Revert "net: ensure that malformed domain names report a consistent error"

This reverts commit bb8c2e19a7fe2ca2283eca44dba2047c9f4307fe.

Change-Id: I9bc089e9f2296805ef055b98e8c86ba73af30226
Reviewed-on: https://go-review.googlesource.com/18439
Reviewed-by: Russ Cox <rsc@golang.org>

1 files changed, 0 insertions, 45 deletions

diff --git a/src/net/ip_test.go b/src/net/ip_test.go
index 69ef5a1ae5..3d95a73c09 100644
--- a/src/net/ip_test.go
+++ b/src/net/ip_test.go
@@ -540,48 +540,3 @@ func TestIPAddrScope(t *testing.T) {
 		}
 	}
 }
-
-func TestLookupBadName(t *testing.T) {
-	// Check that we get the same error for invalid names regardless of lookup algorithm.
-
-	mode := ""
-	check := func(fn string, err error) {
-		if e, ok := err.(*DNSError); !ok || e.Err != "invalid domain name" {
-			t.Errorf("%s: %s(\"!!!.local\") = %T(%v), want DNSError(invalid domain name)", mode, fn, err, err)
-		}
-	}
-
-	for i, fn := range []func() func(){forceGoDNS, forceCgoDNS} {
-		fixup := fn()
-		if fixup == nil {
-			continue
-		}
-		mode = "netgo"
-		if i == 1 {
-			mode = "netcgo"
-		}
-
-		_, err := LookupHost("!!!.local")
-		check("LookupHost", err)
-
-		_, err = LookupIP("!!!.local")
-		check("LookupIP", err)
-
-		_, err = LookupCNAME("!!!.local")
-		check("LookupCNAME", err)
-
-		_, _, err = LookupSRV("x", "tcp", "!!!.local")
-		check("LookupSRV", err)
-
-		_, err = LookupMX("!!!.local")
-		check("LookupMX", err)
-
-		_, err = LookupNS("!!!.local")
-		check("LookupNS", err)
-
-		_, err = LookupTXT("!!!.local")
-		check("LookupTXT", err)
-
-		fixup()
-	}
-}