libgo/go/syscall/socket_aix.go

   1 // socket_aix.go -- Socket handling specific to AIX.
   2
   3 // Copyright 2017 The Go Authors. All rights reserved.
   4 // Use of this source code is governed by a BSD-style
   5 // license that can be found in the LICENSE file.
   6
   7 package syscall
   8
   9 import "unsafe"
  10
  11 const SizeofSockaddrInet4 = 16
  12 const SizeofSockaddrInet6 = 28
  13 const SizeofSockaddrUnix = 1025
  14
  15 type RawSockaddrInet4 struct {
  16         Len    uint8
  17         Family uint8
  18         Port   uint16
  19         Addr   [4]byte /* in_addr */
  20         Zero   [8]uint8
  21 }
  22
  23 func (sa *RawSockaddrInet4) setLen() Socklen_t {
  24         sa.Len = SizeofSockaddrInet4
  25         return SizeofSockaddrInet4
  26 }
  27
  28 type RawSockaddrInet6 struct {
  29         Len      uint8
  30         Family   uint8
  31         Port     uint16
  32         Flowinfo uint32
  33         Addr     [16]byte /* in6_addr */
  34         Scope_id uint32
  35 }
  36
  37 func (sa *RawSockaddrInet6) setLen() Socklen_t {
  38         sa.Len = SizeofSockaddrInet6
  39         return SizeofSockaddrInet6
  40 }
  41
  42 type RawSockaddrUnix struct {
  43         Len    uint8
  44         Family uint8
  45         Path   [1023]int8
  46 }
  47
  48 func (sa *RawSockaddrUnix) setLen(n int) {
  49         sa.Len = uint8(3 + n) // 2 for Family, Len; 1 for NUL.
  50 }
  51
  52 func (sa *RawSockaddrUnix) getLen() (int, error) {
  53         // Some versions of AIX have a bug in getsockname (see IV78655).
  54         // We can't rely on sa.Len being set correctly.
  55         n := SizeofSockaddrUnix - 3 // substract leading Family, Len, terminating NUL.
  56         for i := 0; i < n; i++ {
  57                 if sa.Path[i] == 0 {
  58                         n = i
  59                         break
  60                 }
  61         }
  62         return n, nil
  63 }
  64
  65 func (sa *RawSockaddrUnix) adjustAbstract(sl Socklen_t) Socklen_t {
  66         return sl
  67 }
  68
  69 type RawSockaddr struct {
  70         Len    uint8
  71         Family uint8
  72         Data   [14]int8
  73 }
  74
  75 // BindToDevice binds the socket associated with fd to device.
  76 func BindToDevice(fd int, device string) (err error) {
  77         return ENOSYS
  78 }
  79
  80 func anyToSockaddrOS(rsa *RawSockaddrAny) (Sockaddr, error) {
  81         return nil, EAFNOSUPPORT
  82 }
  83
  84 func GetsockoptIPv6MTUInfo(fd, level, opt int) (*IPv6MTUInfo, error) {
  85         var value IPv6MTUInfo
  86         vallen := Socklen_t(SizeofIPv6MTUInfo)
  87         err := getsockopt(fd, level, opt, unsafe.Pointer(&value), &vallen)
  88         return &value, err
  89 }