163 	struct package *pkg;  in pkgfs_init()  local
166 	pkg = NULL;  in pkgfs_init()
179 	error = new_package(fd, &pkg);  in pkgfs_init()
185 	if (pkg == NULL)  in pkgfs_init()
188 	pkg->pkg_chain = package;  in pkgfs_init()
189 	package = pkg;  in pkgfs_init()
421 get_byte(struct package *pkg, off_t *op)  in get_byte()  argument
425 	if (pkg->pkg_zs.avail_in == 0) {  in get_byte()
426 		c = read(pkg->pkg_fd, pkg->pkg_buf, PKG_BUFSIZE);  in get_byte()
429 		pkg->pkg_zs.avail_in = c;  in get_byte()
430 		pkg->pkg_zs.next_in = pkg->pkg_buf;  in get_byte()
433 	c = *pkg->pkg_zs.next_in;  in get_byte()
434 	pkg->pkg_zs.next_in++;  in get_byte()
435 	pkg->pkg_zs.avail_in--;  in get_byte()
441 get_zipped(struct package *pkg, void *buf, size_t bufsz)  in get_zipped()  argument
445 	pkg->pkg_zs.next_out = buf;  in get_zipped()
446 	pkg->pkg_zs.avail_out = bufsz;  in get_zipped()
448 	while (pkg->pkg_zs.avail_out) {  in get_zipped()
449 		if (pkg->pkg_zs.avail_in == 0) {  in get_zipped()
450 			c = read(pkg->pkg_fd, pkg->pkg_buf, PKG_BUFSIZE);  in get_zipped()
455 			pkg->pkg_zs.avail_in = c;  in get_zipped()
456 			pkg->pkg_zs.next_in = pkg->pkg_buf;  in get_zipped()
459 		c = inflate(&pkg->pkg_zs, Z_SYNC_FLUSH);  in get_zipped()
466 	pkg->pkg_ofs += bufsz;  in get_zipped()
473 	struct package *pkg;  in cache_data()  local
482 	pkg = tf->tf_pkg;  in cache_data()
483 	if (pkg == NULL) {  in cache_data()
489 	if (tf->tf_ofs != pkg->pkg_ofs) {  in cache_data()
513 	return (get_zipped(pkg, tf->tf_cache, sz));  in cache_data()
617 	struct package *pkg;  in new_package()  local
621 	pkg = malloc(sizeof(*pkg));  in new_package()
622 	if (pkg == NULL)  in new_package()
625 	bzero(pkg, sizeof(*pkg));  in new_package()
626 	pkg->pkg_fd = fd;  in new_package()
635 	if (get_byte(pkg, &ofs) != 0x1f || get_byte(pkg, &ofs) != 0x8b)  in new_package()
638 	if (get_byte(pkg, &ofs) != Z_DEFLATED)  in new_package()
641 	flags = get_byte(pkg, &ofs);  in new_package()
647 		if (get_byte(pkg, &ofs) == -1)  in new_package()
653 		i = (get_byte(pkg, &ofs) & 0xff) |  in new_package()
654 		    ((get_byte(pkg, &ofs) << 8) & 0xff);  in new_package()
656 			if (get_byte(pkg, &ofs) == -1)  in new_package()
664 			i = get_byte(pkg, &ofs);  in new_package()
673 			i = get_byte(pkg, &ofs);  in new_package()
684 		if (get_byte(pkg, &ofs) == -1)  in new_package()
686 		if (get_byte(pkg, &ofs) == -1)  in new_package()
693 	error = inflateInit2(&pkg->pkg_zs, -15);  in new_package()
697 	*pp = pkg;  in new_package()
701 	free(pkg);  in new_package()
706 scan_tarfile(struct package *pkg, struct tarfile *last)  in scan_tarfile()  argument
713 	cur = (last != NULL) ? last->tf_next : pkg->pkg_first;  in scan_tarfile()
716 		    pkg->pkg_ofs;  in scan_tarfile()
720 		if (ofs < pkg->pkg_ofs) {  in scan_tarfile()
725 		if (ofs != pkg->pkg_ofs) {  in scan_tarfile()
726 			if (last != NULL && pkg->pkg_ofs == last->tf_ofs) {  in scan_tarfile()
730 				sz = ofs - pkg->pkg_ofs;  in scan_tarfile()
734 					if (get_zipped(pkg, buf, sz) == -1)  in scan_tarfile()
736 					sz = ofs - pkg->pkg_ofs;  in scan_tarfile()
745 		cur->tf_pkg = pkg;  in scan_tarfile()
748 			if (get_zipped(pkg, &cur->tf_hdr,  in scan_tarfile()
764 			cur->tf_ofs = pkg->pkg_ofs;  in scan_tarfile()
776 			while (pkg->pkg_ofs < ofs) {  in scan_tarfile()
777 				if (get_zipped(pkg, buf, sizeof(buf)) == -1) {  in scan_tarfile()
787 			pkg->pkg_first = cur;  in scan_tarfile()
788 		pkg->pkg_last = cur;  in scan_tarfile()