157 	struct package *pkg;  in pkgfs_init()  local
160 	pkg = NULL;  in pkgfs_init()
176 	error = new_package(fd, &pkg);  in pkgfs_init()
182 	if (pkg == NULL)  in pkgfs_init()
185 	pkg->pkg_chain = package;  in pkgfs_init()
186 	package = pkg;  in pkgfs_init()
449 get_byte(struct package *pkg, off_t *op)  in get_byte()  argument
453 	if (pkg->pkg_zs.avail_in == 0) {  in get_byte()
454 		c = read(pkg->pkg_fd, pkg->pkg_buf, PKG_BUFSIZE);  in get_byte()
457 		pkg->pkg_zs.avail_in = c;  in get_byte()
458 		pkg->pkg_zs.next_in = pkg->pkg_buf;  in get_byte()
461 	c = *pkg->pkg_zs.next_in;  in get_byte()
462 	pkg->pkg_zs.next_in++;  in get_byte()
463 	pkg->pkg_zs.avail_in--;  in get_byte()
469 get_zipped(struct package *pkg, void *buf, size_t bufsz)  in get_zipped()  argument
473 	pkg->pkg_zs.next_out = buf;  in get_zipped()
474 	pkg->pkg_zs.avail_out = bufsz;  in get_zipped()
476 	while (pkg->pkg_zs.avail_out) {  in get_zipped()
477 		if (pkg->pkg_zs.avail_in == 0) {  in get_zipped()
478 			c = read(pkg->pkg_fd, pkg->pkg_buf, PKG_BUFSIZE);  in get_zipped()
483 			pkg->pkg_zs.avail_in = c;  in get_zipped()
484 			pkg->pkg_zs.next_in = pkg->pkg_buf;  in get_zipped()
487 		c = inflate(&pkg->pkg_zs, Z_SYNC_FLUSH);  in get_zipped()
494 	pkg->pkg_ofs += bufsz;  in get_zipped()
513 	struct package *pkg;  in cache_data()  local
523 	pkg = tf->tf_pkg;  in cache_data()
524 	if (pkg == NULL) {  in cache_data()
537 	if (tf->tf_ofs != pkg->pkg_ofs) {  in cache_data()
563 	return (get_zipped(pkg, tf->tf_cache, sz));  in cache_data()
667 	struct package *pkg;  in new_package()  local
671 	pkg = malloc(sizeof(*pkg));  in new_package()
672 	if (pkg == NULL)  in new_package()
675 	bzero(pkg, sizeof(*pkg));  in new_package()
676 	pkg->pkg_fd = fd;  in new_package()
685 	if (get_byte(pkg, &ofs) != 0x1f || get_byte(pkg, &ofs) != 0x8b)  in new_package()
688 	if (get_byte(pkg, &ofs) != Z_DEFLATED)  in new_package()
691 	flags = get_byte(pkg, &ofs);  in new_package()
697 		if (get_byte(pkg, &ofs) == -1)  in new_package()
703 		i = (get_byte(pkg, &ofs) & 0xff) |  in new_package()
704 		    ((get_byte(pkg, &ofs) << 8) & 0xff);  in new_package()
706 			if (get_byte(pkg, &ofs) == -1)  in new_package()
714 			i = get_byte(pkg, &ofs);  in new_package()
723 			i = get_byte(pkg, &ofs);  in new_package()
734 		if (get_byte(pkg, &ofs) == -1)  in new_package()
736 		if (get_byte(pkg, &ofs) == -1)  in new_package()
743 	error = inflateInit2(&pkg->pkg_zs, -15);  in new_package()
747 	*pp = pkg;  in new_package()
751 	free(pkg);  in new_package()
756 scan_tarfile(struct package *pkg, struct tarfile *last)  in scan_tarfile()  argument
763 	cur = (last != NULL) ? last->tf_next : pkg->pkg_first;  in scan_tarfile()
766 		    pkg->pkg_ofs;  in scan_tarfile()
770 		if (ofs < pkg->pkg_ofs) {  in scan_tarfile()
775 		if (ofs != pkg->pkg_ofs) {  in scan_tarfile()
776 			if (last != NULL && pkg->pkg_ofs == last->tf_ofs) {  in scan_tarfile()
780 				sz = ofs - pkg->pkg_ofs;  in scan_tarfile()
784 					if (get_zipped(pkg, buf, sz) == -1)  in scan_tarfile()
786 					sz = ofs - pkg->pkg_ofs;  in scan_tarfile()
795 		cur->tf_pkg = pkg;  in scan_tarfile()
798 			if (get_zipped(pkg, &cur->tf_hdr,  in scan_tarfile()
814 			cur->tf_ofs = pkg->pkg_ofs;  in scan_tarfile()
826 			while (pkg->pkg_ofs < ofs) {  in scan_tarfile()
827 				if (get_zipped(pkg, buf, sizeof(buf)) == -1) {  in scan_tarfile()
837 			pkg->pkg_first = cur;  in scan_tarfile()
838 		pkg->pkg_last = cur;  in scan_tarfile()