common.go

// Copyright (c) 2023 Paweł Gaczyński
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package gain

import (
	"syscall"
	_ "unsafe" //nolint:revive // it is required for go:linkname directive
)

type void struct{}

var member void

const uint64Size = 64

func createClientAddr() (*syscall.RawSockaddrAny, *uint32) {
	clientAddrLen := new(uint32)
	clientAddr := &syscall.RawSockaddrAny{}
	*clientAddrLen = syscall.SizeofSockaddrAny

	return clientAddr, clientAddrLen
}

//go:linkname anyToSockaddr syscall.anyToSockaddr
func anyToSockaddr(rsa *syscall.RawSockaddrAny) (syscall.Sockaddr, error)

func boolToInt(b bool) int {
	if b {
		return 1
	}

	return 0
}