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Return ISC_R_NOSPACE if the buffer isn't large enough to hold the DNS header.

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Brian Wellington
2001-04-19 18:28:35 +00:00
parent f6c845a79b
commit 59c85e1636
1 changed files with 3 additions and 2 deletions
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5
lib/dns/message.c
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@@ -15,7 +15,7 @@
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: message.c,v 1.189 2001/03/28 02:42:54 bwelling Exp $ */
/* $Id: message.c,v 1.190 2001/04/19 18:28:35 bwelling Exp $ */
/***
*** Imports
@@ -1612,7 +1612,8 @@ dns_message_renderbegin(dns_message_t *msg, dns_compress_t *cctx,
* buffer.
*/
isc_buffer_availableregion(buffer, &r);
REQUIRE(r.length >= DNS_MESSAGE_HEADERLEN);
if (r.length < DNS_MESSAGE_HEADERLEN)
return (ISC_R_NOSPACE);
if (r.length < msg->reserved)
return (ISC_R_NOSPACE);