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Diffstat (limited to 'external/unbound/winrc/anchor-update.c')
| -rw-r--r-- | external/unbound/winrc/anchor-update.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/external/unbound/winrc/anchor-update.c b/external/unbound/winrc/anchor-update.c new file mode 100644 index 000000000..2b22e0142 --- /dev/null +++ b/external/unbound/winrc/anchor-update.c @@ -0,0 +1,152 @@ +/* + * winrc/anchor-update.c - windows trust anchor update util + * + * Copyright (c) 2009, NLnet Labs. All rights reserved. + * + * This software is open source. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of the NLNET LABS nor the names of its contributors may + * be used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * \file + * + * This file is made because contrib/update-anchor.sh does not work on + * windows (no shell). + */ +#include "config.h" +#include "libunbound/unbound.h" +#include "ldns/rrdef.h" +#include "ldns/pkthdr.h" +#include "ldns/wire2str.h" + +/** usage */ +static void +usage(void) +{ + printf("usage: { name-of-domain filename }+ \n"); + printf("exit codes: 0 anchors updated, 1 no changes, 2 errors.\n"); + exit(1); +} + +/** fatal exit */ +static void fatal(const char* str) +{ + printf("fatal error: %s\n", str); + exit(2); +} + +/** lookup data */ +static struct ub_result* +do_lookup(struct ub_ctx* ctx, char* domain) +{ + struct ub_result* result = NULL; + int r; + r = ub_resolve(ctx, domain, LDNS_RR_TYPE_DNSKEY, LDNS_RR_CLASS_IN, + &result); + if(r) { + printf("failed to lookup %s\n", ub_strerror(r)); + fatal("ub_resolve failed"); + } + if(!result->havedata && (result->rcode == LDNS_RCODE_SERVFAIL || + result->rcode == LDNS_RCODE_REFUSED)) + return NULL; /* probably no internet connection */ + if(!result->havedata) fatal("result has no data"); + if(!result->secure) fatal("result is not secure"); + return result; +} + +/** print result to file */ +static void +do_print(struct ub_result* result, char* file) +{ + FILE* out = fopen(file, "w"); + char s[65535], t[32]; + int i; + if(!out) { + perror(file); + fatal("fopen failed"); + } + i = 0; + if(result->havedata) + while(result->data[i]) { + sldns_wire2str_rdata_buf((uint8_t*)result->data[i], + (size_t)result->len[i], s, sizeof(s), + (uint16_t)result->qtype); + sldns_wire2str_type_buf((uint16_t)result->qtype, t, sizeof(t)); + fprintf(out, "%s\t%s\t%s\n", result->qname, t, s); + i++; + } + fclose(out); +} + +/** update domain to file */ +static int +do_update(char* domain, char* file) +{ + struct ub_ctx* ctx; + struct ub_result* result; + int r; + printf("updating %s to %s\n", domain, file); + ctx = ub_ctx_create(); + if(!ctx) fatal("ub_ctx_create failed"); + + if((r=ub_ctx_add_ta_file(ctx, file))) { + printf("%s\n", ub_strerror(r)); + fatal("ub_ctx_add_ta_file failed"); + } + + if(!(result=do_lookup(ctx, domain))) { + ub_ctx_delete(ctx); + return 1; + } + ub_ctx_delete(ctx); + do_print(result, file); + ub_resolve_free(result); + return 0; +} + +/** anchor update main */ +int main(int argc, char** argv) +{ + int retcode = 1; + if(argc == 1) { + usage(); + } + argc--; + argv++; + while(argc > 0) { + int r = do_update(argv[0], argv[1]); + if(r == 0) retcode = 0; + + /* next */ + argc-=2; + argv+=2; + } + return retcode; +} |