Fixes some memory leaks in //runtime/bin

runtime/bin/socket_linux.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(TARGET_OS_LINUX)
 
+#include "bin/socket.h"
+#include "bin/socket_linux.h"
+
 #include <errno.h>  // NOLINT
 #include <stdio.h>  // NOLINT
 #include <stdlib.h>  // NOLINT
 #include <string.h>  // NOLINT
 #include <sys/stat.h>  // NOLINT
 #include <unistd.h>  // NOLINT
 #include <net/if.h>  // NOLINT
 #include <netinet/tcp.h>  // NOLINT
 #include <ifaddrs.h>  // NOLINT
 
 #include "bin/fdutils.h"
 #include "bin/file.h"
-#include "bin/socket.h"
 #include "bin/thread.h"
 #include "platform/signal_blocker.h"
 
-
 namespace dart {
 namespace bin {
 
 SocketAddress::SocketAddress(struct sockaddr* sa) {
   ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN);
   if (!Socket::FormatNumericAddress(
           *reinterpret_cast<RawAddr*>(sa), as_string_, INET6_ADDRSTRLEN)) {
     as_string_[0] = 0;
   }
   socklen_t salen = GetAddrLength(*reinterpret_cast<RawAddr*>(sa));
@@ skipping 313 matching lines @@
   intptr_t count = 0;
   for (struct ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
     if (ShouldIncludeIfaAddrs(ifa, lookup_family)) count++;
   }
 
   AddressList<InterfaceSocketAddress>* addresses =
       new AddressList<InterfaceSocketAddress>(count);
   int i = 0;
   for (struct ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
     if (ShouldIncludeIfaAddrs(ifa, lookup_family)) {
+      char* ifa_name = DartUtils::ScopedCopyCString(ifa->ifa_name);
       addresses->SetAt(i, new InterfaceSocketAddress(
-          ifa->ifa_addr, strdup(ifa->ifa_name), if_nametoindex(ifa->ifa_name)));
+          ifa->ifa_addr, ifa_name, if_nametoindex(ifa->ifa_name)));
       i++;
     }
   }
   freeifaddrs(ifaddr);
   return addresses;
 }
 
 
 intptr_t ServerSocket::CreateBindListen(const RawAddr& addr,
                                         intptr_t backlog,
@@ skipping 195 matching lines @@
   mreq.gr_interface = interfaceIndex;
   memmove(&mreq.gr_group, &addr.ss, SocketAddress::GetAddrLength(addr));
   return NO_RETRY_EXPECTED(
       setsockopt(fd, proto, MCAST_LEAVE_GROUP, &mreq, sizeof(mreq))) == 0;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)