//sys	CloseRange(first uint, last uint, flags uint) (err error)
//sys	CopyFileRange(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
//sys	DeleteModule(name string, flags int) (err error)
//sys	Dup(oldfd int) (fd int, err error)

func Dup2(oldfd, newfd int) error {
	return Dup3(oldfd, newfd, 0)
}

//sys	Dup3(oldfd int, newfd int, flags int) (err error)

	runtime.ExitSyscall()
	fd = int(r0)
	if int64(r0) == -1 {
		err = errnoErr2(e1, e2)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Dup(oldfd int) (fd int, err error) {
	runtime.EnterSyscall()
	r0, e2, e1 := CallLeFuncWithErr(GetZosLibVec()+SYS_DUP<<4, uintptr(oldfd))
	runtime.ExitSyscall()
	fd = int(r0)
	if int64(r0) == -1 {
		err = errnoErr2(e1, e2)

	)

	// DuplicatedDomains tracks rejected VirtualServices due to duplicated hostname.
	DuplicatedDomains = monitoring.NewGauge(
		"pilot_vservice_dup_domain",
		"Virtual services with dup domains.",
	)

	// DuplicatedSubsets tracks duplicate subsets that we rejected while merging multiple destination rules for same host
	DuplicatedSubsets = monitoring.NewGauge(
		"pilot_destrule_subsets",

//sys	Chown(path string, uid int, gid int) (err error) = SYS___CHOWN_A
//sys	Chmod(path string, mode uint32) (err error) = SYS___CHMOD_A
//sys   Creat(path string, mode uint32) (fd int, err error) = SYS___CREAT_A
//sys	Dup(oldfd int) (fd int, err error)
//sys	Dup2(oldfd int, newfd int) (err error)
//sys	Dup3(oldfd int, newfd int, flags int) (err error) = SYS_DUP3
//sys	Dirfd(dirp uintptr) (fd int, err error) = SYS_DIRFD

	}
	idles := t.idleConn[key]
	if len(idles) >= t.maxIdleConnsPerHost() {
		return errTooManyIdleHost
	}
	for _, exist := range idles {
		if exist == pconn {
			log.Fatalf("dup idle pconn %p in freelist", pconn)
		}
	}
	t.idleConn[key] = append(idles, pconn)
	t.idleLRU.add(pconn)
	if t.MaxIdleConns != 0 && t.idleLRU.len() > t.MaxIdleConns {
		oldest := t.idleLRU.removeOldest()

pkg syscall (freebsd-386-cgo), func CmsgLen(int) int
pkg syscall (freebsd-386-cgo), func CmsgSpace(int) int
pkg syscall (freebsd-386-cgo), func Connect(int, Sockaddr) error
pkg syscall (freebsd-386-cgo), func Dup(int) (int, error)
pkg syscall (freebsd-386-cgo), func Dup2(int, int) error
pkg syscall (freebsd-386-cgo), func Fchdir(int) error
pkg syscall (freebsd-386-cgo), func Fchflags(int, int) error

pkg syscall (darwin-386), func CmsgLen(int) int
pkg syscall (darwin-386), func CmsgSpace(int) int
pkg syscall (darwin-386), func Connect(int, Sockaddr) error
pkg syscall (darwin-386), func Dup(int) (int, error)
pkg syscall (darwin-386), func Dup2(int, int) error
pkg syscall (darwin-386), func Exchangedata(string, string, int) error
pkg syscall (darwin-386), func Fchdir(int) error

- Added warning for dup ports update/patching in pod's container ports and service ports. ([#113245](https://github.com/kubernetes/kubernetes/pull/113245), [@pacoxu](https://github.com/pacoxu))

pkg syscall (netbsd-arm64-cgo), func CmsgSpace(int) int
pkg syscall (netbsd-arm64-cgo), func Connect(int, Sockaddr) error
pkg syscall (netbsd-arm64-cgo), func Dup2(int, int) error
pkg syscall (netbsd-arm64-cgo), func Dup(int) (int, error)
pkg syscall (netbsd-arm64-cgo), func Fchdir(int) error
pkg syscall (netbsd-arm64-cgo), func Fchflags(int, int) error
pkg syscall (netbsd-arm64-cgo), func Fchmod(int, uint32) error

pkg syscall (freebsd-arm64), func CmsgLen(int) int
pkg syscall (freebsd-arm64), func CmsgSpace(int) int
pkg syscall (freebsd-arm64), func Connect(int, Sockaddr) error
pkg syscall (freebsd-arm64), func Dup(int) (int, error)
pkg syscall (freebsd-arm64), func Dup2(int, int) error
pkg syscall (freebsd-arm64), func Fchdir(int) error
pkg syscall (freebsd-arm64), func Fchflags(int, int) error