// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build (cgo || darwin) && !osusergo && (darwin || dragonfly || freebsd || (linux && !android) || netbsd || openbsd || (solaris && !illumos))

package user

import (
	"fmt"
	"strconv"
	"unsafe"
)

const maxGroups = 2048

func listGroups(u *User) ([]string, error) {
	ug, err := strconv.Atoi(u.Gid)

// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build darwin || dragonfly || freebsd || netbsd

package route

import (
	"runtime"
	"syscall"
)

func (m *RouteMessage) marshal() ([]byte, error) {
	w, ok := wireFormats[m.Type]
	if !ok {
		return nil, errUnsupportedMessage
	}
	l := w.bodyOff + addrsSpace(m.Addrs)

//
//	Darwin    unlimited
//	DragonFly   1000000 (vm.max_proc_mmap)
//	FreeBSD   unlimited
//	Linux         65530 (vm.max_map_count) // TODO: query /proc/sys/vm/max_map_count?
//	NetBSD    unlimited
//	OpenBSD   unlimited
var mmapLimit int32 = 1<<31 - 1

func init() {
	// Linux is the only practically concerning OS.
	if runtime.GOOS == "linux" {
		mmapLimit = 30000
	}
}

// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build darwin || dragonfly || freebsd || netbsd || openbsd

package route

// An InterfaceMessage represents an interface message.
type InterfaceMessage struct {
	Version int    // message version
	Type    int    // message type
	Flags   int    // interface flags

	ifam.parse = ifam.parseInterfaceAddrMessage
	ifanm := &wireFormat{extOff: sizeofIfAnnouncemsghdrNetBSD7, bodyOff: sizeofIfAnnouncemsghdrNetBSD7}
	ifanm.parse = ifanm.parseInterfaceAnnounceMessage
	// NetBSD 6 and above kernels require 64-bit aligned access to
	// routing facilities.
	return 8, map[int]*wireFormat{
		syscall.RTM_ADD:        rtm,
		syscall.RTM_DELETE:     rtm,
		syscall.RTM_CHANGE:     rtm,

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos

package term

import (
	"golang.org/x/sys/unix"
)

type state struct {
	termios unix.Termios
}

func isTerminal(fd int) bool {

		default:
			args = []string{"-p", fmt.Sprint(os.Getpid())}
		}

		// Determine which command to use to display open files.
		ofcmd := "lsof"
		switch runtime.GOOS {
		case "dragonfly", "freebsd", "netbsd", "openbsd":
			ofcmd = "fstat"
		case "plan9":
			ofcmd = "/bin/cat"
		case "aix":
			ofcmd = "procfiles"
		case "solaris", "illumos":
			ofcmd = "pfiles"
		}

		cmd := exec.Command(ofcmd, args...)

// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build dragonfly || freebsd || netbsd || openbsd || solaris

package runtime

import (
	"unsafe"
)

// Don't split the stack as this function may be invoked without a valid G,
// which prevents us from allocating more stack.
//
//go:nosplit

// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build darwin || dragonfly || freebsd || netbsd || openbsd

package net

import (
	"os"
	"runtime"
	"syscall"
)

func setDefaultSockopts(s, family, sotype int, ipv6only bool) error {
	if runtime.GOOS == "dragonfly" && sotype != syscall.SOCK_RAW {

	out.Write32(namesz)
	out.Write32(descsz)
	out.Write32(tag)

	return sh
}

// NetBSD Signature (as per sys/exec_elf.h)
const (
	ELF_NOTE_NETBSD_NAMESZ  = 7
	ELF_NOTE_NETBSD_DESCSZ  = 4
	ELF_NOTE_NETBSD_TAG     = 1
	ELF_NOTE_NETBSD_VERSION = 700000000 /* NetBSD 7.0 */
)

var ELF_NOTE_NETBSD_NAME = []byte("NetBSD\x00")

func elfnetbsdsig(sh *ElfShdr, startva uint64, resoff uint64) int {