Provides some of the missing POSIX file syscalls

tests/syscalls/syscalls.cc

 /*
  * Copyright (c) 2011 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /*
  * NaCl tests for simple syscalls
  */
 
@@ skipping 85 matching lines @@
 }
 
 bool test_getcwd() {
   return passed("test_getcwd", "all");
 }
 
 bool test_unlink(const char *test_file) {
   return passed("test_unlink", "all");
 }
 
+bool test_truncate(const char *test_file) {
+  return passed("test_truncate", "all");
+}
+
+bool test_symlink_readlink(const char *test_file) {
+  return passed("test_symlink_readlink", "all");
+}
+
+bool test_chmod_access(const char *test_file) {
+  return passed("test_chmod_access", "all");
+}
+
+bool test_rename(const char *test_file) {
+  return passed("test_rename", "all");
+}
+
+bool test_utimes(const char *test_file) {
+  return passed("test_utimes", "all");
+}
+
 #else
 
 // Simple test that chdir returns zero for '.'.  chdir gets more
 // significant testing as part of the getcwd test.
 bool test_chdir() {
   int rtn = chdir(".");
   ASSERT_EQ_MSG(rtn, 0, "chdir() failed");
 
   return passed("test_chdir", "all");
 }
@@ skipping 88 matching lines @@
 
   rtn = stat(buffer, &buf);
   ASSERT_NE_MSG(rtn, 0, "unlink() failed to remove file");
 
   rtn = unlink(buffer);
   ASSERT_NE_MSG(rtn, 0, "unlink() failed to fail");
 
   return passed("test_unlink", "all");
 }
 
+bool test_truncate(const char *test_file) {
+  char buffer[PATH_MAX];
+  struct stat stbuf;
+  int retval;
+  snprintf(buffer, PATH_MAX, "%s.tmp", test_file);
+  buffer[PATH_MAX - 1] = '\0';
+
+  int fd = open(buffer, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
+  ASSERT_MSG(fd >= 0, "open() failed");
+
+  retval = close(fd);
+  ASSERT_EQ_MSG(retval, 0, "close() failed");
+
+  retval = truncate(buffer, 4096);
+  ASSERT_EQ_MSG(retval, 0, "truncate() failed");
+
+  retval = stat(buffer, &stbuf);
+  ASSERT_EQ_MSG(retval, 0, "stat() failed");
+
+  ASSERT_EQ(stbuf.st_size, 4096);
+
+  return passed("test_truncate", "all");
+}
+
+bool test_symlink_readlink(const char *test_file) {
+  char oldpath[PATH_MAX];
+  char newpath[PATH_MAX];
+  char buffer[PATH_MAX];
+  int retval;
+
+  snprintf(oldpath, PATH_MAX, "%s.tmp", test_file);
+  buffer[PATH_MAX - 1] = '\0';
+
+  int fd = open(oldpath, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
+  ASSERT_MSG(fd >= 0, "open() failed");
+
+  retval = close(fd);
+  ASSERT_EQ_MSG(retval, 0, "close() failed");
+
+  snprintf(newpath, PATH_MAX, "%s_link.tmp", test_file);
+  newpath[PATH_MAX - 1] = '\0';
+
+  retval = symlink(oldpath, newpath);
+  ASSERT_EQ_MSG(retval, 0, "symlink() failed");
+
+  retval = readlink(newpath, buffer, sizeof buffer);
+  ASSERT_EQ_MSG(retval, 0, "readlink() failed");
+  ASSERT_EQ(strcmp(oldpath, buffer), 0);
+
+  return passed("test_symlink_readlink", "all");
+}
+
+bool test_chmod_access(const char *test_file) {
+  return passed("test_chmod_access", "all");
+}
+
+bool test_rename(const char *test_file) {
+  return passed("test_rename", "all");
+}
+
+bool test_utimes(const char *test_file) {
+  return passed("test_utimes", "all");
+}
+
 #endif  // !TESTS_USE_IRT
 
 // open() returns the new file descriptor, or -1 if an error occurred
 bool test_open(const char *test_file) {
   int fd;
   const char *testname = "test_open";
 
   // file OK, flag OK
   fd = open(test_file, O_RDONLY);
   if (fd == -1)
@@ skipping 305 matching lines @@
   bool ret = true;
   // The order of executing these tests matters!
   ret &= test1();
   ret &= test2();
   ret &= test_open(test_file);
   ret &= test_close(test_file);
   ret &= test_read(test_file);
   ret &= test_write(test_file);
   ret &= test_lseek(test_file);
   ret &= test_unlink(test_file);
+  ret &= test_truncate(test_file);
+  ret &= test_symlink_readlink(test_file);
+  ret &= test_chmod_access(test_file);
+  ret &= test_rename(test_file);
+  ret &= test_utimes(test_file);
   ret &= test_chdir();
   ret &= test_getcwd();
   ret &= test_mkdir_rmdir(test_file);
   return ret;
 }
 
 /*
  * main entry point.
  *
  * run all tests and call system exit with appropriate value
@@ skipping 12 matching lines @@
   passed = testSuite(argv[1]);
 
   if (passed) {
     printf("All tests PASSED\n");
     exit(0);
   } else {
     printf("One or more tests FAILED\n");
     exit(-1);
   }
 }