435c0d9fc8
This PR switches the Nomad repository from using govendor to Go modules for managing dependencies. Aspects of the Nomad workflow remain pretty much the same. The usual Makefile targets should continue to work as they always did. The API submodule simply defers to the parent Nomad version on the repository, keeping the semantics of API versioning that currently exists.
78 lines
1.6 KiB
Go
78 lines
1.6 KiB
Go
// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ipv4
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import (
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"errors"
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"net"
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"runtime"
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"golang.org/x/net/internal/socket"
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)
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var (
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errInvalidConn = errors.New("invalid connection")
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errMissingAddress = errors.New("missing address")
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errNilHeader = errors.New("nil header")
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errHeaderTooShort = errors.New("header too short")
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errExtHeaderTooShort = errors.New("extension header too short")
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errInvalidConnType = errors.New("invalid conn type")
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errNotImplemented = errors.New("not implemented on " + runtime.GOOS + "/" + runtime.GOARCH)
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// See https://www.freebsd.org/doc/en/books/porters-handbook/versions.html.
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freebsdVersion uint32
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compatFreeBSD32 bool // 386 emulation on amd64
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)
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// See golang.org/issue/30899.
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func adjustFreeBSD32(m *socket.Message) {
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// FreeBSD 12.0-RELEASE is affected by https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=236737
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if 1200086 <= freebsdVersion && freebsdVersion < 1201000 {
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l := (m.NN + 4 - 1) &^ (4 - 1)
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if m.NN < l && l <= len(m.OOB) {
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m.NN = l
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}
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}
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}
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func boolint(b bool) int {
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if b {
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return 1
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}
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return 0
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}
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func netAddrToIP4(a net.Addr) net.IP {
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switch v := a.(type) {
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case *net.UDPAddr:
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if ip := v.IP.To4(); ip != nil {
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return ip
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}
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case *net.IPAddr:
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if ip := v.IP.To4(); ip != nil {
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return ip
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}
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}
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return nil
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}
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func opAddr(a net.Addr) net.Addr {
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switch a.(type) {
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case *net.TCPAddr:
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if a == nil {
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return nil
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}
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case *net.UDPAddr:
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if a == nil {
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return nil
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}
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case *net.IPAddr:
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if a == nil {
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return nil
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}
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}
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return a
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}
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