Merge 84251, 85083, 85188, 85375.

net/base/address_list.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/base/address_list.h"
 
 #include <stdlib.h>
 
 #include "base/logging.h"
 #include "net/base/net_util.h"
 #include "net/base/sys_addrinfo.h"
 
 namespace net {
 
 namespace {
 
 char* do_strdup(const char* src) {
 #if defined(OS_WIN)
   return _strdup(src);
 #else
   return strdup(src);
 #endif
 }
 
-// Make a copy of |info| (the dynamically-allocated parts are copied as well).
-// If |recursive| is true, chained entries via ai_next are copied too.
-// Copy returned by this function should be deleted using
-// DeleteCopyOfAddrinfo(), and NOT freeaddrinfo().
-struct addrinfo* CreateCopyOfAddrinfo(const struct addrinfo* info,
-                                      bool recursive) {
-  DCHECK(info);
-  struct addrinfo* copy = new addrinfo;
-
-  // Copy all the fields (some of these are pointers, we will fix that next).
-  memcpy(copy, info, sizeof(addrinfo));
-
-  // ai_canonname is a NULL-terminated string.
-  if (info->ai_canonname) {
-    copy->ai_canonname = do_strdup(info->ai_canonname);
-  }
-
-  // ai_addr is a buffer of length ai_addrlen.
-  if (info->ai_addr) {
-    copy->ai_addr = reinterpret_cast<sockaddr *>(new char[info->ai_addrlen]);
-    memcpy(copy->ai_addr, info->ai_addr, info->ai_addrlen);
-  }
-
-  // Recursive copy.
-  if (recursive && info->ai_next)
-    copy->ai_next = CreateCopyOfAddrinfo(info->ai_next, recursive);
-  else
-    copy->ai_next = NULL;
-
-  return copy;
-}
-
-// Free an addrinfo that was created by CreateCopyOfAddrinfo().
-void FreeMyAddrinfo(struct addrinfo* info) {
-  DCHECK(info);
-  if (info->ai_canonname)
-    free(info->ai_canonname);  // Allocated by strdup.
-
-  if (info->ai_addr)
-    delete [] reinterpret_cast<char*>(info->ai_addr);
-
-  struct addrinfo* next = info->ai_next;
-
-  delete info;
-
-  // Recursive free.
-  if (next)
-    FreeMyAddrinfo(next);
-}
-
 // Assign the port for all addresses in the list.
 void SetPortRecursive(struct addrinfo* info, int port) {
   uint16* port_field = GetPortFieldFromAddrinfo(info);
   if (port_field)
     *port_field = htons(port);
 
   // Assign recursively.
   if (info->ai_next)
     SetPortRecursive(info->ai_next, port);
 }
@@ skipping 191 matching lines @@
   return new AddressList(new Data(ai, false /*is_system_created*/));
 }
 
 
 AddressList::Data::Data(struct addrinfo* ai, bool is_system_created)
     : head(ai), is_system_created(is_system_created) {
   DCHECK(head);
 }
 
 AddressList::Data::~Data() {
-  // Call either freeaddrinfo(head), or FreeMyAddrinfo(head), depending who
-  // created the data.
+  // Call either freeaddrinfo(head), or FreeCopyOfAddrinfo(head), depending on
+  // who created the data.
   if (is_system_created)
     freeaddrinfo(head);
   else
-    FreeMyAddrinfo(head);
+    FreeCopyOfAddrinfo(head);
 }
 
 }  // namespace net