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b615ad8fd5
GODEBUG=netdns=1 prints a one-time strategy decision. (cgo or go DNS lookups) GODEBUG=netdns=2 prints the per-lookup strategy as a function of the hostname. The new "netcgo" build tag forces cgo DNS lookups. GODEBUG=netdns=go (or existing build tag "netgo") forces Go DNS resolution. GODEBUG=netdns=cgo (or new build tag "netcgo") forces libc DNS resolution. Options can be combined with e.g. GODEBUG=netdns=go+1 or GODEBUG=netdns=2+cgo. Fixes #11322 Fixes #11450 Change-Id: I7a67e9f759fd0a02320e7803f9ded1638b19e861 Reviewed-on: https://go-review.googlesource.com/11584 Reviewed-by: Russ Cox <rsc@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
36 lines
952 B
Go
36 lines
952 B
Go
// Copyright 2011 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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package net
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func init() { netGo = true }
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type addrinfoErrno int
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func (eai addrinfoErrno) Error() string { return "<nil>" }
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func (eai addrinfoErrno) Temporary() bool { return false }
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func (eai addrinfoErrno) Timeout() bool { return false }
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func cgoLookupHost(name string) (addrs []string, err error, completed bool) {
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return nil, nil, false
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}
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func cgoLookupPort(network, service string) (port int, err error, completed bool) {
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return 0, nil, false
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}
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func cgoLookupIP(name string) (addrs []IPAddr, err error, completed bool) {
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return nil, nil, false
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}
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func cgoLookupCNAME(name string) (cname string, err error, completed bool) {
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return "", nil, false
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}
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func cgoLookupPTR(addr string) (ptrs []string, err error, completed bool) {
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return nil, nil, false
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}
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