CHR_WR_3
hd->h_magic[1] = CHR_WR_3(MAGIC);
hd->h_dev[1] = CHR_WR_3(arcn->sb.st_dev);
hd->h_ino[1] = CHR_WR_3(arcn->sb.st_ino);
hd->h_mode[1] = CHR_WR_3(arcn->sb.st_mode);
hd->h_uid[1] = CHR_WR_3(arcn->sb.st_uid);
hd->h_gid[1] = CHR_WR_3(arcn->sb.st_gid);
hd->h_nlink[1] = CHR_WR_3(arcn->sb.st_nlink);
hd->h_rdev[1] = CHR_WR_3(arcn->sb.st_rdev);
hd->h_mtime_2[1] = CHR_WR_3(arcn->sb.st_mtime);
hd->h_namesize[1] = CHR_WR_3(nsz);
hd->h_filesize_2[1] = CHR_WR_3(arcn->sb.st_size);
hd->h_filesize_2[1] = CHR_WR_3(arcn->ln_nlen);