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net: don't recheck goosPrefersCgo in hostLookupOrder

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We only did it for testing. Remove the single test that required it.

Change-Id: Ib6c3a2debfd3f48e95af37f23fdfde847ff87a41
Reviewed-on: https://go-review.googlesource.com/c/go/+/490395
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Ian Lance Taylor 2023-04-28 10:29:58 -07:00 committed by Gopher Robot
parent 80d64adb79
commit 04f059f9ef
2 changed files with 3 additions and 22 deletions
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13
src/net/conf.go
View File

@ -124,7 +124,7 @@ func initConfVal() {
} }
// Some operating systems always prefer the cgo resolver. // Some operating systems always prefer the cgo resolver.
if goosPrefersCgo(runtime.GOOS) { if goosPrefersCgo() {
confVal.preferCgo = true confVal.preferCgo = true
return return
} }
@ -155,8 +155,8 @@ func initConfVal() {
// goosPreferCgo reports whether the GOOS value passed in prefers // goosPreferCgo reports whether the GOOS value passed in prefers
// the cgo resolver. // the cgo resolver.
func goosPrefersCgo(goos string) bool { func goosPrefersCgo() bool {
switch goos { switch runtime.GOOS {
// Historically on Windows and Plan 9 we prefer the // Historically on Windows and Plan 9 we prefer the
// cgo resolver (which doesn't use the cgo tool) rather than // cgo resolver (which doesn't use the cgo tool) rather than
// the go resolver. This is because originally these // the go resolver. This is because originally these
@ -227,13 +227,6 @@ func (c *conf) hostLookupOrder(r *Resolver, hostname string) (ret hostLookupOrde
// Neither resolver was explicitly requested // Neither resolver was explicitly requested
// and we have no preference. // and we have no preference.
// For testing purposes only, recheck the GOOS.
// This lets TestConfHostLookupOrder test different
// GOOS values.
if goosPrefersCgo(c.goos) {
return hostLookupCgo, nil
}
if bytealg.IndexByteString(hostname, '\\') != -1 || bytealg.IndexByteString(hostname, '%') != -1 { if bytealg.IndexByteString(hostname, '\\') != -1 || bytealg.IndexByteString(hostname, '%') != -1 {
// Don't deal with special form hostnames // Don't deal with special form hostnames
// with backslashes or '%'. // with backslashes or '%'.

12
src/net/conf_test.go
View File

@ -341,18 +341,6 @@ func TestConfHostLookupOrder(t *testing.T) {
nss: nssStr(t, "foo: bar"), nss: nssStr(t, "foo: bar"),
hostTests: []nssHostTest{{"google.com", "myhostname", hostLookupCgo}}, hostTests: []nssHostTest{{"google.com", "myhostname", hostLookupCgo}},
}, },
// Android should always use cgo.
{
name: "android",
c: &conf{
goos: "android",
},
resolv: defaultResolvConf,
nss: nssStr(t, ""),
hostTests: []nssHostTest{
{"x.com", "myhostname", hostLookupCgo},
},
},
// Issue 24393: make sure "Resolver.PreferGo = true" acts like netgo. // Issue 24393: make sure "Resolver.PreferGo = true" acts like netgo.
{ {
name: "resolver-prefergo", name: "resolver-prefergo",