FILEBITS
file_mode = arcn->sb.st_mode & FILEBITS;
((sb.st_mode & FILEBITS) | S_IRWXU));
#define ABITS (FILEBITS | SETBITS)
set_pmode(name, ((sb.st_mode & FILEBITS) | S_IRWXU));
file_mode = arcn->sb.st_mode & FILEBITS;