From e0a1ccb64a637673195804513902cba6b1d4e97c Mon Sep 17 00:00:00 2001
From: Niall Sheridan <nsheridan@gmail.com>
Date: Mon, 31 Oct 2016 16:36:17 +0000
Subject: Update dependencies

---
 vendor/golang.org/x/net/http2/transport.go | 41 ++++++++----------------------
 1 file changed, 10 insertions(+), 31 deletions(-)

(limited to 'vendor/golang.org/x/net/http2/transport.go')

diff --git a/vendor/golang.org/x/net/http2/transport.go b/vendor/golang.org/x/net/http2/transport.go
index b939fed..129c8e0 100644
--- a/vendor/golang.org/x/net/http2/transport.go
+++ b/vendor/golang.org/x/net/http2/transport.go
@@ -635,39 +635,17 @@ func checkConnHeaders(req *http.Request) error {
 	return nil
 }
 
-func bodyAndLength(req *http.Request) (body io.Reader, contentLen int64) {
-	body = req.Body
-	if body == nil {
-		return nil, 0
+// actualContentLength returns a sanitized version of
+// req.ContentLength, where 0 actually means zero (not unknown) and -1
+// means unknown.
+func actualContentLength(req *http.Request) int64 {
+	if req.Body == nil {
+		return 0
 	}
 	if req.ContentLength != 0 {
-		return req.Body, req.ContentLength
-	}
-	// Don't try to sniff the size if they're doing an expect
-	// request (Issue 16002):
-	if req.Header.Get("Expect") == "100-continue" {
-		return req.Body, -1
-	}
-
-	// We have a body but a zero content length. Test to see if
-	// it's actually zero or just unset.
-	var buf [1]byte
-	n, rerr := body.Read(buf[:])
-	if rerr != nil && rerr != io.EOF {
-		return errorReader{rerr}, -1
-	}
-	if n == 1 {
-		// Oh, guess there is data in this Body Reader after all.
-		// The ContentLength field just wasn't set.
-		// Stitch the Body back together again, re-attaching our
-		// consumed byte.
-		if rerr == io.EOF {
-			return bytes.NewReader(buf[:]), 1
-		}
-		return io.MultiReader(bytes.NewReader(buf[:]), body), -1
+		return req.ContentLength
 	}
-	// Body is actually zero bytes.
-	return nil, 0
+	return -1
 }
 
 func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) {
@@ -691,8 +669,9 @@ func (cc *ClientConn) RoundTrip(req *http.Request) (*http.Response, error) {
 		return nil, errClientConnUnusable
 	}
 
-	body, contentLen := bodyAndLength(req)
+	body := req.Body
 	hasBody := body != nil
+	contentLen := actualContentLength(req)
 
 	// TODO(bradfitz): this is a copy of the logic in net/http. Unify somewhere?
 	var requestedGzip bool
-- 
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