1/*
2 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
9 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
10 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
11 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
12 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
13 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
14 * PERFORMANCE OF THIS SOFTWARE.
15 */
16
17/* $Id: cert_37.c,v 1.12 2020/02/26 18:47:58 florian Exp $ */
18
19/* Reviewed: Wed Mar 15 21:14:32 EST 2000 by tale */
20
21/* RFC2538 */
22
23#ifndef RDATA_GENERIC_CERT_37_C
24#define RDATA_GENERIC_CERT_37_C
25
26static inline isc_result_t
27totext_cert(ARGS_TOTEXT) {
28	isc_region_t sr;
29	char buf[sizeof("64000 ")];
30	unsigned int n;
31
32	REQUIRE(rdata->type == dns_rdatatype_cert);
33	REQUIRE(rdata->length != 0);
34
35	UNUSED(tctx);
36
37	dns_rdata_toregion(rdata, &sr);
38
39	/*
40	 * Type.
41	 */
42	n = uint16_fromregion(&sr);
43	isc_region_consume(&sr, 2);
44	RETERR(dns_cert_totext((dns_cert_t)n, target));
45	RETERR(isc_str_tobuffer(" ", target));
46
47	/*
48	 * Key tag.
49	 */
50	n = uint16_fromregion(&sr);
51	isc_region_consume(&sr, 2);
52	snprintf(buf, sizeof(buf), "%u ", n);
53	RETERR(isc_str_tobuffer(buf, target));
54
55	/*
56	 * Algorithm.
57	 */
58	RETERR(dns_secalg_totext(sr.base[0], target));
59	isc_region_consume(&sr, 1);
60
61	/*
62	 * Cert.
63	 */
64	if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
65		RETERR(isc_str_tobuffer(" (", target));
66	RETERR(isc_str_tobuffer(tctx->linebreak, target));
67	if (tctx->width == 0)   /* No splitting */
68		RETERR(isc_base64_totext(&sr, 60, "", target));
69	else
70		RETERR(isc_base64_totext(&sr, tctx->width - 2,
71					 tctx->linebreak, target));
72	if ((tctx->flags & DNS_STYLEFLAG_MULTILINE) != 0)
73		RETERR(isc_str_tobuffer(" )", target));
74	return (ISC_R_SUCCESS);
75}
76
77static inline isc_result_t
78fromwire_cert(ARGS_FROMWIRE) {
79	isc_region_t sr;
80
81	REQUIRE(type == dns_rdatatype_cert);
82
83	UNUSED(type);
84	UNUSED(rdclass);
85	UNUSED(dctx);
86	UNUSED(options);
87
88	isc_buffer_activeregion(source, &sr);
89	if (sr.length < 5)
90		return (ISC_R_UNEXPECTEDEND);
91
92	isc_buffer_forward(source, sr.length);
93	return (isc_mem_tobuffer(target, sr.base, sr.length));
94}
95
96static inline isc_result_t
97towire_cert(ARGS_TOWIRE) {
98	isc_region_t sr;
99
100	REQUIRE(rdata->type == dns_rdatatype_cert);
101	REQUIRE(rdata->length != 0);
102
103	UNUSED(cctx);
104
105	dns_rdata_toregion(rdata, &sr);
106	return (isc_mem_tobuffer(target, sr.base, sr.length));
107}
108
109#endif	/* RDATA_GENERIC_CERT_37_C */
110