Remove usage of legacy inet_ntop from dart:io.

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 <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 <netinet/tcp.h>  // NOLINT
 #include <ifaddrs.h>  // NOLINT
 
 #include "bin/fdutils.h"
 #include "bin/file.h"
 #include "bin/log.h"
 #include "bin/socket.h"
 
 
 namespace dart {
 namespace bin {
 
-SocketAddress::SocketAddress(struct sockaddr* sockaddr) {
+SocketAddress::SocketAddress(struct sockaddr* sa) {
   ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN);
-  RawAddr* raw = reinterpret_cast<RawAddr*>(sockaddr);
-  const char* result;
-  if (sockaddr->sa_family == AF_INET) {
-    result = inet_ntop(sockaddr->sa_family,
-                       &raw->in.sin_addr,
-                       as_string_,
-                       INET_ADDRSTRLEN);
-  } else {
-    ASSERT(sockaddr->sa_family == AF_INET6);
-    result = inet_ntop(sockaddr->sa_family,
-                       &raw->in6.sin6_addr,
-                       as_string_,
-                       INET6_ADDRSTRLEN);
+  socklen_t salen = GetAddrLength(reinterpret_cast<RawAddr*>(sa));
+  if (TEMP_FAILURE_RETRY(getnameinfo(sa,
+                                     salen,
+                                     as_string_,
+                                     INET6_ADDRSTRLEN,
+                                     NULL,
+                                     0,
+                                     NI_NUMERICHOST)) != 0) {
+    as_string_[0] = 0;
   }
-  if (result == NULL) as_string_[0] = 0;
-  memmove(reinterpret_cast<void *>(&addr_),
-          sockaddr,
-          GetAddrLength(raw));
+  memmove(reinterpret_cast<void *>(&addr_), sa, salen);
 }
 
 
 bool Socket::Initialize() {
   // Nothing to do on Linux.
   return true;
 }
 
 
 intptr_t Socket::Create(RawAddr addr) {
@@ skipping 95 matching lines @@
   if (TEMP_FAILURE_RETRY(
           getpeername(fd,
                       &raw.addr,
                       &size))) {
     const int kBufferSize = 1024;
     char error_buf[kBufferSize];
     Log::PrintErr("Error getpeername: %s\n",
                   strerror_r(errno, error_buf, kBufferSize));
     return false;
   }
-  const void* src;
-  if (raw.ss.ss_family == AF_INET6) {
-    src = reinterpret_cast<const void*>(&raw.in6.sin6_addr);
-  } else {
-    src = reinterpret_cast<const void*>(&raw.in.sin_addr);
-  }
-  if (inet_ntop(raw.ss.ss_family,
-                src,
-                host,
-                INET_ADDRSTRLEN) == NULL) {
+  if (TEMP_FAILURE_RETRY(getnameinfo(&raw.addr,
+                                     size,
+                                     host,
+                                     INET6_ADDRSTRLEN,
+                                     NULL,
+                                     0,
+                                     NI_NUMERICHOST)) != 0) {
     const int kBufferSize = 1024;
     char error_buf[kBufferSize];
-    Log::PrintErr("Error inet_ntop: %s\n",
+    Log::PrintErr("Error getnameinfo: %s\n",
                   strerror_r(errno, error_buf, kBufferSize));
     return false;
   }
   *port = SocketAddress::GetAddrPort(&raw);
   return true;
 }
 
 
 void Socket::GetError(intptr_t fd, OSError* os_error) {
   int len = sizeof(errno);
@@ skipping 242 matching lines @@
                                        IPPROTO_TCP,
                                        TCP_NODELAY,
                                        reinterpret_cast<char *>(&on),
                                        sizeof(on))) == 0;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_LINUX)