131 #define stclus(sz, de)  ((sz) != 32 ? cv2((de)->clus) :          \  argument
132                          ((u_int)cv2((de)->dex.h_clus) << 16) |  \
133 			 cv2((de)->clus))
237     DOS_DE *de;  in dos_open()  local
251     if ((err = namede(fs, path, &de))) {  in dos_open()
256     clus = stclus(fs->fatsz, de);  in dos_open()
257     size = cv4(de->size);  in dos_open()
259     if ((!(de->attr & FA_DIR) && (!clus != !size)) ||  in dos_open()
260 	((de->attr & FA_DIR) && size) ||  in dos_open()
273     f->de = *de;  in dos_open()
296     if ((size = fsize(f->fs, &f->de)) == -1)  in dos_read()
301     if ((clus = stclus(f->fs->fatsz, &f->de)))  in dos_read()
347     size = cv4(f->de.size);  in dos_seek()
396     sb->st_mode = f->de.attr & FA_DIR ? S_IFDIR | 0555 : S_IFREG | 0444;  in dos_stat()
400     if ((sb->st_size = fsize(f->fs, &f->de)) == -1)  in dos_stat()
441 	if (dd.de.name[0] == 0)  in dos_readdir()
445 	if (dd.de.name[0] == 0xe5)  in dos_readdir()
449 	if (dd.de.attr & FA_LABEL) {  in dos_readdir()
454 	    if ((dd.de.attr & FA_MASK) == FA_XDE) {  in dos_readdir()
476 		x = dos_checksum(dd.de.name, dd.de.ext);  in dos_readdir()
480 		cp_sfn(fn, &dd.de);  in dos_readdir()
487     d->d_fileno = (dd.de.clus[1] << 8) + dd.de.clus[0];  in dos_readdir()
489     d->d_type = (dd.de.attr & FA_DIR) ? DT_DIR : DT_REG;  in dos_readdir()
550     DOS_DE *de;  in namede()  local
556     de = &fs->root;  in namede()
569         if (!(de->attr & FA_DIR))  in namede()
571         if ((err = lookup(fs, stclus(fs->fatsz, de), name, &de)))  in namede()
574     *dep = de;  in namede()
612                 if (!*dir[ent].de.name)  in lookup()
614                 if (*dir[ent].de.name != 0xe5) {  in lookup()
615                     if ((dir[ent].de.attr & FA_MASK) == FA_XDE) {  in lookup()
629                     } else if (!(dir[ent].de.attr & FA_LABEL)) {  in lookup()
631 			    x = dos_checksum(dir[ent].de.name, dir[ent].de.ext);  in lookup()
636                             cp_sfn(sfn, &dir[ent].de);  in lookup()
640                             *dep = &dir[ent].de;  in lookup()
692 cp_sfn(u_char *sfn, DOS_DE *de)  in cp_sfn()  argument
698     if (*de->name != ' ') {  in cp_sfn()
699         for (j = 7; de->name[j] == ' '; j--);  in cp_sfn()
701             *p++ = de->name[i];  in cp_sfn()
702         if (*de->ext != ' ') {  in cp_sfn()
704             for (j = 2; de->ext[j] == ' '; j--);  in cp_sfn()
706                 *p++ = de->ext[i];  in cp_sfn()
718 fsize(DOS_FS *fs, DOS_DE *de)  in fsize()  argument
724    if (!(size = cv4(de->size)) && de->attr & FA_DIR) {  in fsize()
725       if (!(c = cv2(de->clus)))  in fsize()