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Allow master zones to not have a 'file' option, to support non-rbt

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databases.  Zones with a nonpersistent database and no 'file' option will get
an error logged at load time.
This commit is contained in:
Andreas Gustafsson
2000-11-18 02:54:22 +00:00
parent 055934c9dd
commit 2bd70b6822
3 changed files with 74 additions and 46 deletions
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96
lib/dns/zone.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: zone.c,v 1.254 2000/11/18 00:57:20 gson Exp $ */
/* $Id: zone.c,v 1.255 2000/11/18 02:54:18 gson Exp $ */
#include <config.h>
@@ -759,22 +759,37 @@ dns_zone_setorigin(dns_zone_t *zone, dns_name_t *origin) {
return (result);
}
static isc_result_t
dns_zone_setstring(dns_zone_t *zone, char **field, const char *value) {
char *copy;
if (value != NULL) {
copy = isc_mem_strdup(zone->mctx, value);
if (copy == NULL)
return (ISC_R_NOMEMORY);
} else {
copy = NULL;
}
if (*field != NULL)
isc_mem_free(zone->mctx, *field);
*field = copy;
return (ISC_R_SUCCESS);
}
isc_result_t
dns_zone_setfile(dns_zone_t *zone, const char *file) {
isc_result_t result = ISC_R_SUCCESS;
REQUIRE(DNS_ZONE_VALID(zone));
REQUIRE(file != NULL);
LOCK(&zone->lock);
if (zone->masterfile != NULL)
isc_mem_free(zone->mctx, zone->masterfile);
zone->masterfile = isc_mem_strdup(zone->mctx, file);
if (zone->masterfile == NULL)
result = ISC_R_NOMEMORY;
else
result = dns_zone_setstring(zone, &zone->masterfile, file);
if (result == ISC_R_SUCCESS)
result = default_journal(zone);
UNLOCK(&zone->lock);
return (result);
}
@@ -787,20 +802,26 @@ dns_zone_getfile(dns_zone_t *zone) {
static isc_result_t
default_journal(dns_zone_t *zone) {
int len;
isc_result_t result;
char *journal;
REQUIRE(DNS_ZONE_VALID(zone));
REQUIRE(zone->masterfile != NULL);
if (zone->journal != NULL)
isc_mem_free(zone->mctx, zone->journal);
len = strlen(zone->masterfile) + sizeof ".jnl"; /* includes '\0' */
zone->journal = isc_mem_allocate(zone->mctx, len);
if (zone->journal == NULL)
return (ISC_R_NOMEMORY);
strcpy(zone->journal, zone->masterfile);
strcat(zone->journal, ".jnl");
return (ISC_R_SUCCESS);
if (zone->masterfile != NULL) {
/* Calculate string length including '\0'. */
int len = strlen(zone->masterfile) + sizeof ".jnl";
journal = isc_mem_allocate(zone->mctx, len);
if (journal == NULL)
return (ISC_R_NOMEMORY);
strcpy(journal, zone->masterfile);
strcat(journal, ".jnl");
} else {
journal = NULL;
}
result = dns_zone_setstring(zone, &zone->journal, journal);
if (journal != NULL)
isc_mem_free(zone->mctx, journal);
return (result);
}
isc_result_t
@@ -808,15 +829,11 @@ dns_zone_setjournal(dns_zone_t *zone, const char *journal) {
isc_result_t result = ISC_R_SUCCESS;
REQUIRE(DNS_ZONE_VALID(zone));
REQUIRE(journal != NULL);
LOCK(&zone->lock);
if (zone->journal != NULL)
isc_mem_free(zone->mctx, zone->journal);
zone->journal = isc_mem_strdup(zone->mctx, journal);
if (zone->journal == NULL)
result = ISC_R_NOMEMORY;
result = dns_zone_setstring(zone, &zone->journal, journal);
UNLOCK(&zone->lock);
return (result);
}
@@ -842,10 +859,14 @@ dns_zone_load(dns_zone_t *zone) {
INSIST(zone->type != dns_zone_none);
if (zone->masterfile == NULL) {
if (zone->db != NULL && zone->masterfile == NULL) {
/*
* The zone has no master file (maybe it is the built-in
* version.bind. CH zone). Do nothing.
* The zone has no master file configured, but it already
* has a database. It could be the built-in
* version.bind. CH zone, a zone with a persistent
* database being reloaded, or maybe a zone that
* used to have a master file but whose configuration
* was changed so that it no longer has one. Do nothing.
*/
result = ISC_R_SUCCESS;
goto cleanup;
@@ -858,13 +879,14 @@ dns_zone_load(dns_zone_t *zone) {
* than the last time the zone was loaded. If the zone has not
* been loaded yet, zone->loadtime will be the epoch.
*/
if (!DNS_ZONE_FLAG(zone, DNS_ZONEFLG_HASINCLUDE)) {
if (zone->masterfile != NULL &&
! DNS_ZONE_FLAG(zone, DNS_ZONEFLG_HASINCLUDE)) {
result = isc_file_getmodtime(zone->masterfile, &filetime);
if (result == ISC_R_SUCCESS &&
!isc_time_isepoch(&zone->loadtime) &&
isc_time_compare(&filetime, &zone->loadtime) < 0) {
zone_log(zone, me, ISC_LOG_DEBUG(1),
"skipping: database file older"
"skipping: master file older"
" than last load");
result = ISC_R_SUCCESS;
goto cleanup;
@@ -895,8 +917,16 @@ dns_zone_load(dns_zone_t *zone) {
goto cleanup;
}
if (!dns_db_ispersistent(db))
result = zone_startload(db, zone, loadtime);
if (! dns_db_ispersistent(db)) {
if (zone->masterfile != NULL) {
result = zone_startload(db, zone, loadtime);
} else {
if (zone->type == dns_zone_master) {
zone_log(zone, me, ISC_LOG_ERROR,
"no master file configured");
}
}
}
if (result == DNS_R_CONTINUE) {
zone->flags |= DNS_ZONEFLG_LOADING;
@@ -1015,7 +1045,7 @@ zone_postload(dns_zone_t *zone, dns_db_t *db, isc_time_t loadtime,
zone->type == dns_zone_stub) {
if (result == ISC_R_FILENOTFOUND)
zone_log(zone, me, ISC_LOG_INFO,
"no database file");
"no master file");
else
zone_log(zone, me, ISC_LOG_ERROR,
"loading master file %s: %s",