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(Unicode C) DNS Query SOA RecordsSee more DNS ExamplesShows how to perform a DNS query to retrieve SOA records. Note: This example requires Chilkat v9.5.0.96 or later.
#include <C_CkDnsW.h> #include <C_CkJsonObjectW.h> void ChilkatSample(void) { HCkDnsW dns; HCkJsonObjectW json; BOOL success; const wchar_t *name; int ttl; const wchar_t *mname; const wchar_t *rname; int serial; int refresh; int retry; int expire; int minttl; int i; int count_i; dns = CkDnsW_Create(); json = CkJsonObjectW_Create(); CkJsonObjectW_putEmitCompact(json,FALSE); success = CkDnsW_Query(dns,L"SOA",L"x.com",json); if (success == FALSE) { wprintf(L"%s\n",CkDnsW_lastErrorText(dns)); CkDnsW_Dispose(dns); CkJsonObjectW_Dispose(json); return; } wprintf(L"%s\n",CkJsonObjectW_emit(json)); // Sample response. // Parsing code below.. // { // "answer": { // "soa": [ // { // "name": "x.com", // "ttl": 1800, // "mname": "alexia.ns.cloudflare.com", // "rname": "dns.cloudflare.com", // "serial": -1971124188, // "refresh": 10000, // "retry": 2400, // "expire": 604800, // "minttl": 1800 // } // ] // } // } // Use this online tool to generate parsing code from sample JSON: // Generate Parsing Code from JSON i = 0; count_i = CkJsonObjectW_SizeOfArray(json,L"answer.soa"); while (i < count_i) { CkJsonObjectW_putI(json,i); name = CkJsonObjectW_stringOf(json,L"answer.soa[i].name"); ttl = CkJsonObjectW_IntOf(json,L"answer.soa[i].ttl"); mname = CkJsonObjectW_stringOf(json,L"answer.soa[i].mname"); rname = CkJsonObjectW_stringOf(json,L"answer.soa[i].rname"); serial = CkJsonObjectW_IntOf(json,L"answer.soa[i].serial"); refresh = CkJsonObjectW_IntOf(json,L"answer.soa[i].refresh"); retry = CkJsonObjectW_IntOf(json,L"answer.soa[i].retry"); expire = CkJsonObjectW_IntOf(json,L"answer.soa[i].expire"); minttl = CkJsonObjectW_IntOf(json,L"answer.soa[i].minttl"); i = i + 1; } CkDnsW_Dispose(dns); CkJsonObjectW_Dispose(json); } |
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