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361. [func] When the RBT find or chain functions set the name and

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origin for a node that stores the root label
			the name is now set to an empty name, instead of ".",
			to simplify later use of the name and origin by
			dns_name_concatenate(), dns_name_totext() or
			dns_name_format().

 360.	[func]		dns_name_totext() and dns_name_format() now allow
			an empty name to be passed, which is formatted as "@".
This commit is contained in:
David Lawrence 2000-07-31 23:27:25 +00:00
parent 36e0c37908
commit c5944292e9
4 changed files with 36 additions and 36 deletions
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10
CHANGES
View file

@ -1,3 +1,13 @@
361. [func] When the RBT find or chain functions set the name and
origin for a node that stores the root label
the name is now set to an empty name, instead of ".",
to simplify later use of the name and origin by
dns_name_concatenate(), dns_name_totext() or
dns_name_format().
360. [func] dns_name_totext() and dns_name_format() now allow
an empty name to be passed, which is formatted as "@".
359. [bug] dnssec-signzone occasionally signed glue records.
358. [cleanup] Rename the intermediate files used by the dnssec

14
bin/tests/rbt_test.c
View file

@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: rbt_test.c,v 1.37 2000/07/31 22:33:59 tale Exp $ */
/* $Id: rbt_test.c,v 1.38 2000/07/31 23:27:22 tale Exp $ */
#include <config.h>
@ -26,6 +26,7 @@
#include <isc/commandline.h>
#include <isc/mem.h>
#include <isc/string.h>
#include <isc/util.h>
#include <dns/rbt.h>
#include <dns/fixedname.h>
@ -88,7 +89,7 @@ static void
delete_name(void *data, void *arg) {
dns_name_t *name;
(void)arg;
UNUSED(arg);
name = data;
isc_mem_put(mctx, data, sizeof(dns_name_t) + DNSNAMELEN);
}
@ -168,14 +169,7 @@ detail(dns_rbt_t *rbt, dns_name_t *name) {
if (result == ISC_R_SUCCESS) {
printf("\n name from dns_rbtnodechain_current: ");
/*
* If foundname is absolute, it includes the origin (which
* is intrinsically known here to be just ".").
*/
result = dns_name_concatenate(foundname,
dns_name_isabsolute(foundname) ?
NULL : origin,
result = dns_name_concatenate(foundname, origin,
fullname, NULL);
if (result == ISC_R_SUCCESS)
print_name(fullname);

24
lib/dns/include/dns/rbt.h
View file

@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: rbt.h,v 1.44 2000/07/27 09:48:10 tale Exp $ */
/* $Id: rbt.h,v 1.45 2000/07/31 23:27:25 tale Exp $ */
#ifndef DNS_RBT_H
#define DNS_RBT_H 1
@ -117,21 +117,17 @@ typedef isc_result_t (*dns_rbtfindcallback_t)(dns_rbtnode_t *node,
* accomplished with a dns_fixedname_t. It is _not_ necessary to reinitialize
* either 'name' or 'origin' between calls to the chain functions.
*
* NOTE WELL: the above rule means that when a chain points to the root of the
* tree of trees and that root stores only the root label, ".", it means that
* BOTH 'name' *and* 'origin' will be ".". As a common operation on
* 'name' and 'origin' is to dns_name_concatenate them after they have been
* set, special care must be taken to not concatenate 'name' if it is
* dns_name_isabsolute(), which is only true in this special circumstance.
* The logic behind having both 'name' and 'origin' be "." had to do with
* zone file dumping. It is likely that dumping of "." will be handled
* differently in the future and that the chain API will be changed such that
* in the case of ".", only 'origin' will be "." and name will be set to
* have zero labels.
* NOTE WELL: even though the name data at the root of the tree of trees will
* be absolute (typically just "."), it will will be made into a relative name
* with an origin of "." -- an empty name when the node is ".". This is
* because a common on operation on 'name' and 'origin' is to use
* dns_name_concatenate() on them to generate the complete name. An empty name
* can be detected when dns_name_countlabels == 0, and is printed by
* dns_name_totext()/dns_name_format() as "@", consistent with RFC1035's
* definition of "@" as the current origin.
*
* dns_rbtnodechain_current is similar to the _first, _last, _prev and _next
* functions but additionally can provide the node to which the chain points.
*/
* functions but additionally can provide the node to which the chain points. */
/*
* For use in allocating space for the chain of ancestor nodes.

24
lib/dns/rbt.c
View file

@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: rbt.c,v 1.88 2000/07/31 22:34:01 tale Exp $ */
/* $Id: rbt.c,v 1.89 2000/07/31 23:27:24 tale Exp $ */
/* Principal Authors: DCL */
@ -1948,7 +1948,8 @@ dns_rbtnodechain_init(dns_rbtnodechain_t *chain, isc_mem_t *mctx) {
isc_result_t
dns_rbtnodechain_current(dns_rbtnodechain_t *chain, dns_name_t *name,
dns_name_t *origin, dns_rbtnode_t **node) {
dns_name_t *origin, dns_rbtnode_t **node)
{
isc_result_t result = ISC_R_SUCCESS;
REQUIRE(VALID_CHAIN(chain));
@ -1964,18 +1965,17 @@ dns_rbtnodechain_current(dns_rbtnodechain_t *chain, dns_name_t *name,
if (chain->level_count == 0) {
/*
* Eliminate the root name, except when name is ".".
* Names in the top level tree are all absolute.
* Always make 'name' relative.
*/
if (dns_name_countlabels(name) > 1) {
INSIST(dns_name_isabsolute(name));
INSIST(dns_name_isabsolute(name));
/*
* XXX EVIL. But what _should_ I do?
*/
name->labels--;
name->length--;
name->attributes &= ~DNS_NAMEATTR_ABSOLUTE;
}
/*
* This is cheaper than dns_name_getlabelsequence().
*/
name->labels--;
name->length--;
name->attributes &= ~DNS_NAMEATTR_ABSOLUTE;
}
}