You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: sysconf_netbsd.go
    path of file: ./repos/scan4all/vendor/github.com/tklauser/go-sysconf
    
    the code of the file until where you have to start completion: // Copyright 2018 Tobias Klauser. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package sysconf

import (
	"sync"

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

const (
	_HOST_NAME_MAX  = _MAXHOSTNAMELEN
	_LOGIN_NAME_MAX = _MAXLOGNAME + 1
	_SYMLOOP_MAX    = _MAXSYMLINKS

	_POSIX2_C_BIND    = 1
	_POSIX2_C_DEV     = -1
	_POSIX2_CHAR_TERM = -1
	_POSIX2_FORT_DEV  = -1
	_POSIX2_FORT_RUN  = -1
	_POSIX2_LOCALEDEF = -1
	_POSIX2_SW_DEV    = -1
	_POSIX2_UPE       = -1
)

var (
	clktck     int64
	clktckOnce sync.Once
)

func sysconfPOSIX(name int) (int64, error) {
	// NetBSD does not define all _POSIX_* values used in sysconf_posix.go
	// The supported ones are handled in sysconf below.
	return -1, errInvalid
}

func sysconf(name int) (int64, error) {
	// NetBSD uses sysctl to get some of these values. For the user.* namespace,
	// calls get handled by user_sysctl in /usr/src/lib/libc/gen/sysctl.c
	// Duplicate the relevant values here.

	switch name {

	// 1003.1
	case SC_ARG_MAX:
		return sysctl32("kern.argmax"), nil
	case SC_CHILD_MAX:
		var rlim unix.Rlimit
		if err := unix.Getrlimit(unix.RLIMIT_NPROC, &rlim); err == nil {
			if rlim.Cur != unix.RLIM_INFINITY {
				return int64(rlim.Cur), nil
			}
		}
		return -1, nil
	case SC_CLK_TCK:
		clktckOnce.Do(func() {
			clktck = -1
			if ci, err := unix.SysctlClockinfo("kern.clockrate"); err == nil {
				clktck = int64(ci.Hz)
			}
		})
		return clktck, nil
	case SC_NGROUPS_MAX:
		return sysctl32("kern.ngroups"), nil
	case SC_JOB_CONTROL:
		return sysctl32("kern.job_control"), nil
	case SC_OPEN_MAX:
		var rlim unix.Rlimit
		if err := unix.Getrlimit(unix.RLIMIT_NOFILE, &rlim); err == nil {
			return int64(rlim.Cur), nil
		}
		return -1, nil
	case SC_STREAM_MAX:
		// sysctl("user.stream_max")
		return _FOPEN_MAX, nil
	case SC_TZNAME_MAX:
		// sysctl("user.tzname_max")
		return _NAME_MAX, nil
	case SC_SAVED_IDS:
		return yesno(sysctl32("kern.saved_ids")), nil
	case SC_VERSION:
		return sysctl32("kern.posix1version"), nil

	// 1003.1b
	case SC_FSYNC:
		return sysctl32("kern.fsync"), nil
	case SC_SYNCHRONIZED_IO:
		return sysctl32("kern.synchronized_io"), nil
	case SC_MAPPED_FILES:
		return sysctl32("kern.mapped_files"), nil
	case SC_MEMLOCK:
		return sysctl32("kern.memlock"), nil
	case SC_MEMLOCK_RANGE:
		return sysctl32("kern.memlock_range"), nil
	case SC_MEMORY_PROTECTION:
		return sysctl32("kern.memory_protection"), nil
	case SC_MONOTONIC_CLOCK:
		return sysctl32("kern.monotonic_clock"), nil
	case SC_SEMAPHORES:
		return sysctl32("kern.posix_semaphores"), nil
	case SC_TIMERS:
		return sysctl32("kern.posix_timers"), nil

	// 1003.1c
	case SC_LOGIN_NAME_MAX:
		return sysctl32("kern.login_name_max"), nil
	case SC_THREADS:
		return sysctl32("kern.posix_threads"), nil

	// 1003.1j
	case SC_BARRIERS:
		return yesno(sysctl32("kern.posix_barriers")), nil
	case SC_SPIN_LOCKS:
		return yesno(sysctl32("kern.posix_spin_locks")), nil
	case SC_READER_WRITER_LOCKS:
		return yesno(sysctl32("kern.posix_reader_writer_locks")), nil

	// 1003.2
	case SC_2_VERSION:
		// sysctl user.posix2_version
		return _POSIX2_VERSION, nil
	case SC_2_C_BIND:
		// sysctl user.posix2_c_bind
		return _POSIX2_C_BIND, nil
	case SC_2_C_DEV:
		// sysctl user.posix2_c_dev
		return _POSIX2_C_DEV, nil
	case SC_2_CHAR_TERM:
		// sysctl user.posix2_char_term
		return _POSIX2_CHAR_TERM, nil
	case SC_2_FORT_DEV:
		// sysctl user.posix2_fort_dev
		return _POSIX2_FORT_DEV, nil
	case SC_2_FORT_RUN:
		// sysctl user.posix2_fort_run
		return _POSIX2_FORT_RUN, nil
	case SC_2_LOCALEDEF:
		// sysctl user.posix2_localedef
		return _POSIX2_LOCALEDEF, nil
	case SC_2_SW_DEV:
		// sysctl user.posix2_sw_dev
		return _POSIX2_SW_DEV, nil
	case SC_2_UPE:
		// sysctl user.posix2_upe
		return _POSIX2_UPE, nil

	// XPG 4.2
	case SC_IOV_MAX:
		return sysctl32("kern.iov_max"), nil
	case SC_XOPEN_SHM:
		return yesno(sysctl32("kern.ipc.sysvshm")), nil

	// 1003.1-2001, XSI Option Group
	case SC_AIO_LISTIO_MAX:
		return sysctl32("kern.aio_listio_max"), nil
	case SC_AIO_MAX:
		return sysctl32("kern.aio_max"), nil
	case SC_ASYNCHRONOUS_IO:
		return yesno(sysctl32("kern.posix_aio")), nil
	case SC_MESSAGE_PASSING:
		return yesno(sysctl32("kern.posix_msg")), nil
	case SC_MQ_OPEN_MAX:
		return sysctl32("kern.mqueue.mq_open_max"), nil
	case SC_MQ_PRIO_MAX:
		return sysctl32("kern.mqueue.mq_prio_
    
func sysconf(name int) (int64, error) {
	// NetBSD uses sysctl to get some of these values. For the user.* namespace,
	// calls get handled by user_sysctl in /usr/src/lib/libc/gen/sysctl.c
	// Duplicate the relevant values here.

	switch name {

	// 1003.1
	case SC_ARG_MAX:
		return sysctl32("kern.argmax"), nil
	case SC_CHILD_MAX:
		var rlim unix.Rlimit
		if err := unix.Getrlimit(unix.RLIMIT_NPROC, &rlim); err == nil {
			if rlim.Cur != unix.RLIM_INFINITY {
				return int64(rlim.Cur), nil
			}
		}
		return -1, nil
	case SC_CLK_TCK:
		clktckOnce.Do(func() {
			clktck = -1
			if ci, err := unix.SysctlClockinfo("kern.clockrate"); err == nil {
				clktck = int64(ci.Hz)
			}
		})
		return clktck, nil
	case SC_NGROUPS_MAX:
		return sysctl32("kern.ngroups"), nil
	case SC_JOB_CONTROL:
		return sysctl32("kern.job_control"), nil
	case SC_OPEN_MAX:
		var rlim unix.Rlimit
		if err := unix.Getrlimit(unix.RLIMIT_NOFILE, &rlim); err == nil {
			return int64(rlim.Cur), nil
		}
		return -1, nil
	case SC_STREAM_MAX:
		// sysctl("user.stream_max")
		return _FOPEN_MAX, nil
	case SC_TZNAME_MAX:
		// sysctl("user.tzname_max")
		return _NAME_MAX, nil
	case SC_SAVED_IDS:
		return yesno(sysctl32("kern.saved_ids")), nil
	case SC_VERSION:
		return sysctl32("kern.posix1version"), nil

	// 1003.1b
	case SC_FSYNC:
		return sysctl32("kern.fsync"), nil
	case SC_SYNCHRONIZED_IO:
		return sysctl32("kern.synchronized_io"), nil
	case SC_MAPPED_FILES:
		return sysctl32("kern.mapped_files"), nil
	case SC_MEMLOCK:
		return sysctl32("kern.memlock"), nil
	case SC_MEMLOCK_RANGE:
		return sysctl32("kern.memlock_range"), nil
	case SC_MEMORY_PROTECTION:
		return sysctl32("kern.memory_protection"), nil
	case SC_MONOTONIC_CLOCK:
		return sysctl32("kern.monotonic_clock"), nil
	case SC_SEMAPHORES:
		return sysctl32("kern.posix_semaphores"), nil
	case SC_TIMERS:
		return sysctl32("kern.posix_timers"), nil

	// 1003.1c
	case SC_LOGIN_NAME_MAX:
		return sysctl32("kern.login_name_max"), nil
	case SC_THREADS:
		return sysctl32("kern.posix_threads"), nil

	// 1003.1j
	case SC_BARRIERS:
		return yesno(sysctl32("kern.posix_barriers")), nil
	case SC_SPIN_LOCKS:
		return yesno(sysctl32("kern.posix_spin_locks")), nil
	case SC_READER_WRITER_LOCKS:
		return yesno(sysctl32("kern.posix_reader_writer_locks")), nil

	// 1003.2
	case SC_2_VERSION:
		// sysctl user.posix2_version
		return _POSIX2_VERSION, nil
	case SC_2_C_BIND:
		// sysctl user.posix2_c_bind
		return _POSIX2_C_BIND, nil
	case SC_2_C_DEV:
		// sysctl user.posix2_c_dev
		return _POSIX2_C_DEV, nil
	case SC_2_CHAR_TERM:
		// sysctl user.posix2_char_term
		return _POSIX2_CHAR_TERM, nil
	case SC_2_FORT_DEV:
		// sysctl user.posix2_fort_dev
		return _POSIX2_FORT_DEV, nil
	case SC_2_FORT_RUN:
		// sysctl user.posix2_fort_run
		return _POSIX2_FORT_RUN, nil
	case SC_2_LOCALEDEF:
		// sysctl user.posix2_localedef
		return _POSIX2_LOCALEDEF, nil
	case SC_2_SW_DEV:
		// sysctl user.posix2_sw_dev
		return _POSIX2_SW_DEV, nil
	case SC_2_UPE:
		// sysctl user.posix2_upe
		return _POSIX2_UPE, nil

	// XPG 4.2
	case SC_IOV_MAX:
		return sysctl32("kern.iov_max"), nil
	case SC_XOPEN_SHM:
		return yesno(sysctl32("kern.ipc.sysvshm")), nil

	// 1003.1-2001, XSI Option Group
	case SC_AIO_LISTIO_MAX:
		return sysctl32("kern.aio_listio_max"), nil
	case SC_AIO_MAX:
		return sysctl32("kern.aio_max"), nil
	case SC_ASYNCHRONOUS_IO:
		return yesno(sysctl32("kern.posix_aio")), nil
	case SC_MESSAGE_PASSING:
		return yesno(sysctl32("kern.posix_msg")), nil
	case SC_MQ_OPEN_MAX:
		return sysctl32("kern.mqueue.mq_open_max"), nil
	case SC_MQ_PRIO_MAX:
		return sysctl32("kern.mqueue.mq_prio_max"), nil
	case SC_PRIORITY_SCHEDULING:
		return yesno(sysctl32("kern.posix_sched")), nil
	case SC_ATEXIT_MAX:
		// sysctl("user.atexit_max")
		return -1, nil // TODO

	// 1003.1-2001, TSF
	case SC_GETGR_R_SIZE_MAX:
		return _GETGR_R_SIZE_MAX, nil
	case SC_GETPW_R_SIZE_MAX:
		return _GETPW_R_SIZE_MAX, nil

	// Unsorted
	case SC_HOST_NAME_MAX:
		return _MAXHOSTNAMELEN, nil
	case SC_PASS_MAX:
		return _PASSWORD_LEN, nil
	case SC_REGEXP:
		return _POSIX_REGEXP, nil
	case SC_SHARED_MEMORY_OBJECTS:
		return _POSIX_SHARED_MEMORY_OBJECTS, nil
	case SC_SHELL:
		return _POSIX_SHELL, nil
	case SC_SPAWN:
		return _POSIX_SPAWN, nil

	// Extensions
	case SC_NPROCESSORS_CONF:
		return sysctl32("hw.ncpu"), nil
	case SC_NPROCESSORS_ONLN:
		return sysctl32("hw.ncpuonline"), nil

	// Linux/Solaris
	case SC_PHYS_PAGES:
		return sysctl64("hw.physmem64") / int64(unix.Getpagesize()), nil

	// Native
	case SC_SCHED_RT_TS:
		return sysctl32("kern.sched.rtts"), nil
	case SC_SCHED_PRI_MIN:
		return sysctl32("kern.sched.pri_min"), nil
	case SC_SCHED_PRI_MAX:
		return sysctl32("kern.sched.pri_max"), nil
	case SC_THREAD_DESTRUCTOR_ITERATIONS:
		return _POSIX_THREAD_DESTRUCTOR_ITERATIONS, nil
	case SC_THREAD_KEYS_MAX:
		return _POSIX_THREAD_KEYS_MAX, nil
	case SC_THREAD_STACK_MIN:
		return int64(unix.Getpagesize()), nil
	case SC_THREAD_THREADS_MAX:
		return sysctl32("kern.maxproc"), nil
	case SC_THREAD_ATTR_STACKADDR:
		return _POSIX_THREAD_ATTR_STACKADDR, nil
	case SC_THREAD_ATTR_STACKSIZE:
		return _POSIX_THREAD_ATTR_STACKSIZE, nil
	case SC_THREAD_SAFE_FUNCTIONS:
		return _POSIX_THREAD_SAFE_FUNCTIONS, nil
	case SC_THREAD_PRIO_PROTECT:
		return _POSIX_THREAD_PRIO_PROTECT, nil
	case SC_THREAD_PRIORITY_SCHEDULING,
		SC_THREAD_PRIO_INHERIT,
		SC_THREAD_PROCESS_SHARED:
		return -1, nil
	case SC_TTY_NAME_MAX:
		return pathconf(_PATH_DEV, _PC_NAME_MAX), nil
	case SC_TIMER_MAX:
		return _POSIX_TIMER_MAX, nil
	case SC_SEM_NSEMS_MAX:
		return _LONG_MAX, nil
	case SC_CPUTIME:
		return _POSIX_CPUTIME, nil
	case SC_THREAD_CPUTIME:
		return _POSIX_THREAD_CPUTIME, nil
	case SC_DELAYTIMER_MAX:
		return _POSIX_DELAYTIMER_MAX, nil
	case SC_SIGQUEUE_MAX:
		return _POSIX_SIGQUEUE_MAX, nil
	case SC_REALTIME_SIGNALS:
		return 200112, nil
	}

	return sysconfGeneric(name)
}