mirror of https://go.googlesource.com/go
101 lines
3.0 KiB
Go
101 lines
3.0 KiB
Go
// Copyright 2022 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !netgo && darwin
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package net
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import (
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"internal/syscall/unix"
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"runtime"
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"syscall"
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"unsafe"
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)
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const (
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_C_AF_INET = syscall.AF_INET
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_C_AF_INET6 = syscall.AF_INET6
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_C_AF_UNSPEC = syscall.AF_UNSPEC
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_C_EAI_AGAIN = unix.EAI_AGAIN
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_C_EAI_NONAME = unix.EAI_NONAME
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_C_EAI_SERVICE = unix.EAI_SERVICE
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_C_EAI_NODATA = unix.EAI_NODATA
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_C_EAI_OVERFLOW = unix.EAI_OVERFLOW
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_C_EAI_SYSTEM = unix.EAI_SYSTEM
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_C_IPPROTO_TCP = syscall.IPPROTO_TCP
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_C_IPPROTO_UDP = syscall.IPPROTO_UDP
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_C_SOCK_DGRAM = syscall.SOCK_DGRAM
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_C_SOCK_STREAM = syscall.SOCK_STREAM
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)
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type (
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_C_char = byte
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_C_int = int32
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_C_uchar = byte
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_C_uint = uint32
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_C_socklen_t = int
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_C_struct___res_state = unix.ResState
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_C_struct_addrinfo = unix.Addrinfo
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_C_struct_sockaddr = syscall.RawSockaddr
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)
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func _C_free(p unsafe.Pointer) { runtime.KeepAlive(p) }
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func _C_malloc(n uintptr) unsafe.Pointer {
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if n <= 0 {
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n = 1
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}
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return unsafe.Pointer(&make([]byte, n)[0])
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}
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func _C_ai_addr(ai *_C_struct_addrinfo) **_C_struct_sockaddr { return &ai.Addr }
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func _C_ai_family(ai *_C_struct_addrinfo) *_C_int { return &ai.Family }
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func _C_ai_flags(ai *_C_struct_addrinfo) *_C_int { return &ai.Flags }
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func _C_ai_next(ai *_C_struct_addrinfo) **_C_struct_addrinfo { return &ai.Next }
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func _C_ai_protocol(ai *_C_struct_addrinfo) *_C_int { return &ai.Protocol }
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func _C_ai_socktype(ai *_C_struct_addrinfo) *_C_int { return &ai.Socktype }
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func _C_freeaddrinfo(ai *_C_struct_addrinfo) {
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unix.Freeaddrinfo(ai)
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}
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func _C_gai_strerror(eai _C_int) string {
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return unix.GaiStrerror(int(eai))
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}
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func _C_getaddrinfo(hostname, servname *byte, hints *_C_struct_addrinfo, res **_C_struct_addrinfo) (int, error) {
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return unix.Getaddrinfo(hostname, servname, hints, res)
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}
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func _C_res_ninit(state *_C_struct___res_state) error {
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unix.ResNinit(state)
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return nil
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}
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func _C_res_nsearch(state *_C_struct___res_state, dname *_C_char, class, typ int, ans *_C_char, anslen int) int {
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x, _ := unix.ResNsearch(state, dname, class, typ, ans, anslen)
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return x
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}
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func _C_res_nclose(state *_C_struct___res_state) {
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unix.ResNclose(state)
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}
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func cgoNameinfoPTR(b []byte, sa *syscall.RawSockaddr, salen int) (int, error) {
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gerrno, err := unix.Getnameinfo(sa, salen, &b[0], len(b), nil, 0, unix.NI_NAMEREQD)
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return int(gerrno), err
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}
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func cgoSockaddrInet4(ip IP) *syscall.RawSockaddr {
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sa := syscall.RawSockaddrInet4{Len: syscall.SizeofSockaddrInet4, Family: syscall.AF_INET}
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copy(sa.Addr[:], ip)
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return (*syscall.RawSockaddr)(unsafe.Pointer(&sa))
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}
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func cgoSockaddrInet6(ip IP, zone int) *syscall.RawSockaddr {
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sa := syscall.RawSockaddrInet6{Len: syscall.SizeofSockaddrInet6, Family: syscall.AF_INET6, Scope_id: uint32(zone)}
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copy(sa.Addr[:], ip)
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return (*syscall.RawSockaddr)(unsafe.Pointer(&sa))
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}
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