limitations under the License.
*/

package filesystem

import (
	"fmt"
	"os"
	"path/filepath"
)

// IsUnixDomainSocket returns whether a given file is a AF_UNIX socket file
func IsUnixDomainSocket(filePath string) (bool, error) {
	fi, err := os.Stat(filePath)
	if err != nil {
		return false, fmt.Errorf("stat file %s failed: %v", filePath, err)
	}

			return nil, errMissingAddress
		}
	case "listen":
	default:
		return nil, errors.New("unknown mode: " + mode)
	}

	fd, err := socket(ctx, net, syscall.AF_UNIX, sotype, 0, false, laddr, raddr, ctxCtrlFn)
	if err != nil {
		return nil, err
	}
	return fd, nil
}

func sockaddrToUnix(sa syscall.Sockaddr) Addr {
	if s, ok := sa.(*syscall.SockaddrUnix); ok {

	socketDialRetryPeriod = 1 * time.Second
	// Overall timeout value to dial a Unix domain socket, including retries
	socketDialTimeout = 4 * time.Second
)

// IsUnixDomainSocket returns whether a given file is a AF_UNIX socket file
// Note that due to the retry logic inside, it could take up to 4 seconds
// to determine whether or not the file path supplied is a Unix domain socket
func IsUnixDomainSocket(filePath string) (bool, error) {

// Constant expected by package but not supported
const (
	_ = iota
	TIOCSCTTY
	SYS_EXECVE
	SYS_FCNTL
)

const (
	F_DUPFD_CLOEXEC = 0
	// AF_LOCAL doesn't exist on AIX
	AF_LOCAL = AF_UNIX

	_F_DUP2FD_CLOEXEC = 0
)

func (ts *StTimespec_t) Unix() (sec int64, nsec int64) {
	return int64(ts.Sec), int64(ts.Nsec)
}

func (ts *StTimespec_t) Nano() int64 {

	AF_INTF                         = 20
	AF_IUCV                         = 17
	AF_LAT                          = 14
	AF_LINK                         = 18
	AF_LOCAL                        = AF_UNIX // AF_LOCAL is an alias for AF_UNIX
	AF_MAX                          = 30
	AF_NBS                          = 7
	AF_NDD                          = 23
	AF_NETWARE                      = 22
	AF_NS                           = 6

	name := sa.Name
	n := len(name)
	if n > len(sa.raw.Path) {
		return nil, 0, EINVAL
	}
	if n == len(sa.raw.Path) && name[0] != '@' {
		return nil, 0, EINVAL
	}
	sa.raw.Family = AF_UNIX
	for i := 0; i < n; i++ {
		sa.raw.Path[i] = int8(name[i])
	}
	// length is family (uint16), name, NUL.
	sl := _Socklen(2)
	if n > 0 {
		sl += _Socklen(n) + 1
	}

#include <sys/protosw.h>
#include <sys/stropts.h>
#include <sys/mman.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/termio.h>
#include <termios.h>
#include <fcntl.h>

#define AF_LOCAL AF_UNIX
'

includes_Darwin='
#define _DARWIN_C_SOURCE
#define KERNEL 1
#define _DARWIN_USE_64_BIT_INODE
#define __APPLE_USE_RFC_3542
#include <stdint.h>
#include <sys/attr.h>
#include <sys/clonefile.h>

	AF_POLICY                     = 0x1d
	AF_PUP                        = 0x4
	AF_ROUTE                      = 0x18
	AF_SNA                        = 0xb
	AF_TRILL                      = 0x1f
	AF_UNIX                       = 0x1
	AF_UNSPEC                     = 0x0
	AF_X25                        = 0x14
	ARPHRD_ARCNET                 = 0x7
	ARPHRD_ATM                    = 0x10
	ARPHRD_AX25                   = 0x3

	sa.raw.Family = AF_UNIX
	for i := 0; i < n; i++ {
		sa.raw.Path[i] = int8(name[i])
	}
	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
}

func anyToSockaddr(_ int, rsa *RawSockaddrAny) (Sockaddr, error) {
	// TODO(neeilan): Implement use of first param (fd)
	switch rsa.Addr.Family {
	case AF_UNIX:
		pp := (*RawSockaddrUnix)(unsafe.Pointer(rsa))

	AF_SECURITY                                 = 0xe
	AF_SMC                                      = 0x2b
	AF_SNA                                      = 0x16
	AF_TIPC                                     = 0x1e
	AF_UNIX                                     = 0x1
	AF_UNSPEC                                   = 0x0
	AF_VSOCK                                    = 0x28
	AF_WANPIPE                                  = 0x19