27d6b51071
Patch by Svante Signell.
Reviewed-on: https://go-review.googlesource.com/c/160822
From-SVN: r268459
37 lines
871 B
Go
37 lines
871 B
Go
// Copyright 2015 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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// +build cgo,!netgo
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// +build aix darwin hurd linux,!android netbsd solaris
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package net
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/*
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netdb.h>
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*/
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import (
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"syscall"
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)
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//extern getnameinfo
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func libc_getnameinfo(*syscall.RawSockaddr, syscall.Socklen_t, *byte, syscall.Size_t, *byte, syscall.Size_t, int) int
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func cgoNameinfoPTR(b []byte, sa *syscall.RawSockaddr, salen syscall.Socklen_t) (int, error) {
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syscall.Entersyscall()
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gerrno := libc_getnameinfo(sa, salen, &b[0], syscall.Size_t(len(b)), nil, 0, syscall.NI_NAMEREQD)
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syscall.Exitsyscall()
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var err error
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if gerrno == syscall.EAI_SYSTEM {
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errno := syscall.GetErrno()
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if errno != 0 {
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err = errno
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}
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}
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return gerrno, err
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}
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