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author | dougb <dougb@FreeBSD.org> | 2011-07-16 11:12:09 +0000 |
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committer | dougb <dougb@FreeBSD.org> | 2011-07-16 11:12:09 +0000 |
commit | f4894c219c9f0fee1e1d5d793748161bba7d4111 (patch) | |
tree | 7873e6a2dac5f9ddbfefa3b07f3cf0570f682321 /contrib/bind9/lib/export/samples/sample.c | |
parent | 1fab7143c5a0cf07ad84fe178bb29590f5cd2733 (diff) | |
parent | 387965661eaa775833b1e35b917f8e568ab7f5c6 (diff) | |
download | FreeBSD-src-f4894c219c9f0fee1e1d5d793748161bba7d4111.zip FreeBSD-src-f4894c219c9f0fee1e1d5d793748161bba7d4111.tar.gz |
Upgrade to version 9.8.0-P4
This version has many new features, see /usr/share/doc/bind9/README
for details.
Diffstat (limited to 'contrib/bind9/lib/export/samples/sample.c')
-rw-r--r-- | contrib/bind9/lib/export/samples/sample.c | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/contrib/bind9/lib/export/samples/sample.c b/contrib/bind9/lib/export/samples/sample.c new file mode 100644 index 0000000..6564f0e --- /dev/null +++ b/contrib/bind9/lib/export/samples/sample.c @@ -0,0 +1,378 @@ +/* + * Copyright (C) 2009 Internet Systems Consortium, Inc. ("ISC") + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, + * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM + * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/* $Id: sample.c,v 1.5 2009-09-29 15:06:07 fdupont Exp $ */ + +#include <config.h> + +#include <sys/types.h> +#include <sys/socket.h> + +#include <netinet/in.h> + +#include <arpa/inet.h> + +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <netdb.h> + +#include <isc/base64.h> +#include <isc/buffer.h> +#include <isc/lib.h> +#include <isc/mem.h> +#include <isc/sockaddr.h> +#include <isc/util.h> + +#include <dns/client.h> +#include <dns/fixedname.h> +#include <dns/keyvalues.h> +#include <dns/lib.h> +#include <dns/name.h> +#include <dns/rdata.h> +#include <dns/rdataset.h> +#include <dns/rdatastruct.h> +#include <dns/rdatatype.h> +#include <dns/result.h> +#include <dns/secalg.h> + +#include <dst/dst.h> + +static char *algname; + +static isc_result_t +printdata(dns_rdataset_t *rdataset, dns_name_t *owner) { + isc_buffer_t target; + isc_result_t result; + isc_region_t r; + char t[4096]; + + if (!dns_rdataset_isassociated(rdataset)) { + printf("[WARN: empty]\n"); + return (ISC_R_SUCCESS); + } + + isc_buffer_init(&target, t, sizeof(t)); + + result = dns_rdataset_totext(rdataset, owner, ISC_FALSE, ISC_FALSE, + &target); + if (result != ISC_R_SUCCESS) + return (result); + isc_buffer_usedregion(&target, &r); + printf("%.*s", (int)r.length, (char *)r.base); + + return (ISC_R_SUCCESS); +} + +ISC_PLATFORM_NORETURN_PRE static void +usage(void) ISC_PLATFORM_NORETURN_POST; + +static void +usage(void) { + fprintf(stderr, "sample [-t RRtype] " + "[[-a algorithm] [-e] -k keyname -K keystring] " + "[-s domain:serveraddr_for_domain ] " + "server_address hostname\n"); + + exit(1); +} + +static void +set_key(dns_client_t *client, char *keynamestr, char *keystr, + isc_boolean_t is_sep, isc_mem_t **mctxp) +{ + isc_result_t result; + dns_fixedname_t fkeyname; + size_t namelen; + dns_name_t *keyname; + dns_rdata_dnskey_t keystruct; + unsigned char keydata[4096]; + isc_buffer_t keydatabuf; + unsigned char rrdata[4096]; + isc_buffer_t rrdatabuf; + isc_buffer_t b; + isc_textregion_t tr; + isc_region_t r; + dns_secalg_t alg; + + result = isc_mem_create(0, 0, mctxp); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "failed to crate mctx\n"); + exit(1); + } + + if (algname != NULL) { + tr.base = algname; + tr.length = strlen(algname); + result = dns_secalg_fromtext(&alg, &tr); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "failed to identify the algorithm\n"); + exit(1); + } + } else + alg = DNS_KEYALG_RSASHA1; + + keystruct.common.rdclass = dns_rdataclass_in; + keystruct.common.rdtype = dns_rdatatype_dnskey; + keystruct.flags = DNS_KEYOWNER_ZONE; /* fixed */ + if (is_sep) + keystruct.flags |= DNS_KEYFLAG_KSK; + keystruct.protocol = DNS_KEYPROTO_DNSSEC; /* fixed */ + keystruct.algorithm = alg; + + isc_buffer_init(&keydatabuf, keydata, sizeof(keydata)); + isc_buffer_init(&rrdatabuf, rrdata, sizeof(rrdata)); + result = isc_base64_decodestring(keystr, &keydatabuf); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "base64 decode failed\n"); + exit(1); + } + isc_buffer_usedregion(&keydatabuf, &r); + keystruct.datalen = r.length; + keystruct.data = r.base; + + result = dns_rdata_fromstruct(NULL, keystruct.common.rdclass, + keystruct.common.rdtype, + &keystruct, &rrdatabuf); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "failed to construct key rdata\n"); + exit(1); + } + namelen = strlen(keynamestr); + isc_buffer_init(&b, keynamestr, namelen); + isc_buffer_add(&b, namelen); + dns_fixedname_init(&fkeyname); + keyname = dns_fixedname_name(&fkeyname); + result = dns_name_fromtext(keyname, &b, dns_rootname, 0, NULL); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "failed to construct key name\n"); + exit(1); + } + result = dns_client_addtrustedkey(client, dns_rdataclass_in, + keyname, &rrdatabuf); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "failed to add key for %s\n", + keynamestr); + exit(1); + } +} + +static void +addserver(dns_client_t *client, const char *addrstr, const char *namespace) { + struct addrinfo hints, *res; + int gai_error; + isc_sockaddr_t sa; + isc_sockaddrlist_t servers; + isc_result_t result; + size_t namelen; + isc_buffer_t b; + dns_fixedname_t fname; + dns_name_t *name = NULL; + + memset(&hints, 0, sizeof(hints)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_DGRAM; + hints.ai_protocol = IPPROTO_UDP; + hints.ai_flags = AI_NUMERICHOST; + gai_error = getaddrinfo(addrstr, "53", &hints, &res); + if (gai_error != 0) { + fprintf(stderr, "getaddrinfo failed: %s\n", + gai_strerror(gai_error)); + exit(1); + } + INSIST(res->ai_addrlen <= sizeof(sa.type)); + memcpy(&sa.type, res->ai_addr, res->ai_addrlen); + freeaddrinfo(res); + sa.length = res->ai_addrlen; + ISC_LINK_INIT(&sa, link); + ISC_LIST_INIT(servers); + ISC_LIST_APPEND(servers, &sa, link); + + if (namespace != NULL) { + namelen = strlen(namespace); + isc_buffer_init(&b, namespace, namelen); + isc_buffer_add(&b, namelen); + dns_fixedname_init(&fname); + name = dns_fixedname_name(&fname); + result = dns_name_fromtext(name, &b, dns_rootname, 0, NULL); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "failed to convert qname: %d\n", + result); + exit(1); + } + } + + result = dns_client_setservers(client, dns_rdataclass_in, name, + &servers); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "set server failed: %d\n", result); + exit(1); + } +} + +int +main(int argc, char *argv[]) { + int ch; + isc_textregion_t tr; + char *altserver = NULL; + char *altserveraddr = NULL; + char *altservername = NULL; + dns_client_t *client = NULL; + char *keynamestr = NULL; + char *keystr = NULL; + isc_result_t result; + isc_buffer_t b; + dns_fixedname_t qname0; + size_t namelen; + dns_name_t *qname, *name; + dns_rdatatype_t type = dns_rdatatype_a; + dns_rdataset_t *rdataset; + dns_namelist_t namelist; + isc_mem_t *keymctx = NULL; + unsigned int clientopt, resopt; + isc_boolean_t is_sep = ISC_FALSE; + + while ((ch = getopt(argc, argv, "a:es:t:k:K:")) != -1) { + switch (ch) { + case 't': + tr.base = optarg; + tr.length = strlen(optarg); + result = dns_rdatatype_fromtext(&type, &tr); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, + "invalid RRtype: %s\n", optarg); + exit(1); + } + break; + case 'a': + algname = optarg; + break; + case 'e': + is_sep = ISC_TRUE; + break; + case 's': + if (altserver != NULL) { + fprintf(stderr, "alternate server " + "already defined: %s\n", + altserver); + exit(1); + } + altserver = optarg; + break; + case 'k': + keynamestr = optarg; + break; + case 'K': + keystr = optarg; + break; + default: + usage(); + } + } + + argc -= optind; + argv += optind; + if (argc < 2) + usage(); + + if (altserver != NULL) { + char *cp; + + cp = strchr(altserver, ':'); + if (cp == NULL) { + fprintf(stderr, "invalid alternate server: %s\n", + altserver); + exit(1); + } + *cp = '\0'; + altservername = altserver; + altserveraddr = cp + 1; + } + + isc_lib_register(); + result = dns_lib_init(); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "dns_lib_init failed: %d\n", result); + exit(1); + } + + clientopt = 0; + result = dns_client_create(&client, clientopt); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, "dns_client_create failed: %d\n", result); + exit(1); + } + + /* Set the nameserver */ + addserver(client, argv[0], NULL); + + /* Set the alternate nameserver (when specified) */ + if (altserver != NULL) + addserver(client, altserveraddr, altservername); + + /* Install DNSSEC key (if given) */ + if (keynamestr != NULL) { + if (keystr == NULL) { + fprintf(stderr, + "key string is missing " + "while key name is provided\n"); + exit(1); + } + set_key(client, keynamestr, keystr, is_sep, &keymctx); + } + + /* Construct qname */ + namelen = strlen(argv[1]); + isc_buffer_init(&b, argv[1], namelen); + isc_buffer_add(&b, namelen); + dns_fixedname_init(&qname0); + qname = dns_fixedname_name(&qname0); + result = dns_name_fromtext(qname, &b, dns_rootname, 0, NULL); + if (result != ISC_R_SUCCESS) + fprintf(stderr, "failed to convert qname: %d\n", result); + + /* Perform resolution */ + resopt = 0; + if (keynamestr == NULL) + resopt |= DNS_CLIENTRESOPT_NODNSSEC; + ISC_LIST_INIT(namelist); + result = dns_client_resolve(client, qname, dns_rdataclass_in, type, + resopt, &namelist); + if (result != ISC_R_SUCCESS) { + fprintf(stderr, + "resolution failed: %s\n", dns_result_totext(result)); + } + for (name = ISC_LIST_HEAD(namelist); name != NULL; + name = ISC_LIST_NEXT(name, link)) { + for (rdataset = ISC_LIST_HEAD(name->list); + rdataset != NULL; + rdataset = ISC_LIST_NEXT(rdataset, link)) { + if (printdata(rdataset, name) != ISC_R_SUCCESS) + fprintf(stderr, "print data failed\n"); + } + } + + dns_client_freeresanswer(client, &namelist); + + /* Cleanup */ + dns_client_destroy(&client); + if (keynamestr != NULL) + isc_mem_destroy(&keymctx); + dns_lib_shutdown(); + + exit(0); +} |