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don't use a temp buffer, it broke compression

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Michael Graff 1999-04-30 23:04:29 +00:00
parent 823e45c127
commit bfbf3f2d77
1 changed files with 8 additions and 14 deletions
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22
lib/dns/message.c
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@ -1109,7 +1109,6 @@ dns_message_rendersection(dns_message_t *msg, dns_section_t sectionid,
dns_name_t *name, *next_name;
dns_rdataset_t *rdataset, *next_rdataset;
unsigned int count, total;
isc_buffer_t subbuffer;
isc_boolean_t no_render_rdata;
dns_result_t result;
@ -1126,19 +1125,15 @@ dns_message_rendersection(dns_message_t *msg, dns_section_t sectionid,
name = ISC_LIST_HEAD(*section);
if (name == NULL)
return (ISC_R_SUCCESS);
/*
* Set up a temporary buffer to render into, since we want
* dns_rdataset_towire() to fail if it goes past the reserved
* size, too.
* Shrink the space in the buffer by the reserved amount.
*/
isc_buffer_available(msg->buffer, &r);
isc_buffer_init(&subbuffer, r.base, r.length - msg->reserved,
ISC_BUFFERTYPE_BINARY);
msg->buffer->length -= msg->reserved;
printf("---Start rendering section %u, count %u\n",
sectionid, msg->counts[sectionid]);
total = 0;
while (name != NULL) {
next_name = ISC_LIST_NEXT(name, link);
@ -1146,7 +1141,7 @@ dns_message_rendersection(dns_message_t *msg, dns_section_t sectionid,
rdataset = ISC_LIST_HEAD(name->list);
while (rdataset != NULL) {
next_rdataset = ISC_LIST_NEXT(rdataset, link);
used = subbuffer.used;
used = msg->buffer->used;
printf("Rendering rdataset, used = %u\n", used);
@ -1154,7 +1149,7 @@ dns_message_rendersection(dns_message_t *msg, dns_section_t sectionid,
result = dns_rdataset_towire(rdataset, name,
&msg->cctx,
no_render_rdata,
&subbuffer, &count);
msg->buffer, &count);
total += count;
printf("Rendered %u rdata, total %u\n", count, total);
@ -1164,8 +1159,8 @@ dns_message_rendersection(dns_message_t *msg, dns_section_t sectionid,
* so far, and return that status.
*/
if (result != DNS_R_SUCCESS) {
msg->buffer->length += msg->reserved;
msg->counts[sectionid] += total;
isc_buffer_add(msg->buffer, used);
return (result);
}
@ -1180,12 +1175,11 @@ dns_message_rendersection(dns_message_t *msg, dns_section_t sectionid,
name = next_name;
}
msg->buffer->length += msg->reserved;
msg->counts[sectionid] += total;
printf("Done with section %u, count %u, total rendered %u\n",
sectionid, msg->counts[sectionid], total);
isc_buffer_used(&subbuffer, &r);
isc_buffer_add(msg->buffer, r.length);
return (ISC_R_SUCCESS);
}