Open dictionary files always using O_RDONLY.
We never directly write to opened and mmapped files.
Bug: 11391620
Change-Id: Ic52fbe6018b8b3c1b6ca687461f29185809217c2
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/mmapped_buffer.cpp b/native/jni/src/suggest/policyimpl/dictionary/utils/mmapped_buffer.cpp
index 71f8632..28af973 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/mmapped_buffer.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/mmapped_buffer.cpp
@@ -30,8 +30,7 @@
/* static */ MmappedBuffer::MmappedBufferPtr MmappedBuffer::openBuffer(
const char *const path, const int bufferOffset, const int bufferSize,
const bool isUpdatable) {
- const int openMode = isUpdatable ? O_RDWR : O_RDONLY;
- const int mmapFd = open(path, openMode);
+ const int mmapFd = open(path, O_RDONLY);
if (mmapFd < 0) {
AKLOGE("DICT: Can't open the source. path=%s errno=%d", path, errno);
return MmappedBufferPtr(0);