| // Copyright 2019 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 | 
 |  | 
 | package net | 
 |  | 
 | /* | 
 | #include <sys/types.h> | 
 | #include <sys/socket.h> | 
 |  | 
 | #include <netdb.h> | 
 | */ | 
 | import "C" | 
 |  | 
 | import "unsafe" | 
 |  | 
 | const cgoAddrInfoFlags = C.AI_CANONNAME | 
 |  | 
 | func cgoNameinfoPTR(b []byte, sa *C.struct_sockaddr, salen C.socklen_t) (int, error) { | 
 | 	gerrno, err := C.getnameinfo(sa, C.size_t(salen), (*C.char)(unsafe.Pointer(&b[0])), C.size_t(len(b)), nil, 0, C.NI_NAMEREQD) | 
 | 	return int(gerrno), err | 
 | } |