go cgo_socknew 源码
golang cgo_socknew 代码
文件路径：/src/net/cgo_socknew.go
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build cgo && !netgo && (android || linux || solaris)
package net
/*
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
*/
import "C"
import (
"syscall"
"unsafe"
)
func cgoSockaddrInet4(ip IP) *C.struct_sockaddr {
sa := syscall.RawSockaddrInet4{Family: syscall.AF_INET}
copy(sa.Addr[:], ip)
return (*C.struct_sockaddr)(unsafe.Pointer(&sa))
}
func cgoSockaddrInet6(ip IP, zone int) *C.struct_sockaddr {
sa := syscall.RawSockaddrInet6{Family: syscall.AF_INET6, Scope_id: uint32(zone)}
copy(sa.Addr[:], ip)
return (*C.struct_sockaddr)(unsafe.Pointer(&sa))
}
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