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
26 static inline isc_result_t
totext_cert(ARGS_TOTEXT)27 totext_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
77 static inline isc_result_t
fromwire_cert(ARGS_FROMWIRE)78 fromwire_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
96 static inline isc_result_t
towire_cert(ARGS_TOWIRE)97 towire_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