fs/cd9660/cd9660_vnops.c

72 static int iso_uiodir(struct isoreaddir *idp, struct dirent *dp, off_t off);
73 static int iso_shipdir(struct isoreaddir *idp);
375 iso_uiodir(idp,dp,off)
376 	struct isoreaddir *idp;
385 	if (idp->uio->uio_resid < dp->d_reclen) {
386 		idp->eofflag = 0;
390 	if (idp->cookies) {
391 		if (idp->ncookies <= 0) {
392 			idp->eofflag = 0;
396 		*idp->cookies++ = off;
397 		--idp->ncookies;
400 	if ((error = uiomove(dp, dp->d_reclen, idp->uio)) != 0)
402 	idp->uio_off = off;
407 iso_shipdir(idp)
408 	struct isoreaddir *idp;
415 	cl = idp->current.d_namlen;
416 	cname = idp->current.d_name;
423 	dp = &idp->saveent;
426 		dp = &idp->assocent;
433 			if (idp->assocent.d_namlen) {
434 				if ((error = iso_uiodir(idp,&idp->assocent,idp->assocoff)) != 0)
436 				idp->assocent.d_namlen = 0;
438 			if (idp->saveent.d_namlen) {
439 				if ((error = iso_uiodir(idp,&idp->saveent,idp->saveoff)) != 0)
441 				idp->saveent.d_namlen = 0;
445 	idp->current.d_reclen = GENERIC_DIRSIZ(&idp->current);
447 		idp->assocoff = idp->curroff;
448 		bcopy(&idp->current,&idp->assocent,idp->current.d_reclen);
450 		idp->saveoff = idp->curroff;
451 		bcopy(&idp->current,&idp->saveent,idp->current.d_reclen);
471 	struct isoreaddir *idp;
490 	idp = malloc(sizeof(*idp), M_TEMP, M_WAITOK);
491 	idp->saveent.d_namlen = idp->assocent.d_namlen = 0;
496 	idp->saveent.d_type = idp->assocent.d_type = idp->current.d_type =
498 	idp->uio = uio;
500 		idp->cookies = NULL;
508 		idp->cookies = cookies;
509 		idp->ncookies = ncookies;
511 	idp->eofflag = 1;
512 	idp->curroff = uio->uio_offset;
513 	idp->uio_off = uio->uio_offset;
515 	if ((entryoffsetinblock = idp->curroff & bmask) &&
516 	    (error = cd9660_blkatoff(vdp, (off_t)idp->curroff, NULL, &bp))) {
517 		free(idp, M_TEMP);
522 	while (idp->curroff < endsearch) {
528 		if ((idp->curroff & bmask) == 0) {
532 			    cd9660_blkatoff(vdp, (off_t)idp->curroff, NULL, &bp)) != 0)
545 			idp->curroff =
546 			    (idp->curroff & ~bmask) + imp->logical_block_size;
562 		idp->current.d_namlen = isonum_711(ep->name_len);
564 		if (reclen < ISO_DIRECTORY_RECORD_SIZE + idp->current.d_namlen) {
571 			idp->current.d_fileno = isodirino(ep, imp);
573 			idp->current.d_fileno = dbtob(bp->b_blkno) +
576 		idp->curroff += reclen;
580 			cd9660_rrip_getname(ep,idp->current.d_name, &namelen,
581 					   &idp->current.d_fileno,imp);
582 			idp->current.d_namlen = (u_char)namelen;
583 			if (idp->current.d_namlen)
584 				error = iso_uiodir(idp,&idp->current,idp->curroff);
587 			strcpy(idp->current.d_name,"..");
588 			if (idp->current.d_namlen == 1 && ep->name[0] == 0) {
589 				idp->current.d_namlen = 1;
590 				error = iso_uiodir(idp,&idp->current,idp->curroff);
591 			} else if (idp->current.d_namlen == 1 && ep->name[0] == 1) {
592 				idp->current.d_namlen = 2;
593 				error = iso_uiodir(idp,&idp->current,idp->curroff);
595 				isofntrans(ep->name,idp->current.d_namlen,
596 					   idp->current.d_name, &namelen,
602 				idp->current.d_namlen = (u_char)namelen;
604 					error = iso_shipdir(idp);
606 					error = iso_uiodir(idp,&idp->current,idp->curroff);
616 		idp->current.d_namlen = 0;
617 		error = iso_shipdir(idp);
629 			*ap->a_ncookies = ncookies - idp->ncookies;
637 	uio->uio_offset = idp->uio_off;
638 	*ap->a_eofflag = idp->eofflag;
640 	free(idp, M_TEMP);