Automic VaultAutomic Vault

brew

使用 Homebrew, apk, dnf, MacPorts, Nix, pacman, apt, zypper 安装 libidn2

查看 libidn2 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。

安装命令安全说明

安装

其他安装命令

macOS

Homebrew已验证 · 100%
brew install libidn2

local Homebrew formula metadata

MacPorts已验证 · 94%
sudo port install libidn2

MacPorts ports tree · mail/libidn2/Portfile · 来源: api.github.com

Linux

Alpine Linux apk已验证 · 92%
sudo apk add libidn2

Alpine Linux edge package indexes · libidn2 · 来源: dl-cdn.alpinelinux.org

Fedora dnf已验证 · 92%
sudo dnf install libidn2

Fedora Rawhide package metadata · libidn2 · 来源: dl.fedoraproject.org

Nix已验证 · 92%
nix profile install nixpkgs#libidn2

nixpkgs package indexes · libidn2 · 来源: raw.githubusercontent.com

Arch Linux pacman已验证 · 92%
sudo pacman -S libidn2

Arch Linux sync databases · libidn2 · 来源: geo.mirror.pkgbuild.com

Debian apt已验证 · 92%
sudo apt install idn2

Debian stable package indexes · idn2 · 来源: deb.debian.org

openSUSE zypper已验证 · 92%
sudo zypper install libidn2-0

openSUSE Tumbleweed package metadata · libidn2-0 · 来源: download.opensuse.org

概览

软件包摘要

International domain name library (IDNA2008, Punycode and TR46)

命令和别名

  • idn2

历史

项目历史与用法

GNU Libidn2 is the GNU successor to Libidn for IDNA2008 and Unicode TR46 internationalized-domain-name processing.

项目历史

The IETF IDNA2008 RFC series replaced the earlier IDNA2003 model, describing a revised protocol and definitions for internationalized domain names. Libidn2 was created to implement that newer standards family while retaining package-level continuity for GNU users.

The Libidn2 NEWS file records an initial 0.0 alpha release on 2011-03-09 for public API review, with IDNA2008 lookup mostly implemented. Release 0.2 on 2011-03-30 added the idn2 command-line tool and made lookup/register functions operational.

Release 0.12 on 2016-12-26 added TR46/UTS #46 support to the API and idn2 utility. Release 2.0.0 on 2017-03-29 changed the version numbering scheme and added to-ASCII and to-Unicode conversion functions corresponding to Libidn functions. Release 2.0.5 on 2018-05-18 switched the default library behavior to IDNA2008 as amended by non-transitional TR46.

采用历史

The GNU Libidn page explicitly calls Libidn2 the successor of GNU Libidn and notes that it provides IDNA2008, TR46, and a compatibility layer for GNU Libidn. That made it the practical migration path for distributions and network applications moving away from IDNA2003 behavior.

Libidn2 is package-visible because applications often need a shared, audited implementation of Unicode domain-name conversion rather than hand-rolling security-sensitive Punycode and normalization behavior.

使用方式

Users call idn2 for command-line conversion and debugging, while applications link the library for IDNA lookup and registration conversions. The manual emphasizes correct locale and UTF-8 handling because feeding bytes in the wrong character set can produce errors or wrong output.

为什么软件包爱好者会关心

Libidn2 is where DNS, Unicode versioning, security-sensitive string handling, and compatibility policy meet. Packagers care about it because changing from libidn to libidn2 can alter IDNA behavior, but staying on IDNA2003 can be wrong for software that expects IDNA2008/TR46.

It is also a good example of a successor package that is not just a new ABI: it represents a standards transition and a different view of what domain names should accept.

时间线

  • 2010: RFC 5890 and related RFCs documented the IDNA2008 revision that superseded IDNA2003.
  • 2011: Libidn2 0.0 alpha released for public API review.
  • 2011: Libidn2 0.2 added the idn2 command-line tool.
  • 2016: Libidn2 0.12 added TR46/UTS #46 support.
  • 2017: Libidn2 2.0.0 changed version numbering and added Libidn-corresponding conversion APIs.
  • 2018: Libidn2 2.0.5 made IDNA2008 plus non-transitional TR46 the default behavior.

Related projects

  • GNU Libidn is the predecessor and compatibility target.
  • GNU libunistring is related through Unicode string support used by Libidn2 builds.
  • RFC 5890, RFC 5891, and Unicode UTS #46 define the standards context around Libidn2.

安全态势

风险级别：绿色

library-like package without higher-risk signals.

风险分类器

绿色 风险 · 低 置信度 · appliance

原因

  • library-like package without higher-risk signals

信号

  • metadata:library-like

安装行为

  • formula 元数据中未记录 Homebrew post-install 钩子。
  • Homebrew bottle 元数据适用于 8 个平台目标。
  • 安装时包含 2 个运行时依赖。
  • 构建元数据列出 1 个构建依赖。

建议审查

在无人值守的代理使用前，请检查该工具是否读取明文凭据、写入远程状态、发布制品或调用插件。

可执行文件

已安装的可执行文件

命令类型暴露范围备注
idn2cli全局可执行文件

新鲜度

版本和新鲜度

这些信号区分页生成时间、软件包管理器活动和上游发布比较。只有存在证据 URL 和可比较版本时，才会提示版本落后。

页面生成时间2026-07-10
管理器版本2.3.8
管理器更新时间2026-06-22
本地数据OK
上游not checked
检测到的最新版本未检测到

https://www.gnu.org/software/libidn/#libidn2

安装元数据

软件包元数据

软件包键brew:libidn2
版本2.3.8
软件包管理器Homebrew
软件包管理器页面https://formulae.brew.sh/formula/libidn2
主页https://www.gnu.org/software/libidn/#libidn2
仓库https://git.savannah.gnu.org/git/libidn/libidn2.git
上游文档https://www.gnu.org/software/libidn/libidn2/manual/libidn2.html
许可证(GPL-2.0-or-later OR LGPL-3.0-or-later) AND (Unicode-TOU AND Unicode-DFS-2016) AND GPL-3.0-or-later AND LGPL-2.1-or-later AND FSFAP-no-warranty-disclaimer
源码归档https://ftpmirror.gnu.org/gnu/libidn/libidn2-2.3.8.tar.gz
最后更新2026-06-22T14:05:18-07:00
Pulseupdated
依赖gettext, libunistring
构建依赖pkgconf
Bottle可用 (于 arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux)
Homebrew post-install未定义
服务未声明

注册表事实

源数据库详情

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Namelibidn2
Version Scheme0
Revision0
Head VersionHEAD
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • head
  • stable

源数据库匹配

其他软件包管理器记录

匹配项来自外部软件包管理器索引，并与本地 Automic Vault 软件包链接分开显示。

Debian apt95%

idn2 2.3.8-2

Internationalized domain names (IDNA2008/TR46) command line tool

https://www.gnu.org/software/libidn/#libidn2

sudo apt install idn2
  • Section: devel
  • Architecture: amd64
  • Source Package: libidn2
  • 3 依赖
  • 1 可选依赖
  • normalized package name match
  • 匹配方式：Libidn2
Debian stable package indexes · deb.debian.org · Debian stable package indexes: idn2 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libidn2-0 2.3.8-2

Internationalized domain names (IDNA2008/TR46) library

https://www.gnu.org/software/libidn/#libidn2

sudo apt install libidn2-0
  • Section: libs
  • Architecture: amd64
  • Source Package: libidn2
  • 2 依赖
  • normalized package name match
  • 匹配方式：Libidn2
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libidn2-0 from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libidn2-dev 2.3.8-2

Internationalized domain names (IDNA2008/TR46) development files

https://www.gnu.org/software/libidn/#libidn2

sudo apt install libidn2-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: libidn2
  • 1 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libidn2
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libidn2-dev from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Debian apt95%

libidn2-doc 2.3.8-2

Internationalized domain names (IDNA2008/TR46) documentation

https://www.gnu.org/software/libidn/#libidn2

sudo apt install libidn2-doc
  • Section: doc
  • Architecture: all
  • Source Package: libidn2
  • 1 可选依赖
  • normalized package name match
  • 匹配方式：Libidn2
Debian stable package indexes · deb.debian.org · Debian stable package indexes: libidn2-doc from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz
Nix95%

libidn2

nix profile install nixpkgs#libidn2
  • normalized package name match
  • 匹配方式：Libidn2
nixpkgs package indexes · raw.githubusercontent.com · nixpkgs package indexes: libidn2 from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix
Ubuntu apt95%

idn2 2.3.7-2build1

Internationalized domain names (IDNA2008/TR46) command line tool

https://www.gnu.org/software/libidn/#libidn2

sudo apt install idn2
  • Section: universe/devel
  • Architecture: amd64
  • Source Package: libidn2
  • 3 依赖
  • normalized package name match
  • 匹配方式：Libidn2
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: idn2 from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz
Ubuntu apt95%

libidn2-0 2.3.7-2build1

Internationalized domain names (IDNA2008/TR46) library

https://www.gnu.org/software/libidn/#libidn2

sudo apt install libidn2-0
  • Section: libs
  • Architecture: amd64
  • Source Package: libidn2
  • 2 依赖
  • normalized package name match
  • 匹配方式：Libidn2
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libidn2-0 from https://archive.ubuntu.com/ubuntu/dists/noble/main/binary-amd64/Packages.gz
Ubuntu apt95%

libidn2-dev 2.3.7-2build1

Internationalized domain names (IDNA2008/TR46) development files

https://www.gnu.org/software/libidn/#libidn2

sudo apt install libidn2-dev
  • Section: libdevel
  • Architecture: amd64
  • Source Package: libidn2
  • 1 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libidn2
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libidn2-dev from https://archive.ubuntu.com/ubuntu/dists/noble/main/binary-amd64/Packages.gz
Ubuntu apt95%

libidn2-doc 2.3.7-2build1

Internationalized domain names (IDNA2008/TR46) documentation

https://www.gnu.org/software/libidn/#libidn2

sudo apt install libidn2-doc
  • Section: doc
  • Architecture: all
  • Source Package: libidn2
  • 1 可选依赖
  • normalized package name match
  • 匹配方式：Libidn2
Ubuntu 24.04 LTS package indexes · archive.ubuntu.com · Ubuntu 24.04 LTS package indexes: libidn2-doc from https://archive.ubuntu.com/ubuntu/dists/noble/main/binary-amd64/Packages.gz
apk95%

idn2-utils 2.3.8-r0

Encode/Decode library for internationalized domain names (CLI utilities)

https://www.gnu.org/software/libidn#libidn2

sudo apk add idn2-utils
  • License: GPL-3.0-or-later
  • Architecture: x86_64
  • Source Package: libidn2
  • 1 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libidn2
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: idn2-utils from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
apk95%

libidn2 2.3.8-r0

Encode/Decode library for internationalized domain names

https://www.gnu.org/software/libidn#libidn2

sudo apk add libidn2
  • License: GPL-2.0-or-later OR LGPL-3.0-or-later
  • Architecture: x86_64
  • Source Package: libidn2
  • 1 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libidn2
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libidn2 from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
apk95%

libidn2-dev 2.3.8-r0

Encode/Decode library for internationalized domain names (development files)

https://www.gnu.org/software/libidn#libidn2

sudo apk add libidn2-dev
  • License: GPL-2.0-or-later OR LGPL-3.0-or-later
  • Architecture: x86_64
  • Source Package: libidn2
  • 1 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libidn2
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libidn2-dev from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
apk95%

libidn2-doc 2.3.8-r0

Encode/Decode library for internationalized domain names (documentation)

https://www.gnu.org/software/libidn#libidn2

sudo apk add libidn2-doc
  • License: GPL-2.0-or-later OR LGPL-3.0-or-later
  • Architecture: x86_64
  • Source Package: libidn2
  • normalized package name match
  • 匹配方式：Libidn2
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libidn2-doc from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
apk95%

libidn2-static 2.3.8-r0

Encode/Decode library for internationalized domain names (static library)

https://www.gnu.org/software/libidn#libidn2

sudo apk add libidn2-static
  • License: GPL-2.0-or-later OR LGPL-3.0-or-later
  • Architecture: x86_64
  • Source Package: libidn2
  • normalized package name match
  • 匹配方式：Libidn2
Alpine Linux edge package indexes · dl-cdn.alpinelinux.org · Alpine Linux edge package indexes: libidn2-static from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
dnf95%

idn2 2.3.8-3.fc44

IDNA2008 internationalized domain names conversion tool

https://www.gnu.org/software/libidn/#libidn2

sudo dnf install idn2
  • License: GPL-3.0-or-later
  • Category: Unspecified
  • Architecture: x86_64
  • Source Package: libidn2
  • 5 依赖
  • 1 提供
  • normalized package name match
  • 匹配方式：Libidn2
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: idn2 from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst
dnf95%

libidn2 2.3.8-3.fc44

Library to support IDNA2008 internationalized domain names

https://www.gnu.org/software/libidn/#libidn2

sudo dnf install libidn2
  • License: (GPL-2.0-or-later OR LGPL-3.0-or-later) AND GPL-3.0-or-later
  • Category: Unspecified
  • Architecture: i686
  • Source Package: libidn2
  • 3 依赖
  • 3 提供
  • normalized package name match
  • 匹配方式：Libidn2
Fedora Rawhide package metadata · dl.fedoraproject.org · Fedora Rawhide package metadata: libidn2 from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst

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相同工作流

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