vfs_stat
error = vfs_stat(name, &stat);
int error = vfs_stat(filename, &stat);
int error = vfs_stat(filename, &stat);
int ret = vfs_stat(filename, &stat);
error = vfs_stat(filename, &stat);
error = vfs_stat(filename, &stat);
int error = vfs_stat(filename, &stat);
error = vfs_stat(filename, &stat);