libgo: Update from Go 1.5 to Go 1.5.1.

    
    Reviewed-on: https://go-review.googlesource.com/16527

From-SVN: r229624

5 files changed, 49 insertions, 2 deletions

diff --git a/libgo/go/net/cgo_solaris.go b/libgo/go/net/cgo_solaris.go
index c5a7a35..05811c6 100644
--- a/libgo/go/net/cgo_solaris.go
+++ b/libgo/go/net/cgo_solaris.go
@@ -7,7 +7,7 @@
 package net
 
 /*
-#cgo LDFLAGS: -lsocket -lnsl
+#cgo LDFLAGS: -lsocket -lnsl -lsendfile
 #include <netdb.h>
 */
 
diff --git a/libgo/go/net/http/httputil/reverseproxy.go b/libgo/go/net/http/httputil/reverseproxy.go
index 3b7a184..c8e1132 100644
--- a/libgo/go/net/http/httputil/reverseproxy.go
+++ b/libgo/go/net/http/httputil/reverseproxy.go
@@ -105,7 +105,7 @@ type requestCanceler interface {
 }
 
 type runOnFirstRead struct {
-	io.Reader
+	io.Reader // optional; nil means empty body
 
 	fn func() // Run before first Read, then set to nil
 }
@@ -115,6 +115,9 @@ func (c *runOnFirstRead) Read(bs []byte) (int, error) {
 		c.fn()
 		c.fn = nil
 	}
+	if c.Reader == nil {
+		return 0, io.EOF
+	}
 	return c.Reader.Read(bs)
 }
 
diff --git a/libgo/go/net/http/httputil/reverseproxy_test.go b/libgo/go/net/http/httputil/reverseproxy_test.go
index 25947e6..80a26ab 100644
--- a/libgo/go/net/http/httputil/reverseproxy_test.go
+++ b/libgo/go/net/http/httputil/reverseproxy_test.go
@@ -7,6 +7,7 @@
 package httputil
 
 import (
+	"bufio"
 	"io/ioutil"
 	"log"
 	"net/http"
@@ -281,3 +282,41 @@ func TestReverseProxyCancellation(t *testing.T) {
 		t.Fatal("DefaultClient.Do() returned nil error")
 	}
 }
+
+func req(t *testing.T, v string) *http.Request {
+	req, err := http.ReadRequest(bufio.NewReader(strings.NewReader(v)))
+	if err != nil {
+		t.Fatal(err)
+	}
+	return req
+}
+
+// Issue 12344
+func TestNilBody(t *testing.T) {
+	backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte("hi"))
+	}))
+	defer backend.Close()
+
+	frontend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
+		backURL, _ := url.Parse(backend.URL)
+		rp := NewSingleHostReverseProxy(backURL)
+		r := req(t, "GET / HTTP/1.0\r\n\r\n")
+		r.Body = nil // this accidentally worked in Go 1.4 and below, so keep it working
+		rp.ServeHTTP(w, r)
+	}))
+	defer frontend.Close()
+
+	res, err := http.Get(frontend.URL)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer res.Body.Close()
+	slurp, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if string(slurp) != "hi" {
+		t.Errorf("Got %q; want %q", slurp, "hi")
+	}
+}
diff --git a/libgo/go/net/lookup.go b/libgo/go/net/lookup.go
index a7ceee8..9008322 100644
--- a/libgo/go/net/lookup.go
+++ b/libgo/go/net/lookup.go
@@ -123,6 +123,9 @@ func lookupIPDeadline(host string, deadline time.Time) (addrs []IPAddr, err erro
 
 // LookupPort looks up the port for the given network and service.
 func LookupPort(network, service string) (port int, err error) {
+	if n, i, ok := dtoi(service, 0); ok && i == len(service) {
+		return n, nil
+	}
 	return lookupPort(network, service)
 }
 
diff --git a/libgo/go/net/port_test.go b/libgo/go/net/port_test.go
index 2dacd97..258a5bd 100644
--- a/libgo/go/net/port_test.go
+++ b/libgo/go/net/port_test.go
@@ -27,6 +27,7 @@ var portTests = []struct {
 	{"tcp", "time", 37, true},
 	{"tcp", "domain", 53, true},
 	{"tcp", "finger", 79, true},
+	{"tcp", "42", 42, true},
 
 	{"udp", "echo", 7, true},
 	{"udp", "tftp", 69, true},
@@ -36,6 +37,7 @@ var portTests = []struct {
 	{"udp", "ntp", 123, true},
 	{"udp", "snmp", 161, true},
 	{"udp", "syslog", 514, true},
+	{"udp", "42", 42, true},
 
 	{"--badnet--", "zzz", 0, false},
 	{"tcp", "--badport--", 0, false},