581072a866
Add support for TLS extensions in general and Next Protocol Negotiation in particular. R=rsc CC=golang-dev https://golang.org/cl/181045
43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package tls
|
|
|
|
// The record reader handles reading from the connection and reassembling TLS
|
|
// record structures. It loops forever doing this and writes the TLS records to
|
|
// it's outbound channel. On error, it closes its outbound channel.
|
|
|
|
import (
|
|
"io"
|
|
"bufio"
|
|
)
|
|
|
|
// recordReader loops, reading TLS records from source and writing them to the
|
|
// given channel. The channel is closed on EOF or on error.
|
|
func recordReader(c chan<- *record, source io.Reader) {
|
|
defer close(c)
|
|
buf := bufio.NewReader(source)
|
|
|
|
for {
|
|
var header [5]byte
|
|
n, _ := buf.Read(&header)
|
|
if n != 5 {
|
|
return
|
|
}
|
|
|
|
recordLength := int(header[3])<<8 | int(header[4])
|
|
if recordLength > maxTLSCiphertext {
|
|
return
|
|
}
|
|
|
|
payload := make([]byte, recordLength)
|
|
n, _ = buf.Read(payload)
|
|
if n != recordLength {
|
|
return
|
|
}
|
|
|
|
c <- &record{recordType(header[0]), header[1], header[2], payload}
|
|
}
|
|
}
|