[NaCl SDK] Enable linux host build for nacl_io and nacl_io_tests.

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>
 
@@ skipping 99 matching lines @@
   int garbage[buffer_size];
 
   MountMem* mount = (MountMem*)kp_.RootMount();
   ScopedMountNode root;
 
   ASSERT_EQ(0, mount->Open(Path("/"), O_RDONLY, &root));
   ASSERT_EQ(0, root->ChildCount());
 
   for (int file_num = 0; file_num < 4096; file_num++) {
     sprintf(filename, "/foo%i.tmp", file_num++);
-    FILE* f = fopen(filename, "w");
-    ASSERT_NE((FILE*)NULL, f);
+    int fd = ki_open(filename, O_WRONLY | O_CREAT);
+    ASSERT_GT(fd, -1);
     ASSERT_EQ(1, root->ChildCount());
-    ASSERT_EQ(buffer_size, fwrite(garbage, 1, buffer_size, f));
-    fclose(f);
-    ASSERT_EQ(0, remove(filename));
+    ASSERT_EQ(buffer_size, ki_write(fd, garbage, buffer_size));
+    ki_close(fd);
+    ASSERT_EQ(0, ki_remove(filename));
   }
   ASSERT_EQ(0, root->ChildCount());
 }
 
 static bool g_handler_called = false;
 static void sighandler(int) {
   g_handler_called = true;
 }
 
 TEST_F(KernelProxyTest, Sigaction) {
@@ skipping 215 matching lines @@
   len = ki_read(fd2, text, sizeof(text));
   if (len > 0)
     text[len] = 0;
   EXPECT_EQ(10, len);
   EXPECT_STREQ("HELLOWORLD", text);
 }
 
 TEST_F(KernelProxyTest, MemMountLseek) {
   int fd = ki_open("/foo", O_CREAT | O_RDWR);
   ASSERT_GT(fd, -1);
-  EXPECT_EQ(9, ki_write(fd, "Some text", 9));
+  ASSERT_EQ(9, ki_write(fd, "Some text", 9));
 
-  EXPECT_EQ(9, ki_lseek(fd, 0, SEEK_CUR));
-  EXPECT_EQ(9, ki_lseek(fd, 0, SEEK_END));
-  EXPECT_EQ(-1, ki_lseek(fd, -1, SEEK_SET));
-  EXPECT_EQ(EINVAL, errno);
+  ASSERT_EQ(9, ki_lseek(fd, 0, SEEK_CUR));
+  ASSERT_EQ(9, ki_lseek(fd, 0, SEEK_END));
+  ASSERT_EQ(-1, ki_lseek(fd, -1, SEEK_SET));
+  ASSERT_EQ(EINVAL, errno);
 
   // Seek past end of file.
-  EXPECT_EQ(13, ki_lseek(fd, 13, SEEK_SET));
+  ASSERT_EQ(13, ki_lseek(fd, 13, SEEK_SET));
   char buffer[4];
   memset(&buffer[0], 0xfe, 4);
-  EXPECT_EQ(9, ki_lseek(fd, -4, SEEK_END));
-  EXPECT_EQ(9, ki_lseek(fd, 0, SEEK_CUR));
-  EXPECT_EQ(4, ki_read(fd, &buffer[0], 4));
-  EXPECT_EQ(0, memcmp("\0\0\0\0", buffer, 4));
+  ASSERT_EQ(9, ki_lseek(fd, -4, SEEK_END));
+  ASSERT_EQ(9, ki_lseek(fd, 0, SEEK_CUR));
+  ASSERT_EQ(4, ki_read(fd, &buffer[0], 4));
+  ASSERT_EQ(0, memcmp("\0\0\0\0", buffer, 4));
 }
 
 TEST_F(KernelProxyTest, CloseTwice) {
   int fd = ki_open("/foo", O_CREAT | O_RDWR);
   ASSERT_GT(fd, -1);
 
   EXPECT_EQ(9, ki_write(fd, "Some text", 9));
 
   int fd2 = ki_dup(fd);
   ASSERT_GT(fd2, -1);
@@ skipping 294 matching lines @@
 
   int fd = ki_open("/dummy", O_RDONLY);
   EXPECT_NE(0, fd);
 
   char buf[20];
   EXPECT_EQ(-1, ki_read(fd, &buf[0], 20));
   // The Mount should be able to return whatever error it wants and have it
   // propagate through.
   EXPECT_EQ(1234, errno);
 }