[NaCl SDK] nacl_io: Add chmod/fchmod

native_client_sdk/src/libraries/nacl_io/fusefs/fuse_fs.cc

 // Copyright 2013 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/fusefs/fuse_fs.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <string.h>
 
@@ skipping 243 matching lines @@
     return ENOSYS;
   }
 
   result = fuse_ops_->utimens(path_.c_str(), times);
   if (result < 0)
     return -result;
 
   return result;
 }
 
+Error FuseFsNode::Fchmod(mode_t mode) {
+  int result;
+  if (!fuse_ops_->chmod) {
+    LOG_TRACE("fuse_ops_->chmod is NULL.");
+    return ENOSYS;
+  }
+
+  result = fuse_ops_->chmod(path_.c_str(), mode);
+  if (result < 0)
+    return -result;
+
+  return result;
+}
+
 Error FuseFsNode::VIoctl(int request, va_list args) {
   LOG_ERROR("Ioctl not implemented for fusefs.");
   return ENOSYS;
 }
 
 Error FuseFsNode::Tcflush(int queue_selector) {
   LOG_ERROR("Tcflush not implemented for fusefs.");
   return ENOSYS;
 }
 
@@ skipping 202 matching lines @@
   } else {
     fill_info->getdents->AddDirent(ino, name, strlen(name));
     fill_info->num_bytes -= sizeof(dirent);
     // According to the docs, we can never return 1 (buffer full) when the
     // offset is zero (the user is probably ignoring the result anyway).
     return 0;
   }
 }
 
 }  // namespace nacl_io