dart:io | Fix a few bugs in the Android port of dart:io.

runtime/bin/socket_android.cc

 // Copyright (c) 2012, 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_ANDROID)
 
 #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 "bin/fdutils.h"
+#include "bin/file.h"
+#include "bin/log.h"
 #include "bin/socket.h"
-#include "bin/fdutils.h"
-#include "bin/log.h"
 
 
 namespace dart {
 namespace bin {
 
 SocketAddress::SocketAddress(struct addrinfo* addrinfo) {
   ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN);
   RawAddr* raw = reinterpret_cast<RawAddr*>(addrinfo->ai_addr);
   const char* result = inet_ntop(addrinfo->ai_family,
                                  &raw->in.sin_addr,
@@ skipping 117 matching lines @@
   socklen_t len = sizeof(errorNumber);
   getsockopt(fd,
              SOL_SOCKET,
              SO_ERROR,
              reinterpret_cast<void*>(&errorNumber),
              &len);
   os_error->SetCodeAndMessage(OSError::kSystem, errorNumber);
 }
 
 
+int Socket::GetType(intptr_t fd) {
+  struct stat buf;
+  int result = fstat(fd, &buf);
+  if (result == -1) return -1;
+  if (S_ISCHR(buf.st_mode)) return File::kTerminal;
+  if (S_ISFIFO(buf.st_mode)) return File::kPipe;
+  if (S_ISREG(buf.st_mode)) return File::kFile;
+  return File::kOther;
+}
+
+
 intptr_t Socket::GetStdioHandle(int num) {
   return static_cast<intptr_t>(num);
 }
 
 
 SocketAddresses* Socket::LookupAddress(const char* host,
                                        int type,
                                        OSError** os_error) {
   // Perform a name lookup for a host name.
   struct addrinfo hints;
@@ skipping 126 matching lines @@
                                        SOL_TCP,
                                        TCP_NODELAY,
                                        reinterpret_cast<char *>(&on),
                                        sizeof(on))) == 0;
 }
 
 }  // namespace bin
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_ANDROID)