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1 // Copyright 2008, Google Inc. | 1 // Copyright 2008, Google Inc. |
2 // All rights reserved. | 2 // All rights reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // * Redistributions of source code must retain the above copyright | 8 // * Redistributions of source code must retain the above copyright |
9 // notice, this list of conditions and the following disclaimer. | 9 // notice, this list of conditions and the following disclaimer. |
10 // * Redistributions in binary form must reproduce the above | 10 // * Redistributions in binary form must reproduce the above |
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23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | 29 |
30 #ifndef GOOGLEURL_SRC_URL_CANON_IP_H__ | 30 #ifndef GOOGLEURL_SRC_URL_CANON_IP_H__ |
31 #define GOOGLEURL_SRC_URL_CANON_IP_H__ | 31 #define GOOGLEURL_SRC_URL_CANON_IP_H__ |
32 | 32 |
33 #include "base/string16.h" | 33 #include "url/url_canon_ip.h" |
34 #include "googleurl/src/url_canon.h" | |
35 #include "googleurl/src/url_common.h" | |
36 #include "googleurl/src/url_parse.h" | |
37 | |
38 namespace url_canon { | |
39 | |
40 // Writes the given IPv4 address to |output|. | |
41 GURL_API void AppendIPv4Address(const unsigned char address[4], | |
42 CanonOutput* output); | |
43 | |
44 // Writes the given IPv6 address to |output|. | |
45 GURL_API void AppendIPv6Address(const unsigned char address[16], | |
46 CanonOutput* output); | |
47 | |
48 // Searches the host name for the portions of the IPv4 address. On success, | |
49 // each component will be placed into |components| and it will return true. | |
50 // It will return false if the host can not be separated as an IPv4 address | |
51 // or if there are any non-7-bit characters or other characters that can not | |
52 // be in an IP address. (This is important so we fail as early as possible for | |
53 // common non-IP hostnames.) | |
54 // | |
55 // Not all components may exist. If there are only 3 components, for example, | |
56 // the last one will have a length of -1 or 0 to indicate it does not exist. | |
57 // | |
58 // Note that many platform's inet_addr will ignore everything after a space | |
59 // in certain curcumstances if the stuff before the space looks like an IP | |
60 // address. IE6 is included in this. We do NOT handle this case. In many cases, | |
61 // the browser's canonicalization will get run before this which converts | |
62 // spaces to %20 (in the case of IE7) or rejects them (in the case of | |
63 // Mozilla), so this code path never gets hit. Our host canonicalization will | |
64 // notice these spaces and escape them, which will make IP address finding | |
65 // fail. This seems like better behavior than stripping after a space. | |
66 GURL_API bool FindIPv4Components(const char* spec, | |
67 const url_parse::Component& host, | |
68 url_parse::Component components[4]); | |
69 GURL_API bool FindIPv4Components(const char16* spec, | |
70 const url_parse::Component& host, | |
71 url_parse::Component components[4]); | |
72 | |
73 // Converts an IPv4 address to a 32-bit number (network byte order). | |
74 // | |
75 // Possible return values: | |
76 // IPV4 - IPv4 address was successfully parsed. | |
77 // BROKEN - Input was formatted like an IPv4 address, but overflow occurred | |
78 // during parsing. | |
79 // NEUTRAL - Input couldn't possibly be interpreted as an IPv4 address. | |
80 // It might be an IPv6 address, or a hostname. | |
81 // | |
82 // On success, |num_ipv4_components| will be populated with the number of | |
83 // components in the IPv4 address. | |
84 GURL_API CanonHostInfo::Family IPv4AddressToNumber( | |
85 const char* spec, | |
86 const url_parse::Component& host, | |
87 unsigned char address[4], | |
88 int* num_ipv4_components); | |
89 GURL_API CanonHostInfo::Family IPv4AddressToNumber( | |
90 const char16* spec, | |
91 const url_parse::Component& host, | |
92 unsigned char address[4], | |
93 int* num_ipv4_components); | |
94 | |
95 // Converts an IPv6 address to a 128-bit number (network byte order), returning | |
96 // true on success. False means that the input was not a valid IPv6 address. | |
97 // | |
98 // NOTE that |host| is expected to be surrounded by square brackets. | |
99 // i.e. "[::1]" rather than "::1". | |
100 GURL_API bool IPv6AddressToNumber(const char* spec, | |
101 const url_parse::Component& host, | |
102 unsigned char address[16]); | |
103 GURL_API bool IPv6AddressToNumber(const char16* spec, | |
104 const url_parse::Component& host, | |
105 unsigned char address[16]); | |
106 | |
107 } // namespace url_canon | |
108 | 34 |
109 #endif // GOOGLEURL_SRC_URL_CANON_IP_H__ | 35 #endif // GOOGLEURL_SRC_URL_CANON_IP_H__ |
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