mirror of
https://github.com/isc-projects/bind9.git
synced 2026-04-24 07:41:10 -04:00
78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2000 Internet Software Consortium.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
|
|
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
|
|
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
|
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
|
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
|
|
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <assert.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include <lwres/lwbuffer.h>
|
|
#include <lwres/lwpacket.h>
|
|
#include <lwres/result.h>
|
|
|
|
#include "assert_p.h"
|
|
|
|
#define LWPACKET_LENGTH \
|
|
(sizeof(lwres_uint16_t) * 4 + sizeof(lwres_uint32_t) * 5)
|
|
|
|
lwres_result_t
|
|
lwres_lwpacket_renderheader(lwres_buffer_t *b, lwres_lwpacket_t *pkt) {
|
|
REQUIRE(b != NULL);
|
|
REQUIRE(pkt != NULL);
|
|
|
|
if (!SPACE_OK(b, LWPACKET_LENGTH))
|
|
return (LWRES_R_UNEXPECTEDEND);
|
|
|
|
lwres_buffer_putuint32(b, pkt->length);
|
|
lwres_buffer_putuint16(b, pkt->version);
|
|
lwres_buffer_putuint16(b, pkt->pktflags);
|
|
lwres_buffer_putuint32(b, pkt->serial);
|
|
lwres_buffer_putuint32(b, pkt->opcode);
|
|
lwres_buffer_putuint32(b, pkt->result);
|
|
lwres_buffer_putuint32(b, pkt->recvlength);
|
|
lwres_buffer_putuint16(b, pkt->authtype);
|
|
lwres_buffer_putuint16(b, pkt->authlength);
|
|
|
|
return (LWRES_R_SUCCESS);
|
|
}
|
|
|
|
lwres_result_t
|
|
lwres_lwpacket_parseheader(lwres_buffer_t *b, lwres_lwpacket_t *pkt) {
|
|
lwres_uint32_t space;
|
|
|
|
REQUIRE(b != NULL);
|
|
REQUIRE(pkt != NULL);
|
|
|
|
space = LWRES_BUFFER_REMAINING(b);
|
|
if (space < LWPACKET_LENGTH)
|
|
return (LWRES_R_UNEXPECTEDEND);
|
|
|
|
pkt->length = lwres_buffer_getuint32(b);
|
|
if (pkt->length > space)
|
|
return (LWRES_R_UNEXPECTEDEND);
|
|
pkt->version = lwres_buffer_getuint16(b);
|
|
pkt->pktflags = lwres_buffer_getuint16(b);
|
|
pkt->serial = lwres_buffer_getuint32(b);
|
|
pkt->opcode = lwres_buffer_getuint32(b);
|
|
pkt->result = lwres_buffer_getuint32(b);
|
|
pkt->recvlength = lwres_buffer_getuint32(b);
|
|
pkt->authtype = lwres_buffer_getuint16(b);
|
|
pkt->authlength = lwres_buffer_getuint16(b);
|
|
|
|
return (LWRES_R_SUCCESS);
|
|
}
|