contrib/bind9/lib/dns/keydata.c

   1 /*
   2  * Copyright (C) 2009  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: keydata.c,v 1.3 2009/07/01 23:47:36 tbox Exp $ */
  18
  19 /*! \file */
  20
  21 #include <config.h>
  22
  23
  24 #include <isc/buffer.h>
  25 #include <isc/mem.h>
  26 #include <isc/string.h>
  27 #include <isc/util.h>
  28
  29 #include <dns/rdata.h>
  30 #include <dns/rdatastruct.h>
  31 #include <dns/keydata.h>
  32
  33 isc_result_t
  34 dns_keydata_todnskey(dns_rdata_keydata_t *keydata,
  35                      dns_rdata_dnskey_t *dnskey, isc_mem_t *mctx)
  36 {
  37         REQUIRE(keydata != NULL && dnskey != NULL);
  38
  39         dnskey->common.rdtype = dns_rdatatype_dnskey;
  40         dnskey->common.rdclass = keydata->common.rdclass;
  41         dnskey->mctx = mctx;
  42         dnskey->flags = keydata->flags;
  43         dnskey->protocol = keydata->protocol;
  44         dnskey->algorithm = keydata->algorithm;
  45
  46         dnskey->datalen = keydata->datalen;
  47
  48         if (mctx == NULL)
  49                 dnskey->data = keydata->data;
  50         else {
  51                 dnskey->data = isc_mem_allocate(mctx, dnskey->datalen);
  52                 if (dnskey->data == NULL)
  53                         return (ISC_R_NOMEMORY);
  54                 memcpy(dnskey->data, keydata->data, dnskey->datalen);
  55         }
  56
  57         return (ISC_R_SUCCESS);
  58 }
  59
  60 isc_result_t
  61 dns_keydata_fromdnskey(dns_rdata_keydata_t *keydata,
  62                        dns_rdata_dnskey_t *dnskey,
  63                        isc_uint32_t refresh, isc_uint32_t addhd,
  64                        isc_uint32_t removehd, isc_mem_t *mctx)
  65 {
  66         REQUIRE(keydata != NULL && dnskey != NULL);
  67
  68         keydata->common.rdtype = dns_rdatatype_keydata;
  69         keydata->common.rdclass = dnskey->common.rdclass;
  70         keydata->mctx = mctx;
  71         keydata->refresh = refresh;
  72         keydata->addhd = addhd;
  73         keydata->removehd = removehd;
  74         keydata->flags = dnskey->flags;
  75         keydata->protocol = dnskey->protocol;
  76         keydata->algorithm = dnskey->algorithm;
  77
  78         keydata->datalen = dnskey->datalen;
  79         if (mctx == NULL)
  80                 keydata->data = dnskey->data;
  81         else {
  82                 keydata->data = isc_mem_allocate(mctx, keydata->datalen);
  83                 if (keydata->data == NULL)
  84                         return (ISC_R_NOMEMORY);
  85                 memcpy(keydata->data, dnskey->data, keydata->datalen);
  86         }
  87
  88         return (ISC_R_SUCCESS);
  89 }