サンプル

caddy.ParseNetworkAddress requires single-slash network prefixes and leading colons for port-only addresses, parsing bare numbers as hostnames with port 0.

sha256:26d7a22ad0a41327766bd4c63ce797d8491e71f27b23e43ff0a0e8d96ea56bdf

ケース

ゴール

caddy.ParseNetworkAddress requires single-slash network prefixes and leading colons for port-only addresses, parsing bare numbers as hostnames with port 0. HOW

パッケージ

github.com/caddyserver/caddy/v2 v2.11.4

環境

go

作成日

2026-08-18T01:22:37Z

よくある思い込み

A bare numeric address like "8080" configures listening port 8080, and URI schemes like "tcp://localhost:2019" parse as standard TCP addresses.

このサンプルの作者が、ここで開発者やモデルが期待するであろうこととして記録したもの。下の契約が実際に実行されたものだ。

コントラクト

• caddy.ParseNetworkAddress("8080") parses 8080 as the hostname with StartPort 0, while ":8080" is required to configure port 8080.
• caddy.ParseNetworkAddress("tcp://localhost:2019") splits on the first slash and sets Network to "tcp:" with a trailing colon and Host to "/localhost".
• caddy.ParseNetworkAddress("unix/data/socket.sock") sets Network to "unix" and Host to "data/socket.sock" with IsUnixNetwork true and StartPort 0.
• caddy.ParseNetworkAddress("localhost:8080-8085") parses a contiguous port range where StartPort is 8080, EndPort is 8085, and PortRangeSize is 6.
• caddy.ParseNetworkAddress("localhost:8085-8080") fails with "end port must not be less than start port".
• caddy.ParseNetworkAddress("localhost:99999") fails with a port value out of range error.
• caddy.ParseNetworkAddressWithDefaults("localhost", "tcp", 2019) applies the default port to return host "localhost" with StartPort 2019.

ファイル

• NOTES.md
• csx.json
• go.mod
• go.sum
• network_address_test.go

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

• go 1.26 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-18 · ed25519:d91480838ac982c9