upstream/bind9
1
0
Fork 0
mirror of https://github.com/isc-projects/bind9.git synced 2026-05-28 04:34:54 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Use a tmp file to dump the zone to so that we don't destroy the current

Browse source 
version unless we have successfully written to disk.
This commit is contained in:
Mark Andrews 2000-01-31 07:45:18 +00:00
parent b1058f88f9
commit d718d8e129
1 changed files with 36 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

39
lib/dns/zone.c
View file

@ -15,7 +15,7 @@
* SOFTWARE.
*/
/* $Id: zone.c,v 1.73 2000/01/31 02:37:58 marka Exp $ */
/* $Id: zone.c,v 1.74 2000/01/31 07:45:18 marka Exp $ */
#include <config.h>
@ -1680,15 +1680,48 @@ dns_zone_dump(dns_zone_t *zone) {
isc_result_t result;
dns_dbversion_t *version = NULL;
dns_db_t *top = NULL;
char *buf;
int buflen;
FILE *f;
int n;
REQUIRE(DNS_ZONE_VALID(zone));
buflen = strlen(zone->database) + 20;
buf = isc_mem_get(zone->mctx, buflen);
result = isc_mktemplate(zone->database, buf, buflen);
if (result != ISC_R_SUCCESS)
return (result);
f = isc_ufile(buf);
if (f == NULL) {
result = DNS_R_UNEXPECTED;
goto cleanup;
}
dns_db_attach(zone->top, &top);
dns_db_currentversion(top, &version);
result = dns_master_dump(zone->mctx, top, version,
&dns_master_style_default, zone->database);
result = dns_master_dumptostream(zone->mctx, top, version,
&dns_master_style_default, f);
dns_db_closeversion(top, &version, ISC_FALSE);
dns_db_detach(&top);
n = fflush(f);
if (n != 0)
result = DNS_R_UNEXPECTED;
n = ferror(f);
if (n != 0)
result = DNS_R_UNEXPECTED;
n = fclose(f);
if (n != 0)
result = DNS_R_UNEXPECTED;
if (result == ISC_R_SUCCESS) {
n = rename(buf, zone->database);
if (n == -1) {
(void)remove(buf);
result = DNS_R_UNEXPECTED;
}
} else
(void)remove(buf);
cleanup:
isc_mem_put(zone->mctx, buf, buflen);
return (result);
}