15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved.
25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be
35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file.
45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef NET_BASE_DNS_UTIL_H_
65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define NET_BASE_DNS_UTIL_H_
75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string>
95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h"
11c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles)#include "base/strings/string_piece.h"
125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_export.h"
135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace net {
155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DNSDomainFromDot - convert a domain string to DNS format. From DJB's
175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// public domain DNS library.
185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//
195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//   dotted: a string in dotted form: "www.google.com"
205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)//   out: a result in DNS form: "\x03www\x06google\x03com\x00"
215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NET_EXPORT_PRIVATE bool DNSDomainFromDot(const base::StringPiece& dotted,
225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)                                         std::string* out);
235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// DNSDomainToString converts a domain in DNS format to a dotted string.
255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Excludes the dot at the end.
265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NET_EXPORT_PRIVATE std::string DNSDomainToString(
275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)    const base::StringPiece& domain);
285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Returns the hostname by trimming the ending dot, if one exists.
305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)NET_EXPORT std::string TrimEndingDot(const base::StringPiece& host);
315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}  // namespace net
335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)
345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif  // NET_BASE_DNS_UTIL_H_
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