Move googleurl into the Chrome repo.

url/url_canon_ip.h

+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef GOOGLEURL_SRC_URL_CANON_IP_H__
+#define GOOGLEURL_SRC_URL_CANON_IP_H__
+
+#include "base/string16.h"
+#include "googleurl/src/url_canon.h"
+#include "googleurl/src/url_common.h"
+#include "googleurl/src/url_parse.h"
+
+namespace url_canon {
+
+// Writes the given IPv4 address to |output|.
+GURL_API void AppendIPv4Address(const unsigned char address[4],
+                                CanonOutput* output);
+
+// Writes the given IPv6 address to |output|.
+GURL_API void AppendIPv6Address(const unsigned char address[16],
+                                CanonOutput* output);
+
+// Searches the host name for the portions of the IPv4 address. On success,
+// each component will be placed into |components| and it will return true.
+// It will return false if the host can not be separated as an IPv4 address
+// or if there are any non-7-bit characters or other characters that can not
+// be in an IP address. (This is important so we fail as early as possible for
+// common non-IP hostnames.)
+//
+// Not all components may exist. If there are only 3 components, for example,
+// the last one will have a length of -1 or 0 to indicate it does not exist.
+//
+// Note that many platform's inet_addr will ignore everything after a space
+// in certain curcumstances if the stuff before the space looks like an IP
+// address. IE6 is included in this. We do NOT handle this case. In many cases,
+// the browser's canonicalization will get run before this which converts
+// spaces to %20 (in the case of IE7) or rejects them (in the case of
+// Mozilla), so this code path never gets hit. Our host canonicalization will
+// notice these spaces and escape them, which will make IP address finding
+// fail. This seems like better behavior than stripping after a space.
+GURL_API bool FindIPv4Components(const char* spec,
+                                 const url_parse::Component& host,
+                                 url_parse::Component components[4]);
+GURL_API bool FindIPv4Components(const char16* spec,
+                                 const url_parse::Component& host,
+                                 url_parse::Component components[4]);
+
+// Converts an IPv4 address to a 32-bit number (network byte order).
+//
+// Possible return values:
+//   IPV4    - IPv4 address was successfully parsed.
+//   BROKEN  - Input was formatted like an IPv4 address, but overflow occurred
+//             during parsing.
+//   NEUTRAL - Input couldn't possibly be interpreted as an IPv4 address.
+//             It might be an IPv6 address, or a hostname.
+//
+// On success, |num_ipv4_components| will be populated with the number of
+// components in the IPv4 address.
+GURL_API CanonHostInfo::Family IPv4AddressToNumber(
+    const char* spec,
+    const url_parse::Component& host,
+    unsigned char address[4],
+    int* num_ipv4_components);
+GURL_API CanonHostInfo::Family IPv4AddressToNumber(
+    const char16* spec,
+    const url_parse::Component& host,
+    unsigned char address[4],
+    int* num_ipv4_components);
+
+// Converts an IPv6 address to a 128-bit number (network byte order), returning
+// true on success. False means that the input was not a valid IPv6 address.
+//
+// NOTE that |host| is expected to be surrounded by square brackets.
+// i.e. "[::1]" rather than "::1".
+GURL_API bool IPv6AddressToNumber(const char* spec,
+                                  const url_parse::Component& host,
+                                  unsigned char address[16]);
+GURL_API bool IPv6AddressToNumber(const char16* spec,
+                                  const url_parse::Component& host,
+                                  unsigned char address[16]);
+
+}  // namespace url_canon
+
+#endif  // GOOGLEURL_SRC_URL_CANON_IP_H__