printmsg.c revision 6e49e91bd08778d7eae45a2229dcf41ed97cc636
/*
* Copyright (C) 1998, 1999, 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 <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <isc/assertions.h>
#include <isc/error.h>
#include <isc/boolean.h>
#include <isc/region.h>
#include <isc/util.h>
#include <dns/types.h>
#include <dns/result.h>
#include <dns/name.h>
#include <dns/rdata.h>
#include <dns/rdataclass.h>
#include <dns/rdatatype.h>
#include <dns/rdatalist.h>
#include <dns/rdataset.h>
#include <dns/compress.h>
#include <dns/message.h>
#include "printmsg.h"
static char *opcodetext[] = {
"QUERY",
"IQUERY",
"STATUS",
"RESERVED3",
"NOTIFY",
"UPDATE",
"RESERVED6",
"RESERVED7",
"RESERVED8",
"RESERVED9",
"RESERVED10",
"RESERVED11",
"RESERVED12",
"RESERVED13",
"RESERVED14",
"RESERVED15"
};
static char *rcodetext[] = {
"NOERROR",
"FORMERR",
"SERVFAIL",
"NXDOMAIN",
"NOTIMPL",
"REFUSED",
"YXDOMAIN",
"YXRRSET",
"NXRRSET",
"NOTAUTH",
"NOTZONE",
"RESERVED11",
"RESERVED12",
"RESERVED13",
"RESERVED14",
"RESERVED15",
"BADVERS"
};
static isc_result_t
printsection(dns_message_t *msg, dns_section_t sectionid, char *section_name)
{
dns_name_t *name, *print_name;
dns_rdataset_t *rdataset;
isc_buffer_t target;
isc_result_t result;
isc_region_t r;
dns_name_t empty_name;
char t[4096];
isc_boolean_t first;
isc_boolean_t no_rdata;
if (sectionid == DNS_SECTION_QUESTION)
no_rdata = ISC_TRUE;
else
no_rdata = ISC_FALSE;
printf(";; %s SECTION:\n", section_name);
dns_name_init(&empty_name, NULL);
result = dns_message_firstname(msg, sectionid);
if (result == ISC_R_NOMORE)
return (ISC_R_SUCCESS);
else if (result != ISC_R_SUCCESS)
return (result);
for (;;) {
name = NULL;
dns_message_currentname(msg, sectionid, &name);
isc_buffer_init(&target, t, sizeof(t));
first = ISC_TRUE;
print_name = name;
for (rdataset = ISC_LIST_HEAD(name->list);
rdataset != NULL;
rdataset = ISC_LIST_NEXT(rdataset, link)) {
result = dns_rdataset_totext(rdataset,
print_name,
ISC_FALSE,
no_rdata,
&target);
if (result != ISC_R_SUCCESS)
return (result);
#ifdef USEINITALWS
if (first) {
print_name = &empty_name;
first = ISC_FALSE;
}
#endif
}
isc_buffer_usedregion(&target, &r);
printf("%.*s", (int)r.length, (char *)r.base);
result = dns_message_nextname(msg, sectionid);
if (result == ISC_R_NOMORE)
break;
else if (result != ISC_R_SUCCESS)
return (result);
}
return (ISC_R_SUCCESS);
}
static isc_result_t
printrdata(dns_message_t *msg, dns_rdataset_t *rdataset, dns_name_t *owner,
char *set_name)
{
isc_buffer_t target;
isc_result_t result;
isc_region_t r;
char t[4096];
UNUSED(msg);
printf(";; %s SECTION:\n", set_name);
isc_buffer_init(&target, t, sizeof(t));
result = dns_rdataset_totext(rdataset, owner, ISC_FALSE, ISC_FALSE,
&target);
if (result != ISC_R_SUCCESS)
return (result);
isc_buffer_usedregion(&target, &r);
printf("%.*s", (int)r.length, (char *)r.base);
return (ISC_R_SUCCESS);
}
isc_result_t
printmessage(dns_message_t *msg) {
isc_boolean_t did_flag = ISC_FALSE;
isc_result_t result;
dns_rdataset_t *opt, *tsig;
dns_name_t *tsigname;
result = ISC_R_SUCCESS;
printf(";; ->>HEADER<<- opcode: %s, status: %s, id: %u\n",
opcodetext[msg->opcode], rcodetext[msg->rcode], msg->id);
printf(";; flags: ");
if ((msg->flags & DNS_MESSAGEFLAG_QR) != 0) {
printf("qr");
did_flag = ISC_TRUE;
}
if ((msg->flags & DNS_MESSAGEFLAG_AA) != 0) {
printf("%saa", did_flag ? " " : "");
did_flag = ISC_TRUE;
}
if ((msg->flags & DNS_MESSAGEFLAG_TC) != 0) {
printf("%stc", did_flag ? " " : "");
did_flag = ISC_TRUE;
}
if ((msg->flags & DNS_MESSAGEFLAG_RD) != 0) {
printf("%srd", did_flag ? " " : "");
did_flag = ISC_TRUE;
}
if ((msg->flags & DNS_MESSAGEFLAG_RA) != 0) {
printf("%sra", did_flag ? " " : "");
did_flag = ISC_TRUE;
}
if ((msg->flags & DNS_MESSAGEFLAG_AD) != 0) {
printf("%sad", did_flag ? " " : "");
did_flag = ISC_TRUE;
}
if ((msg->flags & DNS_MESSAGEFLAG_CD) != 0) {
printf("%scd", did_flag ? " " : "");
did_flag = ISC_TRUE;
}
printf("; QUERY: %u, ANSWER: %u, AUTHORITY: %u, ADDITIONAL: %u\n",
msg->counts[DNS_SECTION_QUESTION],
msg->counts[DNS_SECTION_ANSWER],
msg->counts[DNS_SECTION_AUTHORITY],
msg->counts[DNS_SECTION_ADDITIONAL]);
opt = dns_message_getopt(msg);
if (opt != NULL)
printf(";; EDNS: version: %u, udp=%u\n",
(unsigned int)((opt->ttl & 0x00ff0000) >> 16),
(unsigned int)opt->rdclass);
tsigname = NULL;
tsig = dns_message_gettsig(msg, &tsigname);
if (tsig != NULL)
printf(";; PSEUDOSECTIONS: TSIG\n");
if (! ISC_LIST_EMPTY(msg->sections[DNS_SECTION_QUESTION])) {
printf("\n");
result = printsection(msg, DNS_SECTION_QUESTION, "QUESTION");
if (result != ISC_R_SUCCESS)
return (result);
}
if (! ISC_LIST_EMPTY(msg->sections[DNS_SECTION_ANSWER])) {
printf("\n");
result = printsection(msg, DNS_SECTION_ANSWER, "ANSWER");
if (result != ISC_R_SUCCESS)
return (result);
}
if (! ISC_LIST_EMPTY(msg->sections[DNS_SECTION_AUTHORITY])) {
printf("\n");
result = printsection(msg, DNS_SECTION_AUTHORITY, "AUTHORITY");
if (result != ISC_R_SUCCESS)
return (result);
}
if (! ISC_LIST_EMPTY(msg->sections[DNS_SECTION_ADDITIONAL])) {
printf("\n");
result = printsection(msg, DNS_SECTION_ADDITIONAL,
"ADDITIONAL");
if (result != ISC_R_SUCCESS)
return (result);
}
if (tsig != NULL) {
printf("\n");
result = printrdata(msg, tsig, tsigname,
"PSEUDOSECTION TSIG");
if (result != ISC_R_SUCCESS)
return (result);
}
printf("\n");
return (result);
}