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Source file src/syscall/types_windows.go

Documentation: syscall

     1  // Copyright 2011 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package syscall
     6  
     7  const (
     8  	// Windows errors.
     9  	ERROR_FILE_NOT_FOUND      Errno = 2
    10  	ERROR_PATH_NOT_FOUND      Errno = 3
    11  	ERROR_ACCESS_DENIED       Errno = 5
    12  	ERROR_NO_MORE_FILES       Errno = 18
    13  	ERROR_HANDLE_EOF          Errno = 38
    14  	ERROR_NETNAME_DELETED     Errno = 64
    15  	ERROR_FILE_EXISTS         Errno = 80
    16  	ERROR_BROKEN_PIPE         Errno = 109
    17  	ERROR_BUFFER_OVERFLOW     Errno = 111
    18  	ERROR_INSUFFICIENT_BUFFER Errno = 122
    19  	ERROR_MOD_NOT_FOUND       Errno = 126
    20  	ERROR_PROC_NOT_FOUND      Errno = 127
    21  	ERROR_DIR_NOT_EMPTY       Errno = 145
    22  	ERROR_ALREADY_EXISTS      Errno = 183
    23  	ERROR_ENVVAR_NOT_FOUND    Errno = 203
    24  	ERROR_MORE_DATA           Errno = 234
    25  	ERROR_OPERATION_ABORTED   Errno = 995
    26  	ERROR_IO_PENDING          Errno = 997
    27  	ERROR_NOT_FOUND           Errno = 1168
    28  	ERROR_PRIVILEGE_NOT_HELD  Errno = 1314
    29  	WSAEACCES                 Errno = 10013
    30  	WSAECONNABORTED           Errno = 10053
    31  	WSAECONNRESET             Errno = 10054
    32  )
    33  
    34  const (
    35  	// Invented values to support what package os expects.
    36  	O_RDONLY   = 0x00000
    37  	O_WRONLY   = 0x00001
    38  	O_RDWR     = 0x00002
    39  	O_CREAT    = 0x00040
    40  	O_EXCL     = 0x00080
    41  	O_NOCTTY   = 0x00100
    42  	O_TRUNC    = 0x00200
    43  	O_NONBLOCK = 0x00800
    44  	O_APPEND   = 0x00400
    45  	O_SYNC     = 0x01000
    46  	O_ASYNC    = 0x02000
    47  	O_CLOEXEC  = 0x80000
    48  )
    49  
    50  const (
    51  	// More invented values for signals
    52  	SIGHUP  = Signal(0x1)
    53  	SIGINT  = Signal(0x2)
    54  	SIGQUIT = Signal(0x3)
    55  	SIGILL  = Signal(0x4)
    56  	SIGTRAP = Signal(0x5)
    57  	SIGABRT = Signal(0x6)
    58  	SIGBUS  = Signal(0x7)
    59  	SIGFPE  = Signal(0x8)
    60  	SIGKILL = Signal(0x9)
    61  	SIGSEGV = Signal(0xb)
    62  	SIGPIPE = Signal(0xd)
    63  	SIGALRM = Signal(0xe)
    64  	SIGTERM = Signal(0xf)
    65  )
    66  
    67  var signals = [...]string{
    68  	1:  "hangup",
    69  	2:  "interrupt",
    70  	3:  "quit",
    71  	4:  "illegal instruction",
    72  	5:  "trace/breakpoint trap",
    73  	6:  "aborted",
    74  	7:  "bus error",
    75  	8:  "floating point exception",
    76  	9:  "killed",
    77  	10: "user defined signal 1",
    78  	11: "segmentation fault",
    79  	12: "user defined signal 2",
    80  	13: "broken pipe",
    81  	14: "alarm clock",
    82  	15: "terminated",
    83  }
    84  
    85  const (
    86  	GENERIC_READ    = 0x80000000
    87  	GENERIC_WRITE   = 0x40000000
    88  	GENERIC_EXECUTE = 0x20000000
    89  	GENERIC_ALL     = 0x10000000
    90  
    91  	FILE_LIST_DIRECTORY   = 0x00000001
    92  	FILE_APPEND_DATA      = 0x00000004
    93  	FILE_WRITE_ATTRIBUTES = 0x00000100
    94  
    95  	FILE_SHARE_READ              = 0x00000001
    96  	FILE_SHARE_WRITE             = 0x00000002
    97  	FILE_SHARE_DELETE            = 0x00000004
    98  	FILE_ATTRIBUTE_READONLY      = 0x00000001
    99  	FILE_ATTRIBUTE_HIDDEN        = 0x00000002
   100  	FILE_ATTRIBUTE_SYSTEM        = 0x00000004
   101  	FILE_ATTRIBUTE_DIRECTORY     = 0x00000010
   102  	FILE_ATTRIBUTE_ARCHIVE       = 0x00000020
   103  	FILE_ATTRIBUTE_NORMAL        = 0x00000080
   104  	FILE_ATTRIBUTE_REPARSE_POINT = 0x00000400
   105  
   106  	INVALID_FILE_ATTRIBUTES = 0xffffffff
   107  
   108  	CREATE_NEW        = 1
   109  	CREATE_ALWAYS     = 2
   110  	OPEN_EXISTING     = 3
   111  	OPEN_ALWAYS       = 4
   112  	TRUNCATE_EXISTING = 5
   113  
   114  	FILE_FLAG_OPEN_REPARSE_POINT = 0x00200000
   115  	FILE_FLAG_BACKUP_SEMANTICS   = 0x02000000
   116  	FILE_FLAG_OVERLAPPED         = 0x40000000
   117  
   118  	HANDLE_FLAG_INHERIT    = 0x00000001
   119  	STARTF_USESTDHANDLES   = 0x00000100
   120  	STARTF_USESHOWWINDOW   = 0x00000001
   121  	DUPLICATE_CLOSE_SOURCE = 0x00000001
   122  	DUPLICATE_SAME_ACCESS  = 0x00000002
   123  
   124  	STD_INPUT_HANDLE  = -10
   125  	STD_OUTPUT_HANDLE = -11
   126  	STD_ERROR_HANDLE  = -12
   127  
   128  	FILE_BEGIN   = 0
   129  	FILE_CURRENT = 1
   130  	FILE_END     = 2
   131  
   132  	LANG_ENGLISH       = 0x09
   133  	SUBLANG_ENGLISH_US = 0x01
   134  
   135  	FORMAT_MESSAGE_ALLOCATE_BUFFER = 256
   136  	FORMAT_MESSAGE_IGNORE_INSERTS  = 512
   137  	FORMAT_MESSAGE_FROM_STRING     = 1024
   138  	FORMAT_MESSAGE_FROM_HMODULE    = 2048
   139  	FORMAT_MESSAGE_FROM_SYSTEM     = 4096
   140  	FORMAT_MESSAGE_ARGUMENT_ARRAY  = 8192
   141  	FORMAT_MESSAGE_MAX_WIDTH_MASK  = 255
   142  
   143  	MAX_PATH      = 260
   144  	MAX_LONG_PATH = 32768
   145  
   146  	MAX_COMPUTERNAME_LENGTH = 15
   147  
   148  	TIME_ZONE_ID_UNKNOWN  = 0
   149  	TIME_ZONE_ID_STANDARD = 1
   150  
   151  	TIME_ZONE_ID_DAYLIGHT = 2
   152  	IGNORE                = 0
   153  	INFINITE              = 0xffffffff
   154  
   155  	WAIT_TIMEOUT   = 258
   156  	WAIT_ABANDONED = 0x00000080
   157  	WAIT_OBJECT_0  = 0x00000000
   158  	WAIT_FAILED    = 0xFFFFFFFF
   159  
   160  	CREATE_NEW_PROCESS_GROUP   = 0x00000200
   161  	CREATE_UNICODE_ENVIRONMENT = 0x00000400
   162  
   163  	PROCESS_TERMINATE         = 1
   164  	PROCESS_QUERY_INFORMATION = 0x00000400
   165  	SYNCHRONIZE               = 0x00100000
   166  
   167  	PAGE_READONLY          = 0x02
   168  	PAGE_READWRITE         = 0x04
   169  	PAGE_WRITECOPY         = 0x08
   170  	PAGE_EXECUTE_READ      = 0x20
   171  	PAGE_EXECUTE_READWRITE = 0x40
   172  	PAGE_EXECUTE_WRITECOPY = 0x80
   173  
   174  	FILE_MAP_COPY    = 0x01
   175  	FILE_MAP_WRITE   = 0x02
   176  	FILE_MAP_READ    = 0x04
   177  	FILE_MAP_EXECUTE = 0x20
   178  
   179  	CTRL_C_EVENT        = 0
   180  	CTRL_BREAK_EVENT    = 1
   181  	CTRL_CLOSE_EVENT    = 2
   182  	CTRL_LOGOFF_EVENT   = 5
   183  	CTRL_SHUTDOWN_EVENT = 6
   184  )
   185  
   186  const (
   187  	// flags for CreateToolhelp32Snapshot
   188  	TH32CS_SNAPHEAPLIST = 0x01
   189  	TH32CS_SNAPPROCESS  = 0x02
   190  	TH32CS_SNAPTHREAD   = 0x04
   191  	TH32CS_SNAPMODULE   = 0x08
   192  	TH32CS_SNAPMODULE32 = 0x10
   193  	TH32CS_SNAPALL      = TH32CS_SNAPHEAPLIST | TH32CS_SNAPMODULE | TH32CS_SNAPPROCESS | TH32CS_SNAPTHREAD
   194  	TH32CS_INHERIT      = 0x80000000
   195  )
   196  
   197  const (
   198  	// do not reorder
   199  	FILE_NOTIFY_CHANGE_FILE_NAME = 1 << iota
   200  	FILE_NOTIFY_CHANGE_DIR_NAME
   201  	FILE_NOTIFY_CHANGE_ATTRIBUTES
   202  	FILE_NOTIFY_CHANGE_SIZE
   203  	FILE_NOTIFY_CHANGE_LAST_WRITE
   204  	FILE_NOTIFY_CHANGE_LAST_ACCESS
   205  	FILE_NOTIFY_CHANGE_CREATION
   206  )
   207  
   208  const (
   209  	// do not reorder
   210  	FILE_ACTION_ADDED = iota + 1
   211  	FILE_ACTION_REMOVED
   212  	FILE_ACTION_MODIFIED
   213  	FILE_ACTION_RENAMED_OLD_NAME
   214  	FILE_ACTION_RENAMED_NEW_NAME
   215  )
   216  
   217  const (
   218  	// wincrypt.h
   219  	PROV_RSA_FULL                    = 1
   220  	PROV_RSA_SIG                     = 2
   221  	PROV_DSS                         = 3
   222  	PROV_FORTEZZA                    = 4
   223  	PROV_MS_EXCHANGE                 = 5
   224  	PROV_SSL                         = 6
   225  	PROV_RSA_SCHANNEL                = 12
   226  	PROV_DSS_DH                      = 13
   227  	PROV_EC_ECDSA_SIG                = 14
   228  	PROV_EC_ECNRA_SIG                = 15
   229  	PROV_EC_ECDSA_FULL               = 16
   230  	PROV_EC_ECNRA_FULL               = 17
   231  	PROV_DH_SCHANNEL                 = 18
   232  	PROV_SPYRUS_LYNKS                = 20
   233  	PROV_RNG                         = 21
   234  	PROV_INTEL_SEC                   = 22
   235  	PROV_REPLACE_OWF                 = 23
   236  	PROV_RSA_AES                     = 24
   237  	CRYPT_VERIFYCONTEXT              = 0xF0000000
   238  	CRYPT_NEWKEYSET                  = 0x00000008
   239  	CRYPT_DELETEKEYSET               = 0x00000010
   240  	CRYPT_MACHINE_KEYSET             = 0x00000020
   241  	CRYPT_SILENT                     = 0x00000040
   242  	CRYPT_DEFAULT_CONTAINER_OPTIONAL = 0x00000080
   243  
   244  	USAGE_MATCH_TYPE_AND = 0
   245  	USAGE_MATCH_TYPE_OR  = 1
   246  
   247  	X509_ASN_ENCODING   = 0x00000001
   248  	PKCS_7_ASN_ENCODING = 0x00010000
   249  
   250  	CERT_STORE_PROV_MEMORY = 2
   251  
   252  	CERT_STORE_ADD_ALWAYS = 4
   253  
   254  	CERT_STORE_DEFER_CLOSE_UNTIL_LAST_FREE_FLAG = 0x00000004
   255  
   256  	CERT_TRUST_NO_ERROR                          = 0x00000000
   257  	CERT_TRUST_IS_NOT_TIME_VALID                 = 0x00000001
   258  	CERT_TRUST_IS_REVOKED                        = 0x00000004
   259  	CERT_TRUST_IS_NOT_SIGNATURE_VALID            = 0x00000008
   260  	CERT_TRUST_IS_NOT_VALID_FOR_USAGE            = 0x00000010
   261  	CERT_TRUST_IS_UNTRUSTED_ROOT                 = 0x00000020
   262  	CERT_TRUST_REVOCATION_STATUS_UNKNOWN         = 0x00000040
   263  	CERT_TRUST_IS_CYCLIC                         = 0x00000080
   264  	CERT_TRUST_INVALID_EXTENSION                 = 0x00000100
   265  	CERT_TRUST_INVALID_POLICY_CONSTRAINTS        = 0x00000200
   266  	CERT_TRUST_INVALID_BASIC_CONSTRAINTS         = 0x00000400
   267  	CERT_TRUST_INVALID_NAME_CONSTRAINTS          = 0x00000800
   268  	CERT_TRUST_HAS_NOT_SUPPORTED_NAME_CONSTRAINT = 0x00001000
   269  	CERT_TRUST_HAS_NOT_DEFINED_NAME_CONSTRAINT   = 0x00002000
   270  	CERT_TRUST_HAS_NOT_PERMITTED_NAME_CONSTRAINT = 0x00004000
   271  	CERT_TRUST_HAS_EXCLUDED_NAME_CONSTRAINT      = 0x00008000
   272  	CERT_TRUST_IS_OFFLINE_REVOCATION             = 0x01000000
   273  	CERT_TRUST_NO_ISSUANCE_CHAIN_POLICY          = 0x02000000
   274  	CERT_TRUST_IS_EXPLICIT_DISTRUST              = 0x04000000
   275  	CERT_TRUST_HAS_NOT_SUPPORTED_CRITICAL_EXT    = 0x08000000
   276  
   277  	CERT_CHAIN_POLICY_BASE              = 1
   278  	CERT_CHAIN_POLICY_AUTHENTICODE      = 2
   279  	CERT_CHAIN_POLICY_AUTHENTICODE_TS   = 3
   280  	CERT_CHAIN_POLICY_SSL               = 4
   281  	CERT_CHAIN_POLICY_BASIC_CONSTRAINTS = 5
   282  	CERT_CHAIN_POLICY_NT_AUTH           = 6
   283  	CERT_CHAIN_POLICY_MICROSOFT_ROOT    = 7
   284  	CERT_CHAIN_POLICY_EV                = 8
   285  
   286  	CERT_E_EXPIRED       = 0x800B0101
   287  	CERT_E_ROLE          = 0x800B0103
   288  	CERT_E_PURPOSE       = 0x800B0106
   289  	CERT_E_UNTRUSTEDROOT = 0x800B0109
   290  	CERT_E_CN_NO_MATCH   = 0x800B010F
   291  
   292  	AUTHTYPE_CLIENT = 1
   293  	AUTHTYPE_SERVER = 2
   294  )
   295  
   296  var (
   297  	OID_PKIX_KP_SERVER_AUTH = []byte("1.3.6.1.5.5.7.3.1\x00")
   298  	OID_SERVER_GATED_CRYPTO = []byte("1.3.6.1.4.1.311.10.3.3\x00")
   299  	OID_SGC_NETSCAPE        = []byte("2.16.840.1.113730.4.1\x00")
   300  )
   301  
   302  // Pointer represents a pointer to an arbitrary Windows type.
   303  //
   304  // Pointer-typed fields may point to one of many different types. It's
   305  // up to the caller to provide a pointer to the appropriate type, cast
   306  // to Pointer. The caller must obey the unsafe.Pointer rules while
   307  // doing so.
   308  type Pointer *struct{}
   309  
   310  // Invented values to support what package os expects.
   311  type Timeval struct {
   312  	Sec  int32
   313  	Usec int32
   314  }
   315  
   316  func (tv *Timeval) Nanoseconds() int64 {
   317  	return (int64(tv.Sec)*1e6 + int64(tv.Usec)) * 1e3
   318  }
   319  
   320  func NsecToTimeval(nsec int64) (tv Timeval) {
   321  	tv.Sec = int32(nsec / 1e9)
   322  	tv.Usec = int32(nsec % 1e9 / 1e3)
   323  	return
   324  }
   325  
   326  type SecurityAttributes struct {
   327  	Length             uint32
   328  	SecurityDescriptor uintptr
   329  	InheritHandle      uint32
   330  }
   331  
   332  type Overlapped struct {
   333  	Internal     uintptr
   334  	InternalHigh uintptr
   335  	Offset       uint32
   336  	OffsetHigh   uint32
   337  	HEvent       Handle
   338  }
   339  
   340  type FileNotifyInformation struct {
   341  	NextEntryOffset uint32
   342  	Action          uint32
   343  	FileNameLength  uint32
   344  	FileName        uint16
   345  }
   346  
   347  type Filetime struct {
   348  	LowDateTime  uint32
   349  	HighDateTime uint32
   350  }
   351  
   352  // Nanoseconds returns Filetime ft in nanoseconds
   353  // since Epoch (00:00:00 UTC, January 1, 1970).
   354  func (ft *Filetime) Nanoseconds() int64 {
   355  	// 100-nanosecond intervals since January 1, 1601
   356  	nsec := int64(ft.HighDateTime)<<32 + int64(ft.LowDateTime)
   357  	// change starting time to the Epoch (00:00:00 UTC, January 1, 1970)
   358  	nsec -= 116444736000000000
   359  	// convert into nanoseconds
   360  	nsec *= 100
   361  	return nsec
   362  }
   363  
   364  func NsecToFiletime(nsec int64) (ft Filetime) {
   365  	// convert into 100-nanosecond
   366  	nsec /= 100
   367  	// change starting time to January 1, 1601
   368  	nsec += 116444736000000000
   369  	// split into high / low
   370  	ft.LowDateTime = uint32(nsec & 0xffffffff)
   371  	ft.HighDateTime = uint32(nsec >> 32 & 0xffffffff)
   372  	return ft
   373  }
   374  
   375  type Win32finddata struct {
   376  	FileAttributes    uint32
   377  	CreationTime      Filetime
   378  	LastAccessTime    Filetime
   379  	LastWriteTime     Filetime
   380  	FileSizeHigh      uint32
   381  	FileSizeLow       uint32
   382  	Reserved0         uint32
   383  	Reserved1         uint32
   384  	FileName          [MAX_PATH - 1]uint16
   385  	AlternateFileName [13]uint16
   386  }
   387  
   388  // This is the actual system call structure.
   389  // Win32finddata is what we committed to in Go 1.
   390  type win32finddata1 struct {
   391  	FileAttributes    uint32
   392  	CreationTime      Filetime
   393  	LastAccessTime    Filetime
   394  	LastWriteTime     Filetime
   395  	FileSizeHigh      uint32
   396  	FileSizeLow       uint32
   397  	Reserved0         uint32
   398  	Reserved1         uint32
   399  	FileName          [MAX_PATH]uint16
   400  	AlternateFileName [14]uint16
   401  
   402  	// The Microsoft documentation for this struct¹ describes three additional
   403  	// fields: dwFileType, dwCreatorType, and wFinderFlags. However, those fields
   404  	// are empirically only present in the macOS port of the Win32 API,² and thus
   405  	// not needed for binaries built for Windows.
   406  	//
   407  	// ¹ https://docs.microsoft.com/en-us/windows/win32/api/minwinbase/ns-minwinbase-win32_find_dataw
   408  	// ² https://golang.org/issue/42637#issuecomment-760715755
   409  }
   410  
   411  func copyFindData(dst *Win32finddata, src *win32finddata1) {
   412  	dst.FileAttributes = src.FileAttributes
   413  	dst.CreationTime = src.CreationTime
   414  	dst.LastAccessTime = src.LastAccessTime
   415  	dst.LastWriteTime = src.LastWriteTime
   416  	dst.FileSizeHigh = src.FileSizeHigh
   417  	dst.FileSizeLow = src.FileSizeLow
   418  	dst.Reserved0 = src.Reserved0
   419  	dst.Reserved1 = src.Reserved1
   420  
   421  	// The src is 1 element bigger than dst, but it must be NUL.
   422  	copy(dst.FileName[:], src.FileName[:])
   423  	copy(dst.AlternateFileName[:], src.AlternateFileName[:])
   424  }
   425  
   426  type ByHandleFileInformation struct {
   427  	FileAttributes     uint32
   428  	CreationTime       Filetime
   429  	LastAccessTime     Filetime
   430  	LastWriteTime      Filetime
   431  	VolumeSerialNumber uint32
   432  	FileSizeHigh       uint32
   433  	FileSizeLow        uint32
   434  	NumberOfLinks      uint32
   435  	FileIndexHigh      uint32
   436  	FileIndexLow       uint32
   437  }
   438  
   439  const (
   440  	GetFileExInfoStandard = 0
   441  	GetFileExMaxInfoLevel = 1
   442  )
   443  
   444  type Win32FileAttributeData struct {
   445  	FileAttributes uint32
   446  	CreationTime   Filetime
   447  	LastAccessTime Filetime
   448  	LastWriteTime  Filetime
   449  	FileSizeHigh   uint32
   450  	FileSizeLow    uint32
   451  }
   452  
   453  // ShowWindow constants
   454  const (
   455  	// winuser.h
   456  	SW_HIDE            = 0
   457  	SW_NORMAL          = 1
   458  	SW_SHOWNORMAL      = 1
   459  	SW_SHOWMINIMIZED   = 2
   460  	SW_SHOWMAXIMIZED   = 3
   461  	SW_MAXIMIZE        = 3
   462  	SW_SHOWNOACTIVATE  = 4
   463  	SW_SHOW            = 5
   464  	SW_MINIMIZE        = 6
   465  	SW_SHOWMINNOACTIVE = 7
   466  	SW_SHOWNA          = 8
   467  	SW_RESTORE         = 9
   468  	SW_SHOWDEFAULT     = 10
   469  	SW_FORCEMINIMIZE   = 11
   470  )
   471  
   472  type StartupInfo struct {
   473  	Cb            uint32
   474  	_             *uint16
   475  	Desktop       *uint16
   476  	Title         *uint16
   477  	X             uint32
   478  	Y             uint32
   479  	XSize         uint32
   480  	YSize         uint32
   481  	XCountChars   uint32
   482  	YCountChars   uint32
   483  	FillAttribute uint32
   484  	Flags         uint32
   485  	ShowWindow    uint16
   486  	_             uint16
   487  	_             *byte
   488  	StdInput      Handle
   489  	StdOutput     Handle
   490  	StdErr        Handle
   491  }
   492  
   493  type _PROC_THREAD_ATTRIBUTE_LIST struct {
   494  	_ [1]byte
   495  }
   496  
   497  const (
   498  	_PROC_THREAD_ATTRIBUTE_PARENT_PROCESS = 0x00020000
   499  	_PROC_THREAD_ATTRIBUTE_HANDLE_LIST    = 0x00020002
   500  )
   501  
   502  type _STARTUPINFOEXW struct {
   503  	StartupInfo
   504  	ProcThreadAttributeList *_PROC_THREAD_ATTRIBUTE_LIST
   505  }
   506  
   507  const _EXTENDED_STARTUPINFO_PRESENT = 0x00080000
   508  
   509  type ProcessInformation struct {
   510  	Process   Handle
   511  	Thread    Handle
   512  	ProcessId uint32
   513  	ThreadId  uint32
   514  }
   515  
   516  type ProcessEntry32 struct {
   517  	Size            uint32
   518  	Usage           uint32
   519  	ProcessID       uint32
   520  	DefaultHeapID   uintptr
   521  	ModuleID        uint32
   522  	Threads         uint32
   523  	ParentProcessID uint32
   524  	PriClassBase    int32
   525  	Flags           uint32
   526  	ExeFile         [MAX_PATH]uint16
   527  }
   528  
   529  type Systemtime struct {
   530  	Year         uint16
   531  	Month        uint16
   532  	DayOfWeek    uint16
   533  	Day          uint16
   534  	Hour         uint16
   535  	Minute       uint16
   536  	Second       uint16
   537  	Milliseconds uint16
   538  }
   539  
   540  type Timezoneinformation struct {
   541  	Bias         int32
   542  	StandardName [32]uint16
   543  	StandardDate Systemtime
   544  	StandardBias int32
   545  	DaylightName [32]uint16
   546  	DaylightDate Systemtime
   547  	DaylightBias int32
   548  }
   549  
   550  // Socket related.
   551  
   552  const (
   553  	AF_UNSPEC  = 0
   554  	AF_UNIX    = 1
   555  	AF_INET    = 2
   556  	AF_INET6   = 23
   557  	AF_NETBIOS = 17
   558  
   559  	SOCK_STREAM    = 1
   560  	SOCK_DGRAM     = 2
   561  	SOCK_RAW       = 3
   562  	SOCK_SEQPACKET = 5
   563  
   564  	IPPROTO_IP   = 0
   565  	IPPROTO_IPV6 = 0x29
   566  	IPPROTO_TCP  = 6
   567  	IPPROTO_UDP  = 17
   568  
   569  	SOL_SOCKET                = 0xffff
   570  	SO_REUSEADDR              = 4
   571  	SO_KEEPALIVE              = 8
   572  	SO_DONTROUTE              = 16
   573  	SO_BROADCAST              = 32
   574  	SO_LINGER                 = 128
   575  	SO_RCVBUF                 = 0x1002
   576  	SO_SNDBUF                 = 0x1001
   577  	SO_UPDATE_ACCEPT_CONTEXT  = 0x700b
   578  	SO_UPDATE_CONNECT_CONTEXT = 0x7010
   579  
   580  	IOC_OUT                            = 0x40000000
   581  	IOC_IN                             = 0x80000000
   582  	IOC_VENDOR                         = 0x18000000
   583  	IOC_INOUT                          = IOC_IN | IOC_OUT
   584  	IOC_WS2                            = 0x08000000
   585  	SIO_GET_EXTENSION_FUNCTION_POINTER = IOC_INOUT | IOC_WS2 | 6
   586  	SIO_KEEPALIVE_VALS                 = IOC_IN | IOC_VENDOR | 4
   587  	SIO_UDP_CONNRESET                  = IOC_IN | IOC_VENDOR | 12
   588  
   589  	// cf. https://support.microsoft.com/default.aspx?scid=kb;en-us;257460
   590  
   591  	IP_TOS             = 0x3
   592  	IP_TTL             = 0x4
   593  	IP_MULTICAST_IF    = 0x9
   594  	IP_MULTICAST_TTL   = 0xa
   595  	IP_MULTICAST_LOOP  = 0xb
   596  	IP_ADD_MEMBERSHIP  = 0xc
   597  	IP_DROP_MEMBERSHIP = 0xd
   598  
   599  	IPV6_V6ONLY         = 0x1b
   600  	IPV6_UNICAST_HOPS   = 0x4
   601  	IPV6_MULTICAST_IF   = 0x9
   602  	IPV6_MULTICAST_HOPS = 0xa
   603  	IPV6_MULTICAST_LOOP = 0xb
   604  	IPV6_JOIN_GROUP     = 0xc
   605  	IPV6_LEAVE_GROUP    = 0xd
   606  
   607  	SOMAXCONN = 0x7fffffff
   608  
   609  	TCP_NODELAY = 1
   610  
   611  	SHUT_RD   = 0
   612  	SHUT_WR   = 1
   613  	SHUT_RDWR = 2
   614  
   615  	WSADESCRIPTION_LEN = 256
   616  	WSASYS_STATUS_LEN  = 128
   617  )
   618  
   619  type WSABuf struct {
   620  	Len uint32
   621  	Buf *byte
   622  }
   623  
   624  // Invented values to support what package os expects.
   625  const (
   626  	S_IFMT   = 0x1f000
   627  	S_IFIFO  = 0x1000
   628  	S_IFCHR  = 0x2000
   629  	S_IFDIR  = 0x4000
   630  	S_IFBLK  = 0x6000
   631  	S_IFREG  = 0x8000
   632  	S_IFLNK  = 0xa000
   633  	S_IFSOCK = 0xc000
   634  	S_ISUID  = 0x800
   635  	S_ISGID  = 0x400
   636  	S_ISVTX  = 0x200
   637  	S_IRUSR  = 0x100
   638  	S_IWRITE = 0x80
   639  	S_IWUSR  = 0x80
   640  	S_IXUSR  = 0x40
   641  )
   642  
   643  const (
   644  	FILE_TYPE_CHAR    = 0x0002
   645  	FILE_TYPE_DISK    = 0x0001
   646  	FILE_TYPE_PIPE    = 0x0003
   647  	FILE_TYPE_REMOTE  = 0x8000
   648  	FILE_TYPE_UNKNOWN = 0x0000
   649  )
   650  
   651  type Hostent struct {
   652  	Name     *byte
   653  	Aliases  **byte
   654  	AddrType uint16
   655  	Length   uint16
   656  	AddrList **byte
   657  }
   658  
   659  type Protoent struct {
   660  	Name    *byte
   661  	Aliases **byte
   662  	Proto   uint16
   663  }
   664  
   665  const (
   666  	DNS_TYPE_A       = 0x0001
   667  	DNS_TYPE_NS      = 0x0002
   668  	DNS_TYPE_MD      = 0x0003
   669  	DNS_TYPE_MF      = 0x0004
   670  	DNS_TYPE_CNAME   = 0x0005
   671  	DNS_TYPE_SOA     = 0x0006
   672  	DNS_TYPE_MB      = 0x0007
   673  	DNS_TYPE_MG      = 0x0008
   674  	DNS_TYPE_MR      = 0x0009
   675  	DNS_TYPE_NULL    = 0x000a
   676  	DNS_TYPE_WKS     = 0x000b
   677  	DNS_TYPE_PTR     = 0x000c
   678  	DNS_TYPE_HINFO   = 0x000d
   679  	DNS_TYPE_MINFO   = 0x000e
   680  	DNS_TYPE_MX      = 0x000f
   681  	DNS_TYPE_TEXT    = 0x0010
   682  	DNS_TYPE_RP      = 0x0011
   683  	DNS_TYPE_AFSDB   = 0x0012
   684  	DNS_TYPE_X25     = 0x0013
   685  	DNS_TYPE_ISDN    = 0x0014
   686  	DNS_TYPE_RT      = 0x0015
   687  	DNS_TYPE_NSAP    = 0x0016
   688  	DNS_TYPE_NSAPPTR = 0x0017
   689  	DNS_TYPE_SIG     = 0x0018
   690  	DNS_TYPE_KEY     = 0x0019
   691  	DNS_TYPE_PX      = 0x001a
   692  	DNS_TYPE_GPOS    = 0x001b
   693  	DNS_TYPE_AAAA    = 0x001c
   694  	DNS_TYPE_LOC     = 0x001d
   695  	DNS_TYPE_NXT     = 0x001e
   696  	DNS_TYPE_EID     = 0x001f
   697  	DNS_TYPE_NIMLOC  = 0x0020
   698  	DNS_TYPE_SRV     = 0x0021
   699  	DNS_TYPE_ATMA    = 0x0022
   700  	DNS_TYPE_NAPTR   = 0x0023
   701  	DNS_TYPE_KX      = 0x0024
   702  	DNS_TYPE_CERT    = 0x0025
   703  	DNS_TYPE_A6      = 0x0026
   704  	DNS_TYPE_DNAME   = 0x0027
   705  	DNS_TYPE_SINK    = 0x0028
   706  	DNS_TYPE_OPT     = 0x0029
   707  	DNS_TYPE_DS      = 0x002B
   708  	DNS_TYPE_RRSIG   = 0x002E
   709  	DNS_TYPE_NSEC    = 0x002F
   710  	DNS_TYPE_DNSKEY  = 0x0030
   711  	DNS_TYPE_DHCID   = 0x0031
   712  	DNS_TYPE_UINFO   = 0x0064
   713  	DNS_TYPE_UID     = 0x0065
   714  	DNS_TYPE_GID     = 0x0066
   715  	DNS_TYPE_UNSPEC  = 0x0067
   716  	DNS_TYPE_ADDRS   = 0x00f8
   717  	DNS_TYPE_TKEY    = 0x00f9
   718  	DNS_TYPE_TSIG    = 0x00fa
   719  	DNS_TYPE_IXFR    = 0x00fb
   720  	DNS_TYPE_AXFR    = 0x00fc
   721  	DNS_TYPE_MAILB   = 0x00fd
   722  	DNS_TYPE_MAILA   = 0x00fe
   723  	DNS_TYPE_ALL     = 0x00ff
   724  	DNS_TYPE_ANY     = 0x00ff
   725  	DNS_TYPE_WINS    = 0xff01
   726  	DNS_TYPE_WINSR   = 0xff02
   727  	DNS_TYPE_NBSTAT  = 0xff01
   728  )
   729  
   730  const (
   731  	DNS_INFO_NO_RECORDS = 0x251D
   732  )
   733  
   734  const (
   735  	// flags inside DNSRecord.Dw
   736  	DnsSectionQuestion   = 0x0000
   737  	DnsSectionAnswer     = 0x0001
   738  	DnsSectionAuthority  = 0x0002
   739  	DnsSectionAdditional = 0x0003
   740  )
   741  
   742  type DNSSRVData struct {
   743  	Target   *uint16
   744  	Priority uint16
   745  	Weight   uint16
   746  	Port     uint16
   747  	Pad      uint16
   748  }
   749  
   750  type DNSPTRData struct {
   751  	Host *uint16
   752  }
   753  
   754  type DNSMXData struct {
   755  	NameExchange *uint16
   756  	Preference   uint16
   757  	Pad          uint16
   758  }
   759  
   760  type DNSTXTData struct {
   761  	StringCount uint16
   762  	StringArray [1]*uint16
   763  }
   764  
   765  type DNSRecord struct {
   766  	Next     *DNSRecord
   767  	Name     *uint16
   768  	Type     uint16
   769  	Length   uint16
   770  	Dw       uint32
   771  	Ttl      uint32
   772  	Reserved uint32
   773  	Data     [40]byte
   774  }
   775  
   776  const (
   777  	TF_DISCONNECT         = 1
   778  	TF_REUSE_SOCKET       = 2
   779  	TF_WRITE_BEHIND       = 4
   780  	TF_USE_DEFAULT_WORKER = 0
   781  	TF_USE_SYSTEM_THREAD  = 16
   782  	TF_USE_KERNEL_APC     = 32
   783  )
   784  
   785  type TransmitFileBuffers struct {
   786  	Head       uintptr
   787  	HeadLength uint32
   788  	Tail       uintptr
   789  	TailLength uint32
   790  }
   791  
   792  const (
   793  	IFF_UP           = 1
   794  	IFF_BROADCAST    = 2
   795  	IFF_LOOPBACK     = 4
   796  	IFF_POINTTOPOINT = 8
   797  	IFF_MULTICAST    = 16
   798  )
   799  
   800  const SIO_GET_INTERFACE_LIST = 0x4004747F
   801  
   802  // TODO(mattn): SockaddrGen is union of sockaddr/sockaddr_in/sockaddr_in6_old.
   803  // will be fixed to change variable type as suitable.
   804  
   805  type SockaddrGen [24]byte
   806  
   807  type InterfaceInfo struct {
   808  	Flags            uint32
   809  	Address          SockaddrGen
   810  	BroadcastAddress SockaddrGen
   811  	Netmask          SockaddrGen
   812  }
   813  
   814  type IpAddressString struct {
   815  	String [16]byte
   816  }
   817  
   818  type IpMaskString IpAddressString
   819  
   820  type IpAddrString struct {
   821  	Next      *IpAddrString
   822  	IpAddress IpAddressString
   823  	IpMask    IpMaskString
   824  	Context   uint32
   825  }
   826  
   827  const MAX_ADAPTER_NAME_LENGTH = 256
   828  const MAX_ADAPTER_DESCRIPTION_LENGTH = 128
   829  const MAX_ADAPTER_ADDRESS_LENGTH = 8
   830  
   831  type IpAdapterInfo struct {
   832  	Next                *IpAdapterInfo
   833  	ComboIndex          uint32
   834  	AdapterName         [MAX_ADAPTER_NAME_LENGTH + 4]byte
   835  	Description         [MAX_ADAPTER_DESCRIPTION_LENGTH + 4]byte
   836  	AddressLength       uint32
   837  	Address             [MAX_ADAPTER_ADDRESS_LENGTH]byte
   838  	Index               uint32
   839  	Type                uint32
   840  	DhcpEnabled         uint32
   841  	CurrentIpAddress    *IpAddrString
   842  	IpAddressList       IpAddrString
   843  	GatewayList         IpAddrString
   844  	DhcpServer          IpAddrString
   845  	HaveWins            bool
   846  	PrimaryWinsServer   IpAddrString
   847  	SecondaryWinsServer IpAddrString
   848  	LeaseObtained       int64
   849  	LeaseExpires        int64
   850  }
   851  
   852  const MAXLEN_PHYSADDR = 8
   853  const MAX_INTERFACE_NAME_LEN = 256
   854  const MAXLEN_IFDESCR = 256
   855  
   856  type MibIfRow struct {
   857  	Name            [MAX_INTERFACE_NAME_LEN]uint16
   858  	Index           uint32
   859  	Type            uint32
   860  	Mtu             uint32
   861  	Speed           uint32
   862  	PhysAddrLen     uint32
   863  	PhysAddr        [MAXLEN_PHYSADDR]byte
   864  	AdminStatus     uint32
   865  	OperStatus      uint32
   866  	LastChange      uint32
   867  	InOctets        uint32
   868  	InUcastPkts     uint32
   869  	InNUcastPkts    uint32
   870  	InDiscards      uint32
   871  	InErrors        uint32
   872  	InUnknownProtos uint32
   873  	OutOctets       uint32
   874  	OutUcastPkts    uint32
   875  	OutNUcastPkts   uint32
   876  	OutDiscards     uint32
   877  	OutErrors       uint32
   878  	OutQLen         uint32
   879  	DescrLen        uint32
   880  	Descr           [MAXLEN_IFDESCR]byte
   881  }
   882  
   883  type CertInfo struct {
   884  	// Not implemented
   885  }
   886  
   887  type CertContext struct {
   888  	EncodingType uint32
   889  	EncodedCert  *byte
   890  	Length       uint32
   891  	CertInfo     *CertInfo
   892  	Store        Handle
   893  }
   894  
   895  type CertChainContext struct {
   896  	Size                       uint32
   897  	TrustStatus                CertTrustStatus
   898  	ChainCount                 uint32
   899  	Chains                     **CertSimpleChain
   900  	LowerQualityChainCount     uint32
   901  	LowerQualityChains         **CertChainContext
   902  	HasRevocationFreshnessTime uint32
   903  	RevocationFreshnessTime    uint32
   904  }
   905  
   906  type CertTrustListInfo struct {
   907  	// Not implemented
   908  }
   909  
   910  type CertSimpleChain struct {
   911  	Size                       uint32
   912  	TrustStatus                CertTrustStatus
   913  	NumElements                uint32
   914  	Elements                   **CertChainElement
   915  	TrustListInfo              *CertTrustListInfo
   916  	HasRevocationFreshnessTime uint32
   917  	RevocationFreshnessTime    uint32
   918  }
   919  
   920  type CertChainElement struct {
   921  	Size              uint32
   922  	CertContext       *CertContext
   923  	TrustStatus       CertTrustStatus
   924  	RevocationInfo    *CertRevocationInfo
   925  	IssuanceUsage     *CertEnhKeyUsage
   926  	ApplicationUsage  *CertEnhKeyUsage
   927  	ExtendedErrorInfo *uint16
   928  }
   929  
   930  type CertRevocationCrlInfo struct {
   931  	// Not implemented
   932  }
   933  
   934  type CertRevocationInfo struct {
   935  	Size             uint32
   936  	RevocationResult uint32
   937  	RevocationOid    *byte
   938  	OidSpecificInfo  Pointer
   939  	HasFreshnessTime uint32
   940  	FreshnessTime    uint32
   941  	CrlInfo          *CertRevocationCrlInfo
   942  }
   943  
   944  type CertTrustStatus struct {
   945  	ErrorStatus uint32
   946  	InfoStatus  uint32
   947  }
   948  
   949  type CertUsageMatch struct {
   950  	Type  uint32
   951  	Usage CertEnhKeyUsage
   952  }
   953  
   954  type CertEnhKeyUsage struct {
   955  	Length           uint32
   956  	UsageIdentifiers **byte
   957  }
   958  
   959  type CertChainPara struct {
   960  	Size                         uint32
   961  	RequestedUsage               CertUsageMatch
   962  	RequstedIssuancePolicy       CertUsageMatch
   963  	URLRetrievalTimeout          uint32
   964  	CheckRevocationFreshnessTime uint32
   965  	RevocationFreshnessTime      uint32
   966  	CacheResync                  *Filetime
   967  }
   968  
   969  type CertChainPolicyPara struct {
   970  	Size            uint32
   971  	Flags           uint32
   972  	ExtraPolicyPara Pointer
   973  }
   974  
   975  type SSLExtraCertChainPolicyPara struct {
   976  	Size       uint32
   977  	AuthType   uint32
   978  	Checks     uint32
   979  	ServerName *uint16
   980  }
   981  
   982  type CertChainPolicyStatus struct {
   983  	Size              uint32
   984  	Error             uint32
   985  	ChainIndex        uint32
   986  	ElementIndex      uint32
   987  	ExtraPolicyStatus Pointer
   988  }
   989  
   990  const (
   991  	// do not reorder
   992  	HKEY_CLASSES_ROOT = 0x80000000 + iota
   993  	HKEY_CURRENT_USER
   994  	HKEY_LOCAL_MACHINE
   995  	HKEY_USERS
   996  	HKEY_PERFORMANCE_DATA
   997  	HKEY_CURRENT_CONFIG
   998  	HKEY_DYN_DATA
   999  
  1000  	KEY_QUERY_VALUE        = 1
  1001  	KEY_SET_VALUE          = 2
  1002  	KEY_CREATE_SUB_KEY     = 4
  1003  	KEY_ENUMERATE_SUB_KEYS = 8
  1004  	KEY_NOTIFY             = 16
  1005  	KEY_CREATE_LINK        = 32
  1006  	KEY_WRITE              = 0x20006
  1007  	KEY_EXECUTE            = 0x20019
  1008  	KEY_READ               = 0x20019
  1009  	KEY_WOW64_64KEY        = 0x0100
  1010  	KEY_WOW64_32KEY        = 0x0200
  1011  	KEY_ALL_ACCESS         = 0xf003f
  1012  )
  1013  
  1014  const (
  1015  	// do not reorder
  1016  	REG_NONE = iota
  1017  	REG_SZ
  1018  	REG_EXPAND_SZ
  1019  	REG_BINARY
  1020  	REG_DWORD_LITTLE_ENDIAN
  1021  	REG_DWORD_BIG_ENDIAN
  1022  	REG_LINK
  1023  	REG_MULTI_SZ
  1024  	REG_RESOURCE_LIST
  1025  	REG_FULL_RESOURCE_DESCRIPTOR
  1026  	REG_RESOURCE_REQUIREMENTS_LIST
  1027  	REG_QWORD_LITTLE_ENDIAN
  1028  	REG_DWORD = REG_DWORD_LITTLE_ENDIAN
  1029  	REG_QWORD = REG_QWORD_LITTLE_ENDIAN
  1030  )
  1031  
  1032  type AddrinfoW struct {
  1033  	Flags     int32
  1034  	Family    int32
  1035  	Socktype  int32
  1036  	Protocol  int32
  1037  	Addrlen   uintptr
  1038  	Canonname *uint16
  1039  	Addr      Pointer
  1040  	Next      *AddrinfoW
  1041  }
  1042  
  1043  const (
  1044  	AI_PASSIVE     = 1
  1045  	AI_CANONNAME   = 2
  1046  	AI_NUMERICHOST = 4
  1047  )
  1048  
  1049  type GUID struct {
  1050  	Data1 uint32
  1051  	Data2 uint16
  1052  	Data3 uint16
  1053  	Data4 [8]byte
  1054  }
  1055  
  1056  var WSAID_CONNECTEX = GUID{
  1057  	0x25a207b9,
  1058  	0xddf3,
  1059  	0x4660,
  1060  	[8]byte{0x8e, 0xe9, 0x76, 0xe5, 0x8c, 0x74, 0x06, 0x3e},
  1061  }
  1062  
  1063  const (
  1064  	FILE_SKIP_COMPLETION_PORT_ON_SUCCESS = 1
  1065  	FILE_SKIP_SET_EVENT_ON_HANDLE        = 2
  1066  )
  1067  
  1068  const (
  1069  	WSAPROTOCOL_LEN    = 255
  1070  	MAX_PROTOCOL_CHAIN = 7
  1071  	BASE_PROTOCOL      = 1
  1072  	LAYERED_PROTOCOL   = 0
  1073  
  1074  	XP1_CONNECTIONLESS           = 0x00000001
  1075  	XP1_GUARANTEED_DELIVERY      = 0x00000002
  1076  	XP1_GUARANTEED_ORDER         = 0x00000004
  1077  	XP1_MESSAGE_ORIENTED         = 0x00000008
  1078  	XP1_PSEUDO_STREAM            = 0x00000010
  1079  	XP1_GRACEFUL_CLOSE           = 0x00000020
  1080  	XP1_EXPEDITED_DATA           = 0x00000040
  1081  	XP1_CONNECT_DATA             = 0x00000080
  1082  	XP1_DISCONNECT_DATA          = 0x00000100
  1083  	XP1_SUPPORT_BROADCAST        = 0x00000200
  1084  	XP1_SUPPORT_MULTIPOINT       = 0x00000400
  1085  	XP1_MULTIPOINT_CONTROL_PLANE = 0x00000800
  1086  	XP1_MULTIPOINT_DATA_PLANE    = 0x00001000
  1087  	XP1_QOS_SUPPORTED            = 0x00002000
  1088  	XP1_UNI_SEND                 = 0x00008000
  1089  	XP1_UNI_RECV                 = 0x00010000
  1090  	XP1_IFS_HANDLES              = 0x00020000
  1091  	XP1_PARTIAL_MESSAGE          = 0x00040000
  1092  	XP1_SAN_SUPPORT_SDP          = 0x00080000
  1093  
  1094  	PFL_MULTIPLE_PROTO_ENTRIES  = 0x00000001
  1095  	PFL_RECOMMENDED_PROTO_ENTRY = 0x00000002
  1096  	PFL_HIDDEN                  = 0x00000004
  1097  	PFL_MATCHES_PROTOCOL_ZERO   = 0x00000008
  1098  	PFL_NETWORKDIRECT_PROVIDER  = 0x00000010
  1099  )
  1100  
  1101  type WSAProtocolInfo struct {
  1102  	ServiceFlags1     uint32
  1103  	ServiceFlags2     uint32
  1104  	ServiceFlags3     uint32
  1105  	ServiceFlags4     uint32
  1106  	ProviderFlags     uint32
  1107  	ProviderId        GUID
  1108  	CatalogEntryId    uint32
  1109  	ProtocolChain     WSAProtocolChain
  1110  	Version           int32
  1111  	AddressFamily     int32
  1112  	MaxSockAddr       int32
  1113  	MinSockAddr       int32
  1114  	SocketType        int32
  1115  	Protocol          int32
  1116  	ProtocolMaxOffset int32
  1117  	NetworkByteOrder  int32
  1118  	SecurityScheme    int32
  1119  	MessageSize       uint32
  1120  	ProviderReserved  uint32
  1121  	ProtocolName      [WSAPROTOCOL_LEN + 1]uint16
  1122  }
  1123  
  1124  type WSAProtocolChain struct {
  1125  	ChainLen     int32
  1126  	ChainEntries [MAX_PROTOCOL_CHAIN]uint32
  1127  }
  1128  
  1129  type TCPKeepalive struct {
  1130  	OnOff    uint32
  1131  	Time     uint32
  1132  	Interval uint32
  1133  }
  1134  
  1135  type symbolicLinkReparseBuffer struct {
  1136  	SubstituteNameOffset uint16
  1137  	SubstituteNameLength uint16
  1138  	PrintNameOffset      uint16
  1139  	PrintNameLength      uint16
  1140  	Flags                uint32
  1141  	PathBuffer           [1]uint16
  1142  }
  1143  
  1144  type mountPointReparseBuffer struct {
  1145  	SubstituteNameOffset uint16
  1146  	SubstituteNameLength uint16
  1147  	PrintNameOffset      uint16
  1148  	PrintNameLength      uint16
  1149  	PathBuffer           [1]uint16
  1150  }
  1151  
  1152  type reparseDataBuffer struct {
  1153  	ReparseTag        uint32
  1154  	ReparseDataLength uint16
  1155  	Reserved          uint16
  1156  
  1157  	// GenericReparseBuffer
  1158  	reparseBuffer byte
  1159  }
  1160  
  1161  const (
  1162  	FSCTL_GET_REPARSE_POINT          = 0x900A8
  1163  	MAXIMUM_REPARSE_DATA_BUFFER_SIZE = 16 * 1024
  1164  	_IO_REPARSE_TAG_MOUNT_POINT      = 0xA0000003
  1165  	IO_REPARSE_TAG_SYMLINK           = 0xA000000C
  1166  	SYMBOLIC_LINK_FLAG_DIRECTORY     = 0x1
  1167  	_SYMLINK_FLAG_RELATIVE           = 1
  1168  )
  1169  
  1170  const UNIX_PATH_MAX = 108 // defined in afunix.h
  1171  

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