github.com/megatontech/mynoteforgo@v0.0.0-20200507084910-5d0c6ea6e890/源码/net/cgo_resold.go (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build cgo,!netgo
     6  // +build android freebsd dragonfly openbsd
     7  
     8  package net
     9  
    10  /*
    11  #include <sys/types.h>
    12  #include <sys/socket.h>
    13  
    14  #include <netdb.h>
    15  */
    16  import "C"
    17  
    18  import "unsafe"
    19  
    20  func cgoNameinfoPTR(b []byte, sa *C.struct_sockaddr, salen C.socklen_t) (int, error) {
    21  	gerrno, err := C.getnameinfo(sa, salen, (*C.char)(unsafe.Pointer(&b[0])), C.size_t(len(b)), nil, 0, C.NI_NAMEREQD)
    22  	return int(gerrno), err
    23  }