go cgo_resnew 源码
golang cgo_resnew 代码
文件路径：/src/net/cgo_resnew.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 && (darwin || (linux && !android) || netbsd || solaris)
package net
/*
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
*/
import "C"
import "unsafe"
func cgoNameinfoPTR(b []byte, sa *C.struct_sockaddr, salen C.socklen_t) (int, error) {
gerrno, err := C.getnameinfo(sa, salen, (*C.char)(unsafe.Pointer(&b[0])), C.socklen_t(len(b)), nil, 0, C.NI_NAMEREQD)
return int(gerrno), err
}
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