compiler-rt/test/msan/Linux/name_to_handle_at.cpp

   1 // RUN: %clangxx_msan -std=c++11 -O0 -g %s -o %t && %run %t
   2
   3 #include <assert.h>
   4 #include <fcntl.h>
   5 #include <sanitizer/msan_interface.h>
   6 #include <stdlib.h>
   7 #include <sys/stat.h>
   8 #include <sys/types.h>
   9 #include <unistd.h>
  10
  11 int main(void) {
  12   struct file_handle *handle = reinterpret_cast<struct file_handle *>(
  13       malloc(sizeof(*handle) + MAX_HANDLE_SZ));
  14   handle->handle_bytes = MAX_HANDLE_SZ;
  15
  16   int mount_id;
  17   int res = name_to_handle_at(AT_FDCWD, "/dev/null", handle, &mount_id, 0);
  18   assert(!res);
  19   __msan_check_mem_is_initialized(&mount_id, sizeof(mount_id));
  20   __msan_check_mem_is_initialized(&handle->handle_bytes,
  21                                   sizeof(handle->handle_bytes));
  22   __msan_check_mem_is_initialized(&handle->handle_type,
  23                                   sizeof(handle->handle_type));
  24   __msan_check_mem_is_initialized(&handle->f_handle, handle->handle_bytes);
  25
  26   free(handle);
  27   return 0;
  28 }