mirror of https://github.com/getdnsapi/getdns.git
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
#include <stdio.h>
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#include <assert.h>
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#include <getdns_core_only.h>
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int main()
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{
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getdns_return_t r; /* Holder for all function returns */
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getdns_context *context = NULL;
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getdns_dict *response = NULL;
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getdns_dict *extensions = NULL;
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getdns_bindata *address_data;
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char *first = NULL, *second = NULL;
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/* Create the DNS context for this call */
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if ((r = getdns_context_create(&context, 1)))
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fprintf(stderr, "Trying to create the context failed");
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else if (!(extensions = getdns_dict_create()))
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fprintf(stderr, "Could not create extensions dict.\n");
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else if ((r = getdns_dict_set_int(extensions, "return_both_v4_and_v6", GETDNS_EXTENSION_TRUE)))
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fprintf(stderr, "Trying to set an extension do both IPv4 and IPv6 failed");
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else if ((r = getdns_general_sync(context, "example.com", GETDNS_RRTYPE_A, extensions, &response)))
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fprintf(stderr, "Error scheduling synchronous request");
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else if ((r = getdns_dict_get_bindata(response, "/just_address_answers/0/address_data", &address_data)))
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fprintf(stderr, "Could not get first address");
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else if (!(first = getdns_display_ip_address(address_data)))
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fprintf(stderr, "Could not convert first address to string\n");
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else if ((r = getdns_dict_get_bindata(response, "/just_address_answers/1/address_data", &address_data)))
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fprintf(stderr, "Could not get second address");
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else if (!(second = getdns_display_ip_address(address_data)))
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fprintf(stderr, "Could not convert second address to string\n");
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if (first) {
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printf("The address is %s\n", first);
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free(first);
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}
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if (second) {
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printf("The address is %s\n", second);
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free(second);
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}
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/* Clean up */
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if (response)
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getdns_dict_destroy(response);
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if (extensions)
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getdns_dict_destroy(extensions);
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if (context)
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getdns_context_destroy(context);
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if (r) {
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assert( r != GETDNS_RETURN_GOOD );
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fprintf(stderr, ": %d\n", r);
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exit(EXIT_FAILURE);
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}
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/* Assuming we get here, leave gracefully */
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exit(EXIT_SUCCESS);
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}
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