sbin/fsck_msdosfs/dir.c

445 	struct dosDirEntry dirent, *d;
604 			memset(&dirent, 0, sizeof dirent);
610 			dirent.flags = p[11];
616 				dirent.name[j] = p[j];
617 			dirent.name[8] = '\0';
618 			for (k = 7; k >= 0 && dirent.name[k] == ' '; k--)
619 				dirent.name[k] = '\0';
620 			if (dirent.name[k] != '\0')
622 			if (dirent.name[0] == SLOT_E5)
623 				dirent.name[0] = 0xe5;
625 			if (dirent.flags & ATTR_VOLUME) {
638 				dirent.name[k++] = '.';
640 				dirent.name[k++] = p[j+8];
641 			dirent.name[k] = '\0';
642 			for (k--; k >= 0 && dirent.name[k] == ' '; k--)
643 				dirent.name[k] = '\0';
652 			dirent.head = p[26] | (p[27] << 8);
654 				dirent.head |= (p[20] << 16) | (p[21] << 24);
655 			dirent.size = p[28] | (p[29] << 8) | (p[30] << 16) | (p[31] << 24);
657 				strlcpy(dirent.lname, longName,
658 				    sizeof(dirent.lname));
663 			dirent.parent = dir;
664 			dirent.next = dir->child;
670 						    fullpath(&dirent), 0);
683 			if (dirent.size == 0 && !(dirent.flags & ATTR_DIRECTORY)) {
684 				if (dirent.head != 0) {
686 					      fullpath(&dirent));
691 						clearchain(boot, fat, dirent.head);
692 						dirent.head = 0;
697 			} else if (dirent.head == 0
698 				   && !strcmp(dirent.name, "..")
704 			} else if (dirent.head < CLUST_FIRST
705 				   || dirent.head >= boot->NumClusters
706 				   || fat[dirent.head].next == CLUST_FREE
707 				   || (fat[dirent.head].next >= CLUST_RSRVD
708 				       && fat[dirent.head].next < CLUST_EOFS)
709 				   || fat[dirent.head].head != dirent.head) {
710 				if (dirent.head == 0)
712 					      fullpath(&dirent));
713 				else if (dirent.head < CLUST_FIRST
714 					 || dirent.head >= boot->NumClusters)
716 					      fullpath(&dirent),
717 					      dirent.head);
718 				else if (fat[dirent.head].next == CLUST_FREE)
720 					      fullpath(&dirent));
721 				else if (fat[dirent.head].next >= CLUST_RSRVD)
723 					      fullpath(&dirent),
724 					      rsrvdcltype(fat[dirent.head].next));
727 					      fullpath(&dirent));
728 				if (dirent.flags & ATTR_DIRECTORY) {
741 						dirent.size = 0;
748 			if (dirent.head >= CLUST_FIRST && dirent.head < boot->NumClusters)
749 				fat[dirent.head].flags |= FAT_USED;
751 			if (dirent.flags & ATTR_DIRECTORY) {
757 				if (dirent.size) {
759 					      fullpath(&dirent));
762 						dirent.size = 0;
770 				if (strcmp(dirent.name, ".") == 0) {
771 					if (dirent.head != dir->head) {
775 							dirent.head = dir->head;
776 							p[26] = (u_char)dirent.head;
777 							p[27] = (u_char)(dirent.head >> 8);
779 								p[20] = (u_char)(dirent.head >> 16);
780 								p[21] = (u_char)(dirent.head >> 24);
788 				if (strcmp(dirent.name, "..") == 0) {
791 							if (dirent.head) {
795 									dirent.head = 0;
803 						} else if (dirent.head != dir->parent->head) {
807 								dirent.head = dir->parent->head;
808 								p[26] = (u_char)dirent.head;
809 								p[27] = (u_char)(dirent.head >> 8);
811 									p[20] = (u_char)(dirent.head >> 16);
812 									p[21] = (u_char)(dirent.head >> 24);
827 				memcpy(d, &dirent, sizeof(struct dosDirEntry));
840 				mod |= k = checksize(boot, fat, p, &dirent);