49 	.fs_name = "pkg",
162 	struct package *pkg;  in pkgfs_init()  local
165 	pkg = NULL;  in pkgfs_init()
178 	error = new_package(fd, &pkg);  in pkgfs_init()
184 	if (pkg == NULL)  in pkgfs_init()
187 	pkg->pkg_chain = package;  in pkgfs_init()
188 	package = pkg;  in pkgfs_init()
218 	 * at the first filename that has the .pkg extension. This is  in pkg_open_follow()
446 get_byte(struct package *pkg, off_t *op)  in get_byte()  argument
450 	if (pkg->pkg_zs.avail_in == 0) {  in get_byte()
451 		c = read(pkg->pkg_fd, pkg->pkg_buf, PKG_BUFSIZE);  in get_byte()
454 		pkg->pkg_zs.avail_in = c;  in get_byte()
455 		pkg->pkg_zs.next_in = pkg->pkg_buf;  in get_byte()
458 	c = *pkg->pkg_zs.next_in;  in get_byte()
459 	pkg->pkg_zs.next_in++;  in get_byte()
460 	pkg->pkg_zs.avail_in--;  in get_byte()
466 get_zipped(struct package *pkg, void *buf, size_t bufsz)  in get_zipped()  argument
470 	pkg->pkg_zs.next_out = buf;  in get_zipped()
471 	pkg->pkg_zs.avail_out = bufsz;  in get_zipped()
473 	while (pkg->pkg_zs.avail_out) {  in get_zipped()
474 		if (pkg->pkg_zs.avail_in == 0) {  in get_zipped()
475 			c = read(pkg->pkg_fd, pkg->pkg_buf, PKG_BUFSIZE);  in get_zipped()
480 			pkg->pkg_zs.avail_in = c;  in get_zipped()
481 			pkg->pkg_zs.next_in = pkg->pkg_buf;  in get_zipped()
484 		c = inflate(&pkg->pkg_zs, Z_SYNC_FLUSH);  in get_zipped()
491 	pkg->pkg_ofs += bufsz;  in get_zipped()
510 	struct package *pkg;  in cache_data()  local
519 	pkg = tf->tf_pkg;  in cache_data()
520 	if (pkg == NULL) {  in cache_data()
532 	if (tf->tf_ofs != pkg->pkg_ofs) {  in cache_data()
557 	return (get_zipped(pkg, tf->tf_cache, sz));  in cache_data()
636 	 * Technically, GNU pkg considers a field to be in base-256  in pkg_atol()
661 	struct package *pkg;  in new_package()  local
665 	pkg = malloc(sizeof(*pkg));  in new_package()
666 	if (pkg == NULL)  in new_package()
669 	bzero(pkg, sizeof(*pkg));  in new_package()
670 	pkg->pkg_fd = fd;  in new_package()
679 	if (get_byte(pkg, &ofs) != 0x1f || get_byte(pkg, &ofs) != 0x8b)  in new_package()
682 	if (get_byte(pkg, &ofs) != Z_DEFLATED)  in new_package()
685 	flags = get_byte(pkg, &ofs);  in new_package()
691 		if (get_byte(pkg, &ofs) == -1)  in new_package()
697 		i = (get_byte(pkg, &ofs) & 0xff) |  in new_package()
698 		    ((get_byte(pkg, &ofs) << 8) & 0xff);  in new_package()
700 			if (get_byte(pkg, &ofs) == -1)  in new_package()
708 			i = get_byte(pkg, &ofs);  in new_package()
717 			i = get_byte(pkg, &ofs);  in new_package()
728 		if (get_byte(pkg, &ofs) == -1)  in new_package()
730 		if (get_byte(pkg, &ofs) == -1)  in new_package()
737 	error = inflateInit2(&pkg->pkg_zs, -15);  in new_package()
741 	*pp = pkg;  in new_package()
745 	free(pkg);  in new_package()
750 scan_tarfile(struct package *pkg, struct tarfile *last)  in scan_tarfile()  argument
757 	cur = (last != NULL) ? last->tf_next : pkg->pkg_first;  in scan_tarfile()
760 		    pkg->pkg_ofs;  in scan_tarfile()
764 		if (ofs < pkg->pkg_ofs) {  in scan_tarfile()
769 		if (ofs != pkg->pkg_ofs) {  in scan_tarfile()
770 			if (last != NULL && pkg->pkg_ofs == last->tf_ofs) {  in scan_tarfile()
774 				sz = ofs - pkg->pkg_ofs;  in scan_tarfile()
778 					if (get_zipped(pkg, buf, sz) == -1)  in scan_tarfile()
780 					sz = ofs - pkg->pkg_ofs;  in scan_tarfile()
789 		cur->tf_pkg = pkg;  in scan_tarfile()
792 			if (get_zipped(pkg, &cur->tf_hdr,  in scan_tarfile()
800 			 * a PKG. It marks the end of the archive.  in scan_tarfile()
808 			cur->tf_ofs = pkg->pkg_ofs;  in scan_tarfile()
820 			while (pkg->pkg_ofs < ofs) {  in scan_tarfile()
821 				if (get_zipped(pkg, buf, sizeof(buf)) == -1) {  in scan_tarfile()
831 			pkg->pkg_first = cur;  in scan_tarfile()
832 		pkg->pkg_last = cur;  in scan_tarfile()