cybozu-go / netutil

Add-ons for Go networking

Add-ons for networking

This package overrides a package of the same name.

Features

• Functions for IPv4/v6 address calculations.
• Functions to identify network errors.
• Functions for TLS constants.
• Utilities for TCP keep-alive.
• Interface to half-close connections.
• golang.org/x/net/netutil functions.

Usage

Read the documentation.

License

netutil is licensed under the Apache License, Version 2.0.

netutil's Issues

build: github.com/cybozu-go/[email protected]/mtu.go:14:17: undefined: netlink.RouteGet on macOS

Today, we pulled the latest version into my project and got the following error:

github.com/cybozu-go/netutil
# github.com/cybozu-go/netutil
../../../../pkg/mod/github.com/cybozu-go/[email protected]/mtu.go:14:17: undefined: netlink.RouteGet
../../../../pkg/mod/github.com/cybozu-go/[email protected]/mtu.go:16:17: undefined: netlink.RouteGet

go env

GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="<REDACTED>"
GOENV="<REDACTED>"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOINSECURE=""
GOMODCACHE="<REDACTED>"
GONOPROXY="<REDACTED>"
GONOSUMDB="<REDACTED>"
GOOS="darwin"
GOPATH="<REDACTED>"
GOPRIVATE="<REDACTED>"
GOPROXY="<REDACTED>"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/darwin_amd64"
GOVCS=""
GOVERSION="go1.16"
GCCGO="gccgo"
AR="ar"
CC="clang"
CXX="clang++"
CGO_ENABLED="1"
GOMOD="<REDACTED>"
CGO_CFLAGS="<REDACTED>"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="<REDACTED>"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="<REDACTED>"

Possible cause

netlink.RouteGet is defined behind +linux build tag but https://github.com/cybozu-go/netutil/blob/v1.4.0/mtu.go#L14 refers to it without the buildtag.

Currently, non-linux environments (e.g. macOS) are unable to compile the module.

dummy for add a new label and all Neco related repos