[NaCk SDK] nacl_io: Don't assume ~S_IFMT are the mode bits.

native_client_sdk/src/tests/nacl_io_test/kernel_proxy_test.cc

 // Copyright (c) 2012 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 <errno.h>
 #include <fcntl.h>
 #include <pthread.h>
 #include <stdio.h>
 #include <sys/stat.h>
 #include <sys/types.h>
@@ skipping 549 matching lines @@
   EXPECT_EQ(-1, ki_open("/", O_WRONLY, 0));
   EXPECT_EQ(errno, EISDIR);
 }
 
 TEST_F(KernelProxyTest, OpenWithMode) {
   int fd = ki_open("/foo", O_CREAT | O_RDWR, 0723);
   ASSERT_GT(fd, -1);
 
   struct stat buf;
   EXPECT_EQ(0, ki_lstat("/foo", &buf));
-  EXPECT_EQ(0723, buf.st_mode & ~S_IFMT);
+  EXPECT_EQ(0723, buf.st_mode & 0777);
 }
 
 TEST_F(KernelProxyTest, CreateWronlyWithReadOnlyMode) {
   int fd = ki_open("/foo", O_CREAT | O_WRONLY, 0444);
   ASSERT_GT(fd, -1);
 }
 
 TEST_F(KernelProxyTest, UseAfterClose) {
   int fd = ki_open("/dummy", O_CREAT | O_WRONLY, 0777);
   ASSERT_GT(fd, -1);
@@ skipping 75 matching lines @@
   EXPECT_EQ(0, oldmask);
 
   int fd = ki_open("/foo", O_CREAT | O_RDONLY, 0666);
   ASSERT_GT(fd, -1);
   ki_close(fd);
 
   EXPECT_EQ(0, ki_mkdir("/dir", 0777));
 
   struct stat buf;
   EXPECT_EQ(0, ki_stat("/foo", &buf));
-  EXPECT_EQ(0444, buf.st_mode & ~S_IFMT);
+  EXPECT_EQ(0444, buf.st_mode & 0777);
 
   EXPECT_EQ(0, ki_stat("/dir", &buf));
-  EXPECT_EQ(0555, buf.st_mode & ~S_IFMT);
+  EXPECT_EQ(0555, buf.st_mode & 0777);
 
   EXPECT_EQ(0222, ki_umask(0));
 }
 
 namespace {
 
 StringMap_t g_string_map;
 bool g_fs_ioctl_called;
 int g_fs_dev;
 
@@ skipping 315 matching lines @@
 
   int fd = ki_open("/dummy", O_RDONLY, 0);
   EXPECT_NE(0, fd);
 
   char buf[20];
   EXPECT_EQ(-1, ki_read(fd, &buf[0], 20));
   // The Filesystem should be able to return whatever error it wants and have it
   // propagate through.
   EXPECT_EQ(1234, errno);
 }