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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef NET_BASE_DNS_UTIL_H_ | 5 #ifndef NET_BASE_DNS_UTIL_H_ |
6 #define NET_BASE_DNS_UTIL_H_ | 6 #define NET_BASE_DNS_UTIL_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/basictypes.h" | 11 #include "base/basictypes.h" |
12 #include "base/string_piece.h" | 12 #include "base/string_piece.h" |
13 #include "net/base/net_export.h" | 13 #include "net/base/net_export.h" |
14 | 14 |
15 namespace net { | 15 namespace net { |
16 | 16 |
17 // DNSDomainFromDot - convert a domain string to DNS format. From DJB's | 17 // DNSDomainFromDot - convert a domain string to DNS format. From DJB's |
18 // public domain DNS library. | 18 // public domain DNS library. |
19 // | 19 // |
20 // dotted: a string in dotted form: "www.google.com" | 20 // dotted: a string in dotted form: "www.google.com" |
21 // out: a result in DNS form: "\x03www\x06google\x03com\x00" | 21 // out: a result in DNS form: "\x03www\x06google\x03com\x00" |
22 NET_EXPORT_PRIVATE bool DNSDomainFromDot(const base::StringPiece& dotted, | 22 NET_EXPORT_PRIVATE bool DNSDomainFromDot(const std::string& dotted, |
23 std::string* out); | 23 std::string* out); |
24 | 24 |
25 // DNSDomainToString coverts a domain in DNS format to a dotted string. | 25 // DNSDomainToString coverts a domain in DNS format to a dotted string. |
26 NET_EXPORT_PRIVATE std::string DNSDomainToString( | 26 NET_EXPORT_PRIVATE std::string DNSDomainToString(const std::string& domain); |
27 const base::StringPiece& domain); | |
28 | 27 |
29 // Returns true iff the given character is in the set of valid DNS label | 28 // Returns true iff the given character is in the set of valid DNS label |
30 // characters as given in RFC 3490, 4.1, 3(a) | 29 // characters as given in RFC 3490, 4.1, 3(a) |
31 NET_EXPORT_PRIVATE bool IsSTD3ASCIIValidCharacter(char c); | 30 NET_EXPORT_PRIVATE bool IsSTD3ASCIIValidCharacter(char c); |
32 | 31 |
33 // Returns the hostname by trimming the ending dot, if one exists. | 32 // Returns the hostname by trimming the ending dot, if one exists. |
34 NET_EXPORT std::string TrimEndingDot(const base::StringPiece& host); | 33 NET_EXPORT std::string TrimEndingDot(const std::string& host); |
35 | |
36 // TODO(szym): remove all definitions below once DnsRRResolver migrates to | |
37 // DnsClient | |
38 | 34 |
39 // DNS class types. | 35 // DNS class types. |
40 static const uint16 kClassIN = 1; | 36 static const uint16 kClassIN = 1; |
41 | 37 |
42 // DNS resource record types. See | 38 // DNS resource record types. See |
43 // http://www.iana.org/assignments/dns-parameters | 39 // http://www.iana.org/assignments/dns-parameters |
44 // WARNING: if you're adding any new values here you may need to add them to | 40 // WARNING: if you're adding any new values here you may need to add them to |
45 // dnsrr_resolver.cc:DnsRRIsParsedByWindows. | 41 // dnsrr_resolver.cc:DnsRRIsParsedByWindows. |
46 static const uint16 kDNS_A = 1; | 42 static const uint16 kDNS_A = 1; |
47 static const uint16 kDNS_CNAME = 5; | 43 static const uint16 kDNS_CNAME = 5; |
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91 unsigned len_; | 87 unsigned len_; |
92 const unsigned packet_len_; | 88 const unsigned packet_len_; |
93 | 89 |
94 DISALLOW_COPY_AND_ASSIGN(DnsResponseBuffer); | 90 DISALLOW_COPY_AND_ASSIGN(DnsResponseBuffer); |
95 }; | 91 }; |
96 | 92 |
97 | 93 |
98 } // namespace net | 94 } // namespace net |
99 | 95 |
100 #endif // NET_BASE_DNS_UTIL_H_ | 96 #endif // NET_BASE_DNS_UTIL_H_ |
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