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bind9/lib/dns/result.c
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Mark Andrews 9ac7076eba 769. [func] Improved error reporting when parsing rdata. [RT #740] 
Two new error codes.  Also push back the last token, if it makes
sense to do so, so that it gets printed in the error message using
RETTOK macro, rather than straight return or RETERR.
2001-03-06 22:11:18 +00:00

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/*
* Copyright (C) 1998-2001 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.
*/
/* $Id: result.c,v 1.87 2001/03/06 22:10:31 marka Exp $ */
#include <config.h>
#include <isc/once.h>
#include <isc/util.h>
#include <dns/result.h>
#include <dns/lib.h>
static const char *text[DNS_R_NRESULTS] = {
"label too long", /* 0 DNS_R_LABELTOOLONG */
"bad escape", /* 1 DNS_R_BADESCAPE */
"bad bitstring", /* 2 DNS_R_BADBITSTRING */
"bitstring too long", /* 3 DNS_R_BITSTRINGTOOLONG */
"empty label", /* 4 DNS_R_EMPTYLABEL */
"bad dotted quad", /* 5 DNS_R_BADDOTTEDQUAD */
"invalid NS owner name (wildcard)", /* 6 DNS_R_INVALIDNS */
"unknown class/type", /* 7 DNS_R_UNKNOWN */
"bad label type", /* 8 DNS_R_BADLABELTYPE */
"bad compression pointer", /* 9 DNS_R_BADPOINTER */
"too many hops", /* 10 DNS_R_TOOMANYHOPS */
"disallowed (by application policy)", /* 11 DNS_R_DISALLOWED */
"extra input text", /* 12 DNS_R_EXTRATOKEN */
"extra input data", /* 13 DNS_R_EXTRADATA */
"text too long", /* 14 DNS_R_TEXTTOOLONG */
"not at top of zone", /* 15 DNS_R_NOTZONETOP */
"syntax error", /* 16 DNS_R_SYNTAX */
"bad checksum", /* 17 DNS_R_BADCKSUM */
"bad IPv6 address", /* 18 DNS_R_BADAAAA */
"no owner", /* 19 DNS_R_NOOWNER */
"no ttl", /* 20 DNS_R_NOTTL */
"bad class", /* 21 DNS_R_BADCLASS */
"name too long", /* 22 DNS_R_NAMETOOLONG */
"partial match", /* 23 DNS_R_PARTIALMATCH */
"new origin", /* 24 DNS_R_NEWORIGIN */
"unchanged", /* 25 DNS_R_UNCHANGED */
"bad ttl", /* 26 DNS_R_BADTTL */
"more data needed/to be rendered", /* 27 DNS_R_NOREDATA */
"continue", /* 28 DNS_R_CONTINUE */
"delegation", /* 29 DNS_R_DELEGATION */
"glue", /* 30 DNS_R_GLUE */
"dname", /* 31 DNS_R_DNAME */
"cname", /* 32 DNS_R_CNAME */
"bad database", /* 33 DNS_R_BADDB */
"zonecut", /* 34 DNS_R_ZONECUT */
"bad zone", /* 35 DNS_R_BADZONE */
"more data", /* 36 DNS_R_MOREDATA */
"up to date", /* 37 DNS_R_UPTODATE */
"tsig verify failure", /* 38 DNS_R_TSIGVERIFYFAILURE */
"tsig indicates error", /* 39 DNS_R_TSIGERRORSET */
"SIG failed to verify", /* 40 DNS_R_SIGINVALID */
"SIG has expired", /* 41 DNS_R_SIGEXPIRED */
"SIG validity period has not begun", /* 42 DNS_R_SIGFUTURE */
"key is unauthorized to sign data", /* 43 DNS_R_KEYUNAUTHORIZED */
"invalid time", /* 44 DNS_R_INVALIDTIME */
"expected a TSIG", /* 45 DNS_R_EXPECTEDTSIG */
"did not expect a TSIG", /* 46 DNS_R_UNEXPECTEDTSIG */
"TKEY is unacceptable", /* 47 DNS_R_INVALIDTKEY */
"hint", /* 48 DNS_R_HINT */
"drop", /* 49 DNS_R_DROP */
"zone not loaded", /* 50 DNS_R_NOTLOADED */
"ncache nxdomain", /* 51 DNS_R_NCACHENXDOMAIN */
"ncache nxrrset", /* 52 DNS_R_NCACHENXRRSET */
"wait", /* 53 DNS_R_WAIT */
"not verified yet", /* 54 DNS_R_NOTVERIFIEDYET */
"no identity", /* 55 DNS_R_NOIDENTITY */
"no journal", /* 56 DNS_R_NOJOURNAL */
"alias", /* 57 DNS_R_ALIAS */
"use TCP", /* 58 DNS_R_USETCP */
"no valid SIG", /* 59 DNS_R_NOVALIDSIG */
"no valid NXT", /* 60 DNS_R_NOVALIDNXT */
"not insecure", /* 61 DNS_R_NOTINSECURE */
"unknown service", /* 62 DNS_R_UNKNOWNSERVICE */
"recoverable error occurred", /* 63 DNS_R_RECOVERABLE */
"unknown opt attribute record", /* 64 DNS_R_UNKNOWNOPT */
"unexpected message id", /* 65 DNS_R_UNEXPECTEDID */
"seen include file", /* 66 DNS_R_SEENINCLUDE */
"not exact", /* 67 DNS_R_NOTEXACT */
"address blackholed", /* 68 DNS_R_BLACKHOLED */
"bad algorithm", /* 69 DNS_R_BADALG */
"invalid use of a meta type", /* 70 DNS_R_METATYPE */
"CNAME and other data", /* 71 DNS_R_CNAMEANDOTHER */
"multiple RRs of singleton type", /* 72 DNS_R_SINGLETON */
"hint nxrrset", /* 73 DNS_R_HINTNXRRSET */
"no master file configured" /* 74 DNS_R_NOMASTERFILE */
"unknown protocol" /* 75 DNS_R_UNKNOWNPROTO */
};
static const char *rcode_text[DNS_R_NRCODERESULTS] = {
"NOERROR", /* 0 DNS_R_NOEROR */
"FORMERR", /* 1 DNS_R_FORMERR */
"SERVFAIL", /* 2 DNS_R_SERVFAIL */
"NXDOMAIN", /* 3 DNS_R_NXDOMAIN */
"NOTIMP", /* 4 DNS_R_NOTIMP */
"REFUSED", /* 5 DNS_R_REFUSED */
"YXDOMAIN", /* 6 DNS_R_YXDOMAIN */
"YXRRSET", /* 7 DNS_R_YXRRSET */
"NXRRSET", /* 8 DNS_R_NXRRSET */
"NOTAUTH", /* 9 DNS_R_NOTAUTH */
"NOTZONE", /* 10 DNS_R_NOTZONE */
"<rcode 11>", /* 11 has no macro */
"<rcode 12>", /* 12 has no macro */
"<rcode 13>", /* 13 has no macro */
"<rcode 14>", /* 14 has no macro */
"<rcode 15>", /* 15 has no macro */
"BADVERS", /* 16 DNS_R_BADVERS */
};
#define DNS_RESULT_RESULTSET 2
#define DNS_RESULT_RCODERESULTSET 3
static isc_once_t once = ISC_ONCE_INIT;
static void
initialize_action(void) {
isc_result_t result;
result = isc_result_register(ISC_RESULTCLASS_DNS, DNS_R_NRESULTS,
text, dns_msgcat, DNS_RESULT_RESULTSET);
if (result == ISC_R_SUCCESS)
result = isc_result_register(ISC_RESULTCLASS_DNSRCODE,
DNS_R_NRCODERESULTS,
rcode_text, dns_msgcat,
DNS_RESULT_RCODERESULTSET);
if (result != ISC_R_SUCCESS)
UNEXPECTED_ERROR(__FILE__, __LINE__,
"isc_result_register() failed: %u", result);
}
static void
initialize(void) {
dns_lib_initmsgcat();
RUNTIME_CHECK(isc_once_do(&once, initialize_action) == ISC_R_SUCCESS);
}
const char *
dns_result_totext(isc_result_t result) {
initialize();
return (isc_result_totext(result));
}
void
dns_result_register(void) {
initialize();
}
dns_rcode_t
dns_result_torcode(isc_result_t result) {
dns_rcode_t rcode = dns_rcode_servfail;
if (DNS_RESULT_ISRCODE(result)) {
/*
* Rcodes can't be bigger than 12 bits, which is why we
* AND with 0xFFF instead of 0xFFFF.
*/
return ((dns_rcode_t)((result) & 0xFFF));
}
/*
* Try to supply an appropriate rcode.
*/
switch (result) {
case ISC_R_SUCCESS:
rcode = dns_rcode_noerror;
break;
case ISC_R_BADBASE64:
case ISC_R_NOSPACE:
case ISC_R_RANGE:
case ISC_R_UNEXPECTEDEND:
case DNS_R_BADAAAA:
case DNS_R_BADBITSTRING:
case DNS_R_BADCKSUM:
case DNS_R_BADCLASS:
case DNS_R_BADLABELTYPE:
case DNS_R_BADPOINTER:
case DNS_R_BADTTL:
case DNS_R_BADZONE:
case DNS_R_BITSTRINGTOOLONG:
case DNS_R_EXTRADATA:
case DNS_R_LABELTOOLONG:
case DNS_R_NOREDATA:
case DNS_R_SYNTAX:
case DNS_R_TEXTTOOLONG:
case DNS_R_TOOMANYHOPS:
case DNS_R_TSIGERRORSET:
case DNS_R_UNKNOWN:
rcode = dns_rcode_formerr;
break;
case DNS_R_DISALLOWED:
rcode = dns_rcode_refused;
break;
case DNS_R_TSIGVERIFYFAILURE:
rcode = dns_rcode_notauth;
break;
default:
rcode = dns_rcode_servfail;
}
return (rcode);
}
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