToPosition(_s->cString, idx,
		    _s->cStringLength);




	newCStringLength = _s->cStringLength + string.UTF8StringLength;
	_s->hasHash = false;
	_s->cString = OFResizeMemory(_s->cString, newCStringLength + 1, 1);

	memmove(_s->cString + idx + string.UTF8StringLength,
	    _s->cString + idx, _s->cStringLength - idx);
	memcpy(_s->cString + idx, string.UTF8String,
	    string.UTF8StringLength);
	_s->cString[newCStringLength] = '\0';

	_s->cStringLength = newCStringLength;
	_s->length += string.length;

	if ([string isKindOfClass: [OFUTF8String class]] ||
	    [string isKindOfClass: [OFMutableUTF8String class]]) {
		if (((OFMutableUTF8String *)string)->_s->isUTF8)
			_s->isUTF8 = true;
	} else



		_s->isUTF8 = true;





}

- (void)deleteCharactersInRange: (OFRange)range
{
	size_t start = range.location;
	size_t end = range.location + range.length;

	if (range.length > SIZE_MAX - range.location || end > _s->length)
		@throw [OFOutOfRangeException exception];

	if (_s->isUTF8) {
		start = OFUTF8StringIndexToPosition(_s->cString, start,
		    _s->cStringLength);
		end = OFUTF8StringIndexToPosition(_s->cString, end,
		    _s->cStringLength);
	}

	memmove(_s->cString + start, _s->cString + end,
	    _s->cStringLength - end);
	_s->hasHash = false;
	_s->length -= range.length;

- (void)replaceCharactersInRange: (OFRange)range
		      withString: (OFString *)replacement
{
	size_t start = range.location;
	size_t end = range.location + range.length;
	size_t newCStringLength, newLength;



	if (replacement == nil)
		@throw [OFInvalidArgumentException exception];

	if (range.length > SIZE_MAX - range.location || end > _s->length)
		@throw [OFOutOfRangeException exception];

	newLength = _s->length - range.length + replacement.length;

	if (_s->isUTF8) {
		start = OFUTF8StringIndexToPosition(_s->cString, start,
		    _s->cStringLength);
		end = OFUTF8StringIndexToPosition(_s->cString, end,
		    _s->cStringLength);
	}




	newCStringLength = _s->cStringLength - (end - start) +
	    replacement.UTF8StringLength;
	_s->hasHash = false;

	/*
	 * If the new string is bigger, we need to resize it first so we can
	 * memmove() the rest of the string to the end.
	 *
	 * We must not resize the string if the new string is smaller, because
	 * then we can't memmove() the rest of the string forward as the rest is
	 * lost due to the resize!
	 */
	if (newCStringLength > _s->cStringLength)
		_s->cString = OFResizeMemory(_s->cString, newCStringLength + 1,
		    1);

	memmove(_s->cString + start + replacement.UTF8StringLength,
	    _s->cString + end, _s->cStringLength - end);
	memcpy(_s->cString + start, replacement.UTF8String,
	    replacement.UTF8StringLength);
	_s->cString[newCStringLength] = '\0';

	/*
	 * If the new string is smaller, we can safely resize it now as we're
	 * done with memmove().
	 */
	if (newCStringLength < _s->cStringLength)
		_s->cString = OFResizeMemory(_s->cString, newCStringLength + 1,
		    1);

	_s->cStringLength = newCStringLength;
	_s->length = newLength;

	if ([replacement isKindOfClass: [OFUTF8String class]] ||
	    [replacement isKindOfClass: [OFMutableUTF8String class]]) {
		if (((OFMutableUTF8String *)replacement)->_s->isUTF8)
			_s->isUTF8 = true;
	} else



		_s->isUTF8 = true;





}

- (void)replaceOccurrencesOfString: (OFString *)string
			withString: (OFString *)replacement
			   options: (int)options
			     range: (OFRange)range
{

		@throw [OFInvalidArgumentException exception];

	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length > self.length)
		@throw [OFOutOfRangeException exception];

	if (_s->isUTF8) {
		range.location = OFUTF8StringIndexToPosition(_s->cString,
		    range.location, _s->cStringLength);
		range.length = OFUTF8StringIndexToPosition(
		    _s->cString + range.location, range.length,
		    _s->cStringLength - range.location);
	}

	if (string.UTF8StringLength > range.length)
		return;

	_s->cStringLength = newCStringLength;
	_s->length = newLength;

	if ([replacement isKindOfClass: [OFUTF8String class]] ||
	    [replacement isKindOfClass: [OFMutableUTF8String class]]) {
		if (((OFMutableUTF8String *)replacement)->_s->isUTF8)
			_s->isUTF8 = true;
	} else



		_s->isUTF8 = true;





}

- (void)deleteLeadingWhitespaces
{
	size_t i;

	for (i = 0; i < _s->cStringLength; i++)

#import "OFKeyValueCoding.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFObject_KeyValueCoding_reference;
#ifdef __cplusplus
}
#endif

@interface OFObject (KeyValueCoding) <OFKeyValueCoding>
@end

    const void *_Nonnull key, id _Nullable value,
    objc_associationPolicy policy);
extern id _Nullable objc_getAssociatedObject(id _Nonnull object,
    const void *_Nonnull key);
extern void objc_removeAssociatedObjects(id _Nonnull object);
# endif
#endif













extern id OFAllocObject(Class class_, size_t extraSize, size_t extraAlignment,
    void *_Nullable *_Nullable extra);























extern void OF_NO_RETURN_FUNC OFMethodNotFound(id self, SEL _cmd);

/**
 * @brief Initializes the specified hash.
 *
 * @param hash A pointer to the hash to initialize
 */

const char *
_NSPrintForDebugger(id object)
{
	return [[object description] cStringWithEncoding: [OFLocale encoding]];
}

/* References for static linking */
void
_references_to_categories_of_OFObject(void)
{
	_OFObject_KeyValueCoding_reference = 1;
}

@implementation OFObject
+ (void)load

    (!defined(OF_HAVE_PTHREADS) && !defined(OF_WINDOWS) && !defined(OF_AMIGAOS))
# error No conditions available!
#endif

/* For OFTimeInterval */
#import "OFObject.h"
#import "OFPlainMutex.h"



#if defined(OF_HAVE_PTHREADS)
# include <pthread.h>
typedef pthread_cond_t OFPlainCondition;
#elif defined(OF_WINDOWS)
# include <windows.h>
typedef struct {
	HANDLE event;
	volatile int count;
} OFPlainCondition;
#elif defined(OF_AMIGAOS)
# include <exec/tasks.h>
typedef struct {
	struct OFPlainConditionWaitingTask {
		struct Task *task;
		unsigned char sigBit;
		struct OFPlainConditionWaitingTask *next;
	} *waitingTasks;
} OFPlainCondition;
#endif

#ifdef __cplusplus
extern "C" {
#endif









extern int OFPlainConditionNew(OFPlainCondition *condition);







extern int OFPlainConditionSignal(OFPlainCondition *condition);








extern int OFPlainConditionBroadcast(OFPlainCondition *condition);








extern int OFPlainConditionWait(OFPlainCondition *condition,
    OFPlainMutex *mutex);










extern int OFPlainConditionTimedWait(OFPlainCondition *condition,
    OFPlainMutex *mutex, OFTimeInterval timeout);

#if defined(OF_AMIGAOS) || defined(DOXYGEN)









extern int OFPlainConditionWaitOrExecSignal(OFPlainCondition *condition,
    OFPlainMutex *mutex, ULONG *signalMask);











extern int OFPlainConditionTimedWaitOrExecSignal(OFPlainCondition *condition,
    OFPlainMutex *mutex, OFTimeInterval timeout, ULONG *signalMask);
#endif







extern int OFPlainConditionFree(OFPlainCondition *condition);
#ifdef __cplusplus
}
#endif

#if !defined(OF_HAVE_THREADS) || \
    (!defined(OF_HAVE_PTHREADS) && !defined(OF_WINDOWS) && !defined(OF_AMIGAOS))
# error No mutexes available!
#endif

#import "macros.h"



#if defined(OF_HAVE_PTHREADS)
# include <pthread.h>
typedef pthread_mutex_t OFPlainMutex;
#elif defined(OF_WINDOWS)
# include <windows.h>
typedef CRITICAL_SECTION OFPlainMutex;

	OFTLSKey count;
} OFPlainRecursiveMutex;
#endif

#ifdef __cplusplus
extern "C" {
#endif









extern int OFPlainMutexNew(OFPlainMutex *mutex);







extern int OFPlainMutexLock(OFPlainMutex *mutex);







extern int OFPlainMutexTryLock(OFPlainMutex *mutex);







extern int OFPlainMutexUnlock(OFPlainMutex *mutex);







extern int OFPlainMutexFree(OFPlainMutex *mutex);












extern int OFPlainRecursiveMutexNew(OFPlainRecursiveMutex *rmutex);







extern int OFPlainRecursiveMutexLock(OFPlainRecursiveMutex *rmutex);







extern int OFPlainRecursiveMutexTryLock(OFPlainRecursiveMutex *rmutex);







extern int OFPlainRecursiveMutexUnlock(OFPlainRecursiveMutex *rmutex);







extern int OFPlainRecursiveMutexFree(OFPlainRecursiveMutex *rmutex);
#ifdef __cplusplus
}
#endif

/* Spinlocks are inlined for performance. */





static OF_INLINE void
OFYieldThread(void)
{
#if defined(OF_HAVE_SCHED_YIELD)
	sched_yield();
#elif defined(OF_WINDOWS)
	Sleep(0);
#endif
}







static OF_INLINE int
OFSpinlockNew(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
	*spinlock = 0;
	return 0;
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
	return pthread_spin_init(spinlock, 0);
#else
	return OFPlainMutexNew(spinlock);
#endif
}







static OF_INLINE int
OFSpinlockTryLock(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
	if (OFAtomicIntCompareAndSwap(spinlock, 0, 1)) {
		OFAcquireMemoryBarrier();
		return 0;
	}

	return EBUSY;
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
	return pthread_spin_trylock(spinlock);
#else
	return OFPlainMutexTryLock(spinlock);
#endif
}







static OF_INLINE int
OFSpinlockLock(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
	size_t i;

	for (i = 0; i < 10; i++)

#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
	return pthread_spin_lock(spinlock);
#else
	return OFPlainMutexLock(spinlock);
#endif
}







static OF_INLINE int
OFSpinlockUnlock(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
	bool ret = OFAtomicIntCompareAndSwap(spinlock, 1, 0);

	OFReleaseMemoryBarrier();

	return (ret ? 0 : EINVAL);
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
	return pthread_spin_unlock(spinlock);
#else
	return OFPlainMutexUnlock(spinlock);
#endif
}







static OF_INLINE int
OFSpinlockFree(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)


	return 0;
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
	return pthread_spin_destroy(spinlock);
#else
	return OFPlainMutexFree(spinlock);
#endif
}

#if !defined(OF_HAVE_THREADS) || \
    (!defined(OF_HAVE_PTHREADS) && !defined(OF_WINDOWS) && !defined(OF_AMIGAOS))
# error No threads available!
#endif

#import "OFObject.h"



#if defined(OF_HAVE_PTHREADS)
# include <pthread.h>
typedef pthread_t OFPlainThread;
#elif defined(OF_WINDOWS)
# include <windows.h>
typedef HANDLE OFPlainThread;

#endif

typedef struct {
	float priority;
	size_t stackSize;
} OFPlainThreadAttributes;

#if defined(OF_HAVE_PTHREADS)





static OF_INLINE OFPlainThread
OFCurrentPlainThread(void)
{
	return pthread_self();
}







static OF_INLINE bool
OFPlainThreadIsCurrent(OFPlainThread thread)
{
	return pthread_equal(thread, pthread_self());
}
#elif defined(OF_WINDOWS)
static OF_INLINE OFPlainThread

extern OFPlainThread OFCurrentPlainThread(void);
extern bool OFPlainThreadIsCurrent(OFPlainThread);
#endif

#ifdef __cplusplus
extern "C" {
#endif






extern int OFPlainThreadAttributesInit(OFPlainThreadAttributes *attr);














extern int OFPlainThreadNew(OFPlainThread *thread, const char *name,
    void (*function)(id), id object, const OFPlainThreadAttributes *attr);






extern void OFSetThreadName(const char *name);







extern int OFPlainThreadJoin(OFPlainThread thread);







extern int OFPlainThreadDetach(OFPlainThread thread);
#ifdef __cplusplus
}
#endif

	if (_socket != OFInvalidSocketHandle)
		@throw [OFAlreadyOpenException exceptionWithObject: self];

	if ((_socket = socket(address->sockaddr.ipx.sipx_family,
	    SOCK_SEQPACKET | SOCK_CLOEXEC, NSPROTO_SPX)) ==
	    OFInvalidSocketHandle) {
		*errNo = OFSocketErrNo();
		return false;
	}

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	return true;
}

- (bool)of_connectSocketToAddress: (const OFSocketAddress *)address
			    errNo: (int *)errNo
{
	if (_socket == OFInvalidSocketHandle)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (connect(_socket, (struct sockaddr *)&address->sockaddr,
	    address->length) != 0) {
		*errNo = OFSocketErrNo();
		return false;
	}

	return true;
}

- (void)of_closeSocket

	    OFInvalidSocketHandle)
		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			      packetType: SPXPacketType
				  socket: self
				   errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	if (bind(_socket, (struct sockaddr *)&address.sockaddr,
	    address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			      packetType: SPXPacketType
				  socket: self
				   errNo: errNo];
	}

	memset(&address, 0, sizeof(address));
	address.family = OFSocketAddressFamilyIPX;
	address.length = (socklen_t)sizeof(address.sockaddr);

	if (OFGetSockName(_socket, (struct sockaddr *)&address.sockaddr,
	    &address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node

	if (_socket != OFInvalidSocketHandle)
		@throw [OFAlreadyOpenException exceptionWithObject: self];

	if ((_socket = socket(address->sockaddr.ipx.sipx_family,
	    SOCK_STREAM | SOCK_CLOEXEC, NSPROTO_SPX)) ==
	    OFInvalidSocketHandle) {
		*errNo = OFSocketErrNo();
		return false;
	}

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	return true;
}

- (bool)of_connectSocketToAddress: (const OFSocketAddress *)address
			    errNo: (int *)errNo
{
	if (_socket == OFInvalidSocketHandle)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (connect(_socket, (struct sockaddr *)&address->sockaddr,
	    address->length) != 0) {
		*errNo = OFSocketErrNo();
		return false;
	}

	return true;
}

- (void)of_closeSocket

	    SOCK_STREAM | SOCK_CLOEXEC, NSPROTO_SPX)) == OFInvalidSocketHandle)
		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			      packetType: SPXPacketType
				  socket: self
				   errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	if (bind(_socket, (struct sockaddr *)&address.sockaddr,
	    address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node
				    port: port
			      packetType: SPXPacketType
				  socket: self
				   errNo: errNo];
	}

	memset(&address, 0, sizeof(address));
	address.family = OFSocketAddressFamilyIPX;
	address.length = (socklen_t)sizeof(address.sockaddr);

	if (OFGetSockName(_socket, (struct sockaddr *)&address.sockaddr,
	    &address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPXSocketFailedException
		    exceptionWithNetwork: network
				    node: node

	/** @brief Whether data may be stored in swappable memory. */
	bool allowsSwappableMemory;
} OFScryptParameters;

#ifdef __cplusplus
extern "C" {
#endif

extern void OFSalsa20_8Core(uint32_t buffer[_Nonnull 16]);
extern void OFScryptBlockMix(uint32_t *output, const uint32_t *input,
    size_t blockSize);
extern void OFScryptROMix(uint32_t *buffer, size_t blockSize,
    size_t costFactor, uint32_t *tmp);

/**
 * @brief Derives a key from a password and a salt using scrypt.
 *
 * @param parameters The parameters to use
 */

#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

#import "OFScrypt.h"
#import "OFPBKDF2.h"

void
OFSalsa20_8Core(uint32_t buffer[16])
{
	uint32_t tmp[16];

	for (uint_fast8_t i = 0; i < 16; i++)
		tmp[i] = OFToLittleEndian32(buffer[i]);

	for (uint_fast8_t i = 0; i < 8; i += 2) {

		buffer[i] = OFToLittleEndian32(OFFromLittleEndian32(buffer[i]) +
		    tmp[i]);

	OFZeroMemory(tmp, sizeof(tmp));
}

void
OFScryptBlockMix(uint32_t *output, const uint32_t *input, size_t blockSize)
{
	uint32_t tmp[16];

	/* Check defined here and executed in OFScrypt() */
#define OVERFLOW_CHECK_1					\
	if (param.blockSize > SIZE_MAX / 2 ||			\
	    2 * param.blockSize - 1 > SIZE_MAX / 16)		\
		@throw [OFOutOfRangeException exception];

	memcpy(tmp, input + (2 * blockSize - 1) * 16, 64);

	for (size_t i = 0; i < 2 * blockSize; i++) {
		for (size_t j = 0; j < 16; j++)
			tmp[j] ^= input[i * 16 + j];

		OFSalsa20_8Core(tmp);

		/*
		 * Even indices are stored in the first half and odd ones in
		 * the second.
		 */
		memcpy(output + ((i / 2) + (i & 1) * blockSize) * 16, tmp, 64);
	}

	OFZeroMemory(tmp, sizeof(tmp));
}

void
OFScryptROMix(uint32_t *buffer, size_t blockSize, size_t costFactor,
    uint32_t *tmp)
{
	/* Check defined here and executed in OFScrypt() */
#define OVERFLOW_CHECK_2						\
	if (param.blockSize > SIZE_MAX / 128 / param.costFactor)	\
		@throw [OFOutOfRangeException exception];

	uint32_t *tmp2 = tmp + 32 * blockSize;

	memcpy(tmp, buffer, 128 * blockSize);

	for (size_t i = 0; i < costFactor; i++) {
		memcpy(tmp2 + i * 32 * blockSize, tmp, 128 * blockSize);
		OFScryptBlockMix(tmp, tmp2 + i * 32 * blockSize, blockSize);
	}

	for (size_t i = 0; i < costFactor; i++) {
		uint32_t j = OFFromLittleEndian32(
		    tmp[(2 * blockSize - 1) * 16]) & (costFactor - 1);

		for (size_t k = 0; k < 32 * blockSize; k++)
			tmp[k] ^= tmp2[j * 32 * blockSize + k];

		OFScryptBlockMix(buffer, tmp, blockSize);

		if (i < costFactor - 1)
			memcpy(tmp, buffer, 128 * blockSize);
	}
}

void

			.key                   = (unsigned char *)bufferItems,
			.keyLength             = param.parallelization * 128 *
			                         param.blockSize,
			.allowsSwappableMemory = param.allowsSwappableMemory
		});

		for (size_t i = 0; i < param.parallelization; i++)
			OFScryptROMix(bufferItems + i * 32 * param.blockSize,
			    param.blockSize, param.costFactor, tmpItems);

		OFPBKDF2((OFPBKDF2Parameters){
			.HMAC                  = HMAC,
			.iterations            = 1,
			.salt                  = (unsigned char *)bufferItems,
			.saltLength            = param.parallelization * 128 *

	events = select(_maxFD + 1, &readFDs, &writeFDs, NULL,
	    (timeInterval != -1 ? &timeout : NULL));
#endif

	if (events < 0)
		@throw [OFObserveKernelEventsFailedException
		    exceptionWithObserver: self
				    errNo: OFSocketErrNo()];

#ifdef OF_AMIGAOS
	if (execSignalMask != 0 &&
	    [_delegate respondsToSelector: @selector(execSignalWasReceived:)])
		[_delegate execSignalWasReceived: execSignalMask];
#else
	if (FD_ISSET(_cancelFD[0], &readFDs)) {

@synthesize listening = _listening, delegate = _delegate;

+ (void)initialize
{
	if (self != [OFSequencedPacketSocket class])
		return;

	if (!OFSocketInit())
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
}

+ (instancetype)socket
{
	return [[[self alloc] init] autorelease];

- (int)of_socketError
{
	int errNo;
	socklen_t len = sizeof(errNo);

	if (getsockopt(_socket, SOL_SOCKET, SO_ERROR, (char *)&errNo,
	    &len) != 0)
		return OFSocketErrNo();

	return errNo;
}
#endif

- (id)copy
{

	_canBlock = canBlock;
#elif defined(OF_WINDOWS)
	u_long v = !canBlock;

	if (ioctlsocket(_socket, FIONBIO, &v) == SOCKET_ERROR)
		@throw [OFSetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];

	_canBlock = canBlock;
#else
	OF_UNRECOGNIZED_SELECTOR
#endif
}

- (size_t)receiveIntoBuffer: (void *)buffer length: (size_t)length
{
	ssize_t ret;

	if (_socket == OFInvalidSocketHandle)
		@throw [OFNotOpenException exceptionWithObject: self];

#ifndef OF_WINDOWS
	if ((ret = recv(_socket, buffer, length, 0)) < 0)
		@throw [OFReadFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: OFSocketErrNo()];
#else
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if ((ret = recv(_socket, buffer, (int)length, 0)) < 0)
		@throw [OFReadFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: OFSocketErrNo()];
#endif

	return ret;
}

- (void)asyncReceiveIntoBuffer: (void *)buffer length: (size_t)length
{

		@throw [OFOutOfRangeException exception];

	if ((bytesWritten = send(_socket, (void *)buffer, length, 0)) < 0)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
			   bytesWritten: 0
				  errNo: OFSocketErrNo()];
#else
	int bytesWritten;

	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if ((bytesWritten = send(_socket, buffer, (int)length, 0)) < 0)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
			   bytesWritten: 0
				  errNo: OFSocketErrNo()];
#endif

	if ((size_t)bytesWritten != length)
		@throw [OFWriteFailedException exceptionWithObject: self
						   requestedLength: length
						      bytesWritten: bytesWritten
							     errNo: 0];

	if (_socket == OFInvalidSocketHandle)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (listen(_socket, backlog) == -1)
		@throw [OFListenOnSocketFailedException
		    exceptionWithSocket: self
				backlog: backlog
				  errNo: OFSocketErrNo()];

	_listening = true;
}

- (instancetype)accept
{
	OFSequencedPacketSocket *client;

#if defined(HAVE_PACCEPT) && defined(SOCK_CLOEXEC)
	if ((client->_socket = paccept(_socket,
	    (struct sockaddr *)&client->_remoteAddress.sockaddr,
	    &client->_remoteAddress.length, NULL, SOCK_CLOEXEC)) ==
	    OFInvalidSocketHandle)
		@throw [OFAcceptSocketFailedException
		    exceptionWithSocket: self
				  errNo: OFSocketErrNo()];
#elif defined(HAVE_ACCEPT4) && defined(SOCK_CLOEXEC)
	if ((client->_socket = accept4(_socket,
	    (struct sockaddr *)&client->_remoteAddress.sockaddr,
	    &client->_remoteAddress.length, SOCK_CLOEXEC)) ==
	    OFInvalidSocketHandle)
		@throw [OFAcceptSocketFailedException
		    exceptionWithSocket: self
				  errNo: OFSocketErrNo()];
#else
	if ((client->_socket = accept(_socket,
	    (struct sockaddr *)&client->_remoteAddress.sockaddr,
	    &client->_remoteAddress.length)) == OFInvalidSocketHandle)
		@throw [OFAcceptSocketFailedException
		    exceptionWithSocket: self
				  errNo: OFSocketErrNo()];

# if defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	if ((flags = fcntl(client->_socket, F_GETFD, 0)) != -1)
		fcntl(client->_socket, F_SETFD, flags | FD_CLOEXEC);
# endif
#endif

# endif
# include <sys/filio.h>
# define closesocket(sock) CloseSocket(sock)
# define ioctlsocket(fd, req, arg) IoctlSocket(fd, req, arg)
# define hstrerror(err) "unknown (no hstrerror)"
# define SOCKET_ERROR -1
# if defined(OF_HAVE_THREADS) && !defined(OF_MORPHOS)
#  define SocketBase ((struct Library *)OFTLSKeyGet(OFSocketBaseKey))
#  ifdef OF_AMIGAOS4
#   define ISocket ((struct SocketIFace *)OFTLSKeyGet(OFSocketInterfaceKey))
#  endif
# endif
# ifdef OF_MORPHOS
typedef uint32_t in_addr_t;
# endif
#elif !defined(OF_WINDOWS) && !defined(OF_WII)
# define closesocket(sock) close(sock)

 *
 * @param address The address on which to get the port
 * @return The port of the address
 */
extern uint8_t OFSocketAddressAppleTalkPort(
    const OFSocketAddress *_Nonnull address);

extern bool OFSocketInit(void);
#if defined(OF_HAVE_THREADS) && defined(OF_AMIGAOS) && !defined(OF_MORPHOS)
extern void OFSocketDeinit(void);
#endif
extern int OFSocketErrNo(void);
#if !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
extern int OFGetSockName(OFSocketHandle sock, struct sockaddr *restrict addr,
    socklen_t *restrict addrLen);
#endif

#if defined(OF_HAVE_THREADS) && defined(OF_AMIGAOS) && !defined(OF_MORPHOS)
extern OFTLSKey OFSocketBaseKey;
# ifdef OF_AMIGAOS4
extern OFTLSKey OFSocketInterfaceKey;
# endif
#endif
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#endif
#if !defined(OF_AMIGAOS) || defined(OF_MORPHOS) || !defined(OF_HAVE_THREADS)
static bool initSuccessful = false;
#endif

#ifdef OF_AMIGAOS
# if defined(OF_HAVE_THREADS) && !defined(OF_MORPHOS)
OFTLSKey OFSocketBaseKey;
#  ifdef OF_AMIGAOS4
OFTLSKey OFSocketInterfaceKey;
#  endif
# else
struct Library *SocketBase;
#  ifdef OF_AMIGAOS4
struct SocketIFace *ISocket = NULL;
#  endif
# endif
#endif

#if defined(OF_HAVE_THREADS) && defined(OF_AMIGAOS) && !defined(OF_MORPHOS)
OF_CONSTRUCTOR()
{
	if (OFTLSKeyNew(&OFSocketBaseKey) != 0)
		@throw [OFInitializationFailedException exception];

# ifdef OF_AMIGAOS4
	if (OFTLSKeyNew(&OFSocketInterfaceKey) != 0)
		@throw [OFInitializationFailedException exception];
# endif
}
#endif

#if !defined(OF_AMIGAOS) || defined(OF_MORPHOS) || !defined(OF_HAVE_THREADS)
static void

	if (SocketBase != NULL)
		CloseLibrary(SocketBase);
# endif
}
#endif

bool
OFSocketInit(void)
{
#if !defined(OF_AMIGAOS) || defined(OF_MORPHOS) || !defined(OF_HAVE_THREADS)
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFOnce(&onceControl, init);

	return initSuccessful;
#else
	struct Library *socketBase;
# ifdef OF_AMIGAOS4
	struct SocketIFace *socketInterface;
# endif

# ifdef OF_AMIGAOS4
	if ((socketInterface = OFTLSKeyGet(OFSocketInterfaceKey)) != NULL)
# else
	if ((socketBase = OFTLSKeyGet(OFSocketBaseKey)) != NULL)
# endif
		return true;

	if ((socketBase = OpenLibrary("bsdsocket.library", 4)) == NULL)
		return false;

# ifdef OF_AMIGAOS4
	if ((socketInterface = (struct SocketIFace *)
	    GetInterface(socketBase, "main", 1, NULL)) == NULL) {
		CloseLibrary(socketBase);
		return false;
	}
# endif

	if (OFTLSKeySet(OFSocketBaseKey, socketBase) != 0) {
		CloseLibrary(socketBase);
# ifdef OF_AMIGAOS4
		DropInterface((struct Interface *)socketInterface);
# endif
		return false;
	}

# ifdef OF_AMIGAOS4
	if (OFTLSKeySet(OFSocketInterfaceKey, socketInterface) != 0) {
		CloseLibrary(socketBase);
		DropInterface((struct Interface *)socketInterface);
		return false;
	}
# endif

	return true;
#endif
}

#if defined(OF_HAVE_THREADS) && defined(OF_AMIGAOS) && !defined(OF_MORPHOS)
void
OFSocketDeinit(void)
{
	struct Library *socketBase = OFTLSKeyGet(OFSocketBaseKey);
# ifdef OF_AMIGAOS4
	struct SocketIFace *socketInterface = OFTLSKeyGet(OFSocketInterfaceKey);


	if (socketInterface != NULL)
		DropInterface((struct Interface *)socketInterface);
# endif
	if (socketBase != NULL)
		CloseLibrary(socketBase);
}
#endif

int
OFSocketErrNo(void)
{
#if defined(OF_WINDOWS)
	switch (WSAGetLastError()) {
	case WSAEACCES:
		return EACCES;
	case WSAEADDRINUSE:
		return EADDRINUSE;

#else
	return errno;
#endif
}

#ifndef OF_WII
int
OFGetSockName(OFSocketHandle sock, struct sockaddr *restrict addr,
    socklen_t *restrict addrLen)
{
	int ret;

# if defined(OF_HAVE_THREADS) && (!defined(OF_AMIGAOS) || defined(OF_MORPHOS))
	[mutex lock];
# endif

#import "macros.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern size_t OFStrFTime(char *buffer, size_t bufferLen, const char *format,
    struct tm *tm, short tz);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

};
static const char monthNames[12][4] = {
	"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct",
	"Nov", "Dec"
};

size_t
OFStrFTime(char *buffer, size_t bufferLen, const char *format, struct tm *tm,
    short tz)
{
	enum {
		stateSearchConversionSpecifier,
		stateInConversionSpecifier
	} state = stateSearchConversionSpecifier;
	size_t j, formatLen;

#import "macros.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif

extern const char *_Nullable OFStrPTime(const char *buffer, const char *format,
    struct tm *tm, short *_Nullable tz);
#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#include <string.h>

#import "OFStrPTime.h"
#import "macros.h"

const char *
OFStrPTime(const char *buffer, const char *format, struct tm *tm, short *tz)
{
	enum {
		stateSearchConversionSpecifier,
		stateInConversionSpecifier
	} state = stateSearchConversionSpecifier;
	size_t j, bufferLen, formatLen;

{
	char *UTF8String;
	int length;

	if (format == nil)
		@throw [OFInvalidArgumentException exception];

	if ((length = OFVASPrintF(&UTF8String, format.UTF8String,
	    arguments)) == -1)
		@throw [OFInvalidFormatException exception];

	@try {
		[self writeBuffer: UTF8String length: length];
	} @finally {
		free(UTF8String);

@synthesize listening = _listening;

+ (void)initialize
{
	if (self != [OFStreamSocket class])
		return;

	if (!OFSocketInit())
		@throw [OFInitializationFailedException
		    exceptionWithClass: self];
}

+ (instancetype)socket
{
	return [[[self alloc] init] autorelease];

		@throw [OFNotOpenException exceptionWithObject: self];

#ifndef OF_WINDOWS
	if ((ret = recv(_socket, buffer, length, 0)) < 0)
		@throw [OFReadFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: OFSocketErrNo()];
#else
	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if ((ret = recv(_socket, buffer, (int)length, 0)) < 0)
		@throw [OFReadFailedException
		    exceptionWithObject: self
			requestedLength: length
				  errNo: OFSocketErrNo()];
#endif

	if (ret == 0)
		_atEndOfStream = true;

	return ret;
}

		@throw [OFOutOfRangeException exception];

	if ((bytesWritten = send(_socket, (void *)buffer, length, 0)) < 0)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
			   bytesWritten: 0
				  errNo: OFSocketErrNo()];
#else
	int bytesWritten;

	if (length > INT_MAX)
		@throw [OFOutOfRangeException exception];

	if ((bytesWritten = send(_socket, buffer, (int)length, 0)) < 0)
		@throw [OFWriteFailedException
		    exceptionWithObject: self
			requestedLength: length
			   bytesWritten: 0
				  errNo: OFSocketErrNo()];
#endif

	return (size_t)bytesWritten;
}

#if defined(OF_WINDOWS) || defined(OF_AMIGAOS)
- (void)setCanBlock: (bool)canBlock
{
# ifdef OF_WINDOWS
	u_long v = !canBlock;
# else
	char v = !canBlock;
# endif

	if (ioctlsocket(_socket, FIONBIO, &v) == SOCKET_ERROR)
		@throw [OFSetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];

	_canBlock = canBlock;
}
#endif

- (int)fileDescriptorForReading
{

- (int)of_socketError
{
	int errNo;
	socklen_t len = sizeof(errNo);

	if (getsockopt(_socket, SOL_SOCKET, SO_ERROR, (char *)&errNo,
	    &len) != 0)
		return OFSocketErrNo();

	return errNo;
}
#endif

- (void)listen
{
	[self listenWithBacklog: SOMAXCONN];
}

- (void)listenWithBacklog: (int)backlog
{
	if (_socket == OFInvalidSocketHandle)
		@throw [OFNotOpenException exceptionWithObject: self];

	if (listen(_socket, backlog) == -1)
		@throw [OFListenOnSocketFailedException
		    exceptionWithSocket: self
				backlog: backlog
				  errNo: OFSocketErrNo()];

	_listening = true;
}

- (instancetype)accept
{
	OFStreamSocket *client;

#if defined(HAVE_PACCEPT) && defined(SOCK_CLOEXEC)
	if ((client->_socket = paccept(_socket,
	    (struct sockaddr *)&client->_remoteAddress.sockaddr,
	    &client->_remoteAddress.length, NULL, SOCK_CLOEXEC)) ==
	    OFInvalidSocketHandle)
		@throw [OFAcceptSocketFailedException
		    exceptionWithSocket: self
				  errNo: OFSocketErrNo()];
#elif defined(HAVE_ACCEPT4) && defined(SOCK_CLOEXEC)
	if ((client->_socket = accept4(_socket,
	    (struct sockaddr * )&client->_remoteAddress.sockaddr,
	    &client->_remoteAddress.length, SOCK_CLOEXEC)) ==
	    OFInvalidSocketHandle)
		@throw [OFAcceptSocketFailedException
		    exceptionWithSocket: self
				  errNo: OFSocketErrNo()];
#else
	if ((client->_socket = accept(_socket,
	    (struct sockaddr *)&client->_remoteAddress.sockaddr,
	    &client->_remoteAddress.length)) == OFInvalidSocketHandle)
		@throw [OFAcceptSocketFailedException
		    exceptionWithSocket: self
				  errNo: OFSocketErrNo()];

# if defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	if ((flags = fcntl(client->_socket, F_GETFD, 0)) != -1)
		fcntl(client->_socket, F_SETFD, flags | FD_CLOEXEC);
# endif
#endif

#import "OFString.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFString_CryptographicHashing_reference;
#ifdef __cplusplus
}
#endif

@interface OFString (CryptographicHashing)
/**
 * @brief The MD5 hash of the string as a string.

#import "OFString.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFString_JSONParsing_reference;
#ifdef __cplusplus
}
#endif

@interface OFString (JSONParsing)
/**
 * @brief The string interpreted as JSON and parsed as an object.

				if ((c1 & 0xFC00) == 0xDC00) {
					OFFreeMemory(buffer);
					return nil;
				}

				/* Normal character */
				if ((c1 & 0xFC00) != 0xD800) {
					l = OFUTF8StringEncode(c1, buffer + i);
					if (l == 0) {
						OFFreeMemory(buffer);
						return nil;
					}

					i += l;
					*pointer += 5;

					OFFreeMemory(buffer);
					return nil;
				}

				c = (((c1 & 0x3FF) << 10) |
				    (c2 & 0x3FF)) + 0x10000;

				l = OFUTF8StringEncode(c, buffer + i);
				if (l == 0) {
					OFFreeMemory(buffer);
					return nil;
				}

				i += l;
				*pointer += 11;

			if ((c1 & 0xFC00) == 0xDC00) {
				OFFreeMemory(buffer);
				return nil;
			}

			/* Normal character */
			if ((c1 & 0xFC00) != 0xD800) {
				l = OFUTF8StringEncode(c1, buffer + i);
				if (l == 0) {
					OFFreeMemory(buffer);
					return nil;
				}

				i += l;
				*pointer += 5;

			if (c2 == 0xFFFF) {
				OFFreeMemory(buffer);
				return nil;
			}

			c = (((c1 & 0x3FF) << 10) | (c2 & 0x3FF)) + 0x10000;

			l = OFUTF8StringEncode(c, buffer + i);
			if (l == 0) {
				OFFreeMemory(buffer);
				return nil;
			}

			i += l;
			*pointer += 11;

#import "OFString.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFString_PathAdditions_reference;
#ifdef __cplusplus
}
#endif

@interface OFString (PathAdditions)
/**
 * @brief Whether the path is an absolute path.

OF_ASSUME_NONNULL_BEGIN

@class OFCharacterSet;

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFString_PercentEncoding_reference;
#ifdef __cplusplus
}
#endif

@interface OFString (PercentEncoding)
/**
 * @brief The string with percent encoding removed.

		if (characterIsMember(allowedCharacters,
		    @selector(characterIsMember:), c))
			[ret appendCharacters: &c length: 1];
		else {
			char buffer[4];
			size_t bufferLen;

			if ((bufferLen = OFUTF8StringEncode(c, buffer)) == 0)
				@throw [OFInvalidEncodingException exception];

			for (size_t j = 0; j < bufferLen; j++) {
				unsigned char byte = buffer[j];
				unsigned char high = byte >> 4;
				unsigned char low = byte & 0x0F;
				char escaped[3];

#import "OFString.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFString_PropertyListParsing_reference;
#ifdef __cplusplus
}
#endif

@interface OFString (PropertyListParsing)
/**
 * @brief The string interpreted as a property list and parsed as an object.

#import "OFString.h"

OF_ASSUME_NONNULL_BEGIN

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFString_XMLEscaping_reference;
#ifdef __cplusplus
}
#endif

@interface OFString (XMLEscaping)
/**
 * @brief The string in a form escaped for use in an XML document.

OF_ASSUME_NONNULL_BEGIN

/** @file */

#ifdef __cplusplus
extern "C" {
#endif
extern int _OFString_XMLUnescaping_reference;
#ifdef __cplusplus
}
#endif

#ifdef OF_HAVE_BLOCKS
/**
 * @brief A block which is called to replace unknown XML entities in an XML

			if (entity[i] >= '0' && entity[i] <= '9')
				c = (c * 10) + (entity[i] - '0');
			else
				return nil;
		}
	}

	if ((i = OFUTF8StringEncode(c, buffer)) == 0)
		return nil;
	buffer[i] = 0;

	return [OFString stringWithUTF8String: buffer length: i];
}

static OFString *

 * @brief Returns the name of the specified OFStringEncoding.
 *
 * @param encoding The encoding for which to return the name
 * @return The name of the specified OFStringEncoding
 */
extern OFString *_Nullable OFStringEncodingName(OFStringEncoding encoding);

extern char *_Nullable OFStrDup(const char *_Nonnull);
extern size_t OFUTF8StringEncode(OFUnichar, char *);

extern ssize_t OFUTF8StringDecode(const char *, size_t, OFUnichar *);


extern size_t OFUTF16StringLength(const OFChar16 *);







extern size_t OFUTF32StringLength(const OFChar32 *);





#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#import "OFConstantString.h"

    of_JSONRepresentationWithOptions: (OFJSONRepresentationOptions)options
			       depth: (size_t)depth;
@end

@interface OFPlaceholderString: OFString
@end

extern bool OFUnicodeToISO8859_2(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToISO8859_3(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToISO8859_15(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToWindows1251(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToWindows1252(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToCodepage437(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToCodepage850(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToCodepage858(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToMacRoman(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToKOI8R(const OFUnichar *, unsigned char *,
    size_t, bool);
extern bool OFUnicodeToKOI8U(const OFUnichar *, unsigned char *,
    size_t, bool);

/* References for static linking */
void
_references_to_categories_of_OFString(void)
{
	_OFString_CryptographicHashing_reference = 1;
	_OFString_JSONParsing_reference = 1;
#ifdef OF_HAVE_FILES
	_OFString_PathAdditions_reference = 1;
#endif
	_OFString_PercentEncoding_reference = 1;
	_OFString_PropertyListParsing_reference = 1;
	_OFString_XMLEscaping_reference = 1;
	_OFString_XMLUnescaping_reference = 1;
}

void
_reference_to_OFConstantString(void)
{
	[OFConstantString class];
}

OFStringEncoding
OFStringEncodingParseName(OFString *string)

		return @"autodetect";
	}

	return nil;
}

size_t
OFUTF8StringEncode(OFUnichar character, char *buffer)
{
	if (character < 0x80) {
		buffer[0] = character;
		return 1;
	} else if (character < 0x800) {
		buffer[0] = 0xC0 | (character >> 6);
		buffer[1] = 0x80 | (character & 0x3F);

		return 4;
	}

	return 0;
}

ssize_t
OFUTF8StringDecode(const char *buffer_, size_t length, OFUnichar *ret)
{
	const unsigned char *buffer = (const unsigned char *)buffer_;

	if (!(*buffer & 0x80)) {
		*ret = buffer[0];
		return 1;
	}

	while (*string++ != 0)
		length++;

	return length;
}

char *
OFStrDup(const char *string)
{
	size_t length = strlen(string);
	char *copy = (char *)OFAllocMemory(1, length + 1);
	memcpy(copy, string, length + 1);

	return copy;
}

	switch (encoding) {
	case OFStringEncodingUTF8:;
		size_t j = 0;

		for (i = 0; i < length; i++) {
			char buffer[4];
			size_t len = OFUTF8StringEncode(characters[i], buffer);

			/*
			 * Check for one more than the current index, as we
			 * need one for the terminating zero.
			 */
			if (j + len >= maxLength)
				@throw [OFOutOfRangeException exception];

		return length;
#ifdef HAVE_ISO_8859_2
	case OFStringEncodingISO8859_2:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToISO8859_2(characters, (unsigned char *)cString,
		    length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_ISO_8859_3
	case OFStringEncodingISO8859_3:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToISO8859_3(characters, (unsigned char *)cString,
		    length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_ISO_8859_15
	case OFStringEncodingISO8859_15:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToISO8859_15(characters, (unsigned char *)cString,
		    length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_WINDOWS_1251
	case OFStringEncodingWindows1251:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToWindows1251(characters,
		    (unsigned char *)cString, length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_WINDOWS_1252
	case OFStringEncodingWindows1252:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToWindows1252(characters,
		    (unsigned char *)cString, length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_CODEPAGE_437
	case OFStringEncodingCodepage437:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToCodepage437(characters,
		    (unsigned char *)cString, length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_CODEPAGE_850
	case OFStringEncodingCodepage850:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToCodepage850(characters,
		    (unsigned char *)cString, length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_CODEPAGE_858
	case OFStringEncodingCodepage858:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToCodepage858(characters,
		    (unsigned char *)cString, length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_MAC_ROMAN
	case OFStringEncodingMacRoman:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToMacRoman(characters, (unsigned char *)cString,
		    length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_KOI8_R
	case OFStringEncodingKOI8R:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToKOI8R(characters, (unsigned char *)cString,
		    length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif
#ifdef HAVE_KOI8_U
	case OFStringEncodingKOI8U:
		if (length + 1 > maxLength)
			@throw [OFOutOfRangeException exception];

		if (!OFUnicodeToKOI8U(characters, (unsigned char *)cString,
		    length, lossy))
			@throw [OFInvalidEncodingException exception];

		cString[length] = '\0';

		return length;
#endif

		size_t length, UTF8StringLength = 0;

		characters = self.characters;
		length = self.length;

		for (size_t i = 0; i < length; i++) {
			char buffer[4];
			size_t len = OFUTF8StringEncode(characters[i], buffer);

			if (len == 0)
				@throw [OFInvalidEncodingException exception];

			UTF8StringLength += len;
		}

	minimumLength = (length > otherLength ? otherLength : length);

	for (size_t i = 0; i < minimumLength; i++) {
		OFUnichar c = characters[i];
		OFUnichar oc = otherCharacters[i];

#ifdef OF_HAVE_UNICODE_TABLES
		if (c >> 8 < OFUnicodeCaseFoldingTableSize) {
			OFUnichar tc =
			    OFUnicodeCaseFoldingTable[c >> 8][c & 0xFF];

			if (tc)
				c = tc;
		}
		if (oc >> 8 < OFUnicodeCaseFoldingTableSize) {
			OFUnichar tc =
			    OFUnicodeCaseFoldingTable[oc >> 8][oc & 0xFF];

			if (tc)
				oc = tc;
		}
#else
		c = OFASCIIToUpper(c);
		oc = OFASCIIToUpper(oc);

	if (_socket != OFInvalidSocketHandle)
		@throw [OFAlreadyOpenException exceptionWithObject: self];

	if ((_socket = socket(
	    ((struct sockaddr *)&address->sockaddr)->sa_family,
	    SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle) {
		*errNo = OFSocketErrNo();
		return false;
	}

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	return true;
}

- (bool)of_connectSocketToAddress: (const OFSocketAddress *)address
			    errNo: (int *)errNo
{
	if (_socket == OFInvalidSocketHandle)
		@throw [OFNotOpenException exceptionWithObject: self];

	/* Cast needed for AmigaOS, where the argument is declared non-const */
	if (connect(_socket, (struct sockaddr *)&address->sockaddr,
	    address->length) != 0) {
		*errNo = OFSocketErrNo();
		return false;
	}

	return true;
}

- (void)of_closeSocket

	if ((_socket = socket(
	    ((struct sockaddr *)&address.sockaddr)->sa_family,
	    SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle)
		@throw [OFBindIPSocketFailedException
		    exceptionWithHost: host
				 port: port
			       socket: self
				errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	setsockopt(_socket, SOL_SOCKET, SO_REUSEADDR,
	    (char *)&one, (socklen_t)sizeof(one));

#if defined(OF_HPUX) || defined(OF_WII) || defined(OF_NINTENDO_3DS)
	if (port != 0) {
#endif
		if (bind(_socket, (struct sockaddr *)&address.sockaddr,
		    address.length) != 0) {
			int errNo = OFSocketErrNo();

			closesocket(_socket);
			_socket = OFInvalidSocketHandle;

			@throw [OFBindIPSocketFailedException
			    exceptionWithHost: host
					 port: port

			OFSocketAddressSetIPPort(&address, rnd);

			if ((ret = bind(_socket,
			    (struct sockaddr *)&address.sockaddr,
			    address.length)) == 0)
				break;

			if (OFSocketErrNo() != EADDRINUSE) {
				int errNo = OFSocketErrNo();

				closesocket(_socket);
				_socket = OFInvalidSocketHandle;

				@throw [OFBindIPSocketFailedException
				    exceptionWithHost: host
						 port: port
					       socket: self
						errNo: errNo];
			}
		}
	}
#endif

#if !defined(OF_HPUX) && !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
	memset(&address, 0, sizeof(address));

	address.length = (socklen_t)sizeof(address.sockaddr);
	if (OFGetSockName(_socket, (struct sockaddr *)&address.sockaddr,
	    &address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPSocketFailedException exceptionWithHost: host
								   port: port
								 socket: self

{
	int v = sendsKeepAlives;

	if (setsockopt(_socket, SOL_SOCKET, SO_KEEPALIVE,
	    (char *)&v, (socklen_t)sizeof(v)) != 0)
		@throw [OFSetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];
}

- (bool)sendsKeepAlives
{
	int v;
	socklen_t len = sizeof(v);

	if (getsockopt(_socket, SOL_SOCKET, SO_KEEPALIVE,
	    (char *)&v, &len) != 0 || len != sizeof(v))
		@throw [OFGetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];

	return v;
}
#endif

#ifndef OF_WII
- (void)setCanDelaySendingSegments: (bool)canDelaySendingSegments
{
	int v = !canDelaySendingSegments;

	if (setsockopt(_socket, IPPROTO_TCP, TCP_NODELAY,
	    (char *)&v, (socklen_t)sizeof(v)) != 0)
		@throw [OFSetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];
}

- (bool)canDelaySendingSegments
{
	int v;
	socklen_t len = sizeof(v);

	if (getsockopt(_socket, IPPROTO_TCP, TCP_NODELAY,
	    (char *)&v, &len) != 0 || len != sizeof(v))
		@throw [OFGetOptionFailedException
		    exceptionWithObject: self
				  errNo: OFSocketErrNo()];

	return !v;
}
#endif

- (void)close
{

#if !defined(OF_HAVE_THREADS) || \
    (!defined(OF_HAVE_PTHREADS) && !defined(OF_WINDOWS) && !defined(OF_AMIGAOS))
# error No thread-local storage available!
#endif

#import "macros.h"



#if defined(OF_HAVE_PTHREADS)
# include <pthread.h>
typedef pthread_key_t OFTLSKey;
#elif defined(OF_WINDOWS)
# include <windows.h>
typedef DWORD OFTLSKey;
#elif defined(OF_MORPHOS)
# include <proto/exec.h>
typedef ULONG OFTLSKey;
#elif defined(OF_AMIGAOS)
typedef struct _OFTLSKey {
	struct objc_hashtable *table;
	struct _OFTLSKey *next, *previous;
} *OFTLSKey;
#endif

#ifdef __cplusplus
extern "C" {
#endif






extern int OFTLSKeyNew(OFTLSKey *key);







extern int OFTLSKeyFree(OFTLSKey key);
#ifdef __cplusplus
}
#endif

/* TLS keys are inlined for performance. */

#if defined(OF_HAVE_PTHREADS)






static OF_INLINE void *
OFTLSKeyGet(OFTLSKey key)
{
	return pthread_getspecific(key);
}







static OF_INLINE int
OFTLSKeySet(OFTLSKey key, void *ptr)
{
	return pthread_setspecific(key, ptr);
}
#elif defined(OF_WINDOWS)
static OF_INLINE void *
OFTLSKeyGet(OFTLSKey key)
{
	return TlsGetValue(key);
}

static OF_INLINE int
OFTLSKeySet(OFTLSKey key, void *ptr)
{
	return (TlsSetValue(key, ptr) ? 0 : EINVAL);
}
#elif defined(OF_MORPHOS)
static OF_INLINE void *
OFTLSKeyGet(OFTLSKey key)
{
	return (void *)TLSGetValue(key);
}

static OF_INLINE int
OFTLSKeySet(OFTLSKey key, void *ptr)
{
	return (TLSSetValue(key, (APTR)ptr) ? 0 : EINVAL);
}
#elif defined(OF_AMIGAOS)
/* Those are too big too inline. */
# ifdef __cplusplus
extern "C" {
# endif
extern void *OFTLSKeyGet(OFTLSKey key);
extern int OFTLSKeySet(OFTLSKey key, void *ptr);
# ifdef __cplusplus
}
# endif
#endif

static const OFRunLoopMode handshakeRunLoopMode =
    @"OFTLSStreamHandshakeRunLoopMode";

/*
 * References to exceptions. This is needed because they are only used by
 * subclasses that are in a different library.
 */
void
_references_to_exceptions_of_OFTLSStream(void)
{
	_OFTLSHandshakeFailedException_reference = 1;
}

OFString *
OFTLSStreamErrorCodeDescription(OFTLSStreamErrorCode errorCode)

- (OFTimeInterval)timeIntervalSince1970
{
	uint64_t value = (uint64_t)object_getTaggedPointerValue(self);

	value |= UINT64_C(4) << 60;

	return OFFromBigEndianDouble(OFRawUInt64ToDouble(OFToBigEndian64(
	    value)));
}

OF_SINGLETON_METHODS
@end
#endif

+ (instancetype)archiveWithIRI: (OFIRI *)IRI mode: (OFString *)mode
{
	return [[[self alloc] initWithIRI: IRI mode: mode] autorelease];
}

+ (OFIRI *)IRIForFilePath: (OFString *)path inArchiveWithIRI: (OFIRI *)IRI
{
	return OFArchiveIRIHandlerIRIForFileInArchive(@"tar", path, IRI);
}

- (instancetype)init
{
	OF_INVALID_INIT_METHOD
}

		OFSetThreadName(
		    [name cStringWithEncoding: [OFLocale encoding]]);
	else
		OFSetThreadName(object_getClassName(thread));

#if defined(OF_AMIGAOS) && defined(OF_HAVE_SOCKETS)
	if (thread.supportsSockets)
		if (!OFSocketInit())
			@throw [OFInitializationFailedException
			    exceptionWithClass: thread.class];
#endif

	/*
	 * Nasty workaround for thread implementations which can't return a
	 * pointer on join, or don't have a way to exit a thread.

	objc_autoreleasePoolPop((void *)(uintptr_t)-1);
#else
	objc_autoreleasePoolPop(thread->_pool);
#endif

#if defined(OF_AMIGAOS) && !defined(OF_MORPHOS) && defined(OF_HAVE_SOCKETS)
	if (thread.supportsSockets)
		OFSocketDeinit();
#endif

	thread->_running = OFThreadStateWaitingForJoin;

	[thread release];
}

	if ((_socket = socket(
	    ((struct sockaddr *)&address->sockaddr)->sa_family,
	    SOCK_DGRAM | SOCK_CLOEXEC | extraType, 0)) == OFInvalidSocketHandle)
		@throw [OFBindIPSocketFailedException
		    exceptionWithHost: OFSocketAddressString(address)
				 port: OFSocketAddressIPPort(address)
			       socket: self
				errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	/* {} needed to avoid warning with Clang 10 if next #if is false. */
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1) {
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
	}
#endif

#if defined(OF_HPUX) || defined(OF_WII) || defined(OF_NINTENDO_3DS)
	if (OFSocketAddressIPPort(address) != 0) {
#endif
		if (bind(_socket, (struct sockaddr *)&address->sockaddr,
		    address->length) != 0) {
			int errNo = OFSocketErrNo();

			closesocket(_socket);
			_socket = OFInvalidSocketHandle;

			@throw [OFBindIPSocketFailedException
			    exceptionWithHost: OFSocketAddressString(address)
					 port: OFSocketAddressIPPort(address)

			OFSocketAddressSetIPPort(address, rnd);

			if ((ret = bind(_socket,
			    (struct sockaddr *)&address->sockaddr,
			    address->length)) == 0)
				break;

			if (OFSocketErrNo() != EADDRINUSE) {
				int errNo = OFSocketErrNo();
				OFString *host = OFSocketAddressString(address);
				uint16_t port = OFSocketAddressIPPort(address);

				closesocket(_socket);
				_socket = OFInvalidSocketHandle;

				@throw [OFBindIPSocketFailedException

#if !defined(OF_HPUX) && !defined(OF_WII) && !defined(OF_NINTENDO_3DS)
	host = OFSocketAddressString(address);
	port = OFSocketAddressIPPort(address);

	memset(address, 0, sizeof(*address));

	address->length = (socklen_t)sizeof(address->sockaddr);
	if (OFGetSockName(_socket, (struct sockaddr *)&address->sockaddr,
	    &address->length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindIPSocketFailedException exceptionWithHost: host
								   port: port
								 socket: self

 */

#include "config.h"

#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif



#import "OFUNIXDatagramSocket.h"
#import "OFSocket.h"
#import "OFSocket+Private.h"
#import "OFString.h"

#import "OFAlreadyOpenException.h"
#import "OFBindUNIXSocketFailedException.h"

@implementation OFUNIXDatagramSocket
@dynamic delegate;

- (OFSocketAddress)bindToPath: (OFString *)path
{

	OFSocketAddress address;
#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC)
	int flags;
#endif

	if (_socket != OFInvalidSocketHandle)
		@throw [OFAlreadyOpenException exceptionWithObject: self];

	if (path != nil)
		address = OFSocketAddressMakeUNIX(path);
	else {
		address.family = OFSocketAddressFamilyUnknown;
		address.length = 0;
	}

	if ((_socket = socket(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, 0)) ==
	    OFInvalidSocketHandle)
		@throw [OFBindUNIXSocketFailedException
		    exceptionWithPath: path
			       socket: self
				errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL_H) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	if (path != nil) {
		if (bind(_socket, (struct sockaddr *)&address.sockaddr,
		    address.length) != 0) {
			int errNo = OFSocketErrNo();

			closesocket(_socket);
			_socket = OFInvalidSocketHandle;

			@throw [OFBindUNIXSocketFailedException
			    exceptionWithPath: path
				       socket: self
					errNo: errNo];
		}
	}

	return address;










}
@end

	address = OFSocketAddressMakeUNIX(path);

	if ((_socket = socket(address.sockaddr.un.sun_family,
	    SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle)
		@throw [OFConnectUNIXSocketFailedException
		    exceptionWithPath: path
			       socket: self
				errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	if (connect(_socket, (struct sockaddr *)&address.sockaddr,
	    address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFConnectUNIXSocketFailedException
		    exceptionWithPath: path
			       socket: self

	address = OFSocketAddressMakeUNIX(path);

	if ((_socket = socket(address.sockaddr.un.sun_family,
	    SOCK_STREAM | SOCK_CLOEXEC, 0)) == OFInvalidSocketHandle)
		@throw [OFBindUNIXSocketFailedException
		    exceptionWithPath: path
			       socket: self
				errNo: OFSocketErrNo()];

	_canBlock = true;

#if SOCK_CLOEXEC == 0 && defined(HAVE_FCNTL) && defined(FD_CLOEXEC)
	if ((flags = fcntl(_socket, F_GETFD, 0)) != -1)
		fcntl(_socket, F_SETFD, flags | FD_CLOEXEC);
#endif

	if (bind(_socket, (struct sockaddr *)&address.sockaddr,
	    address.length) != 0) {
		int errNo = OFSocketErrNo();

		closesocket(_socket);
		_socket = OFInvalidSocketHandle;

		@throw [OFBindUNIXSocketFailedException
		    exceptionWithPath: path
			       socket: self
				errNo: errNo];
	}
}
@end

	struct OFUTF8StringIvars _storage;
}
@end

#ifdef __cplusplus
extern "C" {
#endif
extern int OFUTF8StringCheck(const char *, size_t, size_t *);

extern size_t OFUTF8StringIndexToPosition(const char *, size_t, size_t);

#ifdef __cplusplus
}
#endif

OF_ASSUME_NONNULL_END

#import "OFInvalidEncodingException.h"
#import "OFInvalidFormatException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

#import "unicode.h"

extern const OFChar16 OFISO8859_2Table[];
extern const size_t OFISO8859_2TableOffset;
extern const OFChar16 OFISO8859_3Table[];
extern const size_t OFISO8859_3TableOffset;
extern const OFChar16 OFISO8859_15Table[];
extern const size_t OFISO8859_15TableOffset;
extern const OFChar16 OFWindows1251Table[];
extern const size_t OFWindows1251TableOffset;
extern const OFChar16 OFWindows1252Table[];
extern const size_t OFWindows1252TableOffset;
extern const OFChar16 OFCodepage437Table[];
extern const size_t OFCodepage437TableOffset;
extern const OFChar16 OFCodepage850Table[];
extern const size_t OFCodepage850TableOffset;
extern const OFChar16 OFCodepage858Table[];
extern const size_t OFCodepage858TableOffset;
extern const OFChar16 OFMacRomanTable[];
extern const size_t OFMacRomanTableOffset;
extern const OFChar16 OFKOI8RTable[];
extern const size_t OFKOI8RTableOffset;
extern const OFChar16 OFKOI8UTable[];
extern const size_t OFKOI8UTableOffset;

static inline int
memcasecmp(const char *first, const char *second, size_t length)
{
	for (size_t i = 0; i < length; i++) {
		unsigned char f = first[i];
		unsigned char s = second[i];

			return OFOrderedAscending;
	}

	return OFOrderedSame;
}

int
OFUTF8StringCheck(const char *UTF8String, size_t UTF8Length, size_t *length)
{
	size_t tmpLength = UTF8Length;
	int isUTF8 = 0;

	for (size_t i = 0; i < UTF8Length; i++) {
		/* No sign of UTF-8 here */
		if OF_LIKELY (!(UTF8String[i] & 0x80))

	if (length != NULL)
		*length = tmpLength;

	return isUTF8;
}

size_t
positionToIndex(const char *string, size_t position)
{
	size_t idx = position;

	for (size_t i = 0; i < position; i++)
		if OF_UNLIKELY ((string[i] & 0xC0) == 0x80)
			idx--;

	return idx;
}

size_t
OFUTF8StringIndexToPosition(const char *string, size_t idx, size_t length)
{
	for (size_t i = 0; i <= idx; i++)
		if OF_UNLIKELY ((string[i] & 0xC0) == 0x80)
			if (++idx > length)
				@throw [OFInvalidFormatException exception];

	return idx;

		}

		_s = &_storage;

		_s->cString = storage;
		_s->cStringLength = UTF8StringLength;

		switch (OFUTF8StringCheck(UTF8String, UTF8StringLength,
		    &_s->length)) {
		case 1:
			_s->isUTF8 = true;
			break;
		case -1:
			@throw [OFInvalidEncodingException exception];
		}

		_s->cString = OFAllocMemory(cStringLength + 1, 1);
		_s->cStringLength = cStringLength;
		_s->freeWhenDone = true;

		if (encoding == OFStringEncodingUTF8 ||
		    encoding == OFStringEncodingASCII) {
			switch (OFUTF8StringCheck(cString, cStringLength,
			    &_s->length)) {
			case 1:
				if (encoding == OFStringEncodingASCII)
					@throw [OFInvalidEncodingException
					    exception];

				_s->isUTF8 = true;

				if (!(cString[i] & 0x80)) {
					_s->cString[j++] = cString[i];
					continue;
				}

				_s->isUTF8 = true;
				bytes = OFUTF8StringEncode(
				    (uint8_t)cString[i], buffer);

				if (bytes == 0)
					@throw [OFInvalidEncodingException
					    exception];

				_s->cStringLength += bytes - 1;

		switch (encoding) {
#define CASE(encoding, var)				\
		case encoding:				\
			table = var;			\
			tableOffset = var##Offset;	\
			break;
#ifdef HAVE_ISO_8859_2
		CASE(OFStringEncodingISO8859_2, OFISO8859_2Table)
#endif
#ifdef HAVE_ISO_8859_3
		CASE(OFStringEncodingISO8859_3, OFISO8859_3Table)
#endif
#ifdef HAVE_ISO_8859_15
		CASE(OFStringEncodingISO8859_15, OFISO8859_15Table)
#endif
#ifdef HAVE_WINDOWS_1251
		CASE(OFStringEncodingWindows1251, OFWindows1251Table)
#endif
#ifdef HAVE_WINDOWS_1252
		CASE(OFStringEncodingWindows1252, OFWindows1252Table)
#endif
#ifdef HAVE_CODEPAGE_437
		CASE(OFStringEncodingCodepage437, OFCodepage437Table)
#endif
#ifdef HAVE_CODEPAGE_850
		CASE(OFStringEncodingCodepage850, OFCodepage850Table)
#endif
#ifdef HAVE_CODEPAGE_858
		CASE(OFStringEncodingCodepage858, OFCodepage858Table)
#endif
#ifdef HAVE_MAC_ROMAN
		CASE(OFStringEncodingMacRoman, OFMacRomanTable)
#endif
#ifdef HAVE_KOI8_R
		CASE(OFStringEncodingKOI8R, OFKOI8RTable)
#endif
#ifdef HAVE_KOI8_U
		CASE(OFStringEncodingKOI8U, OFKOI8UTable)
#endif
#undef CASE
		default:
			@throw [OFInvalidArgumentException exception];
		}

		j = 0;
		for (size_t i = 0; i < cStringLength; i++) {
			unsigned char character = (unsigned char)cString[i];
			OFUnichar unichar;
			char buffer[4];
			size_t byteLength;

			if (character < tableOffset) {
				_s->cString[j++] = cString[i];
				continue;
			}

			unichar = table[character - tableOffset];



			if (unichar == 0xFFFF)
				@throw [OFInvalidEncodingException exception];






			_s->isUTF8 = true;
			byteLength = OFUTF8StringEncode(unichar, buffer);


			if (byteLength == 0)
				@throw [OFInvalidEncodingException exception];

			_s->cStringLength += byteLength - 1;
			_s->cString = OFResizeMemory(_s->cString,
			    _s->cStringLength + 1, 1);

		if (UTF8StringLength >= 3 &&
		    memcmp(UTF8String, "\xEF\xBB\xBF", 3) == 0) {
			UTF8String += 3;
			UTF8StringLength -= 3;
		}

		switch (OFUTF8StringCheck(UTF8String, UTF8StringLength,
		    &_s->length)) {
		case 1:
			_s->isUTF8 = true;
			break;
		case -1:
			@throw [OFInvalidEncodingException exception];
		}

{
	self = [super init];

	@try {
		_s = &_storage;

		_s->cStringLength = string.UTF8StringLength;

		if ([string isKindOfClass: [OFUTF8String class]] ||
		    [string isKindOfClass: [OFMutableUTF8String class]])
			_s->isUTF8 = ((OFUTF8String *)string)->_s->isUTF8;
		else
			_s->isUTF8 = true;

		_s->length = string.length;

		_s->cString = OFAllocMemory(_s->cStringLength + 1, 1);
		memcpy(_s->cString, string.UTF8String, _s->cStringLength + 1);
		_s->freeWhenDone = true;














	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}