int
main(int argc, char **argv)
{
getdns_dict *response = NULL;
char *response_str;
getdns_return_t r;
getdns_dict *address = NULL;
FILE *fp = NULL;
name = the_root;
if ((r = getdns_context_create(&context, 1))) {
fprintf(stderr, "Create context failed: %d\n", r);
return r;
}
extensions = getdns_dict_create();
if (! extensions) {
fprintf(stderr, "Could not create extensions dict\n");
r = GETDNS_RETURN_MEMORY_ERROR;
goto done_destroy_context;
}
if ((r = parse_args(argc, argv)))
goto done_destroy_context;
if (query_file) {
fp = fopen(query_file, "rt");
if (fp == NULL) {
fprintf(stderr, "Could not open query file: %s\n", query_file);
goto done_destroy_context;
}
}
/* Make the call */
do {
char line[1024], *token, *linev[256];
int linec;
if (interactive) {
if (!query_file) {
fprintf(stdout, "> ");
if (!fgets(line, 1024, stdin) || !*line)
break;
} else {
if (!fgets(line, 1024, fp) || !*line)
break;
fprintf(stdout,"Found query: %s", line);
}
linev[0] = argv[0];
linec = 1;
if ( ! (token = strtok(line, " \t\f\n\r")))
continue;
do linev[linec++] = token;
while (linec < 256 &&
(token = strtok(NULL, " \t\f\n\r")));
if ((r = parse_args(linec, linev))) {
if (r == CONTINUE)
continue;
else
goto done_destroy_context;
}
}
if (calltype == HOSTNAME &&
!(address = ipaddr_dict(context, name))) {
fprintf(stderr, "Could not convert \"%s\" "
"to an IP address", name);
continue;
}
if (async) {
switch (calltype) {
case GENERAL:
r = getdns_general(context, name, request_type,
extensions, &response, NULL, callback);
break;
case ADDRESS:
r = getdns_address(context, name,
extensions, &response, NULL, callback);
break;
case HOSTNAME:
r = getdns_hostname(context, address,
extensions, &response, NULL, callback);
break;
case SERVICE:
r = getdns_service(context, name,
extensions, &response, NULL, callback);
break;
default:
r = GETDNS_RETURN_GENERIC_ERROR;
break;
}
if (r)
goto done_destroy_extensions;
if (!batch_mode)
getdns_context_run(context);
} else {
switch (calltype) {
case GENERAL:
r = getdns_general_sync(context, name,
request_type, extensions, &response);
break;
case ADDRESS:
r = getdns_address_sync(context, name,
extensions, &response);
break;
case HOSTNAME:
r = getdns_hostname_sync(context, address,
extensions, &response);
break;
case SERVICE:
r = getdns_service_sync(context, name,
extensions, &response);
break;
default:
r = GETDNS_RETURN_GENERIC_ERROR;
break;
}
if (r)
goto done_destroy_extensions;
if (!quiet) {
if ((response_str = json ?
getdns_print_json_dict(response, json == 1)
: getdns_pretty_print_dict(response))) {
fprintf( stdout, "SYNC response:\n%s\n"
, response_str);
free(response_str);
} else {
r = GETDNS_RETURN_MEMORY_ERROR;
fprintf( stderr
, "Could not print response\n");
}
} else if (r == GETDNS_RETURN_GOOD)
fprintf(stdout, "Response code was: GOOD\n");
else if (interactive)
fprintf(stderr, "An error occurred: %d\n", r);
}
} while (interactive);
if (batch_mode)
getdns_context_run(context);
/* Clean up */
done_destroy_extensions:
getdns_dict_destroy(extensions);
done_destroy_context:
if (response) getdns_dict_destroy(response);
getdns_context_destroy(context);
if (fp)
fclose(fp);
if (r == CONTINUE)
return 0;
if (r)
fprintf(stderr, "An error occurred: %d\n", r);
return r;
}
/*---------------------------------------- getkeyviadane
fetch the smime/a key identified by the encoded keyid and host name
populate *certtxt with the key record, caller must free certtxt
*/
void
getkeyviadane(char *dname, int rrtype, char **certtxt)
{
int i;
uint32_t status;
size_t nans;
size_t numrrs;
int rrnum;
char getdnserr[MAX_ERROR_STRING+1];
uint32_t recrrtype;
getdns_return_t getdnsret;
getdns_context *getdnsctx = NULL;
getdns_dict *getdnsrsp = NULL;
getdns_dict *dnsrec = NULL;
getdns_dict *rr = NULL;
getdns_dict *rrdata = NULL;
getdns_list *dnsreplytree = NULL;
getdns_list *dnsans = NULL;
getdns_bindata *rawrdata = NULL;
*certtxt = NULL;
// create the context for DNS resolution using local OS system settings
getdnsret = getdns_context_create(&getdnsctx, 1);
if(getdnsret != GETDNS_RETURN_GOOD)
{
getdns_strerror(getdnsret, getdnserr, MAX_ERROR_STRING);
fprintf(stderr, "error creating getdns context, %d, %s\n"
, getdnsret, getdnserr);
return;
}
// getdns_context_set_resolution_type(getdnsctx, GETDNS_RESOLUTION_STUB);
// perform the DNS resolution request
getdnsret = getdns_general_sync(getdnsctx, dname, rrtype, NULL, &getdnsrsp);
if(getdnsret != GETDNS_RETURN_GOOD)
{
getdns_strerror(getdnsret, getdnserr, MAX_ERROR_STRING);
fprintf(stderr, "DNS request failed, %d, %s\n", getdnsret, getdnserr);
getdns_dict_destroy(getdnsrsp);
getdns_context_destroy(getdnsctx);
return;
}
// sanity check the result of the query
getdnsret = getdns_dict_get_int(getdnsrsp, (char *) "status", &status);
if(getdnsret != GETDNS_RETURN_GOOD || status != GETDNS_RESPSTATUS_GOOD)
{
fprintf(stderr, "DNS request did not return results\n");
getdns_dict_destroy(getdnsrsp);
getdns_context_destroy(getdnsctx);
return;
}
getdnsret = getdns_dict_get_list(getdnsrsp, (char *)"replies_tree", &dnsreplytree);
if(getdnsret != GETDNS_RETURN_GOOD)
{
fprintf(stderr, "DNS reply tree empty\n");
getdns_dict_destroy(getdnsrsp);
getdns_context_destroy(getdnsctx);
return;
}
nans = 0;
getdns_list_get_length(dnsreplytree, &nans);
for(i=0; i<nans && *certtxt == NULL; i++)
{
// extract a record from the reply tree, extract answer from that record
getdns_list_get_dict(dnsreplytree, i, &dnsrec);
getdnsret = getdns_dict_get_list(dnsrec, (char *)"answer", &dnsans);
if(getdnsret != GETDNS_RETURN_GOOD)
{
fprintf(stderr, "answer missing from DNS reply tree, exiting\n");
exit(1);
}
// walk the RRs in the DNS answer
getdns_list_get_length(dnsans, &numrrs);
for(rrnum=0; rrnum < numrrs && *certtxt == NULL; rrnum++)
{
getdns_list_get_dict(dnsans, rrnum, &rr);
recrrtype = 0;
getdns_dict_get_int(rr, (char *)"type", &recrrtype);
if(recrrtype == rrtype)
{
getdns_dict_get_dict(rr, (char *)"rdata", &rrdata);
getdnsret = getdns_dict_get_bindata(rrdata, (char *)"rdata_raw"
, &rawrdata);
if(getdnsret != GETDNS_RETURN_GOOD)
{
fprintf(stderr, "error, rdata missing address\n");
}
else
{
*certtxt = (char *) malloc(rawrdata->size + 1);
memcpy(*certtxt, rawrdata->data, rawrdata->size);
*certtxt[rawrdata->size] = '\0';
}
}
} // for rrnum
} // for i in nans
getdns_dict_destroy(getdnsrsp);
getdns_context_destroy(getdnsctx);
return;
} // getkeyviadane