fmt.Printf("readlink(%q) = %q, %v\n", fdfile, link, err)

		var args []string
		switch runtime.GOOS {
		case "plan9":
			args = []string{fmt.Sprintf("/proc/%d/fd", os.Getpid())}
		case "aix", "solaris", "illumos":
			args = []string{fmt.Sprint(os.Getpid())}
		default:
			args = []string{"-p", fmt.Sprint(os.Getpid())}
		}

		// Determine which command to use to display open files.
		ofcmd := "lsof"
		switch runtime.GOOS {

const _sunosMAP_NORESERVE = 0x40

func sysReserveOS(v unsafe.Pointer, n uintptr) unsafe.Pointer {
	flags := int32(_MAP_ANON | _MAP_PRIVATE)
	if GOOS == "solaris" || GOOS == "illumos" {
		// Be explicit that we don't want to reserve swap space
		// for PROT_NONE anonymous mappings. This avoids an issue
		// wherein large mappings can cause fork to fail.
		flags |= _sunosMAP_NORESERVE
	}

// 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 || illumos || linux || netbsd || openbsd

package filelock

import (
	"io/fs"
	"syscall"
)

type lockType int16

const (
	readLock  lockType = syscall.LOCK_SH
	writeLock lockType = syscall.LOCK_EX
)

// 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

func addMaxRSS(w io.Writer) {
	var rssToBytes uintptr
	switch runtime.GOOS {
	case "aix", "android", "dragonfly", "freebsd", "linux", "netbsd", "openbsd":
		rssToBytes = 1024
	case "darwin", "ios":
		rssToBytes = 1
	case "illumos", "solaris":
		rssToBytes = uintptr(syscall.Getpagesize())
	default:
		panic("unsupported OS")
	}

	var rusage syscall.Rusage
	err := syscall.Getrusage(syscall.RUSAGE_SELF, &rusage)
	if err == nil {

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

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

package user

/*
#include <unistd.h>
#include <sys/types.h>
#include <grp.h>

static int mygetgrouplist(const char* user, gid_t group, gid_t* groups, int* ngroups) {

#if defined(__GLIBC__) || (defined(__sun) && !defined(__illumos__))
	// pthread_getattr_np is a GNU extension supported in glibc.
	// Solaris is not glibc but does support pthread_getattr_np
	// (and the fallback doesn't work...). Illumos does not.
	pthread_getattr_np(pthread_self(), &attr);  // GNU extension
	pthread_attr_getstack(&attr, &addr, &size); // low address
#elif defined(__illumos__)
	pthread_attr_get_np(pthread_self(), &attr);

		//     is returned by a single call to getrandom() on systems where int
		//     has a size of 32 bits.
		maxGetRandomRead = (1 << 25) - 1
	case "dragonfly", "freebsd", "illumos", "solaris":
		maxGetRandomRead = 1 << 8
	default:
		panic("no maximum specified for GetRandom")
	}
	altGetRandom = batched(getRandom, maxGetRandomRead)
}

// 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 aix || dragonfly || freebsd || illumos || linux || netbsd

package net

import (
	"runtime"
	"syscall"
	"time"
)

func setKeepAliveIdle(fd *netFD, d time.Duration) error {
	if d == 0 {
		d = defaultTCPKeepAliveIdle
	} else if d < 0 {
		return nil
	}

// Copyright 2024 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 || illumos || linux || netbsd || windows

package net

import "time"

var testConfigs = []KeepAliveConfig{
	{
		Enable:   true,
		Idle:     5 * time.Second,
		Interval: 3 * time.Second,
		Count:    10,
	},
	{