# tcpsplit を Homebrew でインストール

tcpsplit のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:tcpsplit
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install tcpsplit
```

  証拠: local Homebrew formula metadata

## パッケージ情報

- **パッケージキー:** brew:tcpsplit
- **パッケージマネージャ:** Homebrew
- **バージョン:** 0.3
- **ソース概要:** Break a packet trace into some number of sub-traces
- **ホームページ:** <https://www.icir.org/mallman/software/tcpsplit/>
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- tcpsplit (エイリアス)

## インストール挙動

- Bottle: 利用不可

## バージョンと鮮度

- ページ生成日: 2026-08-03
- マネージャ版: 0.3
## プロジェクトの歴史と使われ方

tcpsplit is a small libpcap trace utility from Mark Allman for splitting one packet trace into several smaller traces while keeping each TCP connection together. Its history is intentionally modest: it is a research-and-analysis helper rather than a broad platform.

### プロジェクトの歴史

The official ICIR page presents tcpsplit as Mark Allman's utility for breaking large libpcap traces along TCP connection boundaries. The 0.3 README identifies the March 2025 release and says it was developed for MacOS and Linux, with libpcap as the required dependency.

### 採用の歴史

The supplied package metadata shows only a Homebrew package among the tracked package managers, which fits the tool's narrow role in packet-trace analysis. The author's homepage notes a new tcpsplit release in March 2025, so the project was still maintained for its niche even without broad packaging.

### 使われ方

The package is used when a packet trace is too large for detailed work or when analysis should be developed against a subset without splitting individual TCP flows across output files. The README documents deterministic splitting, prefix-based IPv4 and IPv6 classification, and a validation script to check that splitting did not lose data.

### パッケージ好きにとっての重要性

For package nerds, tcpsplit is the kind of single-purpose C utility that belongs near tcpdump and other pcap tools: it does one trace-management job and stays out of the way. Its value is less about popularity and more about preserving flow boundaries while making large captures tractable.

### タイムライン

- March 2025: tcpsplit 0.3 released with refactoring, IPv6 support, Linux cooked SLL2 support, and prefix options.
- Package metadata: tracked as a Homebrew formula.

### Related projects

- libpcap is the required trace-file dependency; tcpdump-style pcap captures are the practical input; VLAN and Linux cooked capture formats appear in the official ChangeLog as supported trace concerns.

### ソース

- <https://www.icir.org/mallman/>
- <https://www.icir.org/mallman/software/tcpsplit/>
- <https://www.icir.org/mallman/software/tcpsplit/ChangeLog>
- input source_facts.package-manager


## セキュリティノート

narrow executable package without higher-risk signals.

- **Geiger リスク:** グリーン / 低
- narrow executable package without higher-risk signals


## Combined YAML source

View the package source record on GitHub. [combined/tcpsplit.yml](https://github.com/mxcl/pkgdb/blob/main/combined/tcpsplit.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- cross-ecosystem install command graph