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 #ifndef RDATA_GENERIC_DOA_259_C
18 #define RDATA_GENERIC_DOA_259_C
19
20 static inline isc_result_t
totext_doa(ARGS_TOTEXT)21 totext_doa(ARGS_TOTEXT) {
22 char buf[sizeof("4294967295 ")];
23 isc_region_t region;
24 uint32_t n;
25
26 REQUIRE(rdata != NULL);
27 REQUIRE(rdata->type == dns_rdatatype_doa);
28 REQUIRE(rdata->length != 0);
29
30 UNUSED(tctx);
31
32 dns_rdata_toregion(rdata, ®ion);
33
34 /*
35 * DOA-ENTERPRISE
36 */
37 n = uint32_fromregion(®ion);
38 isc_region_consume(®ion, 4);
39 snprintf(buf, sizeof(buf), "%u ", n);
40 RETERR(isc_str_tobuffer(buf, target));
41
42 /*
43 * DOA-TYPE
44 */
45 n = uint32_fromregion(®ion);
46 isc_region_consume(®ion, 4);
47 snprintf(buf, sizeof(buf), "%u ", n);
48 RETERR(isc_str_tobuffer(buf, target));
49
50 /*
51 * DOA-LOCATION
52 */
53 n = uint8_fromregion(®ion);
54 isc_region_consume(®ion, 1);
55 snprintf(buf, sizeof(buf), "%u ", n);
56 RETERR(isc_str_tobuffer(buf, target));
57
58 /*
59 * DOA-MEDIA-TYPE
60 */
61 RETERR(txt_totext(®ion, 1, target));
62 RETERR(isc_str_tobuffer(" ", target));
63
64 /*
65 * DOA-DATA
66 */
67 if (region.length == 0) {
68 return (isc_str_tobuffer("-", target));
69 } else {
70 return (isc_base64_totext(®ion, 60, "", target));
71 }
72 }
73
74 static inline isc_result_t
fromwire_doa(ARGS_FROMWIRE)75 fromwire_doa(ARGS_FROMWIRE) {
76 isc_region_t region;
77
78 UNUSED(rdclass);
79 UNUSED(dctx);
80 UNUSED(options);
81
82 REQUIRE(type == dns_rdatatype_doa);
83
84 isc_buffer_activeregion(source, ®ion);
85 /*
86 * DOA-MEDIA-TYPE may be an empty <character-string> (i.e.,
87 * comprising of just the length octet) and DOA-DATA can have
88 * zero length.
89 */
90 if (region.length < 4 + 4 + 1 + 1) {
91 return (ISC_R_UNEXPECTEDEND);
92 }
93
94 /*
95 * Check whether DOA-MEDIA-TYPE length is not malformed.
96 */
97 if (region.base[9] > region.length - 10) {
98 return (ISC_R_UNEXPECTEDEND);
99 }
100
101 isc_buffer_forward(source, region.length);
102 return (isc_mem_tobuffer(target, region.base, region.length));
103 }
104
105 static inline isc_result_t
towire_doa(ARGS_TOWIRE)106 towire_doa(ARGS_TOWIRE) {
107 isc_region_t region;
108
109 UNUSED(cctx);
110
111 REQUIRE(rdata != NULL);
112 REQUIRE(rdata->type == dns_rdatatype_doa);
113 REQUIRE(rdata->length != 0);
114
115 dns_rdata_toregion(rdata, ®ion);
116 return (isc_mem_tobuffer(target, region.base, region.length));
117 }
118
119 #endif /* RDATA_GENERIC_DOA_259_C */
120