// Copyright 2018 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 || dragonfly || freebsd || (js && wasm) || linux || netbsd || openbsd || solaris || wasip1

package poll

import "syscall"

// Fsync wraps syscall.Fsync.
func (fd *FD) Fsync() error {
	if err := fd.incref(); err != nil {
		return err
	}
	defer fd.decref()

// Copyright 2009 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 || (js && wasm) || netbsd || openbsd || wasip1

package os

import "syscall"

func hostname() (name string, err error) {
	name, err = syscall.Sysctl("kern.hostname")
	if err != nil {
		return "", NewSyscallError("sysctl kern.hostname", err)
	}

// Copyright 2023 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 || illumos || netbsd || openbsd || solaris

package runtime

// secureMode is only ever mutated in schedinit, so we don't need to worry about
// synchronization primitives.
var secureMode bool

func initSecureMode() {
	secureMode = issetugid() == 1

		exit 1
		;;
	esac
}

assert_is_supported_os() {
	case "${KNAME}" in
	Linux | FreeBSD | OpenBSD | NetBSD | DragonFly | SunOS)
		return
		;;
	Darwin)
		osx_host_version=$(env sw_vers -productVersion)
		if ! check_minimum_version "${OSX_VERSION}" "${osx_host_version}"; then

// Copyright 2018 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 syscall

import "unsafe"

// FcntlFlock performs a fcntl syscall for the [F_GETLK], [F_SETLK] or [F_SETLKW] command.
func FcntlFlock(fd uintptr, cmd int, lk *Flock_t) error {

// 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 nettest

import "syscall"

func supportsRawSocket() bool {
	for _, af := range []int{syscall.AF_INET, syscall.AF_INET6} {
		s, err := syscall.Socket(af, syscall.SOCK_RAW, 0)

		*h = Haix
	case "darwin", "ios":
		*h = Hdarwin
	case "dragonfly":
		*h = Hdragonfly
	case "freebsd":
		*h = Hfreebsd
	case "js":
		*h = Hjs
	case "linux", "android":
		*h = Hlinux
	case "netbsd":
		*h = Hnetbsd
	case "openbsd":
		*h = Hopenbsd
	case "plan9":
		*h = Hplan9
	case "illumos", "solaris":
		*h = Hsolaris
	case "wasip1":
		*h = Hwasip1
	case "windows":
		*h = Hwindows
	default:

pkg syscall (netbsd-386), func CheckBpfVersion //deprecated
pkg syscall (netbsd-386), func FlushBpf //deprecated
pkg syscall (netbsd-386), func ParseRoutingMessage //deprecated
pkg syscall (netbsd-386), func ParseRoutingSockaddr //deprecated
pkg syscall (netbsd-386), func RouteRIB //deprecated
pkg syscall (netbsd-386), func SetBpf //deprecated
pkg syscall (netbsd-386), func SetBpfBuflen //deprecated

// 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 !linux && !netbsd && !openbsd && arm64

package cpu

// run -race -gcflags=all=-d=checkptr=0

//go:build ((linux && amd64) || (linux && ppc64le) || (darwin && amd64) || (freebsd && amd64) || (netbsd && amd64) || (windows && amd64)) && cgo

// Copyright 2021 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.

// Although -race turns on -d=checkptr, the explicit -d=checkptr=0
// should override it.

package main