xref: /openbsd-src/usr.bin/dig/lib/dns/rdata/generic/cert_37.c (revision 873f12b9e6aaf39ba104db6af3d0dc687cd95f7e)
15185a700Sflorian /*
25185a700Sflorian  * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
35185a700Sflorian  *
45185a700Sflorian  * Permission to use, copy, modify, and/or distribute this software for any
55185a700Sflorian  * purpose with or without fee is hereby granted, provided that the above
65185a700Sflorian  * copyright notice and this permission notice appear in all copies.
75185a700Sflorian  *
85185a700Sflorian  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
95185a700Sflorian  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
105185a700Sflorian  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
115185a700Sflorian  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
125185a700Sflorian  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
135185a700Sflorian  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
145185a700Sflorian  * PERFORMANCE OF THIS SOFTWARE.
155185a700Sflorian  */
165185a700Sflorian 
17*873f12b9Sflorian /* $Id: cert_37.c,v 1.12 2020/02/26 18:47:58 florian Exp $ */
185185a700Sflorian 
195185a700Sflorian /* Reviewed: Wed Mar 15 21:14:32 EST 2000 by tale */
205185a700Sflorian 
215185a700Sflorian /* RFC2538 */
225185a700Sflorian 
235185a700Sflorian #ifndef RDATA_GENERIC_CERT_37_C
245185a700Sflorian #define RDATA_GENERIC_CERT_37_C
255185a700Sflorian 
265185a700Sflorian static inline isc_result_t
totext_cert(ARGS_TOTEXT)275185a700Sflorian totext_cert(ARGS_TOTEXT) {
285185a700Sflorian 	isc_region_t sr;
295185a700Sflorian 	char buf[sizeof("64000 ")];
305185a700Sflorian 	unsigned int n;
315185a700Sflorian 
325185a700Sflorian 	REQUIRE(rdata->type == dns_rdatatype_cert);
335185a700Sflorian 	REQUIRE(rdata->length != 0);
345185a700Sflorian 
355185a700Sflorian 	UNUSED(tctx);
365185a700Sflorian 
375185a700Sflorian 	dns_rdata_toregion(rdata, &sr);
385185a700Sflorian 
395185a700Sflorian 	/*
405185a700Sflorian 	 * Type.
415185a700Sflorian 	 */
425185a700Sflorian 	n = uint16_fromregion(&sr);
435185a700Sflorian 	isc_region_consume(&sr, 2);
445185a700Sflorian 	RETERR(dns_cert_totext((dns_cert_t)n, target));
45*873f12b9Sflorian 	RETERR(isc_str_tobuffer(" ", target));
465185a700Sflorian 
475185a700Sflorian 	/*
485185a700Sflorian 	 * Key tag.
495185a700Sflorian 	 */
505185a700Sflorian 	n = uint16_fromregion(&sr);
515185a700Sflorian 	isc_region_consume(&sr, 2);
525185a700Sflorian 	snprintf(buf, sizeof(buf), "%u ", n);
53*873f12b9Sflorian 	RETERR(isc_str_tobuffer(buf, target));
545185a700Sflorian 
555185a700Sflorian 	/*
565185a700Sflorian 	 * Algorithm.
575185a700Sflorian 	 */
585185a700Sflorian 	RETERR(dns_secalg_totext(sr.base[0], target));
595185a700Sflorian 	isc_region_consume(&sr, 1);
605185a700Sflorian 
615185a700Sflorian 	/*
625185a700Sflorian 	 * Cert.
635185a700Sflorian 	 */
645185a700Sflorian 	if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
65*873f12b9Sflorian 		RETERR(isc_str_tobuffer(" (", target));
66*873f12b9Sflorian 	RETERR(isc_str_tobuffer(tctx->linebreak, target));
675185a700Sflorian 	if (tctx->width == 0)   /* No splitting */
685185a700Sflorian 		RETERR(isc_base64_totext(&sr, 60, "", target));
695185a700Sflorian 	else
705185a700Sflorian 		RETERR(isc_base64_totext(&sr, tctx->width - 2,
715185a700Sflorian 					 tctx->linebreak, target));
725185a700Sflorian 	if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
73*873f12b9Sflorian 		RETERR(isc_str_tobuffer(" )", target));
745185a700Sflorian 	return (ISC_R_SUCCESS);
755185a700Sflorian }
765185a700Sflorian 
775185a700Sflorian static inline isc_result_t
fromwire_cert(ARGS_FROMWIRE)785185a700Sflorian fromwire_cert(ARGS_FROMWIRE) {
795185a700Sflorian 	isc_region_t sr;
805185a700Sflorian 
815185a700Sflorian 	REQUIRE(type == dns_rdatatype_cert);
825185a700Sflorian 
835185a700Sflorian 	UNUSED(type);
845185a700Sflorian 	UNUSED(rdclass);
855185a700Sflorian 	UNUSED(dctx);
865185a700Sflorian 	UNUSED(options);
875185a700Sflorian 
885185a700Sflorian 	isc_buffer_activeregion(source, &sr);
895185a700Sflorian 	if (sr.length < 5)
905185a700Sflorian 		return (ISC_R_UNEXPECTEDEND);
915185a700Sflorian 
925185a700Sflorian 	isc_buffer_forward(source, sr.length);
93637d8eb6Sflorian 	return (isc_mem_tobuffer(target, sr.base, sr.length));
945185a700Sflorian }
955185a700Sflorian 
965185a700Sflorian static inline isc_result_t
towire_cert(ARGS_TOWIRE)975185a700Sflorian towire_cert(ARGS_TOWIRE) {
985185a700Sflorian 	isc_region_t sr;
995185a700Sflorian 
1005185a700Sflorian 	REQUIRE(rdata->type == dns_rdatatype_cert);
1015185a700Sflorian 	REQUIRE(rdata->length != 0);
1025185a700Sflorian 
1035185a700Sflorian 	UNUSED(cctx);
1045185a700Sflorian 
1055185a700Sflorian 	dns_rdata_toregion(rdata, &sr);
106637d8eb6Sflorian 	return (isc_mem_tobuffer(target, sr.base, sr.length));
1075185a700Sflorian }
1085185a700Sflorian 
1095185a700Sflorian #endif	/* RDATA_GENERIC_CERT_37_C */
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