[NaCl SDK] nacl_io: Remove Node::Access method.

native_client_sdk/src/libraries/nacl_io/kernel_proxy.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 "nacl_io/kernel_proxy.h"
 
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
@@ skipping 825 matching lines @@
   error = handle->VFcntl(request, &rtn, args);
   if (error) {
     errno = error;
     return -1;
   }
 
   return rtn;
 }
 
 int KernelProxy::access(const char* path, int amode) {
-  ScopedFilesystem fs;
-  Path rel;
-
-  Error error = AcquireFsAndRelPath(path, &fs, &rel);
-  if (error) {
-    errno = error;
+  struct stat buf;
+  int rtn = stat(path, &buf);
+  if (rtn != 0) {
+    errno = rtn;

[binji, 2014/09/08 18:48:26]

stat above calls KernelProxy::stat, which already set errno. This should be
just:

return rtn;

[Sam Clegg, 2014/09/09 19:58:30]

Done.

     return -1;
   }
 
-  error = fs->Access(rel, amode);
-  if (error) {
-    errno = error;
+  if (((amode & R_OK) && !(buf.st_mode & S_IREAD)) ||
+      ((amode & W_OK) && !(buf.st_mode & S_IWRITE)) ||
+      ((amode & X_OK) && !(buf.st_mode & S_IEXEC))) {
+    errno = EACCES;
     return -1;
   }
+
   return 0;
 }
 
 int KernelProxy::readlink(const char* path, char* buf, size_t count) {
   LOG_TRACE("readlink is not implemented.");
   errno = EINVAL;
   return -1;
 }
 
 int KernelProxy::utimes(const char* filename, const struct timeval times[2]) {
@@ skipping 849 matching lines @@
     errno = ENOTSOCK;
     return -1;
   }
 
   return 0;
 }
 
 #endif  // PROVIDES_SOCKET_API
 
 }  // namespace_nacl_io