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added dns_rdatatype_ismeta(); support zero-length rdata in dns_rdata_totext()

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This commit is contained in:
Andreas Gustafsson 1999-07-09 12:48:51 +00:00
parent 5cc89b11fa
commit f8aae50268
1 changed files with 15 additions and 1 deletions
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16
lib/dns/rdata.c
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@ -15,7 +15,7 @@
* SOFTWARE.
*/
/* $Id: rdata.c,v 1.53 1999/07/06 19:05:24 halley Exp $ */
/* $Id: rdata.c,v 1.54 1999/07/09 12:48:51 gson Exp $ */
#include <config.h>
@ -443,6 +443,10 @@ rdata_totext(dns_rdata_t *rdata, dns_rdata_textctx_t *tctx,
if (tctx->origin != NULL)
REQUIRE(dns_name_isabsolute(tctx->origin) == ISC_TRUE);
/* Some DynDNS meta-RRs have empty rdata. */
if (rdata->length == 0)
return (DNS_R_SUCCESS);
TOTEXTSWITCH
if (use_default)
@ -1354,3 +1358,13 @@ fromtext_error(void (*callback)(dns_rdatacallbacks_t *, char *, ...),
}
}
isc_boolean_t
dns_rdatatype_ismeta(dns_rdatatype_t type) {
struct tbl *t;
REQUIRE(type < 65536);
for (t = types; t->name != NULL; t++) {
if (type == t->value)
return ((t->flags & META) ? ISC_TRUE : ISC_FALSE);
}
return (ISC_FALSE); /* Unknown type, assume non-meta. */
}